./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ssh-simplified/s3_srvr_13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ssh-simplified/s3_srvr_13.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/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 a4ba7a359047c30b647e3fae146392c1b2eaa08f .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-6b5699a [2019-11-26 02:06:24,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:06:24,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:06:24,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:06:24,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:06:24,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:06:24,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:06:24,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:06:24,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:06:24,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:06:24,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:06:24,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:06:24,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:06:24,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:06:24,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:06:24,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:06:24,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:06:24,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:06:24,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:06:24,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:06:24,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:06:24,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:06:24,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:06:24,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:06:24,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:06:24,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:06:24,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:06:24,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:06:24,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:06:24,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:06:24,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:06:24,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:06:24,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:06:24,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:06:24,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:06:24,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:06:24,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:06:24,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:06:24,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:06:24,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:06:24,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:06:24,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:06:24,478 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:06:24,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:06:24,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:06:24,479 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:06:24,479 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:06:24,479 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:06:24,480 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:06:24,480 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:06:24,480 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:06:24,480 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:06:24,481 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:06:24,481 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:06:24,481 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:06:24,481 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:06:24,481 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:06:24,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:06:24,482 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:06:24,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:06:24,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:06:24,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:06:24,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:06:24,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:06:24,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:06:24,484 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:06:24,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:06:24,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:06:24,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:06:24,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:06:24,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:06:24,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:06:24,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:06:24,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:06:24,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:06:24,486 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:06:24,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:06:24,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:06:24,487 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:06:24,487 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/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/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 -> a4ba7a359047c30b647e3fae146392c1b2eaa08f [2019-11-26 02:06:24,619 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:06:24,629 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:06:24,631 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:06:24,632 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:06:24,632 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:06:24,633 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/bin/utaipan/../../sv-benchmarks/c/ssh-simplified/s3_srvr_13.cil.c [2019-11-26 02:06:24,685 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/bin/utaipan/data/848406c22/6c0fcc34ff914f33b796c7570f6bd89d/FLAG034f145c9 [2019-11-26 02:06:25,054 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:06:25,070 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/sv-benchmarks/c/ssh-simplified/s3_srvr_13.cil.c [2019-11-26 02:06:25,086 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/bin/utaipan/data/848406c22/6c0fcc34ff914f33b796c7570f6bd89d/FLAG034f145c9 [2019-11-26 02:06:25,397 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/bin/utaipan/data/848406c22/6c0fcc34ff914f33b796c7570f6bd89d [2019-11-26 02:06:25,399 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:06:25,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:06:25,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:06:25,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:06:25,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:06:25,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@289be9ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25, skipping insertion in model container [2019-11-26 02:06:25,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:06:25,478 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:06:25,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:06:25,794 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:06:25,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:06:25,873 