./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_020eacb7-1d34-478a-b9fd-c649934b65cb/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_020eacb7-1d34-478a-b9fd-c649934b65cb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_020eacb7-1d34-478a-b9fd-c649934b65cb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_020eacb7-1d34-478a-b9fd-c649934b65cb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_020eacb7-1d34-478a-b9fd-c649934b65cb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_020eacb7-1d34-478a-b9fd-c649934b65cb/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f7047f55ac2887c2060382be67f6b237af9da492 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-22 13:08:57,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:57,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:57,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:57,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:57,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:57,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:57,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:57,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:57,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:57,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:57,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:57,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:57,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:57,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:57,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:57,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:57,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:57,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:57,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:57,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:57,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:57,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:57,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:57,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:57,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:57,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:57,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:57,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:57,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:57,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:57,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:57,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:57,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:57,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:57,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:57,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:57,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:57,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:57,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:57,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:57,931 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_020eacb7-1d34-478a-b9fd-c649934b65cb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:08:57,957 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:57,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:57,958 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:57,958 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:57,959 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:57,959 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:57,959 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:08:57,959 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:57,959 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:57,959 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:08:57,960 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:08:57,960 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:57,960 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:08:57,960 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:08:57,960 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:08:57,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:57,961 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:57,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:08:57,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:57,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:57,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:08:57,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:57,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:08:57,962 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:57,963 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:57,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:08:57,963 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:57,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:08:57,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:57,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:57,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:57,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:57,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:57,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:57,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:08:57,965 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:08:57,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:08:57,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:08:57,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:57,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:57,966 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_020eacb7-1d34-478a-b9fd-c649934b65cb/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_020eacb7-1d34-478a-b9fd-c649934b65cb/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7047f55ac2887c2060382be67f6b237af9da492 [2020-11-22 13:08:58,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:58,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:58,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:58,221 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:58,221 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:58,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_020eacb7-1d34-478a-b9fd-c649934b65cb/bin/utaipan/../../sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-2.c [2020-11-22 13:08:58,290 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_020eacb7-1d34-478a-b9fd-c649934b65cb/bin/utaipan/data/886f6f615/b6d60dfa52134f5b9f512f3643ee1e39/FLAGe7f055bef [2020-11-22 13:08:58,714 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:58,715 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_020eacb7-1d34-478a-b9fd-c649934b65cb/sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-2.c [2020-11-22 13:08:58,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_020eacb7-1d34-478a-b9fd-c649934b65cb/bin/utaipan/data/886f6f615/b6d60dfa52134f5b9f512f3643ee1e39/FLAGe7f055bef [2020-11-22 13:08:59,090 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_020eacb7-1d34-478a-b9fd-c649934b65cb/bin/utaipan/data/886f6f615/b6d60dfa52134f5b9f512f3643ee1e39 [2020-11-22 13:08:59,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:59,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:59,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:59,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:59,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:59,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:59" (1/1) ... [2020-11-22 13:08:59,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@506ceed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:59, skipping insertion in model container [2020-11-22 13:08:59,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:59" (1/1) ... [2020-11-22 