./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ssh-simplified/s3_srvr_1a.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ssh-simplified/s3_srvr_1a.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d8f19e5f85495da246f7b055515ad1966fa98828 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:57:11,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:57:11,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:57:11,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:57:11,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:57:11,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:57:11,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:57:11,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:57:11,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:57:11,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:57:11,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:57:11,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:57:11,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:57:11,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:57:11,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:57:11,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:57:11,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:57:11,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:57:11,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:57:11,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:57:11,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:57:11,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:57:11,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:57:11,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:57:11,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:57:11,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:57:11,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:57:11,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:57:11,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:57:11,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:57:11,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:57:12,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:57:12,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:57:12,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:57:12,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:57:12,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:57:12,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:57:12,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:57:12,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:57:12,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:57:12,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:57:12,003 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 14:57:12,014 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:57:12,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:57:12,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:57:12,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:57:12,015 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:57:12,015 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 14:57:12,015 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 14:57:12,015 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 14:57:12,015 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 14:57:12,016 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 14:57:12,016 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 14:57:12,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:57:12,016 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:57:12,016 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 14:57:12,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:57:12,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:57:12,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:57:12,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 14:57:12,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 14:57:12,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 14:57:12,017 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:57:12,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:57:12,017 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 14:57:12,017 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:57:12,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 14:57:12,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:57:12,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:57:12,018 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 14:57:12,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:57:12,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:57:12,018 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:57:12,019 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 14:57:12,019 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 14:57:12,019 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer 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(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8f19e5f85495da246f7b055515ad1966fa98828 [2019-12-07 14:57:12,118 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:57:12,126 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:57:12,129 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:57:12,130 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:57:12,130 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:57:12,131 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/../../sv-benchmarks/c/ssh-simplified/s3_srvr_1a.cil.c [2019-12-07 14:57:12,169 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/data/56a9712de/f941250b45c64e4f9a4785e6ea0a5dea/FLAG3984ba161 [2019-12-07 14:57:12,566 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:57:12,567 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/sv-benchmarks/c/ssh-simplified/s3_srvr_1a.cil.c [2019-12-07 14:57:12,573 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/data/56a9712de/f941250b45c64e4f9a4785e6ea0a5dea/FLAG3984ba161 [2019-12-07 14:57:12,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/data/56a9712de/f941250b45c64e4f9a4785e6ea0a5dea [2019-12-07 14:57:12,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:57:12,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:57:12,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:57:12,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:57:12,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:57:12,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:57:12" (1/1) ... [2019-12-07 14:57:12,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c5bdcfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:57:12, skipping insertion in model container [2019-12-07 14:57:12,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:57:12" (1/1) ... [2019-12-07 14:57:12,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:57:12,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:57:13,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:57:13,130 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:57:13,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:57:13,159 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:57:13,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:57:13 WrapperNode [2019-12-07 14:57:13,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:57:13,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:57:13,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:57:13,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:57:13,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:57:13" (1/1) ... [2019-12-07 14:57:13,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:57:13" (1/1) ... [2019-12-07 14:57:13,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:57:13,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:57:13,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:57:13,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:57:13,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:57:13" (1/1) ... [2019-12-07 14:57:13,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:57:13" (1/1) ... [2019-12-07 14:57:13,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:57:13" (1/1) ... [2019-12-07 14:57:13,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:57:13" (1/1) ... [2019-12-07 14:57:13,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:57:13" (1/1) ... [2019-12-07 14:57:13,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:57:13" (1/1) ... [2019-12-07 14:57:13,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:57:13" (1/1) ... [2019-12-07 14:57:13,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:57:13,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:57:13,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:57:13,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:57:13,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:57:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:57:13,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:57:13,413 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:57:13,414 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 14:57:13,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:57:13 BoogieIcfgContainer [2019-12-07 14:57:13,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:57:13,415 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 14:57:13,415 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 14:57:13,417 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 14:57:13,418 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:57:13,418 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 02:57:12" (1/3) ... [2019-12-07 14:57:13,418 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7492b223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:57:13, skipping insertion in model container [2019-12-07 14:57:13,418 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:57:13,419 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:57:13" (2/3) ... [2019-12-07 14:57:13,419 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7492b223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:57:13, skipping insertion in model container [2019-12-07 14:57:13,419 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:57:13,419 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:57:13" (3/3) ... [2019-12-07 14:57:13,420 INFO L371 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2019-12-07 14:57:13,448 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 14:57:13,449 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 14:57:13,449 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 14:57:13,449 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:57:13,449 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:57:13,449 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 14:57:13,449 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:57:13,449 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 14:57:13,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states. [2019-12-07 14:57:13,475 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2019-12-07 14:57:13,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:13,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:13,480 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 14:57:13,480 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 14:57:13,480 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 14:57:13,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states. [2019-12-07 14:57:13,483 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2019-12-07 14:57:13,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:13,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:13,484 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 14:57:13,484 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 14:57:13,488 INFO L794 eck$LassoCheckResult]: Stem: 39#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 25#L176true [2019-12-07 14:57:13,489 INFO L796 eck$LassoCheckResult]: Loop: 25#L176true assume !false; 15#L23true assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 7#L29true assume 8466 == main_~s__state~0; 32#L30true assume !(0 == main_~blastFlag~0); 18#L78-1true main_~s__state~0 := 8496; 25#L176true [2019-12-07 14:57:13,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:13,493 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 14:57:13,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:13,499 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134361849] [2019-12-07 14:57:13,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:13,562 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:13,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:13,563 INFO L82 PathProgramCache]: Analyzing trace with hash 38331118, now seen corresponding path program 1 times [2019-12-07 14:57:13,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:13,564 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086124900] [2019-12-07 14:57:13,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:13,571 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:13,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:13,572 INFO L82 PathProgramCache]: Analyzing trace with hash 925834799, now seen corresponding path program 1 times [2019-12-07 14:57:13,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:13,572 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482399349] [2019-12-07 14:57:13,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:13,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:57:13,605 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482399349] [2019-12-07 14:57:13,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:13,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:57:13,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528681141] [2019-12-07 14:57:13,644 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:57:13,644 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:57:13,644 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:57:13,645 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:57:13,645 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 14:57:13,645 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:13,645 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:57:13,645 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:57:13,645 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration1_Loop [2019-12-07 14:57:13,645 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:57:13,645 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:57:13,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:13,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:13,713 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:57:13,714 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:13,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:57:13,718 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:13,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 14:57:13,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:57:13,731 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 14:57:13,732 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:57:13,732 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:57:13,733 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:57:13,733 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:57:13,733 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:57:13,733 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:13,733 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:57:13,733 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:57:13,733 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration1_Loop [2019-12-07 14:57:13,733 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:57:13,733 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:57:13,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:13,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:13,775 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:57:13,778 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:13,781 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:57:13,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:57:13,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:57:13,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:57:13,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:57:13,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:57:13,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:57:13,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:57:13,788 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:57:13,793 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 14:57:13,793 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:13,796 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:57:13,797 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 14:57:13,797 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:57:13,798 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0) = -1*ULTIMATE.start_main_~s__state~0 + 8481 Supporting invariants [] [2019-12-07 14:57:13,801 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 14:57:13,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:13,825 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:57:13,825 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:57:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:13,831 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:57:13,831 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:57:13,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:57:13,855 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 14:57:13,856 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 44 states. Second operand 4 states. [2019-12-07 14:57:13,980 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 44 states.. Second operand 4 states. Result 134 states and 204 transitions. Complement of second has 8 states. [2019-12-07 14:57:13,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 14:57:13,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:57:13,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2019-12-07 14:57:13,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 1 letters. Loop has 5 letters. [2019-12-07 14:57:13,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:13,985 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 6 letters. Loop has 5 letters. [2019-12-07 14:57:13,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:13,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 1 letters. Loop has 10 letters. [2019-12-07 14:57:13,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:13,987 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 134 states and 204 transitions. [2019-12-07 14:57:13,994 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2019-12-07 14:57:14,000 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 134 states to 80 states and 127 transitions. [2019-12-07 14:57:14,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74 [2019-12-07 14:57:14,001 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 75 [2019-12-07 14:57:14,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 127 transitions. [2019-12-07 14:57:14,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:14,003 INFO L688 BuchiCegarLoop]: Abstraction has 80 states and 127 transitions. [2019-12-07 14:57:14,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 127 transitions. [2019-12-07 14:57:14,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 47. [2019-12-07 14:57:14,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-12-07 14:57:14,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 73 transitions. [2019-12-07 14:57:14,028 INFO L711 BuchiCegarLoop]: Abstraction has 47 states and 73 transitions. [2019-12-07 14:57:14,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:57:14,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:57:14,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:57:14,031 INFO L87 Difference]: Start difference. First operand 47 states and 73 transitions. Second operand 3 states. [2019-12-07 14:57:14,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:57:14,054 INFO L93 Difference]: Finished difference Result 89 states and 133 transitions. [2019-12-07 14:57:14,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:57:14,054 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 133 transitions. [2019-12-07 14:57:14,056 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2019-12-07 14:57:14,058 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 89 states and 133 transitions. [2019-12-07 14:57:14,058 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 81 [2019-12-07 14:57:14,058 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 81 [2019-12-07 14:57:14,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 133 transitions. [2019-12-07 14:57:14,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:14,058 INFO L688 BuchiCegarLoop]: Abstraction has 89 states and 133 transitions. [2019-12-07 14:57:14,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 133 transitions. [2019-12-07 14:57:14,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2019-12-07 14:57:14,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-12-07 14:57:14,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 133 transitions. [2019-12-07 14:57:14,063 INFO L711 BuchiCegarLoop]: Abstraction has 89 states and 133 transitions. [2019-12-07 14:57:14,063 INFO L591 BuchiCegarLoop]: Abstraction has 89 states and 133 transitions. [2019-12-07 14:57:14,063 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 14:57:14,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states and 133 transitions. [2019-12-07 14:57:14,064 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2019-12-07 14:57:14,065 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:14,065 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:14,065 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 14:57:14,065 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 14:57:14,065 INFO L794 eck$LassoCheckResult]: Stem: 408#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 395#L176 assume !false; 383#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 370#L29 assume !