./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 678e0110 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 0.1.24-678e011 [2019-11-19 21:23:22,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:23:22,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:23:22,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:23:22,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:23:22,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:23:22,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:23:22,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:23:22,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:23:22,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:23:22,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:23:22,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:23:22,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:23:22,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:23:22,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:23:22,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:23:22,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:23:22,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:23:22,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:23:22,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:23:22,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:23:22,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:23:22,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:23:22,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:23:22,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:23:22,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:23:22,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:23:22,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:23:22,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:23:22,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:23:22,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:23:22,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:23:22,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:23:22,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:23:22,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:23:22,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:23:22,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:23:22,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:23:22,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:23:22,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:23:22,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:23:22,887 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 21:23:22,911 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:23:22,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:23:22,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:23:22,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:23:22,914 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:23:22,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:23:22,915 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:23:22,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 21:23:22,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:23:22,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:23:22,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:23:22,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:23:22,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:23:22,917 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:23:22,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:23:22,918 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:23:22,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:23:22,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:23:22,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:23:22,919 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:23:22,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:23:22,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:23:22,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:23:22,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:23:22,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:23:22,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 21:23:22,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 21:23:22,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:23:22,921 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 [2019-11-19 21:23:23,230 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:23:23,245 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:23:23,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:23:23,250 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:23:23,251 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:23:23,252 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/sum_2x3-2.c [2019-11-19 21:23:23,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b785ae654/3166f89d65a54a15b151117ba6ad0a9c/FLAG8136cfa16 [2019-11-19 21:23:23,738 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:23:23,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_2x3-2.c [2019-11-19 21:23:23,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b785ae654/3166f89d65a54a15b151117ba6ad0a9c/FLAG8136cfa16 [2019-11-19 21:23:24,150 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b785ae654/3166f89d65a54a15b151117ba6ad0a9c [2019-11-19 21:23:24,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:23:24,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:23:24,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:23:24,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:23:24,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:23:24,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:23:24" (1/1) ... [2019-11-19 21:23:24,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@209796ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:24, skipping insertion in model container [2019-11-19 21:23:24,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:23:24" (1/1) ... [2019-11-19 21:23:24,171 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:23:24,186 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:23:24,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:23:24,366 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:23:24,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:23:24,390 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:23:24,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:24 WrapperNode [2019-11-19 21:23:24,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:23:24,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:23:24,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:23:24,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:23:24,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:24" (1/1) ... [2019-11-19 21:23:24,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:24" (1/1) ... [2019-11-19 21:23:24,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:23:24,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:23:24,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:23:24,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:23:24,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:24" (1/1) ... [2019-11-19 21:23:24,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:24" (1/1) ... [2019-11-19 21:23:24,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:24" (1/1) ... [2019-11-19 21:23:24,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:24" (1/1) ... [2019-11-19 21:23:24,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:24" (1/1) ... [2019-11-19 21:23:24,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:24" (1/1) ... [2019-11-19 21:23:24,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:24" (1/1) ... [2019-11-19 21:23:24,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:23:24,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:23:24,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:23:24,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:23:24,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:24" (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 [2019-11-19 21:23:24,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:23:24,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:23:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2019-11-19 21:23:24,549 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2019-11-19 21:23:24,700 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:23:24,700 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-19 21:23:24,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:23:24 BoogieIcfgContainer [2019-11-19 21:23:24,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:23:24,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:23:24,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:23:24,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:23:24,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:23:24" (1/3) ... [2019-11-19 21:23:24,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454c419b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:23:24, skipping insertion in model container [2019-11-19 21:23:24,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:24" (2/3) ... [2019-11-19 21:23:24,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454c419b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:23:24, skipping insertion in model container [2019-11-19 21:23:24,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:23:24" (3/3) ... [2019-11-19 21:23:24,708 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_2x3-2.c [2019-11-19 21:23:24,715 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:23:24,720 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 21:23:24,730 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 21:23:24,753 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:23:24,753 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:23:24,753 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:23:24,753 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:23:24,753 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:23:24,754 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:23:24,754 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:23:24,754 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:23:24,769 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-19 21:23:24,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-19 21:23:24,773 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:23:24,774 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:23:24,774 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:23:24,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:23:24,779 INFO L82 PathProgramCache]: Analyzing trace with hash 389977641, now seen corresponding path program 1 times [2019-11-19 21:23:24,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:23:24,786 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304435179] [2019-11-19 21:23:24,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:23:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:23:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:23:25,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:23:25,071 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304435179] [2019-11-19 21:23:25,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:23:25,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 21:23:25,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114805169] [2019-11-19 21:23:25,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 21:23:25,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:23:25,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 21:23:25,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 21:23:25,096 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 5 states. [2019-11-19 21:23:25,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:23:25,192 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2019-11-19 21:23:25,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 21:23:25,197 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-19 21:23:25,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:23:25,212 INFO L225 Difference]: With dead ends: 24 [2019-11-19 21:23:25,213 INFO L226 Difference]: Without dead ends: 14 [2019-11-19 21:23:25,225 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-19 21:23:25,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-19 21:23:25,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-19 21:23:25,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-19 21:23:25,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-11-19 21:23:25,288 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 9 [2019-11-19 21:23:25,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:23:25,289 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-11-19 21:23:25,289 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 21:23:25,290 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-11-19 21:23:25,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-19 21:23:25,293 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:23:25,293 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:23:25,294 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:23:25,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:23:25,294 INFO L82 PathProgramCache]: Analyzing trace with hash -881029229, now seen corresponding path program 1 times [2019-11-19 21:23:25,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:23:25,296 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021630158] [2019-11-19 21:23:25,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:23:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:23:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:23:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:23:25,474 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 21:23:25,475 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021630158] [2019-11-19 21:23:25,476 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834268123] [2019-11-19 21:23:25,476 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 [2019-11-19 21:23:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:23:25,515 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 21:23:25,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:23:25,572 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 21:23:25,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 21:23:25,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-11-19 21:23:25,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700735305] [2019-11-19 21:23:25,575 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-19 21:23:25,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:23:25,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 21:23:25,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-19 21:23:25,576 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 7 states. [2019-11-19 21:23:25,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:23:25,664 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-11-19 21:23:25,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 21:23:25,665 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-11-19 21:23:25,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:23:25,666 INFO L225 Difference]: With dead ends: 21 [2019-11-19 21:23:25,667 INFO L226 Difference]: Without dead ends: 17 [2019-11-19 21:23:25,668 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 [2019-11-19 21:23:25,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-19 21:23:25,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-19 21:23:25,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-19 21:23:25,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-11-19 21:23:25,678 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 15 [2019-11-19 21:23:25,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:23:25,678 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-11-19 21:23:25,678 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-19 21:23:25,679 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-11-19 