13:08:59,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:59,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:59,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:59,421 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:08:59,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:59,530 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:08:59,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:59 WrapperNode [2020-11-22 13:08:59,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:59,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:59,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:08:59,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:08:59,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:59" (1/1) ... [2020-11-22 13:08:59,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:59" (1/1) ... [2020-11-22 13:08:59,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:59,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:08:59,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:08:59,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:08:59,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:59" (1/1) ... [2020-11-22 13:08:59,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:59" (1/1) ... [2020-11-22 13:08:59,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:59" (1/1) ... [2020-11-22 13:08:59,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:59" (1/1) ... [2020-11-22 13:08:59,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:59" (1/1) ... [2020-11-22 13:08:59,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:59" (1/1) ... [2020-11-22 13:08:59,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:59" (1/1) ... [2020-11-22 13:08:59,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:08:59,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:08:59,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:08:59,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:08:59,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_020eacb7-1d34-478a-b9fd-c649934b65cb/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 [2020-11-22 13:08:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:08:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:08:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:08:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:08:59,880 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-22 13:09:00,529 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-11-22 13:09:00,529 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-11-22 13:09:00,895 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:09:00,895 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-22 13:09:00,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:00 BoogieIcfgContainer [2020-11-22 13:09:00,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:09:00,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:09:00,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:09:00,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:09:00,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:08:59" (1/3) ... [2020-11-22 13:09:00,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@998ceec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:00, skipping insertion in model container [2020-11-22 13:09:00,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:59" (2/3) ... [2020-11-22 13:09:00,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@998ceec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:00, skipping insertion in model container [2020-11-22 13:09:00,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:00" (3/3) ... [2020-11-22 13:09:00,905 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_2.cil-2.c [2020-11-22 13:09:00,915 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:09:00,920 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:09:00,932 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:09:00,961 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:09:00,961 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:09:00,962 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:09:00,962 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:09:00,962 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:09:00,962 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:09:00,962 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:09:00,962 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:09:00,976 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states. [2020-11-22 13:09:00,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-22 13:09:00,983 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:00,983 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:00,984 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:00,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:00,989 INFO L82 PathProgramCache]: Analyzing trace with hash 817286620, now seen corresponding path program 1 times [2020-11-22 13:09:00,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:00,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036970179] [2020-11-22 13:09:00,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:01,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:01,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036970179] [2020-11-22 13:09:01,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:01,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:09:01,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170986846] [2020-11-22 13:09:01,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:01,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:09:01,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:01,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:01,275 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 3 states. [2020-11-22 13:09:01,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:01,620 INFO L93 Difference]: Finished difference Result 258 states and 452 transitions. [2020-11-22 13:09:01,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:01,623 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2020-11-22 13:09:01,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:01,646 INFO L225 Difference]: With dead ends: 258 [2020-11-22 13:09:01,650 INFO L226 Difference]: Without dead ends: 148 [2020-11-22 13:09:01,653 INFO L677 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 [2020-11-22 13:09:01,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-11-22 13:09:01,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 143. [2020-11-22 13:09:01,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-11-22 13:09:01,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 230 transitions. [2020-11-22 13:09:01,731 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 230 transitions. Word has length 39 [2020-11-22 13:09:01,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:01,732 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 230 transitions. [2020-11-22 13:09:01,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:01,732 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 230 transitions. [2020-11-22 13:09:01,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-22 13:09:01,736 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:01,736 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:01,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:09:01,737 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:01,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:01,740 INFO L82 PathProgramCache]: Analyzing trace with hash -441073254, now seen corresponding path program 1 times [2020-11-22 13:09:01,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:01,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986559945] [2020-11-22 