(8466 == main_~s__state~0); 371#L32 [2019-12-07 14:57:14,065 INFO L796 eck$LassoCheckResult]: Loop: 371#L32 assume 8496 == main_~s__state~0; 379#L33 assume !(1 == main_~blastFlag~0); 406#L85-1 assume 0 != main_~s__hit~0;main_~s__state~0 := 8656; 365#L176 assume !false; 450#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 449#L29 assume !(8466 == main_~s__state~0); 371#L32 [2019-12-07 14:57:14,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:14,066 INFO L82 PathProgramCache]: Analyzing trace with hash 963407, now seen corresponding path program 1 times [2019-12-07 14:57:14,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:14,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617650127] [2019-12-07 14:57:14,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:14,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:57:14,075 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617650127] [2019-12-07 14:57:14,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:14,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 14:57:14,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343439784] [2019-12-07 14:57:14,076 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 14:57:14,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:14,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1630948181, now seen corresponding path program 1 times [2019-12-07 14:57:14,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:14,076 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230841984] [2019-12-07 14:57:14,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:14,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:14,081 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:14,100 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:57:14,100 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:57:14,100 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:57:14,100 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:57:14,100 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 14:57:14,100 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,100 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:57:14,100 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:57:14,100 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration2_Loop [2019-12-07 14:57:14,100 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:57:14,100 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:57:14,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:14,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:14,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:14,136 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:57:14,136 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,139 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:57:14,139 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:57:14,143 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 14:57:14,143 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~s__hit~0=7} Honda state: {ULTIMATE.start_main_~s__hit~0=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,147 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:57:14,147 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,153 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 14:57:14,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:57:14,157 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 14:57:14,158 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:57:14,158 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:57:14,158 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:57:14,158 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:57:14,158 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:57:14,158 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,158 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:57:14,158 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:57:14,158 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration2_Loop [2019-12-07 14:57:14,159 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:57:14,159 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:57:14,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:14,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:14,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:14,191 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:57:14,191 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,194 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:57:14,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:57:14,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:57:14,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:57:14,196 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 14:57:14,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:57:14,197 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 14:57:14,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:57:14,199 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:57:14,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:57:14,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:57:14,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:57:14,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:57:14,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:57:14,205 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:57:14,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:57:14,207 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:57:14,213 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 14:57:14,213 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,217 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:57:14,217 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 14:57:14,217 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:57:14,218 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0) = -1*ULTIMATE.start_main_~s__state~0 + 8576 Supporting invariants [] [2019-12-07 14:57:14,219 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 14:57:14,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:14,234 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:57:14,235 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:57:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:14,238 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:57:14,239 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:57:14,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:57:14,254 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 14:57:14,254 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 89 states and 133 transitions. cyclomatic complexity: 47 Second operand 4 states. [2019-12-07 14:57:14,378 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 89 states and 133 transitions. cyclomatic complexity: 47. Second operand 4 states. Result 288 states and 419 transitions. Complement of second has 7 states. [2019-12-07 14:57:14,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 14:57:14,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:57:14,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2019-12-07 14:57:14,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 90 transitions. Stem has 4 letters. Loop has 6 letters. [2019-12-07 14:57:14,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:14,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 90 transitions. Stem has 10 letters. Loop has 6 letters. [2019-12-07 14:57:14,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:14,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 90 transitions. Stem has 4 letters. Loop has 12 letters. [2019-12-07 14:57:14,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:14,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 288 states and 419 transitions. [2019-12-07 14:57:14,385 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 79 [2019-12-07 14:57:14,387 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 288 states to 211 states and 320 transitions. [2019-12-07 14:57:14,387 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 153 [2019-12-07 14:57:14,388 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2019-12-07 14:57:14,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 320 transitions. [2019-12-07 14:57:14,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:14,388 INFO L688 BuchiCegarLoop]: Abstraction has 211 states and 320 transitions. [2019-12-07 14:57:14,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 320 transitions. [2019-12-07 14:57:14,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 122. [2019-12-07 14:57:14,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-12-07 14:57:14,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 181 transitions. [2019-12-07 14:57:14,396 INFO L711 BuchiCegarLoop]: Abstraction has 122 states and 181 transitions. [2019-12-07 14:57:14,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:57:14,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:57:14,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:57:14,397 INFO L87 Difference]: Start difference. First operand 122 states and 181 transitions. Second operand 3 states. [2019-12-07 14:57:14,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:57:14,435 INFO L93 Difference]: Finished difference Result 76 states and 111 transitions. [2019-12-07 14:57:14,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:57:14,436 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 111 transitions. [2019-12-07 14:57:14,436 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2019-12-07 14:57:14,437 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 74 states and 109 transitions. [2019-12-07 14:57:14,437 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2019-12-07 14:57:14,438 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2019-12-07 14:57:14,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 109 transitions. [2019-12-07 14:57:14,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:14,438 INFO L688 BuchiCegarLoop]: Abstraction has 74 states and 109 transitions. [2019-12-07 14:57:14,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 109 transitions. [2019-12-07 14:57:14,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2019-12-07 14:57:14,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-12-07 14:57:14,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 109 transitions. [2019-12-07 14:57:14,441 INFO L711 BuchiCegarLoop]: Abstraction has 74 states and 109 transitions. [2019-12-07 14:57:14,441 INFO L591 BuchiCegarLoop]: Abstraction has 74 states and 109 transitions. [2019-12-07 14:57:14,441 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 14:57:14,442 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 109 transitions. [2019-12-07 14:57:14,442 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2019-12-07 14:57:14,442 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:14,442 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:14,443 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:14,443 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 14:57:14,443 INFO L794 eck$LassoCheckResult]: Stem: 1040#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 1041#L176 assume !false; 1059#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1057#L29 assume 8466 == main_~s__state~0; 1056#L30 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 1; 1053#L78-1 main_~s__state~0 := 8496; 1051#L176 assume !false; 1049#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1046#L29 assume !(8466 == main_~s__state~0); 1044#L32 assume !(8496 == main_~s__state~0); 1013#L36 [2019-12-07 14:57:14,443 INFO L796 eck$LassoCheckResult]: Loop: 1013#L36 assume 8512 == main_~s__state~0; 1028#L37 main_~s__state~0 := 8528; 995#L176 assume !false; 1050#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1047#L29 assume !(8466 == main_~s__state~0); 1045#L32 assume !(8496 == main_~s__state~0); 1013#L36 [2019-12-07 14:57:14,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:14,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1381923845, now seen corresponding path program 1 times [2019-12-07 14:57:14,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:14,444 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777739092] [2019-12-07 14:57:14,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:14,458 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:57:14,458 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777739092] [2019-12-07 14:57:14,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:14,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:57:14,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423003194] [2019-12-07 14:57:14,458 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 14:57:14,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:14,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1779937937, now seen corresponding path program 1 times [2019-12-07 14:57:14,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:14,459 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134938863] [2019-12-07 14:57:14,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:14,464 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:14,475 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:57:14,475 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:57:14,475 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:57:14,475 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:57:14,475 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 14:57:14,475 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,475 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:57:14,475 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:57:14,475 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration3_Loop [2019-12-07 14:57:14,476 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:57:14,476 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:57:14,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:14,489 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:57:14,489 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:57:14,492 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,499 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 14:57:14,499 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:57:14,503 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 14:57:14,504 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:57:14,504 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:57:14,504 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:57:14,504 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:57:14,505 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:57:14,505 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,505 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:57:14,505 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:57:14,505 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration3_Loop [2019-12-07 14:57:14,505 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:57:14,505 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:57:14,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:14,520 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:57:14,520 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,526 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:57:14,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:57:14,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:57:14,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:57:14,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:57:14,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:57:14,529 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:57:14,529 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:57:14,531 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:57:14,534 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 14:57:14,534 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,537 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:57:14,537 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 14:57:14,537 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:57:14,537 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0) = -1*ULTIMATE.start_main_~s__state~0 + 8520 Supporting invariants [] [2019-12-07 14:57:14,539 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 14:57:14,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:14,559 INFO L264 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:57:14,560 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:57:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:14,562 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:57:14,563 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:57:14,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:57:14,574 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 14:57:14,575 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 109 transitions. cyclomatic complexity: 39 Second operand 4 states. [2019-12-07 14:57:14,698 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 109 transitions. cyclomatic complexity: 39. Second operand 4 states. Result 232 states and 347 transitions. Complement of second has 9 states. [2019-12-07 14:57:14,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 14:57:14,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:57:14,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2019-12-07 14:57:14,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 129 transitions. Stem has 10 letters. Loop has 6 letters. [2019-12-07 14:57:14,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:14,700 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 129 transitions. Stem has 16 letters. Loop has 6 letters. [2019-12-07 14:57:14,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:14,700 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 129 transitions. Stem has 10 letters. Loop has 12 letters. [2019-12-07 14:57:14,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:14,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 232 states and 347 transitions. [2019-12-07 14:57:14,703 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 62 [2019-12-07 14:57:14,704 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 232 states to 182 states and 281 transitions. [2019-12-07 14:57:14,704 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 102 [2019-12-07 14:57:14,705 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 138 [2019-12-07 14:57:14,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 281 transitions. [2019-12-07 14:57:14,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:14,705 INFO L688 BuchiCegarLoop]: Abstraction has 182 states and 281 transitions. [2019-12-07 14:57:14,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 281 transitions. [2019-12-07 14:57:14,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 102. [2019-12-07 14:57:14,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-12-07 14:57:14,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 152 transitions. [2019-12-07 14:57:14,709 INFO L711 BuchiCegarLoop]: Abstraction has 102 states and 152 transitions. [2019-12-07 14:57:14,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:57:14,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:57:14,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:57:14,710 INFO L87 Difference]: Start difference. First operand 102 states and 152 transitions. Second operand 3 states. [2019-12-07 14:57:14,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:57:14,740 INFO L93 Difference]: Finished difference Result 113 states and 157 transitions. [2019-12-07 14:57:14,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:57:14,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 157 transitions. [2019-12-07 14:57:14,741 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2019-12-07 14:57:14,742 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 106 states and 149 transitions. [2019-12-07 14:57:14,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 70 [2019-12-07 14:57:14,742 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 75 [2019-12-07 14:57:14,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 106 states and 149 transitions. [2019-12-07 14:57:14,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:14,743 INFO L688 BuchiCegarLoop]: Abstraction has 106 states and 149 transitions. [2019-12-07 14:57:14,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states and 149 transitions. [2019-12-07 14:57:14,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2019-12-07 14:57:14,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-12-07 14:57:14,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2019-12-07 14:57:14,746 INFO L711 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2019-12-07 14:57:14,746 INFO L591 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2019-12-07 14:57:14,746 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 14:57:14,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 147 transitions. [2019-12-07 14:57:14,747 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2019-12-07 14:57:14,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:14,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:14,747 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:14,748 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:14,748 INFO L794 eck$LassoCheckResult]: Stem: 1644#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 1645#L176 assume !false; 1680#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1678#L29 assume 8466 == main_~s__state~0; 1677#L30 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 1; 1676#L78-1 main_~s__state~0 := 8496; 1674#L176 assume !false; 1671#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1669#L29 assume !