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:06:25,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25 WrapperNode [2019-11-26 02:06:25,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:06:25,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:06:25,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:06:25,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:06:25,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:06:25,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:06:25,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:06:25,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:06:25,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:06:25,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:06:25,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:06:25,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:06:25,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/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 [2019-11-26 02:06:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:06:26,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:06:26,185 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-26 02:06:26,832 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2019-11-26 02:06:26,832 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2019-11-26 02:06:27,124 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:06:27,124 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-26 02:06:27,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:06:27 BoogieIcfgContainer [2019-11-26 02:06:27,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:06:27,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:06:27,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:06:27,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:06:27,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:06:25" (1/3) ... [2019-11-26 02:06:27,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ca87a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:06:27, skipping insertion in model container [2019-11-26 02:06:27,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (2/3) ... [2019-11-26 02:06:27,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ca87a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:06:27, skipping insertion in model container [2019-11-26 02:06:27,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:06:27" (3/3) ... [2019-11-26 02:06:27,132 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_13.cil.c [2019-11-26 02:06:27,141 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:06:27,148 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:06:27,158 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:06:27,194 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:06:27,194 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:06:27,194 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:06:27,195 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:06:27,195 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:06:27,195 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:06:27,195 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:06:27,196 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:06:27,216 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2019-11-26 02:06:27,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-26 02:06:27,224 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:06:27,225 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:06:27,225 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:06:27,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:06:27,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1750142300, now seen corresponding path program 1 times [2019-11-26 02:06:27,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:06:27,240 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370787866] [2019-11-26 02:06:27,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:06:27,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:06:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:06:27,423 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370787866] [2019-11-26 02:06:27,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:06:27,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:06:27,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281651763] [2019-11-26 02:06:27,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:06:27,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:06:27,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:06:27,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:06:27,445 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 3 states. [2019-11-26 02:06:27,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:06:27,682 INFO L93 Difference]: Finished difference Result 250 states and 435 transitions. [2019-11-26 02:06:27,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:06:27,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-26 02:06:27,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:06:27,697 INFO L225 Difference]: With dead ends: 250 [2019-11-26 02:06:27,697 INFO L226 Difference]: Without dead ends: 132 [2019-11-26 02:06:27,701 INFO L630 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 [2019-11-26 02:06:27,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-26 02:06:27,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 130. [2019-11-26 02:06:27,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-11-26 02:06:27,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 193 transitions. [2019-11-26 02:06:27,768 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 193 transitions. Word has length 19 [2019-11-26 02:06:27,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:06:27,768 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 193 transitions. [2019-11-26 02:06:27,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:06:27,768 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 193 transitions. [2019-11-26 02:06:27,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-26 02:06:27,769 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:06:27,769 INFO L410 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] [2019-11-26 02:06:27,770 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:06:27,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:06:27,770 INFO L82 PathProgramCache]: Analyzing trace with hash -11900598, now seen corresponding path program 1 times [2019-11-26 02:06:27,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:06:27,770 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571782394] [2019-11-26 02:06:27,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:06:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:06:27,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:06:27,865 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571782394] [2019-11-26 02:06:27,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:06:27,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:06:27,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628162303] [2019-11-26 02:06:27,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:06:27,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:06:27,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:06:27,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:06:27,868 