./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ssh-simplified/s3_srvr_10.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_13650129-460a-4f7b-963a-8dc57b4154da/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_13650129-460a-4f7b-963a-8dc57b4154da/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_13650129-460a-4f7b-963a-8dc57b4154da/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_13650129-460a-4f7b-963a-8dc57b4154da/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ssh-simplified/s3_srvr_10.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_13650129-460a-4f7b-963a-8dc57b4154da/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_13650129-460a-4f7b-963a-8dc57b4154da/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a0caa2080854c96635a201475da750aa6ffeecb .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:48,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:48,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:48,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:48,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:48,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:48,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:48,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:48,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:48,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:48,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:48,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:48,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:48,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:48,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:48,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:48,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:48,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:48,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:48,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:48,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:48,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:48,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:48,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:48,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:48,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:48,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:48,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:48,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:48,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:48,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:48,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:48,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:48,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:48,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:48,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:48,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:48,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:48,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:48,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:48,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:48,330 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_13650129-460a-4f7b-963a-8dc57b4154da/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:25:48,349 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:48,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:48,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:48,353 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:48,354 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:48,354 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:48,354 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:25:48,354 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:48,355 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:48,355 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:25:48,355 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:25:48,355 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:48,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:48,356 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:48,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:25:48,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:48,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:48,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:48,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:48,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:48,357 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:48,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:48,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:48,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:48,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:48,358 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:48,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:48,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:48,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:48,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:48,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:48,361 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:25:48,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:25:48,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:48,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:48,362 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_13650129-460a-4f7b-963a-8dc57b4154da/bin/utaipan 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 -> Taipan 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 -> 5a0caa2080854c96635a201475da750aa6ffeecb [2019-10-22 11:25:48,407 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:48,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:48,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:48,427 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:48,428 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:48,429 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_13650129-460a-4f7b-963a-8dc57b4154da/bin/utaipan/../../sv-benchmarks/c/ssh-simplified/s3_srvr_10.cil.c [2019-10-22 11:25:48,485 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_13650129-460a-4f7b-963a-8dc57b4154da/bin/utaipan/data/d7343572c/30da06f5cdc54a68bbbe4f77abb288ff/FLAG9f7e2f9c7 [2019-10-22 11:25:48,920 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:48,920 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_13650129-460a-4f7b-963a-8dc57b4154da/sv-benchmarks/c/ssh-simplified/s3_srvr_10.cil.c [2019-10-22 11:25:48,931 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_13650129-460a-4f7b-963a-8dc57b4154da/bin/utaipan/data/d7343572c/30da06f5cdc54a68bbbe4f77abb288ff/FLAG9f7e2f9c7 [2019-10-22 11:25:48,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_13650129-460a-4f7b-963a-8dc57b4154da/bin/utaipan/data/d7343572c/30da06f5cdc54a68bbbe4f77abb288ff [2019-10-22 11:25:48,950 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:48,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:48,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:48,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:48,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:48,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:48" (1/1) ... [2019-10-22 11:25:48,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@260e0eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:48, skipping insertion in model container [2019-10-22 11:25:48,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:48" (1/1) ... [2019-10-22 11:25:48,971 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:49,020 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:49,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:49,346 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:49,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:49,443 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:49,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49 WrapperNode [2019-10-22 