(8466 == main_~s__state~0); 1667#L32 assume 8496 == main_~s__state~0; 1665#L33 assume !(1 == main_~blastFlag~0); 1664#L85-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8512; 1661#L176 assume !false; 1659#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1657#L29 assume !(8466 == main_~s__state~0); 1655#L32 assume !(8496 == main_~s__state~0); 1653#L36 assume !(8512 == main_~s__state~0); 1602#L40 [2019-12-07 14:57:14,748 INFO L796 eck$LassoCheckResult]: Loop: 1602#L40 assume 8528 == main_~s__state~0; 1603#L41 main_~s__state~0 := 8544; 1592#L176 assume !false; 1651#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1649#L29 assume !(8466 == main_~s__state~0); 1647#L32 assume !(8496 == main_~s__state~0); 1646#L36 assume !(8512 == main_~s__state~0); 1602#L40 [2019-12-07 14:57:14,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:14,748 INFO L82 PathProgramCache]: Analyzing trace with hash 905234773, now seen corresponding path program 1 times [2019-12-07 14:57:14,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:14,749 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396256827] [2019-12-07 14:57:14,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:14,764 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:57:14,764 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396256827] [2019-12-07 14:57:14,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:14,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:57:14,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023972787] [2019-12-07 14:57:14,765 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 14:57:14,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:14,765 INFO L82 PathProgramCache]: Analyzing trace with hash -456689360, now seen corresponding path program 1 times [2019-12-07 14:57:14,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:14,765 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382034869] [2019-12-07 14:57:14,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:14,769 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:14,779 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:57:14,779 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:57:14,779 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:57:14,779 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:57:14,780 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 14:57:14,780 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,780 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:57:14,780 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:57:14,780 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration4_Loop [2019-12-07 14:57:14,780 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:57:14,780 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:57:14,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:14,792 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:57:14,792 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,795 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:57:14,795 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 14:57:14,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:57:14,806 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 14:57:14,807 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:57:14,807 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:57:14,807 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:57:14,807 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:57:14,807 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:57:14,807 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,808 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:57:14,808 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:57:14,808 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration4_Loop [2019-12-07 14:57:14,808 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:57:14,808 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:57:14,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:14,820 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:57:14,820 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,823 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:57:14,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:57:14,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:57:14,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:57:14,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:57:14,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:57:14,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:57:14,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:57:14,827 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:57:14,829 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 14:57:14,829 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:14,831 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:57:14,831 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 14:57:14,831 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:57:14,832 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0) = -1*ULTIMATE.start_main_~s__state~0 + 8536 Supporting invariants [] [2019-12-07 14:57:14,833 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 14:57:14,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:14,847 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:57:14,847 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:57:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:14,850 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:57:14,851 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:57:14,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:57:14,861 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 14:57:14,861 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 104 states and 147 transitions. cyclomatic complexity: 47 Second operand 4 states. [2019-12-07 14:57:14,972 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 104 states and 147 transitions. cyclomatic complexity: 47. Second operand 4 states. Result 271 states and 397 transitions. Complement of second has 9 states. [2019-12-07 14:57:14,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 14:57:14,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:57:14,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 134 transitions. [2019-12-07 14:57:14,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 134 transitions. Stem has 17 letters. Loop has 7 letters. [2019-12-07 14:57:14,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:14,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 134 transitions. Stem has 24 letters. Loop has 7 letters. [2019-12-07 14:57:14,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:14,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 134 transitions. Stem has 17 letters. Loop has 14 letters. [2019-12-07 14:57:14,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:14,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 271 states and 397 transitions. [2019-12-07 14:57:14,976 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 80 [2019-12-07 14:57:14,977 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 271 states to 225 states and 335 transitions. [2019-12-07 14:57:14,977 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 129 [2019-12-07 14:57:14,978 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 162 [2019-12-07 14:57:14,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 225 states and 335 transitions. [2019-12-07 14:57:14,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:14,978 INFO L688 BuchiCegarLoop]: Abstraction has 225 states and 335 transitions. [2019-12-07 14:57:14,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states and 335 transitions. [2019-12-07 14:57:14,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 146. [2019-12-07 14:57:14,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-12-07 14:57:14,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 208 transitions. [2019-12-07 14:57:14,981 INFO L711 BuchiCegarLoop]: Abstraction has 146 states and 208 transitions. [2019-12-07 14:57:14,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:57:14,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:57:14,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:57:14,982 INFO L87 Difference]: Start difference. First operand 146 states and 208 transitions. Second operand 3 states. [2019-12-07 14:57:14,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:57:14,993 INFO L93 Difference]: Finished difference Result 182 states and 244 transitions. [2019-12-07 14:57:14,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:57:14,994 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 244 transitions. [2019-12-07 14:57:14,994 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2019-12-07 14:57:14,996 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 182 states and 244 transitions. [2019-12-07 14:57:14,996 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 112 [2019-12-07 14:57:14,996 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 112 [2019-12-07 14:57:14,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 244 transitions. [2019-12-07 14:57:14,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:14,996 INFO L688 BuchiCegarLoop]: Abstraction has 182 states and 244 transitions. [2019-12-07 14:57:14,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 244 transitions. [2019-12-07 14:57:14,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2019-12-07 14:57:14,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-12-07 14:57:14,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 244 transitions. [2019-12-07 14:57:14,999 INFO L711 BuchiCegarLoop]: Abstraction has 182 states and 244 transitions. [2019-12-07 14:57:14,999 INFO L591 BuchiCegarLoop]: Abstraction has 182 states and 244 transitions. [2019-12-07 14:57:14,999 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 14:57:14,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 182 states and 244 transitions. [2019-12-07 14:57:15,000 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2019-12-07 14:57:15,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:15,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:15,000 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:15,000 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:15,001 INFO L794 eck$LassoCheckResult]: Stem: 2455#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 2456#L176 assume !false; 2569#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 2567#L29 assume 8466 == main_~s__state~0; 2549#L30 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 1; 2548#L78-1 main_~s__state~0 := 8496; 2547#L176 assume !false; 2544#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 2541#L29 assume !(8466 == main_~s__state~0); 2537#L32 assume 8496 == main_~s__state~0; 2415#L33 assume 1 == main_~blastFlag~0;main_~blastFlag~0 := 2; 2451#L85-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8512; 2452#L176 assume !false; 2533#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 2530#L29 assume !(8466 == main_~s__state~0); 2529#L32 assume !(8496 == main_~s__state~0); 2527#L36 assume !(8512 == main_~s__state~0); 2459#L40 assume !(8528 == main_~s__state~0); 2406#L44 [2019-12-07 14:57:15,001 INFO L796 eck$LassoCheckResult]: Loop: 2406#L44 assume 8544 == main_~s__state~0; 2424#L45 assume !(0 != 1 + main_~s__verify_mode~0);main_~s__state~0 := 8560; 2395#L176 assume !false; 2472#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 2468#L29 assume !(8466 == main_~s__state~0); 2464#L32 assume !(8496 == main_~s__state~0); 2460#L36 assume !(8512 == main_~s__state~0); 2458#L40 assume !(8528 == main_~s__state~0); 2406#L44 [2019-12-07 14:57:15,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:15,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1193146448, now seen corresponding path program 1 times [2019-12-07 14:57:15,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:15,001 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051536422] [2019-12-07 14:57:15,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:15,013 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 14:57:15,014 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051536422] [2019-12-07 14:57:15,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:15,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:57:15,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076101722] [2019-12-07 14:57:15,014 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 14:57:15,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:15,014 INFO L82 PathProgramCache]: Analyzing trace with hash 594459181, now seen corresponding path program 1 times [2019-12-07 14:57:15,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:15,015 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235906324] [2019-12-07 14:57:15,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:15,019 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:15,033 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:57:15,033 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:57:15,033 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:57:15,033 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:57:15,033 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 14:57:15,033 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,033 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:57:15,033 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:57:15,033 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration5_Loop [2019-12-07 14:57:15,033 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:57:15,033 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:57:15,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:15,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:15,052 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:57:15,052 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,055 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:57:15,055 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:57:15,058 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 14:57:15,058 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~s__verify_mode~0=-1} Honda state: {ULTIMATE.start_main_~s__verify_mode~0=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:57:15,062 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,070 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 14:57:15,070 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:57:15,075 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 14:57:15,077 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:57:15,077 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:57:15,077 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:57:15,077 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:57:15,077 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:57:15,077 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,077 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:57:15,077 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:57:15,077 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration5_Loop [2019-12-07 14:57:15,077 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:57:15,078 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:57:15,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:15,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:15,101 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:57:15,101 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:57:15,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:57:15,105 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:57:15,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:57:15,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:57:15,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:57:15,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:57:15,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:57:15,107 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,111 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:57:15,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:57:15,113 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:57:15,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:57:15,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:57:15,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:57:15,114 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:57:15,114 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:57:15,115 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:57:15,117 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 14:57:15,117 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,120 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:57:15,120 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 14:57:15,120 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:57:15,120 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0) = -1*ULTIMATE.start_main_~s__state~0 + 8552 Supporting invariants [] [2019-12-07 14:57:15,121 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 14:57:15,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:15,135 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:57:15,135 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:57:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:15,139 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:57:15,139 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:57:15,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:57:15,155 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 14:57:15,155 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 182 states and 244 transitions. cyclomatic complexity: 68 Second operand 4 states. [2019-12-07 14:57:15,286 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 182 states and 244 transitions. cyclomatic complexity: 68. Second operand 4 states. Result 363 states and 509 transitions. Complement of second has 9 states. [2019-12-07 14:57:15,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 14:57:15,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:57:15,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2019-12-07 14:57:15,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 141 transitions. Stem has 18 letters. Loop has 8 letters. [2019-12-07 14:57:15,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:15,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 141 transitions. Stem has 26 letters. Loop has 8 letters. [2019-12-07 14:57:15,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:15,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 141 transitions. Stem has 18 letters. Loop has 16 letters. [2019-12-07 14:57:15,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:15,288 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 363 states and 509 transitions. [2019-12-07 14:57:15,291 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 123 [2019-12-07 14:57:15,293 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 363 states to 321 states and 451 transitions. [2019-12-07 14:57:15,294 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 172 [2019-12-07 14:57:15,294 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 201 [2019-12-07 14:57:15,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 321 states and 451 transitions. [2019-12-07 14:57:15,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:15,294 INFO L688 BuchiCegarLoop]: Abstraction has 321 states and 451 transitions. [2019-12-07 14:57:15,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states and 451 transitions. [2019-12-07 14:57:15,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 247. [2019-12-07 14:57:15,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2019-12-07 14:57:15,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 337 transitions. [2019-12-07 14:57:15,300 INFO L711 BuchiCegarLoop]: Abstraction has 247 states and 337 transitions. [2019-12-07 14:57:15,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:57:15,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:57:15,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:57:15,301 INFO L87 Difference]: Start difference. First operand 247 states and 337 transitions. Second operand 3 states. [2019-12-07 14:57:15,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:57:15,337 INFO L93 Difference]: Finished difference Result 281 states and 366 transitions. [2019-12-07 14:57:15,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:57:15,337 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 281 states and 366 transitions. [2019-12-07 14:57:15,339 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 108 [2019-12-07 14:57:15,340 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 281 states to 260 states and 342 transitions. [2019-12-07 14:57:15,340 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 143 [2019-12-07 14:57:15,340 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 144 [2019-12-07 14:57:15,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 260 states and 342 transitions. [2019-12-07 14:57:15,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:15,340 INFO L688 BuchiCegarLoop]: Abstraction has 260 states and 342 transitions. [2019-12-07 14:57:15,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states and 342 transitions. [2019-12-07 14:57:15,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 258. [2019-12-07 14:57:15,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-12-07 14:57:15,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 340 transitions. [2019-12-07 14:57:15,344 INFO L711 BuchiCegarLoop]: Abstraction has 258 states and 340 transitions. [2019-12-07 14:57:15,344 INFO L591 BuchiCegarLoop]: Abstraction has 258 states and 340 transitions. [2019-12-07 14:57:15,344 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 14:57:15,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 258 states and 340 transitions. [2019-12-07 14:57:15,345 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 107 [2019-12-07 14:57:15,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:15,345 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:15,346 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:15,346 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:15,346 INFO L794 eck$LassoCheckResult]: Stem: 3639#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 3640#L176 assume !false; 3764#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 3762#L29 assume 8466 == main_~s__state~0; 3761#L30 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 1; 3760#L78-1 main_~s__state~0 := 8496; 3759#L176 assume !false; 3754#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 3748#L29 assume !