./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/sum_2x3-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/sum_2x3-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5484cff0bd7499490d21ca1aa6f81abc8cec50b0 ...................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 00:26:10,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 00:26:10,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 00:26:10,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 00:26:10,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 00:26:10,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 00:26:10,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 00:26:10,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 00:26:10,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 00:26:10,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 00:26:10,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 00:26:10,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 00:26:10,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 00:26:10,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 00:26:10,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 00:26:10,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 00:26:10,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 00:26:10,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 00:26:10,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 00:26:11,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 00:26:11,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 00:26:11,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 00:26:11,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 00:26:11,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 00:26:11,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 00:26:11,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 00:26:11,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 00:26:11,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 00:26:11,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 00:26:11,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 00:26:11,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 00:26:11,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 00:26:11,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 00:26:11,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 00:26:11,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 00:26:11,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 00:26:11,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 00:26:11,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 00:26:11,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 00:26:11,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 00:26:11,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 00:26:11,035 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 00:26:11,057 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 00:26:11,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 00:26:11,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 00:26:11,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 00:26:11,060 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 00:26:11,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 00:26:11,061 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 00:26:11,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 00:26:11,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 00:26:11,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 00:26:11,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 00:26:11,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 00:26:11,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 00:26:11,063 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 00:26:11,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 00:26:11,064 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 00:26:11,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 00:26:11,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 00:26:11,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 00:26:11,065 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 00:26:11,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 00:26:11,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:26:11,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 00:26:11,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 00:26:11,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 00:26:11,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 00:26:11,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 00:26:11,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 00:26:11,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5484cff0bd7499490d21ca1aa6f81abc8cec50b0 [2019-11-28 00:26:11,347 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 00:26:11,358 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 00:26:11,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 00:26:11,363 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 00:26:11,364 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 00:26:11,364 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/sum_2x3-2.c [2019-11-28 00:26:11,430 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55a757c80/cd7a7a5fa1b24cb497b9f3c5bbc5d08b/FLAGf7cd7e054 [2019-11-28 00:26:11,817 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 00:26:11,818 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_2x3-2.c [2019-11-28 00:26:11,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55a757c80/cd7a7a5fa1b24cb497b9f3c5bbc5d08b/FLAGf7cd7e054 [2019-11-28 00:26:12,252 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55a757c80/cd7a7a5fa1b24cb497b9f3c5bbc5d08b [2019-11-28 00:26:12,256 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 00:26:12,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 00:26:12,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 00:26:12,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 00:26:12,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 00:26:12,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:26:12" (1/1) ... [2019-11-28 00:26:12,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57cbf806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:26:12, skipping insertion in model container [2019-11-28 00:26:12,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:26:12" (1/1) ... [2019-11-28 00:26:12,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 00:26:12,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 00:26:12,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:26:12,518 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 00:26:12,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:26:12,553 INFO L208 MainTranslator]: Completed translation [2019-11-28 00:26:12,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:26:12 WrapperNode [2019-11-28 00:26:12,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 00:26:12,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 00:26:12,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 00:26:12,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 00:26:12,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:26:12" (1/1) ... [2019-11-28 00:26:12,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:26:12" (1/1) ... [2019-11-28 00:26:12,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 00:26:12,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 00:26:12,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 00:26:12,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 00:26:12,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:26:12" (1/1) ... [2019-11-28 00:26:12,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:26:12" (1/1) ... [2019-11-28 00:26:12,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:26:12" (1/1) ... [2019-11-28 00:26:12,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:26:12" (1/1) ... [2019-11-28 00:26:12,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:26:12" (1/1) ... [2019-11-28 00:26:12,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:26:12" (1/1) ... [2019-11-28 00:26:12,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:26:12" (1/1) ... [2019-11-28 00:26:12,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 