./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/bhmr2007.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-lit/bhmr2007.i -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 cc52fae450c71cb08003ff68124573964734a280 ....................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 00:02:22,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 00:02:22,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 00:02:22,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 00:02:22,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 00:02:22,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 00:02:22,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 00:02:22,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 00:02:22,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 00:02:22,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 00:02:22,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 00:02:22,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 00:02:22,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 00:02:22,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 00:02:22,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 00:02:22,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 00:02:22,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 00:02:22,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 00:02:22,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 00:02:22,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 00:02:22,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 00:02:22,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 00:02:22,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 00:02:22,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 00:02:22,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 00:02:22,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 00:02:22,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 00:02:22,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 00:02:22,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 00:02:22,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 00:02:22,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 00:02:22,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 00:02:22,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 00:02:22,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 00:02:22,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 00:02:22,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 00:02:22,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 00:02:22,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 00:02:22,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 00:02:22,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 00:02:22,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 00:02:22,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 00:02:22,461 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 00:02:22,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 00:02:22,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 00:02:22,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 00:02:22,464 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 00:02:22,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 00:02:22,464 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 00:02:22,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 00:02:22,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 00:02:22,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 00:02:22,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 00:02:22,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 00:02:22,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 00:02:22,466 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 00:02:22,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 00:02:22,467 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 00:02:22,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 00:02:22,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 00:02:22,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 00:02:22,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 00:02:22,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 00:02:22,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:02:22,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 00:02:22,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 00:02:22,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 00:02:22,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 00:02:22,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 00:02:22,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 00:02:22,472 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 -> cc52fae450c71cb08003ff68124573964734a280 [2019-11-28 00:02:22,766 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 00:02:22,785 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 00:02:22,788 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 00:02:22,789 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 00:02:22,790 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 00:02:22,790 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/bhmr2007.i [2019-11-28 00:02:22,854 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1bf138df/26ac622a995249ab92f002c6c74d992c/FLAGe4339ef5d [2019-11-28 00:02:23,254 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 00:02:23,255 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/bhmr2007.i [2019-11-28 00:02:23,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1bf138df/26ac622a995249ab92f002c6c74d992c/FLAGe4339ef5d [2019-11-28 00:02:23,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1bf138df/26ac622a995249ab92f002c6c74d992c [2019-11-28 00:02:23,684 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 00:02:23,685 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 00:02:23,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 00:02:23,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 00:02:23,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 00:02:23,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:02:23" (1/1) ... [2019-11-28 00:02:23,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ff623f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:02:23, skipping insertion in model container [2019-11-28 00:02:23,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:02:23" (1/1) ... [2019-11-28 00:02:23,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 00:02:23,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 00:02:23,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:02:23,893 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 00:02:23,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:02:23,927 INFO L208 MainTranslator]: Completed translation [2019-11-28 00:02:23,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:02:23 WrapperNode [2019-11-28 00:02:23,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 00:02:23,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 00:02:23,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 00:02:23,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 00:02:23,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:02:23" (1/1) ... [2019-11-28 00:02:23,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:02:23" (1/1) ... [2019-11-28 00:02:24,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 00:02:24,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 00:02:24,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 00:02:24,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 00:02:24,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:02:23" (1/1) ... [2019-11-28 00:02:24,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:02:23" (1/1) ... [2019-11-28 00:02:24,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:02:23" (1/1) ... [2019-11-28 00:02:24,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:02:23" (1/1) ... [2019-11-28 00:02:24,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:02:23" (1/1) ... [2019-11-28 00:02:24,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:02:23" (1/1) ... [2019-11-28 00:02:24,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:02:23" (1/1) ... [2019-11-28 00:02:24,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 00:02:24,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 00:02:24,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 00:02:24,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 00:02:24,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:02:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:02:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 00:02:24,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 00:02:24,263 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 00:02:24,264 INFO L297 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 00:02:24,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:02:24 BoogieIcfgContainer [2019-11-28 00:02:24,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 00:02:24,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 