INFO L87 Difference]: Start difference. First operand 130 states and 193 transitions. Second operand 4 states. [2019-11-26 02:06:28,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:06:28,031 INFO L93 Difference]: Finished difference Result 271 states and 401 transitions. [2019-11-26 02:06:28,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:06:28,031 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-11-26 02:06:28,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:06:28,033 INFO L225 Difference]: With dead ends: 271 [2019-11-26 02:06:28,033 INFO L226 Difference]: Without dead ends: 143 [2019-11-26 02:06:28,035 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:06:28,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-26 02:06:28,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 136. [2019-11-26 02:06:28,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-11-26 02:06:28,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 201 transitions. [2019-11-26 02:06:28,046 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 201 transitions. Word has length 24 [2019-11-26 02:06:28,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:06:28,046 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 201 transitions. [2019-11-26 02:06:28,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:06:28,047 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 201 transitions. [2019-11-26 02:06:28,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:06:28,048 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:06:28,048 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1] [2019-11-26 02:06:28,049 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:06:28,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:06:28,049 INFO L82 PathProgramCache]: Analyzing trace with hash 234265027, now seen corresponding path program 1 times [2019-11-26 02:06:28,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:06:28,050 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783781137] [2019-11-26 02:06:28,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:06:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:06:28,104 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:06:28,104 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783781137] [2019-11-26 02:06:28,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:06:28,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:06:28,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393029771] [2019-11-26 02:06:28,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:06:28,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:06:28,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:06:28,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:06:28,106 INFO L87 Difference]: Start difference. First operand 136 states and 201 transitions. Second operand 3 states. [2019-11-26 02:06:28,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:06:28,313 INFO L93 Difference]: Finished difference Result 324 states and 494 transitions. [2019-11-26 02:06:28,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:06:28,313 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-11-26 02:06:28,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:06:28,315 INFO L225 Difference]: With dead ends: 324 [2019-11-26 02:06:28,315 INFO L226 Difference]: Without dead ends: 178 [2019-11-26 02:06:28,316 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:06:28,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2019-11-26 02:06:28,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 175. [2019-11-26 02:06:28,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-11-26 02:06:28,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 254 transitions. [2019-11-26 02:06:28,328 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 254 transitions. Word has length 34 [2019-11-26 02:06:28,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:06:28,329 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 254 transitions. [2019-11-26 02:06:28,329 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:06:28,329 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 254 transitions. [2019-11-26 02:06:28,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-26 02:06:28,335 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:06:28,335 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:06:28,335 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:06:28,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:06:28,336 INFO L82 PathProgramCache]: Analyzing trace with hash -509312477, now seen corresponding path program 1 times [2019-11-26 02:06:28,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:06:28,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330161293] [2019-11-26 02:06:28,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:06:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:06:28,435 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:06:28,437 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330161293] [2019-11-26 02:06:28,437 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850336534] [2019-11-26 02:06:28,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/bin/utaipan/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 [2019-11-26 02:06:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:06:28,515 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-26 02:06:28,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:06:28,544 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:06:28,544 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:06:28,581 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:06:28,582 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1089660506] [2019-11-26 02:06:28,624 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2019-11-26 02:06:28,624 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:06:28,628 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:06:28,634 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:06:28,634 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:06:28,911 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2019-11-26 02:06:30,252 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:06:31,247 WARN L192 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 168 [2019-11-26 02:06:31,843 WARN L192 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2019-11-26 02:06:32,481 WARN L192 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2019-11-26 02:06:33,081 WARN L192 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 149 [2019-11-26 02:06:33,699 WARN L192 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 150 [2019-11-26 02:06:34,589 WARN L192 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 153 [2019-11-26 02:06:35,123 WARN L192 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2019-11-26 02:06:35,696 WARN L192 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 149 [2019-11-26 02:06:36,252 WARN L192 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 146 [2019-11-26 02:06:36,850 WARN L192 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 152 [2019-11-26 02:06:37,491 WARN L192 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 150 [2019-11-26 02:06:38,106 WARN L192 