11:25:49,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:49,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:49,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:49,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:49,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:49,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:49,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:49,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:49,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:49,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:49,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:49,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:49,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13650129-460a-4f7b-963a-8dc57b4154da/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:49,853 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-22 11:25:50,566 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2019-10-22 11:25:50,567 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2019-10-22 11:25:50,570 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:50,570 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 11:25:50,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:50 BoogieIcfgContainer [2019-10-22 11:25:50,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:50,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:50,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:50,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:50,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:48" (1/3) ... [2019-10-22 11:25:50,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ccec3ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:50, skipping insertion in model container [2019-10-22 11:25:50,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (2/3) ... [2019-10-22 11:25:50,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ccec3ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:50, skipping insertion in model container [2019-10-22 11:25:50,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:50" (3/3) ... [2019-10-22 11:25:50,581 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_10.cil.c [2019-10-22 11:25:50,590 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:50,598 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:25:50,606 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:25:50,631 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:50,631 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:50,631 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:50,632 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:50,632 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:50,632 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:50,632 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:50,632 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:50,650 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2019-10-22 11:25:50,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:25:50,657 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:50,658 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:50,660 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:50,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:50,665 INFO L82 PathProgramCache]: Analyzing trace with hash 2084821380, now seen corresponding path program 1 times [2019-10-22 11:25:50,675 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:50,675 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101273584] [2019-10-22 11:25:50,675 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:50,676 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:50,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:50,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:50,880 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101273584] [2019-10-22 11:25:50,881 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:50,881 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:50,882 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792532106] [2019-10-22 11:25:50,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:50,889 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:50,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:50,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:50,907 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 3 states. [2019-10-22 11:25:51,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:51,183 INFO L93 Difference]: Finished difference Result 311 states and 529 transitions. [2019-10-22 11:25:51,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:51,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-10-22 11:25:51,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:51,199 INFO L225 Difference]: With dead ends: 311 [2019-10-22 11:25:51,200 INFO L226 Difference]: Without dead ends: 152 [2019-10-22 11:25:51,203 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:51,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-10-22 11:25:51,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2019-10-22 11:25:51,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-10-22 11:25:51,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 235 transitions. [2019-10-22 11:25:51,257 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 235 transitions. Word has length 22 [2019-10-22 11:25:51,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:51,257 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 235 transitions. [2019-10-22 11:25:51,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:51,258 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 235 transitions. [2019-10-22 11:25:51,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 11:25:51,259 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:51,259 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:51,260 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:51,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:51,260 INFO L82 PathProgramCache]: Analyzing trace with hash -586952456, now seen corresponding path program 1 times [2019-10-22 11:25:51,260 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:51,261 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390955222] [2019-10-22 11:25:51,261 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,261 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:51,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:51,310 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390955222] [2019-10-22 11:25:51,310 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:51,310 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:51,310 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476607551] [2019-10-22 11:25:51,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:51,312 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:51,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:51,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:51,313 INFO L87 Difference]: Start difference. First operand 150 states and 235 transitions. Second operand 3 states. [2019-10-22 11:25:51,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:51,519 INFO L93 Difference]: Finished difference Result 313 states and 493 transitions. [2019-10-22 11:25:51,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:51,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-10-22 11:25:51,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:51,522 INFO L225 Difference]: With dead ends: 313 [2019-10-22 11:25:51,522 INFO L226 Difference]: Without dead ends: 170 [2019-10-22 11:25:51,526 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:51,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2019-10-22 11:25:51,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 168. [2019-10-22 11:25:51,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-10-22 11:25:51,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 266 transitions. [2019-10-22 11:25:51,545 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 266 transitions. Word has length 23 [2019-10-22 11:25:51,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:51,545 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 266 transitions. [2019-10-22 11:25:51,545 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:51,545 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 266 transitions. [2019-10-22 11:25:51,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 11:25:51,546 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:51,546 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:51,547 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:51,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:51,547 INFO L82 PathProgramCache]: Analyzing trace with hash 69813308, now seen