./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/ssh-simplified/s3_srvr_1b_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ssh-simplified/s3_srvr_1b_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/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 91fda61e05234dbe68b069d372f5d4b0bb73b229 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.23-1dbac8b [2018-11-10 08:57:08,518 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:57:08,519 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:57:08,526 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:57:08,526 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:57:08,527 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:57:08,527 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:57:08,529 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:57:08,530 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:57:08,530 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:57:08,531 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:57:08,531 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:57:08,531 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:57:08,532 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:57:08,533 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:57:08,533 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:57:08,534 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:57:08,535 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:57:08,537 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:57:08,538 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:57:08,538 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:57:08,540 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:57:08,541 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:57:08,541 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:57:08,542 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:57:08,542 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:57:08,543 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:57:08,544 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:57:08,544 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:57:08,545 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:57:08,545 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:57:08,546 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:57:08,546 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:57:08,546 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:57:08,547 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:57:08,547 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:57:08,547 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-10 08:57:08,555 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:57:08,555 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:57:08,556 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 08:57:08,556 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 08:57:08,556 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 08:57:08,556 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 08:57:08,556 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 08:57:08,556 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 08:57:08,557 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 08:57:08,557 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 08:57:08,557 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 08:57:08,557 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:57:08,557 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 08:57:08,557 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 08:57:08,557 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:57:08,558 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 08:57:08,558 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:57:08,558 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 08:57:08,558 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 08:57:08,558 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 08:57:08,558 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 08:57:08,558 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:57:08,558 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 08:57:08,559 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 08:57:08,559 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:57:08,559 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:57:08,559 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 08:57:08,559 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:57:08,559 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 08:57:08,559 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 08:57:08,560 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 08:57:08,560 INFO L133 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/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/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 -> 91fda61e05234dbe68b069d372f5d4b0bb73b229 [2018-11-10 08:57:08,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:57:08,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:57:08,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:57:08,596 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:57:08,597 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:57:08,597 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/uautomizer/../../sv-benchmarks/c/ssh-simplified/s3_srvr_1b_true-unreach-call_false-termination.cil.c [2018-11-10 08:57:08,643 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/uautomizer/data/2c1fb989f/7134ddcadea04ef28e7a1d93df73653f/FLAGd6e632906 [2018-11-10 08:57:09,044 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:57:09,045 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/sv-benchmarks/c/ssh-simplified/s3_srvr_1b_true-unreach-call_false-termination.cil.c [2018-11-10 08:57:09,051 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/uautomizer/data/2c1fb989f/7134ddcadea04ef28e7a1d93df73653f/FLAGd6e632906 [2018-11-10 08:57:09,062 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/uautomizer/data/2c1fb989f/7134ddcadea04ef28e7a1d93df73653f [2018-11-10 08:57:09,065 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:57:09,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 08:57:09,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:57:09,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:57:09,068 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:57:09,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:57:09" (1/1) ... [2018-11-10 08:57:09,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e892343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:57:09, skipping insertion in model container [2018-11-10 08:57:09,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:57:09" (1/1) ... [2018-11-10 08:57:09,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:57:09,092 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:57:09,192 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:57:09,194 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:57:09,205 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:57:09,214 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:57:09,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:57:09 WrapperNode [2018-11-10 08:57:09,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:57:09,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 08:57:09,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 08:57:09,215 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 08:57:09,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:57:09" (1/1) ... [2018-11-10 08:57:09,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:57:09" (1/1) ... [2018-11-10 08:57:09,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 08:57:09,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:57:09,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:57:09,235 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:57:09,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:57:09" (1/1) ... [2018-11-10 08:57:09,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:57:09" (1/1) ... [2018-11-10 08:57:09,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:57:09" (1/1) ... [2018-11-10 08:57:09,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:57:09" (1/1) ... [2018-11-10 08:57:09,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:57:09" (1/1) ... [2018-11-10 08:57:09,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:57:09" (1/1) ... [2018-11-10 08:57:09,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:57:09" (1/1) ... [2018-11-10 08:57:09,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:57:09,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:57:09,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:57:09,247 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:57:09,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:57:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/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 [2018-11-10 