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 154 [2019-11-26 02:06:38,718 WARN L192 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 156 [2019-11-26 02:06:39,500 WARN L192 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 151 [2019-11-26 02:06:40,076 WARN L192 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2019-11-26 02:06:40,691 WARN L192 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2019-11-26 02:06:41,346 WARN L192 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 147 [2019-11-26 02:06:41,933 WARN L192 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 151 [2019-11-26 02:06:42,549 WARN L192 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 152 [2019-11-26 02:06:43,263 WARN L192 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 153 [2019-11-26 02:06:43,903 WARN L192 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 151 [2019-11-26 02:06:44,558 WARN L192 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 154 [2019-11-26 02:06:45,268 WARN L192 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 157 [2019-11-26 02:06:45,991 WARN L192 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 163 [2019-11-26 02:06:45,993 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-26 02:06:45,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:06:45,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2019-11-26 02:06:45,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424909848] [2019-11-26 02:06:45,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:06:45,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:06:45,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:06:45,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=665, Unknown=0, NotChecked=0, Total=870 [2019-11-26 02:06:45,995 INFO L87 Difference]: Start difference. First operand 175 states and 254 transitions. Second operand 6 states. [2019-11-26 02:06:46,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:06:46,232 INFO L93 Difference]: Finished difference Result 395 states and 567 transitions. [2019-11-26 02:06:46,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:06:46,233 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2019-11-26 02:06:46,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:06:46,235 INFO L225 Difference]: With dead ends: 395 [2019-11-26 02:06:46,235 INFO L226 Difference]: Without dead ends: 222 [2019-11-26 02:06:46,236 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 92 SyntacticMatches, 9 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2019-11-26 02:06:46,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2019-11-26 02:06:46,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 198. [2019-11-26 02:06:46,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-11-26 02:06:46,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 283 transitions. [2019-11-26 02:06:46,253 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 283 transitions. Word has length 42 [2019-11-26 02:06:46,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:06:46,254 INFO L462 AbstractCegarLoop]: Abstraction has 198 states and 283 transitions. [2019-11-26 02:06:46,254 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:06:46,254 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 283 transitions. [2019-11-26 02:06:46,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-11-26 02:06:46,263 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:06:46,264 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:06:46,472 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:06:46,472 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:06:46,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:06:46,472 INFO L82 PathProgramCache]: Analyzing trace with hash -267028804, now seen corresponding path program 2 times [2019-11-26 02:06:46,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:06:46,473 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675116368] [2019-11-26 02:06:46,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:06:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:06:46,548 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-26 02:06:46,548 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675116368] [2019-11-26 02:06:46,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:06:46,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:06:46,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166335986] [2019-11-26 02:06:46,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:06:46,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:06:46,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:06:46,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:06:46,550 INFO L87 Difference]: Start difference. First operand 198 states and 283 transitions. Second operand 4 states. [2019-11-26 02:06:46,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:06:46,701 INFO L93 Difference]: Finished difference Result 452 states and 645 transitions. [2019-11-26 02:06:46,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:06:46,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2019-11-26 02:06:46,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:06:46,705 INFO L225 Difference]: With dead ends: 452 [2019-11-26 02:06:46,705 INFO L226 Difference]: Without dead ends: 256 [2019-11-26 02:06:46,706 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:06:46,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-11-26 02:06:46,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 184. [2019-11-26 02:06:46,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-11-26 02:06:46,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 267 transitions. [2019-11-26 02:06:46,715 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 267 transitions. Word has length 60 [2019-11-26 02:06:46,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:06:46,716 INFO L462 AbstractCegarLoop]: Abstraction has 184 states and 267 transitions. [2019-11-26 02:06:46,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:06:46,716 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 267 transitions. [2019-11-26 02:06:46,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-11-26 02:06:46,717 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:06:46,718 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:06:46,718 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:06:46,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:06:46,718 INFO L82 PathProgramCache]: Analyzing trace with hash 364723740, now seen corresponding path program 1 times [2019-11-26 02:06:46,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:06:46,719 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309503144] [2019-11-26 02:06:46,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:06:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:06:46,774 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-26 02:06:46,774 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309503144] [2019-11-26 02:06:46,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:06:46,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:06:46,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922331862] [2019-11-26 