corresponding path program 1 times [2019-10-22 11:25:51,547 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:51,548 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173710534] [2019-10-22 11:25:51,548 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,548 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:51,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:51,601 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173710534] [2019-10-22 11:25:51,601 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:51,601 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:51,601 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910842269] [2019-10-22 11:25:51,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:51,602 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:51,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:51,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:51,602 INFO L87 Difference]: Start difference. First operand 168 states and 266 transitions. Second operand 3 states. [2019-10-22 11:25:51,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:51,757 INFO L93 Difference]: Finished difference Result 330 states and 523 transitions. [2019-10-22 11:25:51,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:51,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-10-22 11:25:51,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:51,759 INFO L225 Difference]: With dead ends: 330 [2019-10-22 11:25:51,759 INFO L226 Difference]: Without dead ends: 169 [2019-10-22 11:25:51,760 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:51,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2019-10-22 11:25:51,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2019-10-22 11:25:51,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-10-22 11:25:51,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 267 transitions. [2019-10-22 11:25:51,776 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 267 transitions. Word has length 23 [2019-10-22 11:25:51,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:51,776 INFO L462 AbstractCegarLoop]: Abstraction has 169 states and 267 transitions. [2019-10-22 11:25:51,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:51,776 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 267 transitions. [2019-10-22 11:25:51,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:25:51,777 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:51,777 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:51,778 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:51,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:51,778 INFO L82 PathProgramCache]: Analyzing trace with hash 173828051, now seen corresponding path program 1 times [2019-10-22 11:25:51,778 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:51,779 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44347078] [2019-10-22 11:25:51,779 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,779 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:51,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:51,822 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44347078] [2019-10-22 11:25:51,823 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:51,823 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:51,823 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686667961] [2019-10-22 11:25:51,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:51,824 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:51,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:51,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:51,824 INFO L87 Difference]: Start difference. First operand 169 states and 267 transitions. Second operand 3 states. [2019-10-22 11:25:51,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:51,972 INFO L93 Difference]: Finished difference Result 340 states and 535 transitions. [2019-10-22 11:25:51,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:51,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 11:25:51,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:51,974 INFO L225 Difference]: With dead ends: 340 [2019-10-22 11:25:51,975 INFO L226 Difference]: Without dead ends: 178 [2019-10-22 11:25:51,976 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:51,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2019-10-22 11:25:51,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2019-10-22 11:25:51,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-10-22 11:25:51,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 276 transitions. [2019-10-22 11:25:51,989 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 276 transitions. Word has length 24 [2019-10-22 11:25:51,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:51,990 INFO L462 AbstractCegarLoop]: Abstraction has 178 states and 276 transitions. [2019-10-22 11:25:51,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:51,990 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 276 transitions. [2019-10-22 11:25:51,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:25:51,991 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:51,991 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:51,992 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:51,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:51,992 INFO L82 PathProgramCache]: Analyzing trace with hash 57533382, now seen corresponding path program 1 times [2019-10-22 11:25:51,992 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:51,992 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867692727] [2019-10-22 11:25:51,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:52,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:52,072 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867692727] [2019-10-22 11:25:52,072 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:52,072 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:52,072 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318485169] [2019-10-22 11:25:52,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:52,073 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:52,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:52,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:52,074 INFO L87 Difference]: Start difference. First operand 178 states and 276 transitions. Second operand 3 states. [2019-10-22 11:25:52,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:52,227 INFO L93 Difference]: Finished difference Result 359 states and 553 transitions. [2019-10-22 11:25:52,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:52,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-22 11:25:52,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:52,231 INFO L225 Difference]: With dead ends: 359 [2019-10-22 11:25:52,231 INFO L226 Difference]: Without dead ends: 188 [2019-10-22 11:25:52,232 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:52,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2019-10-22 11:25:52,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 178. [2019-10-22 11:25:52,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-10-22 11:25:52,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 274 transitions. [2019-10-22 11:25:52,257 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 274 transitions. Word has length 25 [2019-10-22 11:25:52,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:52,258 INFO L462 AbstractCegarLoop]: Abstraction has 178 states and 274 transitions. [2019-10-22 11:25:52,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:52,258 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 274 transitions. [2019-10-22 11:25:52,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:25:52,259 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:52,262 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:52,262 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:52,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:52,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1413165422, now seen corresponding path program 1 times [2019-10-22 11:25:52,263 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:52,263 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377811086] [2019-10-22 11:25:52,263 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:52,263 