./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/Addition01-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/Addition01-2.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c2780d79847d31970febd5cb46fb7efe933c8ec .............................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:45:30,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:45:30,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:45:30,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:45:30,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:45:30,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:45:30,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:45:30,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:45:30,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:45:30,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:45:30,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:45:30,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:45:30,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:45:30,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:45:30,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:45:30,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:45:30,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:45:30,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:45:30,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:45:30,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:45:30,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:45:30,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:45:30,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:45:30,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:45:30,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:45:30,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:45:30,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:45:30,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:45:30,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:45:30,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:45:30,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:45:30,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:45:30,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:45:30,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:45:30,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:45:30,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:45:30,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:45:30,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:45:30,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:45:30,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:45:30,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:45:30,379 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:45:30,412 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:45:30,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:45:30,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:45:30,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:45:30,414 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:45:30,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:45:30,415 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:45:30,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:45:30,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:45:30,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:45:30,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:45:30,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:45:30,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:45:30,417 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:45:30,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:45:30,417 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:45:30,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:45:30,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:45:30,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:45:30,418 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:45:30,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:45:30,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:45:30,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:45:30,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:45:30,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:45:30,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:45:30,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:45:30,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:45:30,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:45:30,421 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(reach_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 -> 0c2780d79847d31970febd5cb46fb7efe933c8ec [2020-10-20 01:45:30,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:45:30,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:45:30,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:45:30,691 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:45:30,692 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:45:30,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition01-2.c [2020-10-20 01:45:30,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7132553f/6605ce0ee32b49c1aefd3eca73b3a966/FLAG2f5d57713 [2020-10-20 01:45:31,305 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:45:31,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition01-2.c [2020-10-20 01:45:31,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7132553f/6605ce0ee32b49c1aefd3eca73b3a966/FLAG2f5d57713 [2020-10-20 01:45:31,690 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7132553f/6605ce0ee32b49c1aefd3eca73b3a966 [2020-10-20 01:45:31,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:45:31,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:45:31,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:45:31,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:45:31,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:45:31,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:45:31" (1/1) ... [2020-10-20 01:45:31,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277eedf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:31, skipping insertion in model container [2020-10-20 01:45:31,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:45:31" (1/1) ... [2020-10-20 01:45:31,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:45:31,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:45:31,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:45:31,941 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:45:31,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:45:32,001 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:45:32,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:32 WrapperNode [2020-10-20 01:45:32,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:45:32,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:45:32,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:45:32,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:45:32,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:32" (1/1) ... [2020-10-20 01:45:32,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:32" (1/1) ... [2020-10-20 01:45:32,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:45:32,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:45:32,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:45:32,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:45:32,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:32" (1/1) ... [2020-10-20 01:45:32,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:32" (1/1) ... [2020-10-20 01:45:32,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:32" (1/1) ... [2020-10-20 01:45:32,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:32" (1/1) ... [2020-10-20 01:45:32,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:32" (1/1) ... [2020-10-20 01:45:32,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:32" (1/1) ... [2020-10-20 01:45:32,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:32" (1/1) ... [2020-10-20 01:45:32,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:45:32,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:45:32,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:45:32,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:45:32,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:32" (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 [2020-10-20 01:45:32,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:45:32,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:45:32,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:45:32,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:45:32,150 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-10-20 01:45:32,150 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-10-20 01:45:32,383 