21:23:25,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-19 21:23:25,682 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:23:25,682 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:23:25,887 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 21:23:25,888 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:23:25,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:23:25,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1824240471, now seen corresponding path program 2 times [2019-11-19 21:23:25,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:23:25,890 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729061690] [2019-11-19 21:23:25,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:23:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:23:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:23:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:23:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:23:26,300 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-19 21:23:26,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729061690] [2019-11-19 21:23:26,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711333239] [2019-11-19 21:23:26,303 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 [2019-11-19 21:23:26,343 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-19 21:23:26,343 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-19 21:23:26,345 WARN L253 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 33 conjunts are in the unsatisfiable core [2019-11-19 21:23:26,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:23:26,648 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-19 21:23:26,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 21:23:26,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 22 [2019-11-19 21:23:26,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084696238] [2019-11-19 21:23:26,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-19 21:23:26,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:23:26,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-19 21:23:26,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2019-11-19 21:23:26,657 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 22 states. [2019-11-19 21:23:27,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:23:27,080 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2019-11-19 21:23:27,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-19 21:23:27,081 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 21 [2019-11-19 21:23:27,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:23:27,082 INFO L225 Difference]: With dead ends: 20 [2019-11-19 21:23:27,082 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 21:23:27,083 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 [2019-11-19 21:23:27,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 21:23:27,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 21:23:27,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 21:23:27,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 21:23:27,084 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2019-11-19 21:23:27,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:23:27,085 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 21:23:27,085 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-19 21:23:27,085 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 21:23:27,085 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 21:23:27,286 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 21:23:27,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 21:23:27,321 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 21:23:27,321 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 21:23:27,321 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 21:23:27,321 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2019-11-19 21:23:27,321 INFO L444 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2019-11-19 21:23:27,322 INFO L444 ceAbstractionStarter]: For program point L15(lines 15 17) no Hoare annotation was computed. [2019-11-19 21:23:27,322 INFO L440 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (= ULTIMATE.start_main_~a~0 2) [2019-11-19 21:23:27,322 INFO L444 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2019-11-19 21:23:27,322 INFO L444 ceAbstractionStarter]: For program point L11(lines 11 18) no Hoare annotation was computed. [2019-11-19 21:23:27,322 INFO L444 ceAbstractionStarter]: For program point sumEXIT(lines 3 9) no Hoare annotation was computed. [2019-11-19 21:23:27,323 INFO L440 ceAbstractionStarter]: At program point L7(line 7) the Hoare annotation is: (and (= sum_~m |sum_#in~m|) (= sum_~n |sum_#in~n|) (<= 1 sum_~n)) [2019-11-19 21:23:27,323 INFO L444 ceAbstractionStarter]: For program point L7-1(line 7) no Hoare annotation was computed. [2019-11-19 21:23:27,323 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 8) no Hoare annotation was computed. [2019-11-19 21:23:27,324 INFO L444 ceAbstractionStarter]: For program point sumFINAL(lines 3 9) no Hoare annotation was computed. [2019-11-19 21:23:27,324 INFO L447 ceAbstractionStarter]: At program point sumENTRY(lines 3 9) the Hoare annotation is: true [2019-11-19 21:23:27,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:23:27 BoogieIcfgContainer [2019-11-19 21:23:27,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:23:27,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:23:27,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:23:27,332 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:23:27,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:23:24" (3/4) ... [2019-11-19 21:23:27,338 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 21:23:27,345 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2019-11-19 21:23:27,352 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-19 21:23:27,352 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 21:23:27,397 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 21:23:27,397 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:23:27,400 INFO L168 Benchmark]: Toolchain (without parser) took 3244.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 957.7 MB in the beginning and 940.5 MB in the end (delta: 17.1 MB). Peak memory consumption was 161.3 MB. Max. memory is 11.5 GB. [2019-11-19 21:23:27,400 INFO L168 Benchmark]: CDTParser took 0.25 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. [2019-11-19 21:23:27,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.87 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:23:27,401 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.07 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:23:27,402 INFO L168 Benchmark]: Boogie Preprocessor took 78.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-19 21:23:27,403 INFO L168 Benchmark]: RCFGBuilder took 204.55 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-19 21:23:27,404 INFO L168 Benchmark]: TraceAbstraction took 2628.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 940.5 MB in the end (delta: 182.6 MB). Peak memory consumption was 182.6 MB. Max. memory is 11.5 GB. [2019-11-19 21:23:27,404 INFO L168 Benchmark]: Witness Printer took 65.81 ms. Allocated memory is still 1.2 GB. Free memory is still 940.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:23:27,408 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 234.87 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 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 27.07 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 204.55 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2628.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 940.5 MB in the end (delta: 182.6 MB). Peak memory consumption was 182.6 MB. Max. memory is 11.5 GB. * Witness Printer took 65.81 ms. Allocated memory is still 1.2 GB. Free memory is still 940.5 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: 2.5s, 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, 0.1s SatisfiabilityAnalysisTime, 1.0s 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...