08:57:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:57:09,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:57:09,422 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:57:09,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:57:09 BoogieIcfgContainer [2018-11-10 08:57:09,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:57:09,423 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 08:57:09,423 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 08:57:09,425 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 08:57:09,425 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:57:09,425 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 08:57:09" (1/3) ... [2018-11-10 08:57:09,426 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48835a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 08:57:09, skipping insertion in model container [2018-11-10 08:57:09,426 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:57:09,426 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:57:09" (2/3) ... [2018-11-10 08:57:09,426 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48835a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 08:57:09, skipping insertion in model container [2018-11-10 08:57:09,426 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:57:09,427 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:57:09" (3/3) ... [2018-11-10 08:57:09,428 INFO L375 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1b_true-unreach-call_false-termination.cil.c [2018-11-10 08:57:09,474 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 08:57:09,474 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 08:57:09,474 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 08:57:09,474 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 08:57:09,474 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:57:09,475 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:57:09,475 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 08:57:09,475 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:57:09,475 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 08:57:09,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2018-11-10 08:57:09,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2018-11-10 08:57:09,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:57:09,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:57:09,506 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 08:57:09,506 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-11-10 08:57:09,506 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 08:57:09,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2018-11-10 08:57:09,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2018-11-10 08:57:09,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:57:09,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:57:09,508 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 08:57:09,508 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-11-10 08:57:09,513 INFO L793 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 13#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~s__state~0, main_~s__hit~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 26#L100true [2018-11-10 08:57:09,513 INFO L795 eck$LassoCheckResult]: Loop: 26#L100true assume true; 6#L18-1true assume !false; 9#L19true assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 24#L25true assume main_~s__state~0 == 8466; 4#L26true assume main_~blastFlag~0 == 0;main_~blastFlag~0 := 2; 25#L58-1true assume !(main_~s__hit~0 != 0);main_~s__state~0 := 8512; 26#L100true [2018-11-10 08:57:09,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:09,517 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-10 08:57:09,518 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:09,518 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:09,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:09,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:09,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:09,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:09,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1070887826, now seen corresponding path program 1 times [2018-11-10 08:57:09,578 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:09,578 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:09,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:09,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:09,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:09,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:09,589 INFO L82 PathProgramCache]: Analyzing trace with hash 150937044, now seen corresponding path program 1 times [2018-11-10 08:57:09,589 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:09,589 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:09,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:09,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:09,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:09,666 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:57:09,666 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:57:09,667 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:57:09,667 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:57:09,667 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:57:09,667 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:57:09,667 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:57:09,667 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:57:09,667 INFO L131 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b_true-unreach-call_false-termination.cil.c_Iteration1_Loop [2018-11-10 08:57:09,667 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:57:09,668 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:57:09,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:09,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:09,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:09,788 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:57:09,789 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/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 [2018-11-10 08:57:09,804 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:57:09,804 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/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 [2018-11-10 08:57:09,838 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:57:09,838 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:57:09,859 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:57:09,860 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:57:09,861 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:57:09,861 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:57:09,861 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:57:09,861 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:57:09,861 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:57:09,861 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:57:09,861 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:57:09,861 INFO L131 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b_true-unreach-call_false-termination.cil.c_Iteration1_Loop [2018-11-10 08:57:09,861 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:57:09,861 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:57:09,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:09,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:09,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:09,910 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:57:09,913 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:57:09,914 INFO L122 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 [2018-11-10 08:57:09,915 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:57:09,915 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:57:09,916 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:57:09,916 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:57:09,916 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:57:09,917 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:57:09,918 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:57:09,926 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:57:09,931 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 08:57:09,931 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 08:57:09,933 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:57:09,933 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:57:09,933 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:57:09,934 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0) = -1*ULTIMATE.start_main_~s__state~0 + 8489 Supporting invariants [] [2018-11-10 08:57:09,935 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:57:09,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:09,958 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:57:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:09,965 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:57:09,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:57:09,984 