02:06:46,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:06:46,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:06:46,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:06:46,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:06:46,776 INFO L87 Difference]: Start difference. First operand 184 states and 267 transitions. Second operand 4 states. [2019-11-26 02:06:46,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:06:46,909 INFO L93 Difference]: Finished difference Result 396 states and 570 transitions. [2019-11-26 02:06:46,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:06:46,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2019-11-26 02:06:46,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:06:46,913 INFO L225 Difference]: With dead ends: 396 [2019-11-26 02:06:46,913 INFO L226 Difference]: Without dead ends: 214 [2019-11-26 02:06:46,914 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:06:46,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2019-11-26 02:06:46,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 182. [2019-11-26 02:06:46,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-11-26 02:06:46,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 265 transitions. [2019-11-26 02:06:46,921 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 265 transitions. Word has length 61 [2019-11-26 02:06:46,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:06:46,922 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 265 transitions. [2019-11-26 02:06:46,922 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:06:46,922 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 265 transitions. [2019-11-26 02:06:46,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-11-26 02:06:46,923 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:06:46,924 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:06:46,924 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:06:46,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:06:46,924 INFO L82 PathProgramCache]: Analyzing trace with hash 458085691, now seen corresponding path program 1 times [2019-11-26 02:06:46,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:06:46,925 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143710352] [2019-11-26 02:06:46,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:06:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:06:46,977 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:06:46,977 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143710352] [2019-11-26 02:06:46,977 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294070508] [2019-11-26 02:06:46,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/bin/utaipan/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 [2019-11-26 02:06:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:06:47,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-26 02:06:47,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:06:47,096 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-26 02:06:47,096 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:06:47,121 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-26 02:06:47,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-26 02:06:47,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [4] total 9 [2019-11-26 02:06:47,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843914142] [2019-11-26 02:06:47,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:06:47,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:06:47,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:06:47,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:06:47,123 INFO L87 Difference]: Start difference. First operand 182 states and 265 transitions. Second operand 6 states. [2019-11-26 02:06:47,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:06:47,446 INFO L93 Difference]: Finished difference Result 464 states and 708 transitions. [2019-11-26 02:06:47,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:06:47,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2019-11-26 02:06:47,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:06:47,449 INFO L225 Difference]: With dead ends: 464 [2019-11-26 02:06:47,449 INFO L226 Difference]: Without dead ends: 284 [2019-11-26 02:06:47,449 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:06:47,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2019-11-26 02:06:47,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 254. [2019-11-26 02:06:47,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-11-26 02:06:47,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 351 transitions. [2019-11-26 02:06:47,458 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 351 transitions. Word has length 61 [2019-11-26 02:06:47,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:06:47,459 INFO L462 AbstractCegarLoop]: Abstraction has 254 states and 351 transitions. [2019-11-26 02:06:47,459 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:06:47,459 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 351 transitions. [2019-11-26 02:06:47,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-26 02:06:47,460 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:06:47,460 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:06:47,665 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:06:47,665 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:06:47,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:06:47,665 INFO L82 PathProgramCache]: Analyzing trace with hash 88370196, now seen corresponding path program 1 times [2019-11-26 02:06:47,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:06:47,666 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420436677] [2019-11-26 02:06:47,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:06:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:06:47,701 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-26 02:06:47,702 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420436677] [2019-11-26 02:06:47,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:06:47,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:06:47,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426517443] [2019-11-26 02:06:47,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:06:47,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:06:47,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:06:47,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:06:47,703 INFO L87 Difference]: Start difference. First operand 254 states and 351 transitions. Second operand 3 states. [2019-11-26 02:06:47,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:06:47,724 INFO L93 Difference]: Finished difference Result 516 states and 714 transitions. [2019-11-26 02:06:47,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:06:47,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2019-11-26 02:06:47,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:06:47,726 INFO L225 Difference]: With dead ends: 516 [2019-11-26 02:06:47,726 INFO L226 Difference]: Without dead ends: 264 [2019-11-26 02:06:47,727 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:06:47,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-11-26 02:06:47,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2019-11-26 02:06:47,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2019-11-26 