(8466 == main_~s__state~0); 3737#L32 assume 8496 == main_~s__state~0; 3716#L33 assume 1 == main_~blastFlag~0;main_~blastFlag~0 := 2; 3712#L85-1 assume 0 != main_~s__hit~0;main_~s__state~0 := 8656; 3709#L176 assume !false; 3707#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 3705#L29 assume !(8466 == main_~s__state~0); 3703#L32 assume !(8496 == main_~s__state~0); 3701#L36 assume !(8512 == main_~s__state~0); 3697#L40 assume !(8528 == main_~s__state~0); 3652#L44 assume !(8544 == main_~s__state~0); 3619#L48 [2019-12-07 14:57:15,346 INFO L796 eck$LassoCheckResult]: Loop: 3619#L48 assume 8560 == main_~s__state~0; 3573#L49 main_~s__state~0 := 8576; 3574#L176 assume !false; 3662#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 3658#L29 assume !(8466 == main_~s__state~0); 3655#L32 assume !(8496 == main_~s__state~0); 3650#L36 assume !(8512 == main_~s__state~0); 3648#L40 assume !(8528 == main_~s__state~0); 3647#L44 assume !(8544 == main_~s__state~0); 3619#L48 [2019-12-07 14:57:15,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:15,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1818454854, now seen corresponding path program 1 times [2019-12-07 14:57:15,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:15,346 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825141728] [2019-12-07 14:57:15,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:15,358 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:15,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:15,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1734491453, now seen corresponding path program 1 times [2019-12-07 14:57:15,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:15,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702164264] [2019-12-07 14:57:15,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:15,364 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:15,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:15,364 INFO L82 PathProgramCache]: Analyzing trace with hash 566159524, now seen corresponding path program 1 times [2019-12-07 14:57:15,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:15,365 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881825712] [2019-12-07 14:57:15,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:15,385 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 14:57:15,386 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881825712] [2019-12-07 14:57:15,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:15,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:57:15,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424694613] [2019-12-07 14:57:15,400 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:57:15,400 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:57:15,401 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:57:15,401 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:57:15,401 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 14:57:15,401 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,401 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:57:15,401 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:57:15,401 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration6_Loop [2019-12-07 14:57:15,401 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:57:15,401 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:57:15,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:15,414 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:57:15,414 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,417 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:57:15,417 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,424 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 14:57:15,424 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:57:15,428 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 14:57:15,429 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:57:15,429 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:57:15,429 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:57:15,429 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:57:15,429 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:57:15,429 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,429 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:57:15,429 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:57:15,429 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration6_Loop [2019-12-07 14:57:15,429 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:57:15,430 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:57:15,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:15,442 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:57:15,442 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:57:15,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:57:15,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:57:15,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:57:15,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:57:15,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:57:15,448 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:57:15,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:57:15,450 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:57:15,452 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 14:57:15,452 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,455 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:57:15,455 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 14:57:15,455 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:57:15,455 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0) = -1*ULTIMATE.start_main_~s__state~0 + 8568 Supporting invariants [] [2019-12-07 14:57:15,457 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 14:57:15,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:15,472 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:57:15,473 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:57:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:15,476 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:57:15,477 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:57:15,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:57:15,487 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 14:57:15,487 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 258 states and 340 transitions. cyclomatic complexity: 89 Second operand 4 states. [2019-12-07 14:57:15,612 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 258 states and 340 transitions. cyclomatic complexity: 89. Second operand 4 states. Result 460 states and 639 transitions. Complement of second has 9 states. [2019-12-07 14:57:15,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 14:57:15,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:57:15,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2019-12-07 14:57:15,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 166 transitions. Stem has 19 letters. Loop has 9 letters. [2019-12-07 14:57:15,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:15,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 166 transitions. Stem has 28 letters. Loop has 9 letters. [2019-12-07 14:57:15,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:15,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 166 transitions. Stem has 19 letters. Loop has 18 letters. [2019-12-07 14:57:15,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:15,614 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 460 states and 639 transitions. [2019-12-07 14:57:15,616 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 159 [2019-12-07 14:57:15,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 460 states to 425 states and 589 transitions. [2019-12-07 14:57:15,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2019-12-07 14:57:15,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 245 [2019-12-07 14:57:15,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 425 states and 589 transitions. [2019-12-07 14:57:15,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:15,619 INFO L688 BuchiCegarLoop]: Abstraction has 425 states and 589 transitions. [2019-12-07 14:57:15,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states and 589 transitions. [2019-12-07 14:57:15,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 343. [2019-12-07 14:57:15,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-12-07 14:57:15,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 460 transitions. [2019-12-07 14:57:15,624 INFO L711 BuchiCegarLoop]: Abstraction has 343 states and 460 transitions. [2019-12-07 14:57:15,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:57:15,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:57:15,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:57:15,624 INFO L87 Difference]: Start difference. First operand 343 states and 460 transitions. Second operand 3 states. [2019-12-07 14:57:15,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:57:15,663 INFO L93 Difference]: Finished difference Result 397 states and 510 transitions. [2019-12-07 14:57:15,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:57:15,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 397 states and 510 transitions. [2019-12-07 14:57:15,665 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 154 [2019-12-07 14:57:15,667 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 397 states to 372 states and 485 transitions. [2019-12-07 14:57:15,667 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 223 [2019-12-07 14:57:15,668 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 230 [2019-12-07 14:57:15,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 372 states and 485 transitions. [2019-12-07 14:57:15,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:15,668 INFO L688 BuchiCegarLoop]: Abstraction has 372 states and 485 transitions. [2019-12-07 14:57:15,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states and 485 transitions. [2019-12-07 14:57:15,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 336. [2019-12-07 14:57:15,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-12-07 14:57:15,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 448 transitions. [2019-12-07 14:57:15,672 INFO L711 BuchiCegarLoop]: Abstraction has 336 states and 448 transitions. [2019-12-07 14:57:15,672 INFO L591 BuchiCegarLoop]: Abstraction has 336 states and 448 transitions. [2019-12-07 14:57:15,672 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 14:57:15,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 336 states and 448 transitions. [2019-12-07 14:57:15,673 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 152 [2019-12-07 14:57:15,673 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:15,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:15,674 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:15,674 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:15,674 INFO L794 eck$LassoCheckResult]: Stem: 5214#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 5215#L176 assume !false; 5462#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 5459#L29 assume 8466 == main_~s__state~0; 5200#L30 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 1; 5201#L78-1 main_~s__state~0 := 8496; 5475#L176 assume !false; 5473#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 5471#L29 assume !(8466 == main_~s__state~0); 5469#L32 assume 8496 == main_~s__state~0; 5217#L33 assume 1 == main_~blastFlag~0;main_~blastFlag~0 := 2; 5209#L85-1 assume 0 != main_~s__hit~0;main_~s__state~0 := 8656; 5168#L176 [2019-12-07 14:57:15,674 INFO L796 eck$LassoCheckResult]: Loop: 5168#L176 assume !false; 5170#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 5153#L29 assume !(8466 == main_~s__state~0); 5154#L32 assume !(8496 == main_~s__state~0); 5164#L36 assume !(8512 == main_~s__state~0); 5157#L40 assume !(8528 == main_~s__state~0); 5158#L44 assume !(8544 == main_~s__state~0); 5191#L48 assume !(8560 == main_~s__state~0); 5192#L52 assume !(8576 == main_~s__state~0); 5185#L56 assume !(8592 == main_~s__state~0); 5149#L60 assume !(8608 == main_~s__state~0); 5150#L64 assume !(8640 == main_~s__state~0); 5216#L68 assume 8656 == main_~s__state~0; 5143#L69 assume 2 == main_~blastFlag~0;main_~blastFlag~0 := 3; 5144#L162-1 main_~s__state~0 := 8672; 5168#L176 [2019-12-07 14:57:15,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:15,675 INFO L82 PathProgramCache]: Analyzing trace with hash -883919713, now seen corresponding path program 1 times [2019-12-07 14:57:15,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:15,675 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207243679] [2019-12-07 14:57:15,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:15,683 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:15,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:15,684 INFO L82 PathProgramCache]: Analyzing trace with hash -15441655, now seen corresponding path program 1 times [2019-12-07 14:57:15,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:15,684 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787786942] [2019-12-07 14:57:15,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:15,691 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:15,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:15,692 INFO L82 PathProgramCache]: Analyzing trace with hash 2052349099, now seen corresponding path program 1 times [2019-12-07 14:57:15,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:15,692 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999347732] [2019-12-07 14:57:15,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:15,704 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:15,730 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:57:15,730 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:57:15,730 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:57:15,730 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:57:15,730 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 14:57:15,730 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,730 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:57:15,730 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:57:15,730 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration7_Loop [2019-12-07 14:57:15,730 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:57:15,730 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:57:15,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:15,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:15,755 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:57:15,755 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:57:15,758 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 14:57:15,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:57:15,769 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 14:57:15,770 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:57:15,770 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:57:15,770 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:57:15,770 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:57:15,771 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:57:15,771 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,771 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:57:15,771 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:57:15,771 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration7_Loop [2019-12-07 14:57:15,771 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:57:15,771 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:57:15,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:15,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:15,796 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:57:15,796 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,802 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:57:15,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:57:15,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:57:15,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:57:15,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:57:15,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:57:15,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:57:15,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:57:15,806 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:57:15,807 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 14:57:15,807 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:15,813 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:57:15,813 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 14:57:15,814 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:57:15,814 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0) = -1*ULTIMATE.start_main_~s__state~0 + 8664 Supporting invariants [] [2019-12-07 14:57:15,815 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 14:57:15,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:15,831 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:57:15,831 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:57:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:15,835 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:57:15,835 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:57:15,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:57:15,842 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 14:57:15,842 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 336 states and 448 transitions. cyclomatic complexity: 120 Second operand 4 states. [2019-12-07 14:57:15,873 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 336 states and 448 transitions. cyclomatic complexity: 120. Second operand 4 states. Result 442 states and 583 transitions. Complement of second has 7 states. [2019-12-07 14:57:15,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 14:57:15,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:57:15,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2019-12-07 14:57:15,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 12 letters. Loop has 15 letters. [2019-12-07 14:57:15,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:15,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 27 letters. Loop has 15 letters. [2019-12-07 14:57:15,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:15,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 12 letters. Loop has 30 letters. [2019-12-07 14:57:15,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:15,875 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 442 states and 583 transitions. [2019-12-07 14:57:15,876 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 220 [2019-12-07 14:57:15,879 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 442 states to 436 states and 575 transitions. [2019-12-07 14:57:15,879 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 278 [2019-12-07 14:57:15,879 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 279 [2019-12-07 14:57:15,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 436 states and 575 transitions. [2019-12-07 14:57:15,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:15,879 INFO L688 BuchiCegarLoop]: Abstraction has 436 states and 575 transitions. [2019-12-07 14:57:15,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states and 575 transitions. [2019-12-07 14:57:15,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 432. [2019-12-07 14:57:15,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2019-12-07 14:57:15,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 570 transitions. [2019-12-07 14:57:15,884 INFO L711 BuchiCegarLoop]: Abstraction has 432 states and 570 transitions. [2019-12-07 14:57:15,884 INFO L591 BuchiCegarLoop]: Abstraction has 432 states and 570 transitions. [2019-12-07 14:57:15,884 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-12-07 14:57:15,884 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 432 states and 570 transitions. [2019-12-07 14:57:15,885 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 220 [2019-12-07 14:57:15,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:15,885 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:15,886 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:15,886 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:15,886 INFO L794 eck$LassoCheckResult]: Stem: 6109#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 6110#L176 assume !false; 6303#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 6302#L29 assume 8466 == main_~s__state~0; 6301#L30 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 1; 6300#L78-1 main_~s__state~0 := 8496; 6256#L176 assume !false; 6253#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 6250#L29 assume !