13:09:01,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:01,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:01,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986559945] [2020-11-22 13:09:01,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:01,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:09:01,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961072025] [2020-11-22 13:09:01,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:01,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:09:01,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:01,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:01,865 INFO L87 Difference]: Start difference. First operand 143 states and 230 transitions. Second operand 3 states. [2020-11-22 13:09:02,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:02,149 INFO L93 Difference]: Finished difference Result 330 states and 540 transitions. [2020-11-22 13:09:02,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:02,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-11-22 13:09:02,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:02,155 INFO L225 Difference]: With dead ends: 330 [2020-11-22 13:09:02,155 INFO L226 Difference]: Without dead ends: 187 [2020-11-22 13:09:02,157 INFO L677 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 [2020-11-22 13:09:02,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-11-22 13:09:02,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 182. [2020-11-22 13:09:02,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-11-22 13:09:02,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 303 transitions. [2020-11-22 13:09:02,181 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 303 transitions. Word has length 40 [2020-11-22 13:09:02,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:02,182 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 303 transitions. [2020-11-22 13:09:02,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:02,183 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 303 transitions. [2020-11-22 13:09:02,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-11-22 13:09:02,191 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:02,192 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2020-11-22 13:09:02,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:09:02,192 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:02,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:02,193 INFO L82 PathProgramCache]: Analyzing trace with hash 929249400, now seen corresponding path program 1 times [2020-11-22 13:09:02,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:02,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103288502] [2020-11-22 13:09:02,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:02,285 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:02,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103288502] [2020-11-22 13:09:02,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:02,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:09:02,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895429222] [2020-11-22 13:09:02,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:02,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:09:02,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:02,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:02,288 INFO L87 Difference]: Start difference. First operand 182 states and 303 transitions. Second operand 3 states. [2020-11-22 13:09:02,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:02,543 INFO L93 Difference]: Finished difference Result 391 states and 658 transitions. [2020-11-22 13:09:02,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:02,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-11-22 13:09:02,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:02,550 INFO L225 Difference]: With dead ends: 391 [2020-11-22 13:09:02,550 INFO L226 Difference]: Without dead ends: 211 [2020-11-22 13:09:02,552 INFO L677 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 [2020-11-22 13:09:02,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-11-22 13:09:02,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-11-22 13:09:02,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-11-22 13:09:02,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 355 transitions. [2020-11-22 13:09:02,575 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 355 transitions. Word has length 66 [2020-11-22 13:09:02,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:02,575 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 355 transitions. [2020-11-22 13:09:02,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:02,576 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 355 transitions. [2020-11-22 13:09:02,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-11-22 13:09:02,580 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:02,580 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2020-11-22 13:09:02,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-22 13:09:02,581 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:02,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:02,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1136706327, now seen corresponding path program 1 times [2020-11-22 13:09:02,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:02,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617098883] [2020-11-22 13:09:02,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:02,647 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-22 13:09:02,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617098883] [2020-11-22 13:09:02,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:02,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:09:02,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817766129] [2020-11-22 13:09:02,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:02,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:09:02,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:02,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:02,650 INFO L87 Difference]: Start difference. First operand 211 states and 355 transitions. Second operand 3 states. [2020-11-22 13:09:02,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:02,860 INFO L93 Difference]: Finished difference Result 435 states and 732 transitions. [2020-11-22 13:09:02,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:02,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-11-22 13:09:02,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:02,862 INFO L225 Difference]: With dead ends: 435 [2020-11-22 13:09:02,862 INFO L226 Difference]: Without dead ends: 226 [2020-11-22 13:09:02,863 INFO L677 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 [2020-11-22 13:09:02,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-22 13:09:02,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 224. [2020-11-22 13:09:02,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-11-22 13:09:02,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 374 transitions. [2020-11-22 13:09:02,878 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 374 transitions. Word has length 77 [2020-11-22 13:09:02,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:02,879 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 374 transitions. [2020-11-22 13:09:02,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:02,879 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 374 transitions. [2020-11-22 13:09:02,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-11-22 13:09:02,880 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:02,880 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-22 13:09:02,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-22 13:09:02,881 