02:06:47,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 361 transitions. [2019-11-26 02:06:47,738 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 361 transitions. Word has length 63 [2019-11-26 02:06:47,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:06:47,739 INFO L462 AbstractCegarLoop]: Abstraction has 262 states and 361 transitions. [2019-11-26 02:06:47,740 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:06:47,740 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 361 transitions. [2019-11-26 02:06:47,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-11-26 02:06:47,741 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:06:47,742 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:06:47,742 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:06:47,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:06:47,742 INFO L82 PathProgramCache]: Analyzing trace with hash 903544969, now seen corresponding path program 1 times [2019-11-26 02:06:47,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:06:47,743 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966518844] [2019-11-26 02:06:47,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:06:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:06:47,796 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-26 02:06:47,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966518844] [2019-11-26 02:06:47,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:06:47,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:06:47,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96041679] [2019-11-26 02:06:47,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:06:47,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:06:47,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:06:47,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:06:47,798 INFO L87 Difference]: Start difference. First operand 262 states and 361 transitions. Second operand 3 states. [2019-11-26 02:06:47,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:06:47,987 INFO L93 Difference]: Finished difference Result 580 states and 823 transitions. [2019-11-26 02:06:47,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:06:47,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2019-11-26 02:06:47,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:06:47,989 INFO L225 Difference]: With dead ends: 580 [2019-11-26 02:06:47,989 INFO L226 Difference]: Without dead ends: 308 [2019-11-26 02:06:47,990 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:06:47,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2019-11-26 02:06:47,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 291. [2019-11-26 02:06:47,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2019-11-26 02:06:48,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 408 transitions. [2019-11-26 02:06:48,001 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 408 transitions. Word has length 64 [2019-11-26 02:06:48,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:06:48,001 INFO L462 AbstractCegarLoop]: Abstraction has 291 states and 408 transitions. [2019-11-26 02:06:48,002 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:06:48,002 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 408 transitions. [2019-11-26 02:06:48,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-11-26 02:06:48,003 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:06:48,003 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:06:48,003 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:06:48,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:06:48,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1071934495, now seen corresponding path program 1 times [2019-11-26 02:06:48,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:06:48,004 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360669826] [2019-11-26 02:06:48,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:06:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:06:48,032 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-26 02:06:48,033 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360669826] [2019-11-26 02:06:48,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:06:48,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:06:48,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110999979] [2019-11-26 02:06:48,033 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:06:48,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:06:48,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:06:48,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:06:48,034 INFO L87 Difference]: Start difference. First operand 291 states and 408 transitions. Second operand 3 states. [2019-11-26 02:06:48,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:06:48,189 INFO L93 Difference]: Finished difference Result 603 states and 849 transitions. [2019-11-26 02:06:48,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:06:48,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2019-11-26 02:06:48,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:06:48,191 INFO L225 Difference]: With dead ends: 603 [2019-11-26 02:06:48,191 INFO L226 Difference]: Without dead ends: 314 [2019-11-26 02:06:48,192 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:06:48,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-11-26 02:06:48,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 312. [2019-11-26 02:06:48,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2019-11-26 02:06:48,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 432 transitions. [2019-11-26 02:06:48,201 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 432 transitions. Word has length 71 [2019-11-26 02:06:48,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:06:48,202 INFO L462 AbstractCegarLoop]: Abstraction has 312 states and 432 transitions. [2019-11-26 02:06:48,202 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:06:48,202 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 432 transitions. [2019-11-26 02:06:48,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-26 02:06:48,203 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:06:48,203 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1] [2019-11-26 02:06:48,203 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:06:48,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:06:48,204 INFO L82 PathProgramCache]: Analyzing trace with hash 222171739, now seen corresponding path program 1 times [2019-11-26 02:06:48,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:06:48,204 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002737537] [2019-11-26 02:06:48,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:06:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:06:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:06:48,328 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:06:48,328 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:06:48,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:06:48 BoogieIcfgContainer [2019-11-26 02:06:48,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:06:48,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:06:48,407 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:06:48,407 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:06:48,407 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:06:27" (3/4) ... [2019-11-26 02:06:48,410 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:06:48,511 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_69c23cce-950e-4143-87ea-ef53b0a01b2e/bin/utaipan/witness.graphml [2019-11-26 02:06:48,511 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:06:48,515 INFO L168 Benchmark]: Toolchain (without parser) took 23115.04 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 546.8 MB). Free memory was 944.7 MB in the beginning and 1.5 GB in the end (delta: -545.7 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:06:48,515 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:06:48,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 473.