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 [2018-11-10 08:57:09,985 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states. Second operand 4 states. [2018-11-10 08:57:10,075 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states.. Second operand 4 states. Result 72 states and 110 transitions. Complement of second has 8 states. [2018-11-10 08:57:10,076 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 [2018-11-10 08:57:10,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:57:10,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2018-11-10 08:57:10,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-10 08:57:10,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:57:10,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 8 letters. Loop has 6 letters. [2018-11-10 08:57:10,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:57:10,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 2 letters. Loop has 12 letters. [2018-11-10 08:57:10,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:57:10,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 110 transitions. [2018-11-10 08:57:10,083 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2018-11-10 08:57:10,085 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 40 states and 59 transitions. [2018-11-10 08:57:10,086 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2018-11-10 08:57:10,086 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2018-11-10 08:57:10,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 59 transitions. [2018-11-10 08:57:10,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:57:10,087 INFO L705 BuchiCegarLoop]: Abstraction has 40 states and 59 transitions. [2018-11-10 08:57:10,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 59 transitions. [2018-11-10 08:57:10,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 29. [2018-11-10 08:57:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-10 08:57:10,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 42 transitions. [2018-11-10 08:57:10,105 INFO L728 BuchiCegarLoop]: Abstraction has 29 states and 42 transitions. [2018-11-10 08:57:10,105 INFO L608 BuchiCegarLoop]: Abstraction has 29 states and 42 transitions. [2018-11-10 08:57:10,105 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 08:57:10,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 42 transitions. [2018-11-10 08:57:10,106 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2018-11-10 08:57:10,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:57:10,106 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:57:10,107 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-10 08:57:10,107 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:10,107 INFO L793 eck$LassoCheckResult]: Stem: 172#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 170#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~s__state~0, main_~s__hit~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 171#L100 assume true; 157#L18-1 assume !false; 158#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 164#L25 assume !(main_~s__state~0 == 8466); 167#L30 [2018-11-10 08:57:10,107 INFO L795 eck$LassoCheckResult]: Loop: 167#L30 assume main_~s__state~0 == 8512; 168#L31 main_~tmp___1~0 := main_#t~nondet1;havoc main_#t~nondet1; 155#L70 assume main_~tmp___1~0 != 0;main_~s__state~0 := 8466; 156#L100 assume true; 177#L18-1 assume !false; 176#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 175#L25 assume !(main_~s__state~0 == 8466); 167#L30 [2018-11-10 08:57:10,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:10,108 INFO L82 PathProgramCache]: Analyzing trace with hash 889541550, now seen corresponding path program 1 times [2018-11-10 08:57:10,108 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:10,108 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:10,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:10,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:10,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:10,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:57:10,133 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:57:10,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 08:57:10,135 INFO L798 eck$LassoCheckResult]: stem already infeasible [2018-11-10 08:57:10,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:10,135 INFO L82 PathProgramCache]: Analyzing trace with hash -299701082, now seen corresponding path program 1 times [2018-11-10 08:57:10,135 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:10,135 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:10,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:10,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:10,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:10,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:57:10,147 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:57:10,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 08:57:10,147 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-10 08:57:10,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:57:10,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:57:10,150 INFO L87 Difference]: Start difference. First operand 29 states and 42 transitions. cyclomatic complexity: 15 Second operand 3 states. [2018-11-10 08:57:10,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:57:10,166 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2018-11-10 08:57:10,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:57:10,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 51 transitions. [2018-11-10 08:57:10,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2018-11-10 08:57:10,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 36 states and 48 transitions. [2018-11-10 08:57:10,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2018-11-10 08:57:10,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2018-11-10 08:57:10,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 48 transitions. [2018-11-10 08:57:10,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:57:10,168 INFO L705 BuchiCegarLoop]: Abstraction has 36 states and 48 transitions. [2018-11-10 08:57:10,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 48 transitions. [2018-11-10 08:57:10,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2018-11-10 08:57:10,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 08:57:10,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2018-11-10 08:57:10,170 INFO L728 BuchiCegarLoop]: Abstraction has 33 states and 45 transitions. [2018-11-10 08:57:10,170 INFO L608 BuchiCegarLoop]: Abstraction has 33 states and 45 transitions. [2018-11-10 08:57:10,171 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 08:57:10,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 45 transitions. [2018-11-10 08:57:10,171 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2018-11-10 08:57:10,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:57:10,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:57:10,172 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:10,172 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:10,172 INFO L793 eck$LassoCheckResult]: Stem: 249#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 246#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~s__state~0, main_~s__hit~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 247#L100 assume true; 235#L18-1 assume !false; 236#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 241#L25 assume main_~s__state~0 == 8466; 228#L26 assume !(main_~blastFlag~0 == 0); 229#L58-1 assume main_~s__hit~0 != 0;main_~s__state~0 := 8656; 251#L100 assume true; 252#L18-1 assume !false; 253#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 250#L25 assume !(main_~s__state~0 == 8466); 243#L30 [2018-11-10 08:57:10,172 INFO L795 eck$LassoCheckResult]: Loop: 243#L30 assume main_~s__state~0 == 8512; 244#L31 main_~tmp___1~0 := main_#t~nondet1;havoc main_#t~nondet1; 230#L70 assume !(main_~tmp___1~0 != 0);main_~s__state~0 := 8640; 232#L100 assume true; 256#L18-1 assume !false; 255#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 254#L25 assume !