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:02,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:02,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1916080160, now seen corresponding path program 1 times [2020-11-22 13:09:02,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:02,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291047479] [2020-11-22 13:09:02,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:02,989 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:02,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291047479] [2020-11-22 13:09:02,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:02,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:09:02,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248258882] [2020-11-22 13:09:02,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:02,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:09:02,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:02,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:02,992 INFO L87 Difference]: Start difference. First operand 224 states and 374 transitions. Second operand 3 states. [2020-11-22 13:09:03,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:03,208 INFO L93 Difference]: Finished difference Result 487 states and 819 transitions. [2020-11-22 13:09:03,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:03,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-11-22 13:09:03,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:03,211 INFO L225 Difference]: With dead ends: 487 [2020-11-22 13:09:03,211 INFO L226 Difference]: Without dead ends: 265 [2020-11-22 13:09:03,212 INFO L677 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 [2020-11-22 13:09:03,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-11-22 13:09:03,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 262. [2020-11-22 13:09:03,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-11-22 13:09:03,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 442 transitions. [2020-11-22 13:09:03,234 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 442 transitions. Word has length 77 [2020-11-22 13:09:03,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:03,234 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 442 transitions. [2020-11-22 13:09:03,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:03,234 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 442 transitions. [2020-11-22 13:09:03,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-11-22 13:09:03,241 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:03,241 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2020-11-22 13:09:03,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-22 13:09:03,242 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:03,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:03,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1017921178, now seen corresponding path program 1 times [2020-11-22 13:09:03,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:03,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901809955] [2020-11-22 13:09:03,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:03,323 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-22 13:09:03,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901809955] [2020-11-22 13:09:03,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:03,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:09:03,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736945046] [2020-11-22 13:09:03,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:03,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:09:03,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:03,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:03,326 INFO L87 Difference]: Start difference. First operand 262 states and 442 transitions. Second operand 3 states. [2020-11-22 13:09:03,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:03,487 INFO L93 Difference]: Finished difference Result 524 states and 884 transitions. [2020-11-22 13:09:03,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:03,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-11-22 13:09:03,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:03,489 INFO L225 Difference]: With dead ends: 524 [2020-11-22 13:09:03,489 INFO L226 Difference]: Without dead ends: 264 [2020-11-22 13:09:03,490 INFO L677 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 [2020-11-22 13:09:03,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-11-22 13:09:03,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2020-11-22 13:09:03,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-11-22 13:09:03,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 438 transitions. [2020-11-22 13:09:03,512 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 438 transitions. Word has length 78 [2020-11-22 13:09:03,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:03,513 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 438 transitions. [2020-11-22 13:09:03,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:03,513 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 438 transitions. [2020-11-22 13:09:03,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-11-22 13:09:03,514 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:03,514 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-22 13:09:03,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-22 13:09:03,515 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:03,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:03,515 INFO L82 PathProgramCache]: Analyzing trace with hash -220458498, now seen corresponding path program 1 times [2020-11-22 13:09:03,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:03,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883978012] [2020-11-22 13:09:03,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:03,605 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:03,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883978012] [2020-11-22 13:09:03,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:03,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:09:03,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959558580] [2020-11-22 13:09:03,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:03,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:09:03,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:03,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:03,608 INFO L87 Difference]: Start difference. First operand 262 states and 438 transitions. Second operand 3 states. [2020-11-22 13:09:03,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:03,856 INFO L93 Difference]: Finished difference Result 525 states and 877 transitions. [2020-11-22 13:09:03,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:03,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-11-22 13:09:03,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:03,859 INFO L225 Difference]: With dead ends: 525 [2020-11-22 13:09:03,859 INFO L226 Difference]: Without dead ends: 263 [2020-11-22 13:09:03,860 INFO L677 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 [2020-11-22 13:09:03,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-11-22 13:09:03,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 260. [2020-11-22 13:09:03,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-11-22 13:09:03,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 433 transitions. [2020-11-22 13:09:03,874 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 433 transitions. Word has length 78 [2020-11-22 13:09:03,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:03,874 INFO L481 AbstractCegarLoop]: Abstraction has 260 states and 433 transitions. [2020-11-22 13:09:03,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:03,874 