00:26:12,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 00:26:12,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 00:26:12,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 00:26:12,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:26:12" (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 [2019-11-28 00:26:12,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 00:26:12,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 00:26:12,711 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2019-11-28 00:26:12,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2019-11-28 00:26:12,864 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 00:26:12,864 INFO L297 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 00:26:12,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:26:12 BoogieIcfgContainer [2019-11-28 00:26:12,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 00:26:12,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 00:26:12,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 00:26:12,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 00:26:12,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:26:12" (1/3) ... [2019-11-28 00:26:12,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b7f92ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:26:12, skipping insertion in model container [2019-11-28 00:26:12,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:26:12" (2/3) ... [2019-11-28 00:26:12,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b7f92ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:26:12, skipping insertion in model container [2019-11-28 00:26:12,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:26:12" (3/3) ... [2019-11-28 00:26:12,872 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_2x3-2.c [2019-11-28 00:26:12,880 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 00:26:12,886 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 00:26:12,898 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 00:26:12,922 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 00:26:12,923 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 00:26:12,923 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 00:26:12,923 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 00:26:12,923 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 00:26:12,924 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 00:26:12,924 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 00:26:12,924 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 00:26:12,938 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-28 00:26:12,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 00:26:12,943 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:26:12,944 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:26:12,944 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:26:12,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:26:12,949 INFO L82 PathProgramCache]: Analyzing trace with hash 389977641, now seen corresponding path program 1 times [2019-11-28 00:26:12,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:26:12,956 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244964609] [2019-11-28 00:26:12,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:26:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:26:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:26:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:26:13,151 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244964609] [2019-11-28 00:26:13,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:26:13,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 00:26:13,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894681640] [2019-11-28 00:26:13,160 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 00:26:13,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:26:13,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 00:26:13,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 00:26:13,179 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 5 states. [2019-11-28 00:26:13,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:26:13,271 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2019-11-28 00:26:13,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 00:26:13,273 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 00:26:13,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:26:13,282 INFO L225 Difference]: With dead ends: 24 [2019-11-28 00:26:13,282 INFO L226 Difference]: Without dead ends: 14 [2019-11-28 00:26:13,286 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 00:26:13,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-28 00:26:13,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-28 00:26:13,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-28 00:26:13,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-11-28 00:26:13,327 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 9 [2019-11-28 00:26:13,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:26:13,327 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-11-28 00:26:13,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 00:26:13,328 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-11-28 00:26:13,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 00:26:13,329 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:26:13,329 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:26:13,330 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:26:13,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:26:13,330 INFO L82 PathProgramCache]: Analyzing trace with hash -881029229, now seen corresponding path program 1 times [2019-11-28 00:26:13,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:26:13,331 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059595475] [2019-11-28 00:26:13,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:26:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:26:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:26:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:26:13,511 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 00:26:13,511 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059595475] [2019-11-28 00:26:13,512 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038542325] [2019-11-28 00:26:13,512 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 [2019-11-28 00:26:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:26:13,557 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 00:26:13,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 00:26:13,628 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 00:26:13,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 00:26:13,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-11-28 00:26:13,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147344866] [2019-11-28 00:26:13,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 00:26:13,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:26:13,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 00:26:13,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-28 00:26:13,632 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 7 states. [2019-11-28 00:26:13,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:26:13,706 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-11-28 00:26:13,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 00:26:13,706 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-11-28 00:26:13,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:26:13,708 INFO L225 Difference]: With dead ends: 21 [2019-11-28 00:26:13,708 INFO L226 Difference]: Without dead ends: 17 [2019-11-28 00:26:13,709 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-11-28 00:26:13,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-28 00:26:13,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-28 00:26:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-28 00:26:13,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-11-28 00:26:13,716 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 15 [2019-11-28 00:26:13,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:26:13,717 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-11-28 00:26:13,717 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 00:26:13,717 