(8466 == main_~s__state~0); 6248#L32 assume 8496 == main_~s__state~0; 6246#L33 assume 1 == main_~blastFlag~0;main_~blastFlag~0 := 2; 6244#L85-1 assume 0 != main_~s__hit~0;main_~s__state~0 := 8656; 6104#L176 assume !false; 6247#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 6245#L29 assume !(8466 == main_~s__state~0); 6243#L32 assume !(8496 == main_~s__state~0); 6241#L36 assume !(8512 == main_~s__state~0); 6238#L40 assume !(8528 == main_~s__state~0); 6235#L44 assume !(8544 == main_~s__state~0); 6230#L48 assume !(8560 == main_~s__state~0); 6227#L52 assume !(8576 == main_~s__state~0); 6222#L56 assume !(8592 == main_~s__state~0); 6219#L60 assume !(8608 == main_~s__state~0); 6111#L64 assume !(8640 == main_~s__state~0); 6112#L68 assume !(8656 == main_~s__state~0); 6091#L72 [2019-12-07 14:57:15,886 INFO L796 eck$LassoCheckResult]: Loop: 6091#L72 assume 8672 == main_~s__state~0; 6050#L73 assume 4 == main_~blastFlag~0;main_~blastFlag~0 := 5; 6051#L169-1 assume 0 != main_~s__hit~0;main_~s__state~0 := 8640; 6032#L176 assume !false; 6335#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 6333#L29 assume !(8466 == main_~s__state~0); 6328#L32 assume !(8496 == main_~s__state~0); 6323#L36 assume !(8512 == main_~s__state~0); 6318#L40 assume !(8528 == main_~s__state~0); 6271#L44 assume !(8544 == main_~s__state~0); 6272#L48 assume !(8560 == main_~s__state~0); 6284#L52 assume !(8576 == main_~s__state~0); 6135#L56 assume !(8592 == main_~s__state~0); 6035#L60 assume !(8608 == main_~s__state~0); 6037#L64 assume !(8640 == main_~s__state~0); 6182#L68 assume !(8656 == main_~s__state~0); 6091#L72 [2019-12-07 14:57:15,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:15,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1204368937, now seen corresponding path program 1 times [2019-12-07 14:57:15,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:15,887 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023469878] [2019-12-07 14:57:15,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:15,900 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 14:57:15,900 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023469878] [2019-12-07 14:57:15,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:15,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:57:15,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472860935] [2019-12-07 14:57:15,900 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 14:57:15,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:15,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1774399381, now seen corresponding path program 1 times [2019-12-07 14:57:15,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:15,901 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764430953] [2019-12-07 14:57:15,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:15,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:57:15,909 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764430953] [2019-12-07 14:57:15,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:15,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:57:15,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989917989] [2019-12-07 14:57:15,910 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 14:57:15,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:57:15,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:57:15,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:57:15,910 INFO L87 Difference]: Start difference. First operand 432 states and 570 transitions. cyclomatic complexity: 148 Second operand 3 states. [2019-12-07 14:57:15,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:57:15,948 INFO L93 Difference]: Finished difference Result 409 states and 528 transitions. [2019-12-07 14:57:15,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:57:15,948 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 409 states and 528 transitions. [2019-12-07 14:57:15,950 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 194 [2019-12-07 14:57:15,952 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 409 states to 409 states and 528 transitions. [2019-12-07 14:57:15,952 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 252 [2019-12-07 14:57:15,952 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 252 [2019-12-07 14:57:15,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 409 states and 528 transitions. [2019-12-07 14:57:15,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:15,952 INFO L688 BuchiCegarLoop]: Abstraction has 409 states and 528 transitions. [2019-12-07 14:57:15,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states and 528 transitions. [2019-12-07 14:57:15,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 376. [2019-12-07 14:57:15,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2019-12-07 14:57:15,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 491 transitions. [2019-12-07 14:57:15,956 INFO L711 BuchiCegarLoop]: Abstraction has 376 states and 491 transitions. [2019-12-07 14:57:15,956 INFO L591 BuchiCegarLoop]: Abstraction has 376 states and 491 transitions. [2019-12-07 14:57:15,956 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-12-07 14:57:15,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 376 states and 491 transitions. [2019-12-07 14:57:15,958 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 161 [2019-12-07 14:57:15,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:15,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:15,958 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:15,958 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:15,959 INFO L794 eck$LassoCheckResult]: Stem: 6955#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 6956#L176 assume !false; 7168#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 7148#L29 assume 8466 == main_~s__state~0; 7147#L30 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 1; 7146#L78-1 main_~s__state~0 := 8496; 7145#L176 assume !false; 7144#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 7143#L29 assume !(8466 == main_~s__state~0); 7141#L32 assume 8496 == main_~s__state~0; 7139#L33 assume 1 == main_~blastFlag~0;main_~blastFlag~0 := 2; 7136#L85-1 assume 0 != main_~s__hit~0;main_~s__state~0 := 8656; 6953#L176 assume !false; 7134#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 7243#L29 assume !(8466 == main_~s__state~0); 7242#L32 assume !(8496 == main_~s__state~0); 7241#L36 assume !(8512 == main_~s__state~0); 7240#L40 assume !(8528 == main_~s__state~0); 7239#L44 assume !(8544 == main_~s__state~0); 7237#L48 assume !(8560 == main_~s__state~0); 7235#L52 assume !(8576 == main_~s__state~0); 7234#L56 assume !(8592 == main_~s__state~0); 7233#L60 assume !(8608 == main_~s__state~0); 6957#L64 assume !(8640 == main_~s__state~0); 6958#L68 assume !(8656 == main_~s__state~0); 6940#L72 [2019-12-07 14:57:15,959 INFO L796 eck$LassoCheckResult]: Loop: 6940#L72 assume 8672 == main_~s__state~0; 6897#L73 assume 4 == main_~blastFlag~0;main_~blastFlag~0 := 5; 6898#L169-1 assume 0 != main_~s__hit~0;main_~s__state~0 := 8640; 6928#L176 assume !false; 6907#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 6889#L29 assume !(8466 == main_~s__state~0); 6890#L32 assume !(8496 == main_~s__state~0); 7248#L36 assume !(8512 == main_~s__state~0); 7247#L40 assume !(8528 == main_~s__state~0); 7246#L44 assume !(8544 == main_~s__state~0); 6930#L48 assume !(8560 == main_~s__state~0); 6931#L52 assume !(8576 == main_~s__state~0); 6919#L56 assume !(8592 == main_~s__state~0); 6920#L60 assume !(8608 == main_~s__state~0); 7149#L64 assume 8640 == main_~s__state~0; 6906#L65 assume 3 == main_~blastFlag~0;main_~blastFlag~0 := 4; 6903#L151-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8656; 6904#L176 assume !false; 7250#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 7249#L29 assume !(8466 == main_~s__state~0); 6900#L32 assume !(8496 == main_~s__state~0); 6901#L36 assume !(8512 == main_~s__state~0); 6893#L40 assume !(8528 == main_~s__state~0); 6894#L44 assume !(8544 == main_~s__state~0); 6962#L48 assume !(8560 == main_~s__state~0); 7245#L52 assume !(8576 == main_~s__state~0); 7244#L56 assume !(8592 == main_~s__state~0); 6883#L60 assume !(8608 == main_~s__state~0); 6884#L64 assume !(8640 == main_~s__state~0); 7232#L68 assume !(8656 == main_~s__state~0); 6940#L72 [2019-12-07 14:57:15,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:15,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1204368937, now seen corresponding path program 2 times [2019-12-07 14:57:15,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:15,959 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395161667] [2019-12-07 14:57:15,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:15,970 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 14:57:15,970 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395161667] [2019-12-07 14:57:15,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:15,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:57:15,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952998124] [2019-12-07 14:57:15,971 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 14:57:15,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:15,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1325834225, now seen corresponding path program 1 times [2019-12-07 14:57:15,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:15,971 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232023586] [2019-12-07 14:57:15,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:15,981 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:57:15,981 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232023586] [2019-12-07 14:57:15,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:15,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:57:15,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430620925] [2019-12-07 14:57:15,982 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 14:57:15,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:57:15,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:57:15,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:57:15,982 INFO L87 Difference]: Start difference. First operand 376 states and 491 transitions. cyclomatic complexity: 125 Second operand 3 states. [2019-12-07 14:57:16,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:57:16,014 INFO L93 Difference]: Finished difference Result 413 states and 527 transitions. [2019-12-07 14:57:16,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:57:16,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 413 states and 527 transitions. [2019-12-07 14:57:16,016 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 174 [2019-12-07 14:57:16,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 413 states to 401 states and 515 transitions. [2019-12-07 14:57:16,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 232 [2019-12-07 14:57:16,018 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 232 [2019-12-07 14:57:16,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 401 states and 515 transitions. [2019-12-07 14:57:16,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:16,019 INFO L688 BuchiCegarLoop]: Abstraction has 401 states and 515 transitions. [2019-12-07 14:57:16,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states and 515 transitions. [2019-12-07 14:57:16,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 389. [2019-12-07 14:57:16,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-12-07 14:57:16,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 503 transitions. [2019-12-07 14:57:16,023 INFO L711 BuchiCegarLoop]: Abstraction has 389 states and 503 transitions. [2019-12-07 14:57:16,023 INFO L591 BuchiCegarLoop]: Abstraction has 389 states and 503 transitions. [2019-12-07 14:57:16,023 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-12-07 14:57:16,023 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 389 states and 503 transitions. [2019-12-07 14:57:16,024 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 174 [2019-12-07 14:57:16,024 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:16,024 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:16,025 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:16,025 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:16,025 INFO L794 eck$LassoCheckResult]: Stem: 7754#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 7755#L176 assume !false; 7966#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 7965#L29 assume 8466 == main_~s__state~0; 7964#L30 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 1; 7963#L78-1 main_~s__state~0 := 8496; 7962#L176 assume !false; 7961#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 7960#L29 assume !(8466 == main_~s__state~0); 7959#L32 assume 8496 == main_~s__state~0; 7957#L33 assume 1 == main_~blastFlag~0;main_~blastFlag~0 := 2; 7955#L85-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8512; 7953#L176 assume !false; 7951#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 7949#L29 assume !(8466 == main_~s__state~0); 7948#L32 assume !(8496 == main_~s__state~0); 7935#L36 assume 8512 == main_~s__state~0; 7724#L37 main_~s__state~0 := 8528; 7725#L176 assume !false; 7703#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 7704#L29 assume !(8466 == main_~s__state~0); 8047#L32 assume !(8496 == main_~s__state~0); 7720#L36 assume !(8512 == main_~s__state~0); 7721#L40 assume !(8528 == main_~s__state~0); 7972#L44 assume !(8544 == main_~s__state~0); 7764#L48 assume !(8560 == main_~s__state~0); 7765#L52 [2019-12-07 14:57:16,025 INFO L796 eck$LassoCheckResult]: Loop: 7765#L52 assume !(8576 == main_~s__state~0); 7767#L56 assume 8592 == main_~s__state~0; 7762#L57 main_~s__state~0 := 8608; 7676#L176 assume !false; 7877#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 7874#L29 assume !(8466 == main_~s__state~0); 7871#L32 assume !(8496 == main_~s__state~0); 7868#L36 assume !(8512 == main_~s__state~0); 7865#L40 assume !(8528 == main_~s__state~0); 7862#L44 assume !(8544 == main_~s__state~0); 7860#L48 assume !(8560 == main_~s__state~0); 7765#L52 [2019-12-07 14:57:16,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1695835077, now seen corresponding path program 1 times [2019-12-07 14:57:16,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,025 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057821159] [2019-12-07 14:57:16,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:16,035 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-12-07 14:57:16,035 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057821159] [2019-12-07 14:57:16,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:16,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:57:16,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185705311] [2019-12-07 14:57:16,035 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 14:57:16,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1642596384, now seen corresponding path program 1 times [2019-12-07 14:57:16,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,036 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544553434] [2019-12-07 14:57:16,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:16,039 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:16,051 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:57:16,052 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:57:16,052 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:57:16,052 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:57:16,052 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 14:57:16,052 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:16,052 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:57:16,052 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:57:16,052 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration10_Loop [2019-12-07 14:57:16,052 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:57:16,052 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:57:16,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:16,065 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:57:16,065 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:16,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 14:57:16,068 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:16,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 14:57:16,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 14:57:16,078 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 14:57:16,079 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:57:16,079 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:57:16,079 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:57:16,079 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:57:16,079 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:57:16,079 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:16,080 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:57:16,080 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:57:16,080 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration10_Loop [2019-12-07 14:57:16,080 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:57:16,080 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:57:16,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:57:16,093 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:57:16,094 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:16,096 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:57:16,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:57:16,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:57:16,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:57:16,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:57:16,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:57:16,098 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:57:16,098 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:57:16,100 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:57:16,102 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 14:57:16,102 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:57:16,105 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:57:16,105 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 14:57:16,105 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:57:16,105 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0) = -1*ULTIMATE.start_main_~s__state~0 + 8600 Supporting invariants [] [2019-12-07 14:57:16,106 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 14:57:16,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:16,121 INFO L264 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:57:16,122 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:57:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:16,126 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:57:16,126 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:57:16,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:57:16,138 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 14:57:16,138 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 389 states and 503 transitions. cyclomatic complexity: 124 Second operand 5 states. [2019-12-07 14:57:16,243 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 389 states and 503 transitions. cyclomatic complexity: 124. Second operand 5 states. Result 596 states and 801 transitions. Complement