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 433 transitions. [2020-11-22 13:09:03,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-11-22 13:09:03,876 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:03,877 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:03,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-22 13:09:03,877 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:03,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:03,877 INFO L82 PathProgramCache]: Analyzing trace with hash -819616994, now seen corresponding path program 1 times [2020-11-22 13:09:03,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:03,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366623676] [2020-11-22 13:09:03,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:03,941 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-11-22 13:09:03,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366623676] [2020-11-22 13:09:03,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:03,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:09:03,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100408571] [2020-11-22 13:09:03,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:03,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:09:03,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:03,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:03,945 INFO L87 Difference]: Start difference. First operand 260 states and 433 transitions. Second operand 3 states. [2020-11-22 13:09:04,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:04,107 INFO L93 Difference]: Finished difference Result 525 states and 873 transitions. [2020-11-22 13:09:04,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:04,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-11-22 13:09:04,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:04,110 INFO L225 Difference]: With dead ends: 525 [2020-11-22 13:09:04,110 INFO L226 Difference]: Without dead ends: 267 [2020-11-22 13:09:04,111 INFO L677 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 [2020-11-22 13:09:04,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-11-22 13:09:04,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2020-11-22 13:09:04,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-11-22 13:09:04,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 436 transitions. [2020-11-22 13:09:04,122 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 436 transitions. Word has length 86 [2020-11-22 13:09:04,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:04,123 INFO L481 AbstractCegarLoop]: Abstraction has 267 states and 436 transitions. [2020-11-22 13:09:04,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:04,123 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 436 transitions. [2020-11-22 13:09:04,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-11-22 13:09:04,124 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:04,125 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-22 13:09:04,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-22 13:09:04,125 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:04,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:04,126 INFO L82 PathProgramCache]: Analyzing trace with hash -897229894, now seen corresponding path program 1 times [2020-11-22 13:09:04,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:04,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623610073] [2020-11-22 13:09:04,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:04,171 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-22 13:09:04,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623610073] [2020-11-22 13:09:04,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:04,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:09:04,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90704668] [2020-11-22 13:09:04,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:04,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:09:04,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:04,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:04,174 INFO L87 Difference]: Start difference. First operand 267 states and 436 transitions. Second operand 3 states. [2020-11-22 13:09:04,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:04,362 INFO L93 Difference]: Finished difference Result 561 states and 919 transitions. [2020-11-22 13:09:04,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:04,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2020-11-22 13:09:04,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:04,365 INFO L225 Difference]: With dead ends: 561 [2020-11-22 13:09:04,365 INFO L226 Difference]: Without dead ends: 296 [2020-11-22 13:09:04,366 INFO L677 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 [2020-11-22 13:09:04,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-11-22 13:09:04,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 294. [2020-11-22 13:09:04,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-11-22 13:09:04,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 479 transitions. [2020-11-22 13:09:04,381 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 479 transitions. Word has length 91 [2020-11-22 13:09:04,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:04,384 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 479 transitions. [2020-11-22 13:09:04,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:04,384 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 479 transitions. [2020-11-22 13:09:04,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-11-22 13:09:04,386 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:04,386 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-22 13:09:04,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-22 13:09:04,386 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:04,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:04,387 INFO L82 PathProgramCache]: Analyzing trace with hash 2089550429, now seen corresponding path program 1 times [2020-11-22 13:09:04,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:04,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592621750] [2020-11-22 13:09:04,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:04,438 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-22 13:09:04,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592621750] [2020-11-22 13:09:04,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:04,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:09:04,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148156435] [2020-11-22 13:09:04,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:04,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:09:04,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:04,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:04,441 INFO L87 Difference]: Start difference. First operand 294 states and 479 transitions. Second operand 3 states. [2020-11-22 13:09:04,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:04,644 INFO L93 Difference]: Finished difference Result 588 states and 958 transitions. [2020-11-22 13:09:04,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:04,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-11-22 13:09:04,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:04,647 INFO L225 Difference]: With dead ends: 588 [2020-11-22 13:09:04,647 INFO L226 Difference]: Without dead ends: 296 [2020-11-22 13:09:04,648 INFO L677 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 [2020-11-22 13:09:04,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-11-22 13:09:04,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 294. [2020-11-22 13:09:04,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-11-22 