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:06:48,516 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.94 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. [2019-11-26 02:06:48,516 INFO L168 Benchmark]: Boogie Preprocessor took 36.61 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. [2019-11-26 02:06:48,517 INFO L168 Benchmark]: RCFGBuilder took 1159.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.6 MB). Peak memory consumption was 93.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:06:48,517 INFO L168 Benchmark]: TraceAbstraction took 21279.71 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 404.2 MB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -475.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:06:48,517 INFO L168 Benchmark]: Witness Printer took 107.20 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:06:48,521 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 473.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.94 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 36.61 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 1159.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.6 MB). Peak memory consumption was 93.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21279.71 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 404.2 MB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -475.1 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 107.20 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 642]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L647] int s ; [L648] int tmp ; [L652] s = 8464 [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__hit = __VERIFIER_nondet_int() ; [L20] int s__rwstate ; [L21] int s__init_buf___0 = 1; [L22] int s__debug = __VERIFIER_nondet_int() ; [L23] int s__shutdown ; [L24] int s__cert = __VERIFIER_nondet_int() ; [L25] int s__options = __VERIFIER_nondet_int() ; [L26] int s__verify_mode = __VERIFIER_nondet_int() ; [L27] int s__session__peer = __VERIFIER_nondet_int() ; [L28] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L29] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L33] int s__s3__tmp__cert_request ; [L34] int s__s3__tmp__reuse_message ; [L35] int s__s3__tmp__use_rsa_tmp ; [L36] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher__algorithms ; [L38] int s__s3__tmp__next_state___0 ; [L39] int s__s3__tmp__new_cipher__algo_strength ; [L40] int s__session__cipher ; [L41] int buf ; [L42] unsigned long l ; [L43] unsigned long Time ; [L44] unsigned long tmp ; [L45] int cb ; [L46] long num1 = __VERIFIER_nondet_long() ; [L47] int ret ; [L48] int new_state ; [L49] int state ; [L50] int skip ; [L51] int got_new_session ; [L52] int tmp___1 = __VERIFIER_nondet_int() ; [L53] int tmp___2 = __VERIFIER_nondet_int() ; [L54] int tmp___3 = __VERIFIER_nondet_int() ; [L55] int tmp___4 = __VERIFIER_nondet_int() ; [L56] int tmp___5 = __VERIFIER_nondet_int() ; [L57] int tmp___6 = __VERIFIER_nondet_int() ; [L58] int tmp___7 = __VERIFIER_nondet_int() ; [L59] long tmp___8 = __VERIFIER_nondet_long() ; [L60] int tmp___9 = __VERIFIER_nondet_int() ; [L61] int tmp___10 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] unsigned long __cil_tmp57 ; [L66] unsigned long __cil_tmp58 ; [L67] unsigned long __cil_tmp59 ; [L68] int __cil_tmp60 ; [L69] unsigned long __cil_tmp61 ; [L72] s__state = initial_state [L73] blastFlag = 0 [L74] tmp = __VERIFIER_nondet_int() [L75] Time = tmp [L76] cb = 0 [L77] ret = -1 [L78] skip = 0 [L79] got_new_session = 0 [L80] COND TRUE s__info_callback != 0 [L81] cb = s__info_callback [L87] s__in_handshake ++ [L88] COND FALSE !(tmp___1 + 12288) [L93] COND FALSE !(s__cert == 0) [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND TRUE s__state == 8464 [L270] s__shutdown = 0 [L271] ret = __VERIFIER_nondet_int() [L272] COND TRUE blastFlag == 0 [L273] blastFlag = 1 [L275] COND FALSE !(ret <= 0) [L278] got_new_session = 1 [L279] s__state = 8496 [L280] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND TRUE s__state == 8496 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L288] COND FALSE !(ret <= 0) [L291] COND FALSE !(\read(s__hit)) [L294] s__state = 8512 [L296] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND FALSE !(s__state == 8496) [L136] COND FALSE !(s__state == 8497) [L139] COND TRUE s__state == 8512 [L301] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L302] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L303] COND TRUE __cil_tmp56 + 256UL [L304] skip = 1 [L315] s__state = 8528 [L316] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND FALSE !(s__state == 8496) [L136] COND FALSE !(s__state == 8497) [L139] COND FALSE !(s__state == 8512) [L142] COND FALSE !(s__state == 8513) [L145] COND TRUE s__state == 8528 [L320] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L321] l = (unsigned long )s__s3__tmp__new_cipher__algorithms [L323] __cil_tmp57 = (unsigned long )s__options [L324] COND TRUE __cil_tmp57 + 2097152UL [L325] s__s3__tmp__use_rsa_tmp = 1 [L330] COND TRUE \read(s__s3__tmp__use_rsa_tmp) [L357] ret = __VERIFIER_nondet_int() [L358] COND FALSE !(blastFlag == 6) [L361] COND FALSE !(ret <= 0) [L378] s__state = 8544 [L379] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND TRUE ! s__s3__tmp__reuse_message [L601] COND TRUE ! skip [L602] COND TRUE state == 8528 [L603] COND TRUE s__state == 8544 [L604] COND TRUE tmp___7 != 1024 [L605] COND TRUE tmp___7 != 512 [L606] COND TRUE __cil_tmp58 != 4294967294 [L607] COND TRUE l != 4294967266 [L642] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 114 locations, 1 error locations. Result: UNSAFE, OverallTime: 21.2s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1513 SDtfs, 855 SDslu, 1655 SDs, 0 SdLazy, 1500 SolverSat, 278 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 285 GetRequests, 225 SyntacticMatches, 10 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 15.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=312occurred in iteration=10, 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, 10 MinimizatonAttempts, 191 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 690 NumberOfCodeBlocks, 690 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 691 ConstructedInterpolants, 0 QuantifiedInterpolants, 72981 SizeOfPredicates, 5 NumberOfNonLiveVariables, 335 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 312/354 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...