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:45:32,384 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 01:45:32,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:45:32 BoogieIcfgContainer [2020-10-20 01:45:32,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:45:32,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:45:32,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:45:32,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:45:32,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:45:31" (1/3) ... [2020-10-20 01:45:32,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499f6e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:45:32, skipping insertion in model container [2020-10-20 01:45:32,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:32" (2/3) ... [2020-10-20 01:45:32,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499f6e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:45:32, skipping insertion in model container [2020-10-20 01:45:32,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:45:32" (3/3) ... [2020-10-20 01:45:32,394 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition01-2.c [2020-10-20 01:45:32,406 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:45:32,413 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 01:45:32,428 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 01:45:32,469 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:45:32,469 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:45:32,470 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:45:32,470 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:45:32,470 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:45:32,470 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:45:32,470 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:45:32,470 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:45:32,493 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-10-20 01:45:32,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 01:45:32,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:45:32,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:45:32,503 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:45:32,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:45:32,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1688089701, now seen corresponding path program 1 times [2020-10-20 01:45:32,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:45:32,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606240542] [2020-10-20 01:45:32,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:45:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:32,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-20 01:45:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:32,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:45:32,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606240542] [2020-10-20 01:45:32,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:45:32,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:45:32,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177333777] [2020-10-20 01:45:32,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:45:32,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:45:32,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:45:32,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:45:32,890 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 6 states. [2020-10-20 01:45:33,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:45:33,049 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2020-10-20 01:45:33,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:45:33,057 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-10-20 01:45:33,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:45:33,068 INFO L225 Difference]: With dead ends: 35 [2020-10-20 01:45:33,068 INFO L226 Difference]: Without dead ends: 21 [2020-10-20 01:45:33,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:45:33,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-20 01:45:33,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-20 01:45:33,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-20 01:45:33,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2020-10-20 01:45:33,119 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 12 [2020-10-20 01:45:33,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:45:33,120 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2020-10-20 01:45:33,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:45:33,120 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2020-10-20 01:45:33,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 01:45:33,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:45:33,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:45:33,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:45:33,123 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:45:33,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:45:33,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1474613634, now seen corresponding path program 1 times [2020-10-20 01:45:33,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:45:33,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921894925] [2020-10-20 01:45:33,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:45:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:33,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-20 01:45:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:45:33,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921894925] [2020-10-20 01:45:33,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:45:33,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:45:33,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042268247] [2020-10-20 01:45:33,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:45:33,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:45:33,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:45:33,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:45:33,232 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand 6 states. [2020-10-20 01:45:33,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:45:33,314 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2020-10-20 01:45:33,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:45:33,315 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-20 01:45:33,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:45:33,322 INFO L225 Difference]: With dead ends: 32 [2020-10-20 01:45:33,323 INFO L226 Difference]: Without dead ends: 18 [2020-10-20 01:45:33,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:45:33,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-20 01:45:33,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-20 01:45:33,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-20 01:45:33,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-10-20 01:45:33,330 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 14 [2020-10-20 01:45:33,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:45:33,331 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-10-20 01:45:33,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:45:33,331 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-10-20 01:45:33,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:45:33,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:45:33,332 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:45:33,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:45:33,333 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:45:33,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:45:33,333 INFO L82 PathProgramCache]: Analyzing trace with hash 723990695, now seen corresponding path program 1 times [2020-10-20 01:45:33,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:45:33,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889018756] [2020-10-20 01:45:33,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:45:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:33,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-20 01:45:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:33,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:33,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-20 01:45:33,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889018756] [2020-10-20 01:45:33,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311510801] [2020-10-20 01:45:33,540 INFO L95 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 [2020-10-20 01:45:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:33,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 27 conjunts are in the unsatisfiable core [2020-10-20 01:45:33,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:45:33,827 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 