13:09:04,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 475 transitions. [2020-11-22 13:09:04,660 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 475 transitions. Word has length 92 [2020-11-22 13:09:04,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:04,661 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 475 transitions. [2020-11-22 13:09:04,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:04,661 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 475 transitions. [2020-11-22 13:09:04,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-11-22 13:09:04,662 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:04,662 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2020-11-22 13:09:04,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-22 13:09:04,663 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:04,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:04,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1089657558, now seen corresponding path program 1 times [2020-11-22 13:09:04,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:04,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620299159] [2020-11-22 13:09:04,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:04,714 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-22 13:09:04,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620299159] [2020-11-22 13:09:04,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:04,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:09:04,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016295816] [2020-11-22 13:09:04,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:04,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:09:04,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:04,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:04,716 INFO L87 Difference]: Start difference. First operand 294 states and 475 transitions. Second operand 3 states. [2020-11-22 13:09:04,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:04,916 INFO L93 Difference]: Finished difference Result 619 states and 1004 transitions. [2020-11-22 13:09:04,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:04,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2020-11-22 13:09:04,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:04,919 INFO L225 Difference]: With dead ends: 619 [2020-11-22 13:09:04,920 INFO L226 Difference]: Without dead ends: 327 [2020-11-22 13:09:04,920 INFO L677 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 [2020-11-22 13:09:04,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-11-22 13:09:04,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319. [2020-11-22 13:09:04,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-11-22 13:09:04,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 513 transitions. [2020-11-22 13:09:04,936 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 513 transitions. Word has length 93 [2020-11-22 13:09:04,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:04,936 INFO L481 AbstractCegarLoop]: Abstraction has 319 states and 513 transitions. [2020-11-22 13:09:04,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:04,937 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 513 transitions. [2020-11-22 13:09:04,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-11-22 13:09:04,938 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:04,938 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-22 13:09:04,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-22 13:09:04,938 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:04,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:04,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1226218096, now seen corresponding path program 1 times [2020-11-22 13:09:04,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:04,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023382908] [2020-11-22 13:09:04,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:04,978 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-11-22 13:09:04,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023382908] [2020-11-22 13:09:04,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:04,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:09:04,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358789103] [2020-11-22 13:09:04,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:04,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:09:04,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:04,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:04,980 INFO L87 Difference]: Start difference. First operand 319 states and 513 transitions. Second operand 3 states. [2020-11-22 13:09:05,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:05,159 INFO L93 Difference]: Finished difference Result 657 states and 1057 transitions. [2020-11-22 13:09:05,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:05,159 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2020-11-22 13:09:05,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:05,162 INFO L225 Difference]: With dead ends: 657 [2020-11-22 13:09:05,162 INFO L226 Difference]: Without dead ends: 340 [2020-11-22 13:09:05,163 INFO L677 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 [2020-11-22 13:09:05,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-11-22 13:09:05,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 338. [2020-11-22 13:09:05,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-22 13:09:05,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 538 transitions. [2020-11-22 13:09:05,182 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 538 transitions. Word has length 94 [2020-11-22 13:09:05,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:05,183 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 538 transitions. [2020-11-22 13:09:05,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:05,183 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 538 transitions. [2020-11-22 13:09:05,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-11-22 13:09:05,185 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:05,185 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2020-11-22 13:09:05,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-22 13:09:05,185 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:05,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:05,186 INFO L82 PathProgramCache]: Analyzing trace with hash 246720109, now seen corresponding path program 1 times [2020-11-22 13:09:05,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:05,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286313279] [2020-11-22 13:09:05,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:05,245 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-22 13:09:05,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286313279] [2020-11-22 13:09:05,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:05,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:09:05,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321756993] [2020-11-22 13:09:05,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:05,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:09:05,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:05,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:05,248 INFO L87 Difference]: Start difference. First operand 338 states and 538 transitions. Second operand 3 states. [2020-11-22 13:09:05,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:05,451 INFO L93 Difference]: Finished difference Result 682 states and 1087 transitions. [2020-11-22 13:09:05,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:05,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2020-11-22 