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-11-28 00:26:13,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-28 00:26:13,718 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:26:13,719 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:26:13,923 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 00:26:13,923 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:26:13,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:26:13,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1824240471, now seen corresponding path program 2 times [2019-11-28 00:26:13,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:26:13,925 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29224081] [2019-11-28 00:26:13,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:26:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:26:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:26:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:26:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:26:14,281 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-28 00:26:14,282 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29224081] [2019-11-28 00:26:14,282 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440939593] [2019-11-28 00:26:14,282 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2019-11-28 00:26:14,327 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-28 00:26:14,327 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 00:26:14,328 WARN L253 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 33 conjunts are in the unsatisfiable core [2019-11-28 00:26:14,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 00:26:14,635 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-28 00:26:14,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 00:26:14,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 22 [2019-11-28 00:26:14,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28319280] [2019-11-28 00:26:14,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-28 00:26:14,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:26:14,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-28 00:26:14,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2019-11-28 00:26:14,646 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 22 states. [2019-11-28 00:26:15,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:26:15,073 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2019-11-28 00:26:15,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-28 00:26:15,074 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 21 [2019-11-28 00:26:15,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:26:15,074 INFO L225 Difference]: With dead ends: 20 [2019-11-28 00:26:15,075 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 00:26:15,078 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=122, Invalid=690, Unknown=0, NotChecked=0, Total=812 [2019-11-28 00:26:15,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 00:26:15,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 00:26:15,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 00:26:15,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 00:26:15,079 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2019-11-28 00:26:15,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:26:15,080 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 00:26:15,080 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-28 00:26:15,080 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 00:26:15,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 00:26:15,281 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 00:26:15,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 00:26:15,312 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 00:26:15,312 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 00:26:15,312 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 00:26:15,313 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2019-11-28 00:26:15,313 INFO L246 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2019-11-28 00:26:15,313 INFO L246 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2019-11-28 00:26:15,313 INFO L242 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (= ULTIMATE.start_main_~a~0 2) [2019-11-28 00:26:15,313 INFO L246 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2019-11-28 00:26:15,314 INFO L246 CegarLoopResult]: For program point L11(lines 11 18) no Hoare annotation was computed. [2019-11-28 00:26:15,314 INFO L246 CegarLoopResult]: For program point sumEXIT(lines 3 9) no Hoare annotation was computed. [2019-11-28 00:26:15,314 INFO L242 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (and (= sum_~m |sum_#in~m|) (= sum_~n |sum_#in~n|) (<= 1 sum_~n)) [2019-11-28 00:26:15,314 INFO L246 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2019-11-28 00:26:15,314 INFO L246 CegarLoopResult]: For program point L4(lines 4 8) no Hoare annotation was computed. [2019-11-28 00:26:15,314 INFO L246 CegarLoopResult]: For program point sumFINAL(lines 3 9) no Hoare annotation was computed. [2019-11-28 00:26:15,315 INFO L249 CegarLoopResult]: At program point sumENTRY(lines 3 9) the Hoare annotation is: true [2019-11-28 00:26:15,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:26:15 BoogieIcfgContainer [2019-11-28 00:26:15,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 00:26:15,325 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 00:26:15,325 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 00:26:15,326 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 00:26:15,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:26:12" (3/4) ... [2019-11-28 00:26:15,331 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 00:26:15,338 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2019-11-28 00:26:15,344 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 00:26:15,345 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 00:26:15,391 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 00:26:15,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 00:26:15,395 INFO L168 Benchmark]: Toolchain (without parser) took 3135.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 961.7 MB in the beginning and 937.4 MB in the end (delta: 24.3 MB). Peak memory consumption was 166.4 MB. Max. memory is 11.5 GB. [2019-11-28 00:26:15,396 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:26:15,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.69 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 00:26:15,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.55 ms. Allocated memory is still 1.0 GB. Free memory is still 951.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:26:15,397 INFO L168 Benchmark]: Boogie Preprocessor took 69.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 00:26:15,398 INFO L168 Benchmark]: RCFGBuilder took 210.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-28 00:26:15,398 INFO L168 Benchmark]: TraceAbstraction took 2458.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 937.4 MB in the end (delta: 183.1 MB). Peak memory consumption was 183.1 MB. Max. memory is 11.5 GB. [2019-11-28 00:26:15,399 INFO L168 Benchmark]: Witness Printer took 66.42 ms. Allocated memory is still 1.2 GB. Free memory is still 937.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:26:15,402 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 296.69 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.55 ms. Allocated memory is still 1.0 GB. Free memory is still 951.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 210.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2458.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 937.4 MB in the end (delta: 183.1 MB). Peak memory consumption was 183.1 MB. Max. memory is 11.5 GB. * Witness Printer took 66.42 ms. Allocated memory is still 1.2 GB. Free memory is still 937.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 37 SDslu, 95 SDs, 0 SdLazy, 209 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=2, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 14 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 6904 SizeOfPredicates, 11 NumberOfNonLiveVariables, 110 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 21/36 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...