of second has 9 states. [2019-12-07 14:57:16,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 14:57:16,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 14:57:16,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 175 transitions. [2019-12-07 14:57:16,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 175 transitions. Stem has 26 letters. Loop has 11 letters. [2019-12-07 14:57:16,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:16,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 175 transitions. Stem has 37 letters. Loop has 11 letters. [2019-12-07 14:57:16,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:16,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 175 transitions. Stem has 26 letters. Loop has 22 letters. [2019-12-07 14:57:16,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:57:16,244 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 596 states and 801 transitions. [2019-12-07 14:57:16,247 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 197 [2019-12-07 14:57:16,249 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 596 states to 553 states and 744 transitions. [2019-12-07 14:57:16,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 273 [2019-12-07 14:57:16,250 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 293 [2019-12-07 14:57:16,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 553 states and 744 transitions. [2019-12-07 14:57:16,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:16,250 INFO L688 BuchiCegarLoop]: Abstraction has 553 states and 744 transitions. [2019-12-07 14:57:16,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states and 744 transitions. [2019-12-07 14:57:16,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 452. [2019-12-07 14:57:16,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2019-12-07 14:57:16,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 598 transitions. [2019-12-07 14:57:16,255 INFO L711 BuchiCegarLoop]: Abstraction has 452 states and 598 transitions. [2019-12-07 14:57:16,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:57:16,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:57:16,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:57:16,256 INFO L87 Difference]: Start difference. First operand 452 states and 598 transitions. Second operand 3 states. [2019-12-07 14:57:16,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:57:16,292 INFO L93 Difference]: Finished difference Result 471 states and 603 transitions. [2019-12-07 14:57:16,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:57:16,293 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 471 states and 603 transitions. [2019-12-07 14:57:16,295 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 166 [2019-12-07 14:57:16,298 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 471 states to 442 states and 570 transitions. [2019-12-07 14:57:16,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 234 [2019-12-07 14:57:16,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 236 [2019-12-07 14:57:16,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 442 states and 570 transitions. [2019-12-07 14:57:16,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:16,299 INFO L688 BuchiCegarLoop]: Abstraction has 442 states and 570 transitions. [2019-12-07 14:57:16,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states and 570 transitions. [2019-12-07 14:57:16,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 440. [2019-12-07 14:57:16,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2019-12-07 14:57:16,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 568 transitions. [2019-12-07 14:57:16,306 INFO L711 BuchiCegarLoop]: Abstraction has 440 states and 568 transitions. [2019-12-07 14:57:16,306 INFO L591 BuchiCegarLoop]: Abstraction has 440 states and 568 transitions. [2019-12-07 14:57:16,306 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2019-12-07 14:57:16,307 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 440 states and 568 transitions. [2019-12-07 14:57:16,308 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 165 [2019-12-07 14:57:16,308 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:16,309 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:16,309 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:16,309 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:16,309 INFO L794 eck$LassoCheckResult]: Stem: 9804#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 9805#L176 assume !false; 9990#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 9989#L29 assume 8466 == main_~s__state~0; 9987#L30 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 1; 9985#L78-1 main_~s__state~0 := 8496; 9983#L176 assume !false; 9981#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 9979#L29 assume !(8466 == main_~s__state~0); 9977#L32 assume 8496 == main_~s__state~0; 9976#L33 assume 1 == main_~blastFlag~0;main_~blastFlag~0 := 2; 9974#L85-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8512; 9975#L176 assume !false; 10140#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 10138#L29 assume !(8466 == main_~s__state~0); 10137#L32 assume !(8496 == main_~s__state~0); 10136#L36 assume 8512 == main_~s__state~0; 10135#L37 main_~s__state~0 := 8528; 10133#L176 assume !false; 10132#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 10129#L29 assume !(8466 == main_~s__state~0); 10125#L32 assume !(8496 == main_~s__state~0); 10121#L36 assume !(8512 == main_~s__state~0); 9739#L40 assume 8528 == main_~s__state~0; 9740#L41 main_~s__state~0 := 8544; 9794#L176 assume !false; 10095#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 10147#L29 assume !(8466 == main_~s__state~0); 10145#L32 assume !(8496 == main_~s__state~0); 10142#L36 assume !(8512 == main_~s__state~0); 10100#L40 assume !(8528 == main_~s__state~0); 10043#L44 assume !(8544 == main_~s__state~0); 9906#L48 assume !(8560 == main_~s__state~0); 9857#L52 assume 8576 == main_~s__state~0; 9802#L53 [2019-12-07 14:57:16,309 INFO L796 eck$LassoCheckResult]: Loop: 9802#L53 main_~tmp___1~0 := main_#t~nondet4;havoc main_#t~nondet4; 9730#L135 assume !(2 == main_~tmp___1~0);main_~s__state~0 := 8592; 9723#L176 assume !false; 10027#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 10024#L29 assume !(8466 == main_~s__state~0); 10020#L32 assume !(8496 == main_~s__state~0); 10017#L36 assume !(8512 == main_~s__state~0); 10014#L40 assume !(8528 == main_~s__state~0); 10011#L44 assume !(8544 == main_~s__state~0); 9845#L48 assume !(8560 == main_~s__state~0); 9846#L52 assume 8576 == main_~s__state~0; 9802#L53 [2019-12-07 14:57:16,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,310 INFO L82 PathProgramCache]: Analyzing trace with hash -682922250, now seen corresponding path program 1 times [2019-12-07 14:57:16,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,310 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734048728] [2019-12-07 14:57:16,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:16,321 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-12-07 14:57:16,321 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734048728] [2019-12-07 14:57:16,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:16,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:57:16,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114896971] [2019-12-07 14:57:16,322 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 14:57:16,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,322 INFO L82 PathProgramCache]: Analyzing trace with hash -589369450, now seen corresponding path program 1 times [2019-12-07 14:57:16,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,322 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118756814] [2019-12-07 14:57:16,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:16,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:57:16,329 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118756814] [2019-12-07 14:57:16,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:16,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:57:16,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119293803] [2019-12-07 14:57:16,329 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 14:57:16,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:57:16,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:57:16,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:57:16,330 INFO L87 Difference]: Start difference. First operand 440 states and 568 transitions. cyclomatic complexity: 137 Second operand 3 states. [2019-12-07 14:57:16,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:57:16,376 INFO L93 Difference]: Finished difference Result 465 states and 582 transitions. [2019-12-07 14:57:16,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:57:16,376 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 465 states and 582 transitions. [2019-12-07 14:57:16,378 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 165 [2019-12-07 14:57:16,380 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 465 states to 456 states and 573 transitions. [2019-12-07 14:57:16,380 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 240 [2019-12-07 14:57:16,380 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 240 [2019-12-07 14:57:16,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 456 states and 573 transitions. [2019-12-07 14:57:16,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:16,381 INFO L688 BuchiCegarLoop]: Abstraction has 456 states and 573 transitions. [2019-12-07 14:57:16,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states and 573 transitions. [2019-12-07 14:57:16,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 449. [2019-12-07 14:57:16,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2019-12-07 14:57:16,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 562 transitions. [2019-12-07 14:57:16,385 INFO L711 BuchiCegarLoop]: Abstraction has 449 states and 562 transitions. [2019-12-07 14:57:16,385 INFO L591 BuchiCegarLoop]: Abstraction has 449 states and 562 transitions. [2019-12-07 14:57:16,385 INFO L424 BuchiCegarLoop]: ======== Iteration 12============ [2019-12-07 14:57:16,385 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 449 states and 562 transitions. [2019-12-07 14:57:16,387 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 165 [2019-12-07 14:57:16,387 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:16,387 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:16,387 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:16,387 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:16,387 INFO L794 eck$LassoCheckResult]: Stem: 10724#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 10725#L176 assume !false; 10900#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 10898#L29 assume 8466 == main_~s__state~0; 10896#L30 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 1; 10890#L78-1 main_~s__state~0 := 8496; 10888#L176 assume !false; 10887#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 10886#L29 assume !(8466 == main_~s__state~0); 10885#L32 assume 8496 == main_~s__state~0; 10884#L33 assume 1 == main_~blastFlag~0;main_~blastFlag~0 := 2; 10882#L85-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8512; 10883#L176 assume !false; 10922#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 10919#L29 assume !(8466 == main_~s__state~0); 10916#L32 assume !(8496 == main_~s__state~0); 10912#L36 assume 8512 == main_~s__state~0; 10908#L37 main_~s__state~0 := 8528; 10903#L176 assume !false; 10902#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 10901#L29 assume !(8466 == main_~s__state~0); 10899#L32 assume !(8496 == main_~s__state~0); 10897#L36 assume !(8512 == main_~s__state~0); 10895#L40 assume 8528 == main_~s__state~0; 10709#L41 main_~s__state~0 := 8544; 10710#L176 assume !false; 10920#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 10917#L29 assume !(8466 == main_~s__state~0); 10914#L32 assume !(8496 == main_~s__state~0); 10910#L36 assume !(8512 == main_~s__state~0); 10905#L40 assume !(8528 == main_~s__state~0); 10892#L44 assume !(8544 == main_~s__state~0); 10769#L48 assume !(8560 == main_~s__state~0); 10738#L52 assume 8576 == main_~s__state~0; 10719#L53 [2019-12-07 14:57:16,387 INFO L796 eck$LassoCheckResult]: Loop: 10719#L53 main_~tmp___1~0 := main_#t~nondet4;havoc main_#t~nondet4; 10642#L135 assume 2 == main_~tmp___1~0;main_~s__state~0 := 8466; 10643#L176 assume !false; 10827#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 10825#L29 assume 8466 == main_~s__state~0; 10749#L30 assume !(0 == main_~blastFlag~0); 10820#L78-1 main_~s__state~0 := 8496; 10818#L176 assume !false; 10816#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 10814#L29 assume !(8466 == main_~s__state~0); 10812#L32 assume 8496 == main_~s__state~0; 10745#L33 assume 1 == main_~blastFlag~0;main_~blastFlag~0 := 2; 10802#L85-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8512; 10799#L176 assume !false; 10797#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 10794#L29 assume !(8466 == main_~s__state~0); 10791#L32 assume !(8496 == main_~s__state~0); 10787#L36 assume 8512 == main_~s__state~0; 10741#L37 main_~s__state~0 := 8528; 10780#L176 assume !false; 10776#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 10772#L29 assume !(8466 == main_~s__state~0); 10768#L32 assume !(8496 == main_~s__state~0); 10762#L36 assume !(8512 == main_~s__state~0); 10760#L40 assume 8528 == main_~s__state~0; 10736#L41 main_~s__state~0 := 8544; 10635#L176 assume !false; 10752#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 10748#L29 assume !(8466 == main_~s__state~0); 10744#L32 assume !(8496 == main_~s__state~0); 10740#L36 assume !(8512 == main_~s__state~0); 10735#L40 assume !(8528 == main_~s__state~0); 10733#L44 assume !(8544 == main_~s__state~0); 10731#L48 assume !(8560 == main_~s__state~0); 10732#L52 assume 8576 == main_~s__state~0; 10719#L53 [2019-12-07 14:57:16,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,388 INFO L82 PathProgramCache]: Analyzing trace with hash -682922250, now seen corresponding path program 2 times [2019-12-07 14:57:16,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,388 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123130159] [2019-12-07 14:57:16,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:16,398 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-12-07 14:57:16,398 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123130159] [2019-12-07 14:57:16,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:16,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:57:16,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728815730] [2019-12-07 14:57:16,399 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 14:57:16,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,399 INFO L82 PathProgramCache]: Analyzing trace with hash 2085672464, now seen corresponding path program 1 times [2019-12-07 14:57:16,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,399 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159836751] [2019-12-07 14:57:16,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-12-07 14:57:16,412 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159836751] [2019-12-07 14:57:16,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:16,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:57:16,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182170665] [2019-12-07 14:57:16,412 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 14:57:16,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:57:16,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:57:16,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:57:16,413 INFO L87 Difference]: Start difference. First operand 449 states and 562 transitions. cyclomatic complexity: 123 Second operand 3 states. [2019-12-07 14:57:16,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:57:16,451 INFO L93 Difference]: Finished difference Result 453 states and 549 transitions. [2019-12-07 14:57:16,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:57:16,451 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 453 states and 549 transitions. [2019-12-07 14:57:16,453 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 147 [2019-12-07 14:57:16,455 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 453 states to 415 states and 506 transitions. [2019-12-07 14:57:16,455 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 217 [2019-12-07 14:57:16,455 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2019-12-07 14:57:16,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 415 states and 506 transitions. [2019-12-07 14:57:16,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:16,456 INFO L688 BuchiCegarLoop]: Abstraction has 415 states and 506 transitions. [2019-12-07 14:57:16,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states and 506 transitions. [2019-12-07 14:57:16,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 413. [2019-12-07 14:57:16,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-12-07 14:57:16,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 504 transitions. [2019-12-07 14:57:16,460 INFO L711 BuchiCegarLoop]: Abstraction has 413 states and 504 transitions. [2019-12-07 14:57:16,460 INFO L591 BuchiCegarLoop]: Abstraction has 413 states and 504 transitions. [2019-12-07 14:57:16,460 INFO L424 BuchiCegarLoop]: ======== Iteration 13============ [2019-12-07 14:57:16,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 413 states and 504 transitions. [2019-12-07 14:57:16,461 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 146 [2019-12-07 14:57:16,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:16,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:16,462 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:16,462 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:16,462 INFO L794 eck$LassoCheckResult]: Stem: 11634#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 11635#L176 assume !false; 11872#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 11869#L29 assume 8466 == main_~s__state~0; 11612#L30 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 1; 11613#L78-1 main_~s__state~0 := 8496; 11735#L176 assume !false; 11734#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 11733#L29 assume !(8466 == main_~s__state~0); 11731#L32 assume 8496 == main_~s__state~0; 11729#L33 assume 1 == main_~blastFlag~0;main_~blastFlag~0 := 2; 11726#L85-1 assume 0 != main_~s__hit~0;main_~s__state~0 := 8656; 11722#L176 assume !false; 11720#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 11718#L29 assume !(8466 == main_~s__state~0); 11716#L32 assume !(8496 == main_~s__state~0); 11714#L36 assume !(8512 == main_~s__state~0); 11712#L40 assume !(8528 == main_~s__state~0); 11710#L44 assume !(8544 == main_~s__state~0); 11708#L48 assume !(8560 == main_~s__state~0); 11706#L52 assume !(8576 == main_~s__state~0); 11588#L56 assume !(8592 == main_~s__state~0); 11549#L60 assume !(8608 == main_~s__state~0); 11550#L64 assume !(8640 == main_~s__state~0); 11633#L68 assume 8656 == main_~s__state~0; 11541#L69 assume !(2 == main_~blastFlag~0); 11542#L162-1 main_~s__state~0 := 8672; 11574#L176 assume !false; 11899#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 11895#L29 assume !(8466 == main_~s__state~0); 11891#L32 assume !(8496 == main_~s__state~0); 11887#L36 assume !(8512 == main_~s__state~0); 11883#L40 assume !(8528 == main_~s__state~0); 11879#L44 assume !(8544 == main_~s__state~0); 11599#L48 assume !(8560 == main_~s__state~0); 11600#L52 assume !(8576 == main_~s__state~0); 11627#L56 assume !(8592 == main_~s__state~0); 11643#L60 assume !(8608 == main_~s__state~0); 11642#L64 assume !(8640 == main_~s__state~0); 11641#L68 assume !(8656 == main_~s__state~0); 11611#L72 [2019-12-07 14:57:16,462 INFO L796 eck$LassoCheckResult]: Loop: 11611#L72 assume 8672 == main_~s__state~0; 11564#L73 assume 4 == main_~blastFlag~0;main_~blastFlag~0 := 5; 11565#L169-1 assume 0 != main_~s__hit~0;main_~s__state~0 := 8640; 11610#L176 assume !false; 11858#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 11857#L29 assume !(8466 == main_~s__state~0); 11854#L32 assume !(8496 == main_~s__state~0); 11852#L36 assume !(8512 == main_~s__state~0); 11850#L40 assume !(8528 == main_~s__state~0); 11848#L44 assume !(8544 == main_~s__state~0); 11846#L48 assume !(8560 == main_~s__state~0); 11844#L52 assume !(8576 == main_~s__state~0); 11587#L56 assume !(8592 == main_~s__state~0); 11547#L60 assume !(8608 == main_~s__state~0); 11548#L64 assume 8640 == main_~s__state~0; 11572#L65 assume 3 == main_~blastFlag~0;main_~blastFlag~0 := 4; 11570#L151-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8656; 11571#L176 assume !false; 11702#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 11701#L29 assume !(8466 == main_~s__state~0); 11699#L32 assume !(8496 == main_~s__state~0); 11697#L36 assume !(8512 == main_~s__state~0); 11695#L40 assume !(8528 == main_~s__state~0); 11693#L44 assume !(8544 == main_~s__state~0); 11691#L48 assume !(8560 == main_~s__state~0); 11689#L52 assume !(8576 == main_~s__state~0); 11688#L56 assume !(8592 == main_~s__state~0); 11686#L60 assume !(8608 == main_~s__state~0); 11631#L64 assume !(8640 == main_~s__state~0); 11632#L68 assume 8656 == main_~s__state~0; 11539#L69 assume 2 == main_~blastFlag~0;main_~blastFlag~0 := 3; 11540#L162-1 main_~s__state~0 := 8672; 11573#L176 assume !false; 11677#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 11676#L29 assume !