13:09:05,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:05,455 INFO L225 Difference]: With dead ends: 682 [2020-11-22 13:09:05,455 INFO L226 Difference]: Without dead ends: 346 [2020-11-22 13:09:05,456 INFO L677 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 [2020-11-22 13:09:05,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-11-22 13:09:05,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 338. [2020-11-22 13:09:05,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-22 13:09:05,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 533 transitions. [2020-11-22 13:09:05,473 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 533 transitions. Word has length 94 [2020-11-22 13:09:05,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:05,474 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 533 transitions. [2020-11-22 13:09:05,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:05,474 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 533 transitions. [2020-11-22 13:09:05,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-11-22 13:09:05,475 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:05,475 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-22 13:09:05,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-22 13:09:05,476 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:05,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:05,476 INFO L82 PathProgramCache]: Analyzing trace with hash -431555955, now seen corresponding path program 1 times [2020-11-22 13:09:05,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:05,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121215134] [2020-11-22 13:09:05,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:05,516 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-11-22 13:09:05,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121215134] [2020-11-22 13:09:05,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:05,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:09:05,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383171347] [2020-11-22 13:09:05,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:05,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:09:05,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:05,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:05,520 INFO L87 Difference]: Start difference. First operand 338 states and 533 transitions. Second operand 3 states. [2020-11-22 13:09:05,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:05,716 INFO L93 Difference]: Finished difference Result 676 states and 1066 transitions. [2020-11-22 13:09:05,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:05,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-11-22 13:09:05,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:05,719 INFO L225 Difference]: With dead ends: 676 [2020-11-22 13:09:05,719 INFO L226 Difference]: Without dead ends: 340 [2020-11-22 13:09:05,720 INFO L677 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 [2020-11-22 13:09:05,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-11-22 13:09:05,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 338. [2020-11-22 13:09:05,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-22 13:09:05,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 527 transitions. [2020-11-22 13:09:05,740 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 527 transitions. Word has length 95 [2020-11-22 13:09:05,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:05,740 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 527 transitions. [2020-11-22 13:09:05,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:05,741 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 527 transitions. [2020-11-22 13:09:05,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-11-22 13:09:05,742 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:05,743 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-22 13:09:05,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-22 13:09:05,743 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:05,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:05,744 INFO L82 PathProgramCache]: Analyzing trace with hash -853276066, now seen corresponding path program 1 times [2020-11-22 13:09:05,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:05,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893138561] [2020-11-22 13:09:05,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:09:05,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:09:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:09:05,810 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:09:05,876 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:09:05,877 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:09:05,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-22 13:09:06,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:09:06 BoogieIcfgContainer [2020-11-22 13:09:06,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:09:06,013 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:09:06,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:09:06,014 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:09:06,014 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:00" (3/4) ... [2020-11-22 13:09:06,016 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:09:06,138 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_020eacb7-1d34-478a-b9fd-c649934b65cb/bin/utaipan/witness.graphml [2020-11-22 13:09:06,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:09:06,140 INFO L168 Benchmark]: Toolchain (without parser) took 7046.01 ms. Allocated memory was 119.5 MB in the beginning and 209.7 MB in the end (delta: 90.2 MB). Free memory was 88.7 MB in the beginning and 120.3 MB in the end (delta: -31.6 MB). Peak memory consumption was 58.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:06,140 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory is still 45.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:09:06,141 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.95 ms. Allocated memory is still 119.5 MB. Free memory was 88.7 MB in the beginning and 90.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:06,142 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.70 ms. Allocated memory is still 119.5 MB. Free memory was 90.6 MB in the beginning and 87.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:06,142 INFO L168 Benchmark]: Boogie Preprocessor took 55.65 ms. Allocated memory is still 119.5 MB. Free memory was 87.9 MB in the beginning and 85.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:06,142 INFO L168 Benchmark]: RCFGBuilder took 1235.12 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 85.8 MB in the beginning and 98.4 MB in the end (delta: -12.6 MB). Peak memory consumption was 42.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:06,145 INFO L168 Benchmark]: TraceAbstraction took 5114.57 ms. Allocated memory was 144.7 MB in the beginning and 209.7 MB in the end (delta: 65.0 MB). Free memory was 98.1 MB in the beginning and 133.9 MB in the end (delta: -35.9 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:06,146 INFO L168 Benchmark]: Witness Printer took 124.85 ms. Allocated memory is still 209.7 MB. Free memory was 133.9 MB in the beginning and 120.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:06,148 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory is still 45.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 421.95 ms. Allocated memory is still 119.5 MB. Free memory was 88.7 MB in the beginning and 90.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.70 ms. Allocated memory is still 119.5 MB. Free memory was 90.6 MB in the beginning and 87.