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:52,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:52,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:52,326 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377811086] [2019-10-22 11:25:52,326 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:52,326 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:52,326 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309861147] [2019-10-22 11:25:52,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:52,327 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:52,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:52,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:52,328 INFO L87 Difference]: Start difference. First operand 178 states and 274 transitions. Second operand 3 states. [2019-10-22 11:25:52,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:52,499 INFO L93 Difference]: Finished difference Result 359 states and 549 transitions. [2019-10-22 11:25:52,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:52,500 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-22 11:25:52,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:52,501 INFO L225 Difference]: With dead ends: 359 [2019-10-22 11:25:52,501 INFO L226 Difference]: Without dead ends: 188 [2019-10-22 11:25:52,502 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:52,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2019-10-22 11:25:52,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 178. [2019-10-22 11:25:52,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-10-22 11:25:52,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 272 transitions. [2019-10-22 11:25:52,518 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 272 transitions. Word has length 26 [2019-10-22 11:25:52,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:52,518 INFO L462 AbstractCegarLoop]: Abstraction has 178 states and 272 transitions. [2019-10-22 11:25:52,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:52,518 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 272 transitions. [2019-10-22 11:25:52,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:25:52,519 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:52,524 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:52,525 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:52,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:52,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1880242814, now seen corresponding path program 1 times [2019-10-22 11:25:52,525 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:52,526 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050262866] [2019-10-22 11:25:52,526 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:52,526 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:52,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:25:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:25:52,632 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:25:52,632 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:25:52,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:25:52 BoogieIcfgContainer [2019-10-22 11:25:52,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:25:52,689 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:25:52,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:25:52,690 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:25:52,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:50" (3/4) ... [2019-10-22 11:25:52,692 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:25:52,773 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_13650129-460a-4f7b-963a-8dc57b4154da/bin/utaipan/witness.graphml [2019-10-22 11:25:52,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:25:52,783 INFO L168 Benchmark]: Toolchain (without parser) took 3823.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:52,784 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:52,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:52,787 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:52,788 INFO L168 Benchmark]: Boogie Preprocessor took 81.60 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:52,788 INFO L168 Benchmark]: RCFGBuilder took 980.08 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:52,788 INFO L168 Benchmark]: TraceAbstraction took 2117.04 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: -49.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:52,788 INFO L168 Benchmark]: Witness Printer took 84.18 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:52,790 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 490.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 81.60 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 980.08 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2117.04 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: -49.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 84.18 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 629]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L635] int s ; [L636] int tmp ; [L640] s = 8464 [L12] int s__info_callback = __VERIFIER_nondet_int() ; [L13] int s__in_handshake = __VERIFIER_nondet_int() ; [L14] int s__state ; [L15] int s__new_session ; [L16] int s__server ; [L17] int s__version = __VERIFIER_nondet_int() ; [L18] int s__type ; [L19] int s__init_num ; [L20] int s__hit = __VERIFIER_nondet_int() ; [L21] int s__rwstate ; [L22] int s__init_buf___0 = 1; [L23] int s__debug = __VERIFIER_nondet_int() ; [L24] int s__shutdown ; [L25] int s__cert = __VERIFIER_nondet_int() ; [L26] int s__options = __VERIFIER_nondet_int() ; [L27] int s__verify_mode = __VERIFIER_nondet_int() ; [L28] int s__session__peer = __VERIFIER_nondet_int() ; [L29] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L30] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L33] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L34] int s__s3__tmp__cert_request ; [L35] int s__s3__tmp__reuse_message ; [L36] int s__s3__tmp__use_rsa_tmp ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int buf = __VERIFIER_nondet_int() ; [L43] unsigned long l ; [L44] unsigned long Time ; [L45] unsigned long tmp = __VERIFIER_nondet_long() ; [L46] int cb ; [L47] long num1 ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int got_new_session ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 ; [L56] int tmp___4 ; [L57] int tmp___5 ; [L58] int tmp___6 ; [L59] int tmp___7 ; [L60] long tmp___8 = __VERIFIER_nondet_long() ; [L61] int tmp___9 ; [L62] int tmp___10 ; [L63] int blastFlag ; [L64] int __cil_tmp55 ; [L65] unsigned long __cil_tmp56 ; [L66] unsigned long __cil_tmp57 ; [L67] unsigned long __cil_tmp58 ; [L68] unsigned long __cil_tmp59 ; [L69] int __cil_tmp60 ; [L70] unsigned long __cil_tmp61 ; [L73] s__s3__tmp__new_cipher__algorithms = 0 [L74] __cil_tmp56 = 0 [L75] __cil_tmp57 = 0 [L76] __cil_tmp58 = 0 [L77] __cil_tmp59 = 0 [L78] __cil_tmp60 = 0 [L79] __cil_tmp61 = 0 [L80] s__s3__tmp__reuse_message = 0 [L81] s__state = initial_state [L82] blastFlag = 0 [L83] Time = tmp [L84] cb = 0 [L85] ret = -1 [L86] skip = 0 [L87] got_new_session = 0 [L88] COND TRUE s__info_callback != 0 [L89] cb = s__info_callback [L95] s__in_handshake ++ [L96] COND FALSE !(tmp___1 + 12288) [L101] COND FALSE !(s__cert == 0) [L105] COND TRUE 1 [L107] state = s__state [L108] COND FALSE !(s__state == 12292) [L111] COND FALSE !(s__state == 16384) [L114] COND FALSE !(s__state == 8192) [L117] COND FALSE !(s__state == 24576) [L120] COND FALSE !(s__state == 8195) [L123] COND FALSE !(s__state == 8480) [L126] COND FALSE !(s__state == 8481) [L129] COND FALSE !(s__state == 8482) [L132] COND TRUE s__state == 8464 [L276] s__shutdown = 0 [L277] ret = __VERIFIER_nondet_int() [L278] COND TRUE blastFlag == 0 [L279] blastFlag = 1 [L281] COND FALSE !(ret <= 0) [L284] got_new_session = 1 [L285] s__state = 8496 [L286] s__init_num = 0 [L592] COND TRUE ! s__s3__tmp__reuse_message [L593] COND TRUE ! skip [L594] COND TRUE state == 8464 [L595] COND TRUE s__state == 8496 [L596] COND TRUE cb != 0 [L597] COND TRUE s__info_callback != 0 [L629] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 146 locations, 1 error locations. Result: UNSAFE, OverallTime: 2.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 840 SDtfs, 1058 SDslu, 120 SDs, 0 SdLazy, 496 SolverSat, 176 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 7411 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...