(8466 == main_~s__state~0); 11671#L32 assume !(8496 == main_~s__state~0); 11670#L36 assume !(8512 == main_~s__state~0); 11668#L40 assume !(8528 == main_~s__state~0); 11665#L44 assume !(8544 == main_~s__state~0); 11662#L48 assume !(8560 == main_~s__state~0); 11659#L52 assume !(8576 == main_~s__state~0); 11656#L56 assume !(8592 == main_~s__state~0); 11653#L60 assume !(8608 == main_~s__state~0); 11649#L64 assume !(8640 == main_~s__state~0); 11646#L68 assume !(8656 == main_~s__state~0); 11611#L72 [2019-12-07 14:57:16,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1636133345, now seen corresponding path program 1 times [2019-12-07 14:57:16,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,462 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262885788] [2019-12-07 14:57:16,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:16,473 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 14:57:16,473 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262885788] [2019-12-07 14:57:16,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:16,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:57:16,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693146540] [2019-12-07 14:57:16,474 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 14:57:16,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,474 INFO L82 PathProgramCache]: Analyzing trace with hash -270758187, now seen corresponding path program 1 times [2019-12-07 14:57:16,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547667137] [2019-12-07 14:57:16,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:16,485 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-12-07 14:57:16,486 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547667137] [2019-12-07 14:57:16,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:16,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:57:16,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93849988] [2019-12-07 14:57:16,486 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 14:57:16,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:57:16,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:57:16,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:57:16,487 INFO L87 Difference]: Start difference. First operand 413 states and 504 transitions. cyclomatic complexity: 99 Second operand 3 states. [2019-12-07 14:57:16,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:57:16,507 INFO L93 Difference]: Finished difference Result 429 states and 511 transitions. [2019-12-07 14:57:16,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:57:16,507 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 429 states and 511 transitions. [2019-12-07 14:57:16,510 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2019-12-07 14:57:16,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 429 states to 429 states and 511 transitions. [2019-12-07 14:57:16,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 239 [2019-12-07 14:57:16,513 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 239 [2019-12-07 14:57:16,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 429 states and 511 transitions. [2019-12-07 14:57:16,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:16,514 INFO L688 BuchiCegarLoop]: Abstraction has 429 states and 511 transitions. [2019-12-07 14:57:16,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states and 511 transitions. [2019-12-07 14:57:16,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2019-12-07 14:57:16,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2019-12-07 14:57:16,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 511 transitions. [2019-12-07 14:57:16,520 INFO L711 BuchiCegarLoop]: Abstraction has 429 states and 511 transitions. [2019-12-07 14:57:16,521 INFO L591 BuchiCegarLoop]: Abstraction has 429 states and 511 transitions. [2019-12-07 14:57:16,521 INFO L424 BuchiCegarLoop]: ======== Iteration 14============ [2019-12-07 14:57:16,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 429 states and 511 transitions. [2019-12-07 14:57:16,523 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2019-12-07 14:57:16,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:16,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:16,524 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:16,524 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:16,524 INFO L794 eck$LassoCheckResult]: Stem: 12482#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 12483#L176 assume !false; 12738#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 12736#L29 assume 8466 == main_~s__state~0; 12459#L30 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 1; 12460#L78-1 main_~s__state~0 := 8496; 12710#L176 assume !false; 12709#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 12708#L29 assume !(8466 == main_~s__state~0); 12707#L32 assume 8496 == main_~s__state~0; 12705#L33 assume 1 == main_~blastFlag~0;main_~blastFlag~0 := 2; 12706#L85-1 assume 0 != main_~s__hit~0;main_~s__state~0 := 8656; 12474#L176 assume !false; 12745#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 12744#L29 assume !(8466 == main_~s__state~0); 12741#L32 assume !(8496 == main_~s__state~0); 12740#L36 assume !(8512 == main_~s__state~0); 12739#L40 assume !(8528 == main_~s__state~0); 12737#L44 assume !(8544 == main_~s__state~0); 12445#L48 assume !(8560 == main_~s__state~0); 12446#L52 assume !(8576 == main_~s__state~0); 12435#L56 assume !(8592 == main_~s__state~0); 12398#L60 assume !(8608 == main_~s__state~0); 12399#L64 assume !(8640 == main_~s__state~0); 12481#L68 assume 8656 == main_~s__state~0; 12390#L69 assume 2 == main_~blastFlag~0;main_~blastFlag~0 := 3; 12391#L162-1 main_~s__state~0 := 8672; 12420#L176 assume !false; 12603#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 12816#L29 assume !(8466 == main_~s__state~0); 12815#L32 assume !(8496 == main_~s__state~0); 12814#L36 assume !(8512 == main_~s__state~0); 12409#L40 assume !(8528 == main_~s__state~0); 12410#L44 assume !(8544 == main_~s__state~0); 12443#L48 assume !(8560 == main_~s__state~0); 12444#L52 assume !(8576 == main_~s__state~0); 12434#L56 assume !(8592 == main_~s__state~0); 12396#L60 assume !(8608 == main_~s__state~0); 12397#L64 assume !(8640 == main_~s__state~0); 12480#L68 assume !(8656 == main_~s__state~0); 12488#L72 [2019-12-07 14:57:16,524 INFO L796 eck$LassoCheckResult]: Loop: 12488#L72 assume 8672 == main_~s__state~0; 12807#L73 assume 4 == main_~blastFlag~0;main_~blastFlag~0 := 5; 12805#L169-1 assume 0 != main_~s__hit~0;main_~s__state~0 := 8640; 12804#L176 assume !false; 12802#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 12800#L29 assume !(8466 == main_~s__state~0); 12798#L32 assume !(8496 == main_~s__state~0); 12796#L36 assume !(8512 == main_~s__state~0); 12794#L40 assume !(8528 == main_~s__state~0); 12792#L44 assume !(8544 == main_~s__state~0); 12790#L48 assume !(8560 == main_~s__state~0); 12787#L52 assume !(8576 == main_~s__state~0); 12785#L56 assume !(8592 == main_~s__state~0); 12782#L60 assume !(8608 == main_~s__state~0); 12724#L64 assume 8640 == main_~s__state~0; 12725#L65 assume 3 == main_~blastFlag~0;main_~blastFlag~0 := 4; 12778#L151-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8656; 12777#L176 assume !false; 12775#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 12773#L29 assume !(8466 == main_~s__state~0); 12771#L32 assume !(8496 == main_~s__state~0); 12769#L36 assume !(8512 == main_~s__state~0); 12767#L40 assume !(8528 == main_~s__state~0); 12765#L44 assume !(8544 == main_~s__state~0); 12763#L48 assume !(8560 == main_~s__state~0); 12761#L52 assume !(8576 == main_~s__state~0); 12759#L56 assume !(8592 == main_~s__state~0); 12755#L60 assume !(8608 == main_~s__state~0); 12756#L64 assume !(8640 == main_~s__state~0); 12497#L68 assume 8656 == main_~s__state~0; 12493#L69 assume 2 == main_~blastFlag~0;main_~blastFlag~0 := 3; 12389#L162-1 main_~s__state~0 := 8672; 12419#L176 assume !false; 12776#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 12774#L29 assume !(8466 == main_~s__state~0); 12772#L32 assume !(8496 == main_~s__state~0); 12770#L36 assume !(8512 == main_~s__state~0); 12768#L40 assume !(8528 == main_~s__state~0); 12766#L44 assume !(8544 == main_~s__state~0); 12764#L48 assume !(8560 == main_~s__state~0); 12762#L52 assume !(8576 == main_~s__state~0); 12760#L56 assume !(8592 == main_~s__state~0); 12758#L60 assume !(8608 == main_~s__state~0); 12753#L64 assume !(8640 == main_~s__state~0); 12754#L68 assume !(8656 == main_~s__state~0); 12488#L72 [2019-12-07 14:57:16,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,524 INFO L82 PathProgramCache]: Analyzing trace with hash -356269667, now seen corresponding path program 1 times [2019-12-07 14:57:16,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,525 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470123731] [2019-12-07 14:57:16,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:16,536 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:16,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,536 INFO L82 PathProgramCache]: Analyzing trace with hash -270758187, now seen corresponding path program 2 times [2019-12-07 14:57:16,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,536 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709106431] [2019-12-07 14:57:16,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:16,548 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-12-07 14:57:16,548 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709106431] [2019-12-07 14:57:16,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:16,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:57:16,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255585345] [2019-12-07 14:57:16,549 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 14:57:16,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:57:16,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:57:16,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:57:16,549 INFO L87 Difference]: Start difference. First operand 429 states and 511 transitions. cyclomatic complexity: 90 Second operand 3 states. [2019-12-07 14:57:16,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:57:16,567 INFO L93 Difference]: Finished difference Result 475 states and 558 transitions. [2019-12-07 14:57:16,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:57:16,568 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 475 states and 558 transitions. [2019-12-07 14:57:16,570 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 180 [2019-12-07 14:57:16,573 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 475 states to 475 states and 558 transitions. [2019-12-07 14:57:16,573 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 285 [2019-12-07 14:57:16,574 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 285 [2019-12-07 14:57:16,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 475 states and 558 transitions. [2019-12-07 14:57:16,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:16,574 INFO L688 BuchiCegarLoop]: Abstraction has 475 states and 558 transitions. [2019-12-07 14:57:16,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states and 558 transitions. [2019-12-07 14:57:16,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 475. [2019-12-07 14:57:16,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2019-12-07 14:57:16,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 558 transitions. [2019-12-07 14:57:16,580 INFO L711 BuchiCegarLoop]: Abstraction has 475 states and 558 transitions. [2019-12-07 14:57:16,580 INFO L591 BuchiCegarLoop]: Abstraction has 475 states and 558 transitions. [2019-12-07 14:57:16,580 INFO L424 BuchiCegarLoop]: ======== Iteration 15============ [2019-12-07 14:57:16,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 475 states and 558 transitions. [2019-12-07 14:57:16,582 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 180 [2019-12-07 14:57:16,582 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:16,582 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:16,583 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:16,583 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:16,583 INFO L794 eck$LassoCheckResult]: Stem: 13386#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 13387#L176 assume !false; 13556#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 13550#L29 assume 8466 == main_~s__state~0; 13545#L30 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 1; 13540#L78-1 main_~s__state~0 := 8496; 13534#L176 assume !false; 13528#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 13523#L29 assume !(8466 == main_~s__state~0); 13520#L32 assume 8496 == main_~s__state~0; 13517#L33 assume 1 == main_~blastFlag~0;main_~blastFlag~0 := 2; 13508#L85-1 assume 0 != main_~s__hit~0;main_~s__state~0 := 8656; 13380#L176 assume !false; 13469#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 13467#L29 assume !(8466 == main_~s__state~0); 13465#L32 assume !(8496 == main_~s__state~0); 13463#L36 assume !(8512 == main_~s__state~0); 13462#L40 assume !(8528 == main_~s__state~0); 13461#L44 assume !(8544 == main_~s__state~0); 13460#L48 assume !(8560 == main_~s__state~0); 13459#L52 assume !(8576 == main_~s__state~0); 13457#L56 assume !(8592 == main_~s__state~0); 13456#L60 assume !(8608 == main_~s__state~0); 13454#L64 assume !(8640 == main_~s__state~0); 13396#L68 assume 8656 == main_~s__state~0; 13300#L69 assume 2 == main_~blastFlag~0;main_~blastFlag~0 := 3; 13301#L162-1 main_~s__state~0 := 8672; 13331#L176 assume !false; 13631#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 13636#L29 assume !(8466 == main_~s__state~0); 13634#L32 assume !(8496 == main_~s__state~0); 13633#L36 assume !(8512 == main_~s__state~0); 13632#L40 assume !(8528 == main_~s__state~0); 13630#L44 assume !(8544 == main_~s__state~0); 13628#L48 assume !(8560 == main_~s__state~0); 13624#L52 assume !(8576 == main_~s__state~0); 13620#L56 assume !(8592 == main_~s__state~0); 13616#L60 assume !(8608 == main_~s__state~0); 13611#L64 assume !(8640 == main_~s__state~0); 13395#L68 assume !(8656 == main_~s__state~0); 13368#L72 [2019-12-07 14:57:16,583 INFO L796 eck$LassoCheckResult]: Loop: 13368#L72 assume 8672 == main_~s__state~0; 13369#L73 assume !(4 == main_~blastFlag~0); 13392#L172 assume !(5 == main_~blastFlag~0); 13370#L169-1 assume 0 != main_~s__hit~0;main_~s__state~0 := 8640; 13356#L176 assume !false; 13333#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 13315#L29 assume !(8466 == main_~s__state~0); 13316#L32 assume !(8496 == main_~s__state~0); 13325#L36 assume !(8512 == main_~s__state~0); 13769#L40 assume !(8528 == main_~s__state~0); 13768#L44 assume !(8544 == main_~s__state~0); 13767#L48 assume !(8560 == main_~s__state~0); 13765#L52 assume !(8576 == main_~s__state~0); 13751#L56 assume !(8592 == main_~s__state~0); 13306#L60 assume !(8608 == main_~s__state~0); 13307#L64 assume 8640 == main_~s__state~0; 13332#L65 assume 3 == main_~blastFlag~0;main_~blastFlag~0 := 4; 13327#L151-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8656; 13328#L176 assume !false; 13766#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 13764#L29 assume !(8466 == main_~s__state~0); 13763#L32 assume !(8496 == main_~s__state~0); 13761#L36 assume !(8512 == main_~s__state~0); 13759#L40 assume !(8528 == main_~s__state~0); 13757#L44 assume !(8544 == main_~s__state~0); 13755#L48 assume !(8560 == main_~s__state~0); 13753#L52 assume !(8576 == main_~s__state~0); 13750#L56 assume !(8592 == main_~s__state~0); 13748#L60 assume !(8608 == main_~s__state~0); 13746#L64 assume !(8640 == main_~s__state~0); 13455#L68 assume 8656 == main_~s__state~0; 13453#L69 assume 2 == main_~blastFlag~0;main_~blastFlag~0 := 3; 13329#L162-1 main_~s__state~0 := 8672; 13330#L176 assume !false; 13772#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 13771#L29 assume !(8466 == main_~s__state~0); 13770#L32 assume !(8496 == main_~s__state~0); 13351#L36 assume !(8512 == main_~s__state~0); 13319#L40 assume !(8528 == main_~s__state~0); 13320#L44 assume !(8544 == main_~s__state~0); 13358#L48 assume !(8560 == main_~s__state~0); 13359#L52 assume !(8576 == main_~s__state~0); 13346#L56 assume !(8592 == main_~s__state~0); 13347#L60 assume !(8608 == main_~s__state~0); 13684#L64 assume !(8640 == main_~s__state~0); 13685#L68 assume !(8656 == main_~s__state~0); 13368#L72 [2019-12-07 14:57:16,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,584 INFO L82 PathProgramCache]: Analyzing trace with hash -356269667, now seen corresponding path program 2 times [2019-12-07 14:57:16,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,584 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481250734] [2019-12-07 14:57:16,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:16,593 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:16,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1348951222, now seen corresponding path program 1 times [2019-12-07 14:57:16,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,594 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542256523] [2019-12-07 14:57:16,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:16,609 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-12-07 14:57:16,610 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542256523] [2019-12-07 14:57:16,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:16,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:57:16,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134484746] [2019-12-07 14:57:16,610 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 14:57:16,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:57:16,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:57:16,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:57:16,611 INFO L87 Difference]: Start difference. First operand 475 states and 558 transitions. cyclomatic complexity: 92 Second operand 3 states. [2019-12-07 14:57:16,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:57:16,629 INFO L93 Difference]: Finished difference Result 450 states and 530 transitions. [2019-12-07 14:57:16,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:57:16,629 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 450 states and 530 transitions. [2019-12-07 14:57:16,631 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 103 [2019-12-07 14:57:16,633 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 450 states to 352 states and 424 transitions. [2019-12-07 14:57:16,633 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 191 [2019-12-07 14:57:16,633 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 191 [2019-12-07 14:57:16,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 352 states and 424 transitions. [2019-12-07 14:57:16,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:16,633 INFO L688 BuchiCegarLoop]: Abstraction has 352 states and 424 transitions. [2019-12-07 14:57:16,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states and 424 transitions. [2019-12-07 14:57:16,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 351. [2019-12-07 14:57:16,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-12-07 14:57:16,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 423 transitions. [2019-12-07 14:57:16,637 INFO L711 BuchiCegarLoop]: Abstraction has 351 states and 423 transitions. [2019-12-07 14:57:16,637 INFO L591 BuchiCegarLoop]: Abstraction has 351 states and 423 transitions. [2019-12-07 14:57:16,637 INFO L424 BuchiCegarLoop]: ======== Iteration 16============ [2019-12-07 14:57:16,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 351 states and 423 transitions. [2019-12-07 14:57:16,638 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 103 [2019-12-07 14:57:16,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:16,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:16,639 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:16,639 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:16,639 INFO L794 eck$LassoCheckResult]: Stem: 14306#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 14307#L176 assume !false; 14556#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 14479#L29 assume 8466 == main_~s__state~0; 14480#L30 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 1; 14540#L78-1 main_~s__state~0 := 8496; 14539#L176 assume !false; 14535#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 14533#L29 assume !(8466 == main_~s__state~0); 14529#L32 assume 8496 == main_~s__state~0; 14528#L33 assume 1 == main_~blastFlag~0;main_~blastFlag~0 := 2; 14526#L85-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8512; 14524#L176 assume !false; 14521#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 14518#L29 assume !(8466 == main_~s__state~0); 14515#L32 assume !(8496 == main_~s__state~0); 14513#L36 assume 8512 == main_~s__state~0; 14512#L37 main_~s__state~0 := 8528; 14510#L176 assume !false; 14507#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 14504#L29 assume !(8466 == main_~s__state~0); 14501#L32 assume !(8496 == main_~s__state~0); 14498#L36 assume !(8512 == main_~s__state~0); 14462#L40 assume 8528 == main_~s__state~0; 14463#L41 main_~s__state~0 := 8544; 14477#L176 assume !false; 14476#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 14474#L29 assume !