01:45:33,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:45:33,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 15 [2020-10-20 01:45:33,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768200654] [2020-10-20 01:45:33,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-20 01:45:33,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:45:33,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-20 01:45:33,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-10-20 01:45:33,836 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 15 states. [2020-10-20 01:45:34,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:45:34,061 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2020-10-20 01:45:34,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 01:45:34,062 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 19 [2020-10-20 01:45:34,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:45:34,062 INFO L225 Difference]: With dead ends: 23 [2020-10-20 01:45:34,062 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:45:34,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-10-20 01:45:34,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:45:34,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:45:34,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:45:34,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:45:34,065 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-20 01:45:34,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:45:34,065 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:45:34,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-20 01:45:34,066 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:45:34,066 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:45:34,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-20 01:45:34,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:45:34,326 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:45:34,326 INFO L274 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2020-10-20 01:45:34,326 INFO L274 CegarLoopResult]: For program point L36(lines 36 40) no Hoare annotation was computed. [2020-10-20 01:45:34,327 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 01:45:34,327 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:45:34,327 INFO L274 CegarLoopResult]: For program point L30(lines 30 34) no Hoare annotation was computed. [2020-10-20 01:45:34,327 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:45:34,327 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:45:34,327 INFO L277 CegarLoopResult]: At program point L28(lines 28 47) the Hoare annotation is: true [2020-10-20 01:45:34,328 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:45:34,328 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-20 01:45:34,328 INFO L270 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: (or (= ULTIMATE.start_main_~n~0 0) (< 0 ULTIMATE.start_main_~n~0)) [2020-10-20 01:45:34,328 INFO L274 CegarLoopResult]: For program point L41-1(line 41) no Hoare annotation was computed. [2020-10-20 01:45:34,328 INFO L270 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= |addition_#in~n| addition_~n) (= |addition_#in~m| addition_~m) (<= |addition_#in~n| 0) (not (= |addition_#in~n| 0))) [2020-10-20 01:45:34,329 INFO L274 CegarLoopResult]: For program point L22(lines 22 24) no Hoare annotation was computed. [2020-10-20 01:45:34,329 INFO L274 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-10-20 01:45:34,329 INFO L274 CegarLoopResult]: For program point additionFINAL(lines 15 25) no Hoare annotation was computed. [2020-10-20 01:45:34,329 INFO L270 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (and (= |addition_#in~n| addition_~n) (= |addition_#in~m| addition_~m) (<= 1 addition_~n)) [2020-10-20 01:45:34,329 INFO L274 CegarLoopResult]: For program point L19(lines 19 21) no Hoare annotation was computed. [2020-10-20 01:45:34,329 INFO L274 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-10-20 01:45:34,329 INFO L274 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-10-20 01:45:34,330 INFO L277 CegarLoopResult]: At program point additionENTRY(lines 15 25) the Hoare annotation is: true [2020-10-20 01:45:34,330 INFO L274 CegarLoopResult]: For program point additionEXIT(lines 15 25) no Hoare annotation was computed. [2020-10-20 01:45:34,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:45:34 BoogieIcfgContainer [2020-10-20 01:45:34,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:45:34,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:45:34,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:45:34,341 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:45:34,341 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:45:32" (3/4) ... [2020-10-20 01:45:34,345 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:45:34,352 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure addition [2020-10-20 01:45:34,357 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-20 01:45:34,358 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 01:45:34,358 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:45:34,358 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:45:34,415 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:45:34,418 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:45:34,421 INFO L168 Benchmark]: Toolchain (without parser) took 2725.11 ms. Allocated memory was 43.0 MB in the beginning and 55.1 MB in the end (delta: 12.1 MB). Free memory was 23.1 MB in the beginning and 24.3 MB in the end (delta: -1.2 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:45:34,423 INFO L168 Benchmark]: CDTParser took 0.91 ms. Allocated memory is still 32.5 MB. Free memory was 11.4 MB in the beginning and 11.4 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 01:45:34,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.58 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 22.3 MB in the beginning and 24.2 MB in the end (delta: -1.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:45:34,429 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.06 ms. Allocated memory is still 43.5 MB. Free memory was 24.2 MB in the beginning and 22.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:45:34,430 INFO L168 Benchmark]: Boogie Preprocessor took 29.87 ms. Allocated memory is still 43.5 MB. Free memory was 22.5 MB in the beginning and 21.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:45:34,431 INFO L168 Benchmark]: RCFGBuilder took 305.23 ms. Allocated memory was 43.5 MB in the beginning and 46.7 MB in the end (delta: 3.1 MB). Free memory was 21.4 MB in the beginning and 27.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 12.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:45:34,434 INFO L168 Benchmark]: TraceAbstraction took 1953.16 ms. Allocated memory was 46.7 MB in the beginning and 55.1 MB in the end (delta: 8.4 MB). Free memory was 27.4 MB in the beginning and 27.7 MB in the end (delta: -355.2 kB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:45:34,435 INFO L168 Benchmark]: Witness Printer took 77.84 ms. Allocated memory is still 55.1 MB. Free memory was 27.7 MB in the beginning and 24.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:45:34,440 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91 ms. Allocated memory is still 32.5 MB. Free memory was 11.4 MB in the beginning and 11.4 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 296.58 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 22.3 MB in the beginning and 24.2 MB in the end (delta: -1.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 47.06 ms. Allocated memory is still 43.5 MB. Free memory was 24.2 MB in the beginning and 22.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 29.87 ms. Allocated memory is still 43.5 MB. Free memory was 22.5 MB in the beginning and 21.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 305.23 ms. Allocated memory was 43.5 MB in the beginning and 46.7 MB in the end (delta: 3.1 MB). Free memory was 21.4 MB in the beginning and 27.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 12.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1953.16 ms. Allocated memory was 46.7 MB in the beginning and 55.1 MB in the end (delta: 8.4 MB). Free memory was 27.4 MB in the beginning and 27.7 MB in the end (delta: -355.2 kB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. * Witness Printer took 77.84 ms. Allocated memory is still 55.1 MB. Free memory was 27.7 MB in the beginning and 24.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 44 SDtfs, 42 SDslu, 117 SDs, 0 SdLazy, 214 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 11 PreInvPairs, 13 NumberOfFragments, 33 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 5169 SizeOfPredicates, 7 NumberOfNonLiveVariables, 85 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...