00:02:24,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 00:02:24,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 00:02:24,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:02:23" (1/3) ... [2019-11-28 00:02:24,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7368d801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:02:24, skipping insertion in model container [2019-11-28 00:02:24,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:02:23" (2/3) ... [2019-11-28 00:02:24,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7368d801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:02:24, skipping insertion in model container [2019-11-28 00:02:24,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:02:24" (3/3) ... [2019-11-28 00:02:24,273 INFO L109 eAbstractionObserver]: Analyzing ICFG bhmr2007.i [2019-11-28 00:02:24,284 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 00:02:24,313 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 00:02:24,344 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 00:02:24,369 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 00:02:24,369 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 00:02:24,369 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 00:02:24,369 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 00:02:24,369 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 00:02:24,370 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 00:02:24,370 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 00:02:24,370 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 00:02:24,384 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-28 00:02:24,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-28 00:02:24,391 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:02:24,392 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-28 00:02:24,392 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:02:24,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:02:24,400 INFO L82 PathProgramCache]: Analyzing trace with hash 922414858, now seen corresponding path program 1 times [2019-11-28 00:02:24,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:02:24,408 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669991641] [2019-11-28 00:02:24,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:02:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:02:24,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:02:24,508 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669991641] [2019-11-28 00:02:24,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:02:24,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 00:02:24,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991472308] [2019-11-28 00:02:24,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 00:02:24,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:02:24,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 00:02:24,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 00:02:24,526 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2019-11-28 00:02:24,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:02:24,539 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-11-28 00:02:24,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 00:02:24,541 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-11-28 00:02:24,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:02:24,550 INFO L225 Difference]: With dead ends: 21 [2019-11-28 00:02:24,550 INFO L226 Difference]: Without dead ends: 9 [2019-11-28 00:02:24,552 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 00:02:24,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-28 00:02:24,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-28 00:02:24,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-28 00:02:24,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2019-11-28 00:02:24,579 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2019-11-28 00:02:24,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:02:24,580 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2019-11-28 00:02:24,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 00:02:24,580 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-11-28 00:02:24,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-28 00:02:24,581 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:02:24,581 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-28 00:02:24,581 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:02:24,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:02:24,582 INFO L82 PathProgramCache]: Analyzing trace with hash 922087157, now seen corresponding path program 1 times [2019-11-28 00:02:24,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:02:24,582 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97553917] [2019-11-28 00:02:24,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:02:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:02:24,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:02:24,816 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97553917] [2019-11-28 00:02:24,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:02:24,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 00:02:24,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822863093] [2019-11-28 00:02:24,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 00:02:24,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:02:24,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 00:02:24,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-28 00:02:24,820 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 6 states. [2019-11-28 00:02:24,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:02:24,898 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-11-28 00:02:24,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 00:02:24,899 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-11-28 00:02:24,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:02:24,901 INFO L225 Difference]: With dead ends: 15 [2019-11-28 00:02:24,902 INFO L226 Difference]: Without dead ends: 11 [2019-11-28 00:02:24,903 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-28 00:02:24,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-28 00:02:24,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-11-28 00:02:24,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-28 00:02:24,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-11-28 00:02:24,909 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2019-11-28 00:02:24,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:02:24,909 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-11-28 00:02:24,909 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 00:02:24,910 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-11-28 00:02:24,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 00:02:24,910 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:02:24,911 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:02:24,911 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:02:24,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:02:24,911 INFO L82 PathProgramCache]: Analyzing trace with hash 826668156, now seen corresponding path program 1 times [2019-11-28 00:02:24,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:02:24,912 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146484992] [2019-11-28 00:02:24,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:02:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:02:25,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:02:25,146 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146484992] [2019-11-28 00:02:25,146 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508240519] [2019-11-28 00:02:25,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 00:02:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:02:25,184 WARN L253 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-28 00:02:25,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 00:02:25,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 00:02:25,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:02:25,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 00:02:25,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2019-11-28 00:02:25,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144426814] [2019-11-28 00:02:25,369 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-28 00:02:25,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:02:25,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-28 00:02:25,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2019-11-28 00:02:25,371 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 14 states. [2019-11-28 00:02:25,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:02:25,649 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2019-11-28 00:02:25,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-28 00:02:25,649 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 9 [2019-11-28 00:02:25,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:02:25,650 INFO L225 Difference]: With dead ends: 23 [2019-11-28 00:02:25,651 INFO L226 Difference]: Without dead ends: 17 [2019-11-28 00:02:25,652 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2019-11-28 00:02:25,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-28 00:02:25,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-28 00:02:25,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-28 00:02:25,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-11-28 00:02:25,657 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 9 [2019-11-28 00:02:25,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:02:25,657 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-28 00:02:25,658 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-28 00:02:25,658 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-11-28 00:02:25,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 00:02:25,659 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:02:25,659 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:02:25,861 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 00:02:25,862 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:02:25,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:02:25,862 INFO L82 PathProgramCache]: Analyzing trace with hash -2147349609, now seen corresponding path program 1 times [2019-11-28 00:02:25,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:02:25,863 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697836197] [2019-11-28 00:02:25,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:02:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:02:26,084 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-28 00:02:26,085 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697836197] [2019-11-28 00:02:26,085 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944723216] [2019-11-28 00:02:26,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 00:02:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:02:26,110 WARN L253 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-28 00:02:26,111 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 00:02:26,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 00:02:26,314 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:02:26,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 00:02:26,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2019-11-28 00:02:26,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266674761] [2019-11-28 00:02:26,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-28 00:02:26,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:02:26,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-28 00:02:26,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2019-11-28 00:02:26,321 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 17 states. [2019-11-28 00:02:26,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:02:26,833 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2019-11-28 00:02:26,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-28 00:02:26,834 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 12 [2019-11-28 00:02:26,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:02:26,835 INFO L225 Difference]: With dead ends: 24 [2019-11-28 00:02:26,835 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 00:02:26,836 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=156, Invalid=714, Unknown=0, NotChecked=0, Total=870 [2019-11-28 00:02:26,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 00:02:26,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 00:02:26,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 00:02:26,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 00:02:26,837 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-11-28 00:02:26,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:02:26,838 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 00:02:26,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-28 00:02:26,839 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 00:02:26,839 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 00:02:27,045 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 00:02:27,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 00:02:27,106 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 00:02:27,106 INFO L249 CegarLoopResult]: At program point L25(lines 10 26) the Hoare annotation is: true [2019-11-28 00:02:27,106 INFO L246 CegarLoopResult]: For program point L15(lines 15 21) no Hoare annotation was computed. [2019-11-28 00:02:27,106 INFO L246 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2019-11-28 00:02:27,107 INFO L246 CegarLoopResult]: For program point L15-2(lines 15 21) no Hoare annotation was computed. [2019-11-28 00:02:27,107 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-28 00:02:27,107 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 00:02:27,107 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 00:02:27,107 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 00:02:27,107 INFO L242 CegarLoopResult]: At program point L14-2(lines 14 23) the Hoare annotation is: (let ((.cse1 (* 3 ULTIMATE.start_main_~i~0)) (.cse0 (+ ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0))) (and (< .cse0 (+ (* 3 ULTIMATE.start_main_~n~0) 1)) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2019-11-28 00:02:27,108 INFO L246 CegarLoopResult]: For program point L14-3(lines 14 23) no Hoare annotation was computed. [2019-11-28 00:02:27,108 INFO L246 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-28 00:02:27,108 INFO L249 CegarLoopResult]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-11-28 00:02:27,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:02:27 BoogieIcfgContainer [2019-11-28 00:02:27,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 00:02:27,125 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 00:02:27,125 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 00:02:27,125 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 00:02:27,126 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:02:24" (3/4) ... [2019-11-28 00:02:27,129 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 00:02:27,140 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-28 00:02:27,140 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 00:02:27,188 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 00:02:27,189 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 00:02:27,191 INFO L168 Benchmark]: Toolchain (without parser) took 3505.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 953.7 MB in the beginning and 878.1 MB in the end (delta: 75.5 MB). Peak memory consumption was 221.8 MB. Max. memory is 11.5 GB. [2019-11-28 00:02:27,192 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:02:27,192 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.05 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 942.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 00:02:27,193 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 942.9 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 00:02:27,194 INFO L168 Benchmark]: Boogie Preprocessor took 20.32 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 00:02:27,194 INFO L168 Benchmark]: RCFGBuilder took 230.98 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: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2019-11-28 00:02:27,195 INFO L168 Benchmark]: TraceAbstraction took 2858.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 878.1 MB in the end (delta: 247.3 MB). Peak memory consumption was 247.3 MB. Max. memory is 11.5 GB. [2019-11-28 00:02:27,196 INFO L168 Benchmark]: Witness Printer took 63.57 ms. Allocated memory is still 1.2 GB. Free memory is still 878.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:02:27,200 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 242.05 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 942.9 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 85.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 942.9 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.32 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 230.98 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: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2858.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 878.1 MB in the end (delta: 247.3 MB). Peak memory consumption was 247.3 MB. Max. memory is 11.5 GB. * Witness Printer took 63.57 ms. Allocated memory is still 1.2 GB. Free memory is still 878.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (a + b < 3 * n + 1 && a + b <= 3 * i) && 3 * i <= a + b - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 40 SDslu, 19 SDs, 0 SdLazy, 233 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=3, 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 26 HoareAnnotationTreeSize, 3 FomulaSimplifications, 75 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 101 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 4988 SizeOfPredicates, 12 NumberOfNonLiveVariables, 75 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 1/12 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...