(8466 == main_~s__state~0); 14472#L32 assume !(8496 == main_~s__state~0); 14470#L36 assume !(8512 == main_~s__state~0); 14468#L40 assume !(8528 == main_~s__state~0); 14465#L44 assume 8544 == main_~s__state~0; 14263#L45 assume !(0 != 1 + main_~s__verify_mode~0);main_~s__state~0 := 8560; 14264#L176 assume !false; 14494#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 14563#L29 assume !(8466 == main_~s__state~0); 14562#L32 assume !(8496 == main_~s__state~0); 14561#L36 assume !(8512 == main_~s__state~0); 14559#L40 assume !(8528 == main_~s__state~0); 14310#L44 assume !(8544 == main_~s__state~0); 14311#L48 assume !(8560 == main_~s__state~0); 14324#L52 assume 8576 == main_~s__state~0; 14303#L53 [2019-12-07 14:57:16,639 INFO L796 eck$LassoCheckResult]: Loop: 14303#L53 main_~tmp___1~0 := main_#t~nondet4;havoc main_#t~nondet4; 14237#L135 assume 2 == main_~tmp___1~0;main_~s__state~0 := 8466; 14238#L176 assume !false; 14455#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 14453#L29 assume 8466 == main_~s__state~0; 14407#L30 assume !(0 == main_~blastFlag~0); 14451#L78-1 main_~s__state~0 := 8496; 14449#L176 assume !false; 14447#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 14445#L29 assume !(8466 == main_~s__state~0); 14443#L32 assume 8496 == main_~s__state~0; 14403#L33 assume !(1 == main_~blastFlag~0); 14441#L85-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8512; 14439#L176 assume !false; 14437#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 14435#L29 assume !(8466 == main_~s__state~0); 14417#L32 assume !(8496 == main_~s__state~0); 14414#L36 assume 8512 == main_~s__state~0; 14392#L37 main_~s__state~0 := 8528; 14405#L176 assume !false; 14401#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 14400#L29 assume !(8466 == main_~s__state~0); 14399#L32 assume !(8496 == main_~s__state~0); 14398#L36 assume !(8512 == main_~s__state~0); 14390#L40 assume 8528 == main_~s__state~0; 14387#L41 main_~s__state~0 := 8544; 14384#L176 assume !false; 14380#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 14375#L29 assume !(8466 == main_~s__state~0); 14370#L32 assume !(8496 == main_~s__state~0); 14365#L36 assume !(8512 == main_~s__state~0); 14361#L40 assume !(8528 == main_~s__state~0); 14323#L44 assume 8544 == main_~s__state~0; 14322#L45 assume !(0 != 1 + main_~s__verify_mode~0);main_~s__state~0 := 8560; 14232#L176 assume !false; 14411#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 14406#L29 assume !(8466 == main_~s__state~0); 14402#L32 assume !(8496 == main_~s__state~0); 14391#L36 assume !(8512 == main_~s__state~0); 14388#L40 assume !(8528 == main_~s__state~0); 14360#L44 assume !(8544 == main_~s__state~0); 14314#L48 assume !(8560 == main_~s__state~0); 14315#L52 assume 8576 == main_~s__state~0; 14303#L53 [2019-12-07 14:57:16,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,640 INFO L82 PathProgramCache]: Analyzing trace with hash -2029459126, now seen corresponding path program 1 times [2019-12-07 14:57:16,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,640 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076087967] [2019-12-07 14:57:16,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:16,650 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-12-07 14:57:16,651 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076087967] [2019-12-07 14:57:16,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:16,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:57:16,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472539038] [2019-12-07 14:57:16,651 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 14:57:16,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,651 INFO L82 PathProgramCache]: Analyzing trace with hash -16050654, now seen corresponding path program 1 times [2019-12-07 14:57:16,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,652 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302784688] [2019-12-07 14:57:16,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:57:16,661 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-12-07 14:57:16,661 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302784688] [2019-12-07 14:57:16,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:57:16,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:57:16,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450970718] [2019-12-07 14:57:16,662 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 14:57:16,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:57:16,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:57:16,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:57:16,662 INFO L87 Difference]: Start difference. First operand 351 states and 423 transitions. cyclomatic complexity: 79 Second operand 3 states. [2019-12-07 14:57:16,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:57:16,693 INFO L93 Difference]: Finished difference Result 382 states and 443 transitions. [2019-12-07 14:57:16,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:57:16,694 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 382 states and 443 transitions. [2019-12-07 14:57:16,695 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 72 [2019-12-07 14:57:16,696 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 382 states to 336 states and 390 transitions. [2019-12-07 14:57:16,696 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 166 [2019-12-07 14:57:16,697 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 167 [2019-12-07 14:57:16,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 336 states and 390 transitions. [2019-12-07 14:57:16,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:57:16,697 INFO L688 BuchiCegarLoop]: Abstraction has 336 states and 390 transitions. [2019-12-07 14:57:16,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states and 390 transitions. [2019-12-07 14:57:16,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 335. [2019-12-07 14:57:16,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2019-12-07 14:57:16,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 389 transitions. [2019-12-07 14:57:16,700 INFO L711 BuchiCegarLoop]: Abstraction has 335 states and 389 transitions. [2019-12-07 14:57:16,700 INFO L591 BuchiCegarLoop]: Abstraction has 335 states and 389 transitions. [2019-12-07 14:57:16,700 INFO L424 BuchiCegarLoop]: ======== Iteration 17============ [2019-12-07 14:57:16,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 335 states and 389 transitions. [2019-12-07 14:57:16,701 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 72 [2019-12-07 14:57:16,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:57:16,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:57:16,702 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:16,702 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:57:16,702 INFO L794 eck$LassoCheckResult]: Stem: 15050#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~s__state~0, main_~s__hit~0, main_~s__verify_mode~0, main_~s__session__peer~0, main_~s__s3__tmp__new_cipher__algorithms~0, main_~buf~0, main_~cb~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~s__verify_mode~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~s__session__peer~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~s__s3__tmp__new_cipher__algorithms~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~buf~0;havoc main_~cb~0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 15051#L176 assume !false; 15133#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 15131#L29 assume 8466 == main_~s__state~0; 15032#L30 assume 0 == main_~blastFlag~0;main_~blastFlag~0 := 1; 15033#L78-1 main_~s__state~0 := 8496; 15156#L176 assume !false; 15155#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 15153#L29 assume !(8466 == main_~s__state~0); 15151#L32 assume 8496 == main_~s__state~0; 15149#L33 assume 1 == main_~blastFlag~0;main_~blastFlag~0 := 2; 15147#L85-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8512; 15146#L176 assume !false; 15145#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 15143#L29 assume !(8466 == main_~s__state~0); 15141#L32 assume !(8496 == main_~s__state~0); 15139#L36 assume 8512 == main_~s__state~0; 15137#L37 main_~s__state~0 := 8528; 15136#L176 assume !false; 15135#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 15134#L29 assume !(8466 == main_~s__state~0); 15132#L32 assume !(8496 == main_~s__state~0); 15130#L36 assume !(8512 == main_~s__state~0); 15129#L40 assume 8528 == main_~s__state~0; 15128#L41 main_~s__state~0 := 8544; 15126#L176 assume !false; 15123#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 15122#L29 assume !(8466 == main_~s__state~0); 15121#L32 assume !(8496 == main_~s__state~0); 15119#L36 assume !(8512 == main_~s__state~0); 15117#L40 assume !(8528 == main_~s__state~0); 15114#L44 assume 8544 == main_~s__state~0; 15115#L45 assume 0 != 1 + main_~s__verify_mode~0; 15208#L105 assume !(0 != main_~s__session__peer~0); 15206#L112 assume !(0 != (256 + main_~s__s3__tmp__new_cipher__algorithms~0) % 4294967296); 15203#L120 main_~s__state~0 := 8576; 15201#L176 assume !false; 15185#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 15184#L29 assume !(8466 == main_~s__state~0); 15183#L32 assume !(8496 == main_~s__state~0); 15182#L36 assume !(8512 == main_~s__state~0); 15181#L40 assume !(8528 == main_~s__state~0); 15180#L44 assume !(8544 == main_~s__state~0); 15170#L48 assume !(8560 == main_~s__state~0); 15061#L52 assume 8576 == main_~s__state~0; 15046#L53 [2019-12-07 14:57:16,702 INFO L796 eck$LassoCheckResult]: Loop: 15046#L53 main_~tmp___1~0 := main_#t~nondet4;havoc main_#t~nondet4; 14977#L135 assume 2 == main_~tmp___1~0;main_~s__state~0 := 8466; 14978#L176 assume !false; 15200#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 15124#L29 assume 8466 == main_~s__state~0; 15125#L30 assume !(0 == main_~blastFlag~0); 15007#L78-1 main_~s__state~0 := 8496; 15008#L176 assume !false; 15164#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 15162#L29 assume !(8466 == main_~s__state~0); 15160#L32 assume 8496 == main_~s__state~0; 15052#L33 assume !(1 == main_~blastFlag~0); 15043#L85-1 assume !(0 != main_~s__hit~0);main_~s__state~0 := 8512; 15044#L176 assume !false; 15194#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 15192#L29 assume !(8466 == main_~s__state~0); 15190#L32 assume !(8496 == main_~s__state~0); 15188#L36 assume 8512 == main_~s__state~0; 15017#L37 main_~s__state~0 := 8528; 15018#L176 assume !false; 15154#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 15152#L29 assume !(8466 == main_~s__state~0); 15150#L32 assume !(8496 == main_~s__state~0); 15148#L36 assume !(8512 == main_~s__state~0); 15127#L40 assume 8528 == main_~s__state~0; 15035#L41 main_~s__state~0 := 8544; 15036#L176 assume !false; 15144#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 15142#L29 assume !(8466 == main_~s__state~0); 15140#L32 assume !(8496 == main_~s__state~0); 15138#L36 assume !(8512 == main_~s__state~0); 15102#L40 assume !(8528 == main_~s__state~0); 15057#L44 assume 8544 == main_~s__state~0; 15001#L45 assume 0 != 1 + main_~s__verify_mode~0; 15003#L105 assume !(0 != main_~s__session__peer~0); 15025#L112 assume !(0 != (256 + main_~s__s3__tmp__new_cipher__algorithms~0) % 4294967296); 15014#L120 main_~s__state~0 := 8576; 14972#L176 assume !false; 15212#L23 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 15158#L29 assume !(8466 == main_~s__state~0); 15157#L32 assume !(8496 == main_~s__state~0); 15103#L36 assume !(8512 == main_~s__state~0); 15104#L40 assume !(8528 == main_~s__state~0); 15105#L44 assume !(8544 == main_~s__state~0); 15106#L48 assume !(8560 == main_~s__state~0); 15060#L52 assume 8576 == main_~s__state~0; 15046#L53 [2019-12-07 14:57:16,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,702 INFO L82 PathProgramCache]: Analyzing trace with hash -904822850, now seen corresponding path program 1 times [2019-12-07 14:57:16,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,702 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840222163] [2019-12-07 14:57:16,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:16,717 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:16,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1328677862, now seen corresponding path program 1 times [2019-12-07 14:57:16,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,718 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334320762] [2019-12-07 14:57:16,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:16,726 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:16,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:57:16,726 INFO L82 PathProgramCache]: Analyzing trace with hash 2007728355, now seen corresponding path program 1 times [2019-12-07 14:57:16,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:57:16,726 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697414945] [2019-12-07 14:57:16,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:57:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:57:16,738 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:57:16,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 02:57:16 BoogieIcfgContainer [2019-12-07 14:57:16,952 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 14:57:16,952 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:57:16,952 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:57:16,952 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:57:16,953 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:57:13" (3/4) ... [2019-12-07 14:57:16,955 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 14:57:17,003 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2744acbb-d057-435a-a2e4-c1099d3b3d54/bin/uautomizer/witness.graphml [2019-12-07 14:57:17,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:57:17,005 INFO L168 Benchmark]: Toolchain (without parser) took 4053.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -120.6 MB). Peak memory consumption was 53.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:57:17,005 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:57:17,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:57:17,006 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:57:17,006 INFO L168 Benchmark]: Boogie Preprocessor took 17.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:57:17,006 INFO L168 Benchmark]: RCFGBuilder took 212.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2019-12-07 14:57:17,006 INFO L168 Benchmark]: BuchiAutomizer took 3536.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 60.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.2 MB). Peak memory consumption was 78.5 MB. Max. memory is 11.5 GB. [2019-12-07 14:57:17,007 INFO L168 Benchmark]: Witness Printer took 50.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:57:17,008 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 208.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 212.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3536.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 60.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.2 MB). Peak memory consumption was 78.5 MB. Max. memory is 11.5 GB. * Witness Printer took 50.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 23 terminating modules (15 trivial, 8 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * s__state + 8481 and consists of 5 locations. One deterministic module has affine ranking function -1 * s__state + 8576 and consists of 4 locations. One deterministic module has affine ranking function -1 * s__state + 8520 and consists of 5 locations. One deterministic module has affine ranking function -1 * s__state + 8536 and consists of 5 locations. One deterministic module has affine ranking function -1 * s__state + 8552 and consists of 5 locations. One deterministic module has affine ranking function -1 * s__state + 8568 and consists of 5 locations. One deterministic module has affine ranking function -1 * s__state + 8664 and consists of 4 locations. One deterministic module has affine ranking function -1 * s__state + 8600 and consists of 5 locations. 15 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 335 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 17 iterations. TraceHistogramMax:6. Analysis of lassos took 1.5s. Construction of modules took 0.8s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 23. Automata minimization 0.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 640 StatesRemovedByMinimization, 18 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 475 states and ocurred in iteration 14. Nontrivial modules had stage [8, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1484 SDtfs, 949 SDslu, 774 SDs, 0 SdLazy, 1619 SolverSat, 200 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT1 conc0 concLT2 SILN0 SILU0 SILI6 SILT5 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf99 lsp78 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq197 hnf87 smp100 dnf103 smp97 tf114 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 52]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, tmp___1=2, cb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5de7d2e1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33507f72=2, s__session__peer=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5127efc0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3148026=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cbaad=0, s__hit=0, buf=0, blastFlag=2, s__s3__tmp__new_cipher__algorithms=-256, s__verify_mode=4, s__state=8576} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 52]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L9] int s__state ; [L10] int s__hit = __VERIFIER_nondet_int() ; [L11] int s__verify_mode = __VERIFIER_nondet_int() ; [L12] int s__session__peer = __VERIFIER_nondet_int() ; [L13] unsigned long s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_long() ; [L14] int buf ; [L15] int cb ; [L16] int blastFlag ; [L17] int tmp___1; [L19] s__state = 8466 [L20] blastFlag = 0 [L22] COND TRUE 1 [L23] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L29] COND TRUE s__state == 8466 [L78] COND TRUE blastFlag == 0 [L79] blastFlag = 1 [L81] s__state = 8496 [L22] COND TRUE 1 [L23] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L29] COND FALSE !(s__state == 8466) [L32] COND TRUE s__state == 8496 [L85] COND TRUE blastFlag == 1 [L86] blastFlag = 2 [L88] COND FALSE !(\read(s__hit)) [L91] s__state = 8512 [L22] COND TRUE 1 [L23] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L29] COND FALSE !(s__state == 8466) [L32] COND FALSE !(s__state == 8496) [L36] COND TRUE s__state == 8512 [L96] s__state = 8528 [L22] COND TRUE 1 [L23] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L29] COND FALSE !(s__state == 8466) [L32] COND FALSE !(s__state == 8496) [L36] COND FALSE !(s__state == 8512) [L40] COND TRUE s__state == 8528 [L100] s__state = 8544 [L22] COND TRUE 1 [L23] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L29] COND FALSE !(s__state == 8466) [L32] COND FALSE !(s__state == 8496) [L36] COND FALSE !(s__state == 8512) [L40] COND FALSE !(s__state == 8528) [L44] COND TRUE s__state == 8544 [L104] COND TRUE s__verify_mode + 1 [L105] COND FALSE !(s__session__peer != 0) [L113] COND FALSE !(s__s3__tmp__new_cipher__algorithms + 256UL) [L121] s__state = 8576 [L22] COND TRUE 1 [L23] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L29] COND FALSE !(s__state == 8466) [L32] COND FALSE !(s__state == 8496) [L36] COND FALSE !(s__state == 8512) [L40] COND FALSE !(s__state == 8528) [L44] COND FALSE !(s__state == 8544) [L48] COND FALSE !(s__state == 8560) [L52] COND TRUE s__state == 8576 Loop: [L134] tmp___1 = __VERIFIER_nondet_int() [L135] COND TRUE tmp___1 == 2 [L136] s__state = 8466 [L22] COND TRUE 1 [L23] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L29] COND TRUE s__state == 8466 [L78] COND FALSE !(blastFlag == 0) [L81] s__state = 8496 [L22] COND TRUE 1 [L23] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L29] COND FALSE !(s__state == 8466) [L32] COND TRUE s__state == 8496 [L85] COND FALSE !(blastFlag == 1) [L88] COND FALSE !(\read(s__hit)) [L91] s__state = 8512 [L22] COND TRUE 1 [L23] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L29] COND FALSE !(s__state == 8466) [L32] COND FALSE !(s__state == 8496) [L36] COND TRUE s__state == 8512 [L96] s__state = 8528 [L22] COND TRUE 1 [L23] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L29] COND FALSE !(s__state == 8466) [L32] COND FALSE !(s__state == 8496) [L36] COND FALSE !(s__state == 8512) [L40] COND TRUE s__state == 8528 [L100] s__state = 8544 [L22] COND TRUE 1 [L23] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L29] COND FALSE !(s__state == 8466) [L32] COND FALSE !(s__state == 8496) [L36] COND FALSE !(s__state == 8512) [L40] COND FALSE !(s__state == 8528) [L44] COND TRUE s__state == 8544 [L104] COND TRUE s__verify_mode + 1 [L105] COND FALSE !(s__session__peer != 0) [L113] COND FALSE !(s__s3__tmp__new_cipher__algorithms + 256UL) [L121] s__state = 8576 [L22] COND TRUE 1 [L23] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L29] COND FALSE !(s__state == 8466) [L32] COND FALSE !(s__state == 8496) [L36] COND FALSE !(s__state == 8512) [L40] COND FALSE !(s__state == 8528) [L44] COND FALSE !(s__state == 8544) [L48] COND FALSE !(s__state == 8560) [L52] COND TRUE s__state == 8576 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...