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.65 ms. Allocated memory is still 119.5 MB. Free memory was 87.9 MB in the beginning and 85.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1235.12 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 85.8 MB in the beginning and 98.4 MB in the end (delta: -12.6 MB). Peak memory consumption was 42.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5114.57 ms. Allocated memory was 144.7 MB in the beginning and 209.7 MB in the end (delta: 65.0 MB). Free memory was 98.1 MB in the beginning and 133.9 MB in the end (delta: -35.9 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. * Witness Printer took 124.85 ms. Allocated memory is still 209.7 MB. Free memory was 133.9 MB in the beginning and 120.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L614] int s ; [L615] int tmp ; [L619] s = 8464 [L13] int s__info_callback = __VERIFIER_nondet_int() ; [L14] int s__in_handshake = __VERIFIER_nondet_int() ; [L15] int s__state ; [L16] int s__new_session ; [L17] int s__server ; [L18] int s__version = __VERIFIER_nondet_int() ; [L19] int s__type ; [L20] int s__init_num ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__cert = __VERIFIER_nondet_int() ; [L27] int s__options = __VERIFIER_nondet_int() ; [L28] int s__verify_mode = __VERIFIER_nondet_int() ; [L29] int s__session__peer = __VERIFIER_nondet_int() ; [L30] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L31] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L33] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L34] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__cert_request ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__use_rsa_tmp ; [L38] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L40] int s__s3__tmp__next_state___0 ; [L41] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L42] int s__session__cipher ; [L43] int buf ; [L44] unsigned long l ; [L45] unsigned long Time ; [L46] unsigned long tmp ; [L47] int cb ; [L48] long num1 = __VERIFIER_nondet_long() ; [L49] int ret ; [L50] int new_state ; [L51] int state ; [L52] int skip ; [L53] int got_new_session ; [L54] int tmp___1 = __VERIFIER_nondet_int() ; [L55] int tmp___2 = __VERIFIER_nondet_int() ; [L56] int tmp___3 = __VERIFIER_nondet_int() ; [L57] int tmp___4 = __VERIFIER_nondet_int() ; [L58] int tmp___5 = __VERIFIER_nondet_int() ; [L59] int tmp___6 = __VERIFIER_nondet_int() ; [L60] int tmp___7 ; [L61] long tmp___8 = __VERIFIER_nondet_long() ; [L62] int tmp___9 = __VERIFIER_nondet_int() ; [L63] int tmp___10 = __VERIFIER_nondet_int() ; [L64] int blastFlag ; [L65] int __cil_tmp55 ; [L66] unsigned long __cil_tmp56 ; [L67] unsigned long __cil_tmp57 ; [L68] unsigned long __cil_tmp58 ; [L69] unsigned long __cil_tmp59 ; [L70] int __cil_tmp60 ; [L71] unsigned long __cil_tmp61 ; [L75] s__state = initial_state [L76] blastFlag = 0 [L77] tmp = __VERIFIER_nondet_int() [L78] Time = tmp [L79] cb = 0 [L80] ret = -1 [L81] skip = 0 [L82] got_new_session = 0 [L83] COND FALSE !(s__info_callback != 0) [L86] COND TRUE s__ctx__info_callback != 0 [L87] cb = s__ctx__info_callback [L90] s__in_handshake ++ [L91] COND FALSE !(tmp___1 + 12288) [L96] COND FALSE !(s__cert == 0) [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 8192) [L112] COND FALSE !(s__state == 24576) [L115] COND FALSE !(s__state == 8195) [L118] COND FALSE !(s__state == 8480) [L121] COND FALSE !(s__state == 8481) [L124] COND FALSE !(s__state == 8482) [L127] COND TRUE s__state == 8464 [L273] s__shutdown = 0 [L274] ret = __VERIFIER_nondet_int() [L275] COND TRUE blastFlag == 0 [L276] blastFlag = 1 [L278] COND FALSE !(ret <= 0) [L281] got_new_session = 1 [L282] s__state = 8496 [L283] s__init_num = 0 [L581] COND FALSE !(! s__s3__tmp__reuse_message) [L598] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 8192) [L112] COND FALSE !(s__state == 24576) [L115] COND FALSE !(s__state == 8195) [L118] COND FALSE !(s__state == 8480) [L121] COND FALSE !(s__state == 8481) [L124] COND FALSE !(s__state == 8482) [L127] COND FALSE !(s__state == 8464) [L130] COND FALSE !(s__state == 8465) [L133] COND FALSE !(s__state == 8466) [L136] COND TRUE s__state == 8496 [L287] ret = __VERIFIER_nondet_int() [L288] COND TRUE blastFlag == 1 [L289] blastFlag = 2 [L295] COND FALSE !(ret <= 0) [L298] COND TRUE \read(s__hit) [L299] s__state = 8656 [L303] s__init_num = 0 [L581] COND FALSE !(! s__s3__tmp__reuse_message) [L598] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 8192) [L112] COND FALSE !(s__state == 24576) [L115] COND FALSE !(s__state == 8195) [L118] COND FALSE !(s__state == 8480) [L121] COND FALSE !(s__state == 8481) [L124] COND FALSE !(s__state == 8482) [L127] COND FALSE !(s__state == 8464) [L130] COND FALSE !(s__state == 8465) [L133] COND FALSE !(s__state == 8466) [L136] COND FALSE !(s__state == 8496) [L139] COND FALSE !(s__state == 8497) [L142] COND FALSE !(s__state == 8512) [L145] COND FALSE !(s__state == 8513) [L148] COND FALSE !(s__state == 8528) [L151] COND FALSE !(s__state == 8529) [L154] COND FALSE !(s__state == 8544) [L157] COND FALSE !(s__state == 8545) [L160] COND FALSE !(s__state == 8560) [L163] COND FALSE !(s__state == 8561) [L166] COND FALSE !(s__state == 8448) [L169] COND FALSE !(s__state == 8576) [L172] COND FALSE !(s__state == 8577) [L175] COND FALSE !(s__state == 8592) [L178] COND FALSE !(s__state == 8593) [L181] COND FALSE !(s__state == 8608) [L184] COND FALSE !(s__state == 8609) [L187] COND FALSE !(s__state == 8640) [L190] COND FALSE !(s__state == 8641) [L193] COND TRUE s__state == 8656 [L492] s__session__cipher = s__s3__tmp__new_cipher [L493] COND FALSE !(! tmp___9) [L497] ret = __VERIFIER_nondet_int() [L498] COND TRUE blastFlag == 2 [L499] blastFlag = 3 [L501] COND FALSE !(ret <= 0) [L504] s__state = 8672 [L505] s__init_num = 0 [L506] COND FALSE !(! tmp___10) [L581] COND FALSE !(! s__s3__tmp__reuse_message) [L598] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 8192) [L112] COND FALSE !(s__state == 24576) [L115] COND FALSE !(s__state == 8195) [L118] COND FALSE !(s__state == 8480) [L121] COND FALSE !(s__state == 8481) [L124] COND FALSE !(s__state == 8482) [L127] COND FALSE !(s__state == 8464) [L130] COND FALSE !(s__state == 8465) [L133] COND FALSE !(s__state == 8466) [L136] COND FALSE !(s__state == 8496) [L139] COND FALSE !(s__state == 8497) [L142] COND FALSE !(s__state == 8512) [L145] COND FALSE !(s__state == 8513) [L148] COND FALSE !(s__state == 8528) [L151] COND FALSE !(s__state == 8529) [L154] COND FALSE !(s__state == 8544) [L157] COND FALSE !(s__state == 8545) [L160] COND FALSE !(s__state == 8560) [L163] COND FALSE !(s__state == 8561) [L166] COND FALSE !(s__state == 8448) [L169] COND FALSE !(s__state == 8576) [L172] COND FALSE !(s__state == 8577) [L175] COND FALSE !(s__state == 8592) [L178] COND FALSE !(s__state == 8593) [L181] COND FALSE !(s__state == 8608) [L184] COND FALSE !(s__state == 8609) [L187] COND FALSE !(s__state == 8640) [L190] COND FALSE !(s__state == 8641) [L193] COND FALSE !(s__state == 8656) [L196] COND FALSE !(s__state == 8657) [L199] COND TRUE s__state == 8672 [L513] ret = __VERIFIER_nondet_int() [L514] COND TRUE blastFlag == 3 [L3] __assert_fail("0", "s3_srvr_2.cil-2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 106 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.9s, OverallIterations: 15, TraceHistogramMax: 4, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1247 SDtfs, 1552 SDslu, 164 SDs, 0 SdLazy, 1291 SolverSat, 569 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=338occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 44 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1208 NumberOfCodeBlocks, 1208 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1086 ConstructedInterpolants, 0 QuantifiedInterpolants, 153466 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 603/603 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...