(main_~s__state~0 == 8466); 243#L30 [2018-11-10 08:57:10,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:10,173 INFO L82 PathProgramCache]: Analyzing trace with hash 421822331, now seen corresponding path program 1 times [2018-11-10 08:57:10,173 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:10,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:10,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:10,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:10,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:10,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:57:10,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:57:10,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 08:57:10,184 INFO L798 eck$LassoCheckResult]: stem already infeasible [2018-11-10 08:57:10,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:10,184 INFO L82 PathProgramCache]: Analyzing trace with hash -297854040, now seen corresponding path program 1 times [2018-11-10 08:57:10,184 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:10,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:10,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:10,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:10,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:10,216 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:57:10,216 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:57:10,216 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:57:10,216 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:57:10,216 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:57:10,216 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:57:10,217 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:57:10,217 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:57:10,217 INFO L131 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b_true-unreach-call_false-termination.cil.c_Iteration3_Loop [2018-11-10 08:57:10,217 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:57:10,217 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:57:10,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:10,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:10,273 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:57:10,274 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/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 [2018-11-10 08:57:10,277 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:57:10,277 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:57:10,281 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:57:10,282 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0, ULTIMATE.start_main_~tmp___1~0=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0, ULTIMATE.start_main_~tmp___1~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/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 [2018-11-10 08:57:10,299 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:57:10,299 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/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 [2018-11-10 08:57:10,328 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:57:10,328 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:57:10,347 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:57:10,347 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:57:10,348 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:57:10,348 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:57:10,348 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:57:10,348 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:57:10,348 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:57:10,348 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:57:10,348 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:57:10,348 INFO L131 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b_true-unreach-call_false-termination.cil.c_Iteration3_Loop [2018-11-10 08:57:10,348 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:57:10,348 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:57:10,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:10,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:10,383 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:57:10,383 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:57:10,383 INFO L122 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 [2018-11-10 08:57:10,384 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:57:10,384 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:57:10,384 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:57:10,385 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:57:10,385 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:57:10,385 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:57:10,385 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:57:10,389 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:57:10,390 INFO L122 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 [2018-11-10 08:57:10,390 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:57:10,390 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:57:10,390 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:57:10,390 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:57:10,390 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:57:10,391 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:57:10,391 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:57:10,395 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:57:10,398 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 08:57:10,398 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 08:57:10,398 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:57:10,398 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:57:10,398 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:57:10,398 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0) = -1*ULTIMATE.start_main_~s__state~0 + 8576 Supporting invariants [] [2018-11-10 08:57:10,399 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:57:10,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:10,443 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:57:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:10,449 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:57:10,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:57:10,462 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 [2018-11-10 08:57:10,462 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 45 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-11-10 08:57:10,527 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 45 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 99 states and 144 transitions. Complement of second has 9 states. [2018-11-10 08:57:10,528 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 [2018-11-10 08:57:10,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:57:10,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 59 transitions. [2018-11-10 08:57:10,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 59 transitions. Stem has 12 letters. Loop has 7 letters. [2018-11-10 08:57:10,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:57:10,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 59 transitions. Stem has 19 letters. Loop has 7 letters. [2018-11-10 08:57:10,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:57:10,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 59 transitions. Stem has 12 letters. Loop has 14 letters. [2018-11-10 08:57:10,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:57:10,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 144 transitions. [2018-11-10 08:57:10,534 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 36 [2018-11-10 08:57:10,535 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 89 states and 126 transitions. [2018-11-10 08:57:10,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2018-11-10 08:57:10,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 63 [2018-11-10 08:57:10,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 126 transitions. [2018-11-10 08:57:10,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:57:10,536 INFO L705 BuchiCegarLoop]: Abstraction has 89 states and 126 transitions. [2018-11-10 08:57:10,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 126 transitions. [2018-11-10 08:57:10,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 69. [2018-11-10 08:57:10,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-10 08:57:10,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 94 transitions. [2018-11-10 08:57:10,541 INFO L728 BuchiCegarLoop]: Abstraction has 69 states and 94 transitions. [2018-11-10 08:57:10,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:57:10,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:57:10,542 INFO L87 Difference]: Start difference. First operand 69 states and 94 transitions. Second operand 3 states. [2018-11-10 08:57:10,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:57:10,557 INFO L93 Difference]: Finished difference Result 73 states and 98 transitions. [2018-11-10 08:57:10,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:57:10,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 98 transitions. [2018-11-10 08:57:10,558 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 34 [2018-11-10 08:57:10,559 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 73 states and 98 transitions. [2018-11-10 08:57:10,559 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2018-11-10 08:57:10,559 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2018-11-10 08:57:10,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 98 transitions. [2018-11-10 08:57:10,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:57:10,560 INFO L705 BuchiCegarLoop]: Abstraction has 73 states and 98 transitions. [2018-11-10 08:57:10,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 98 transitions. [2018-11-10 08:57:10,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-11-10 08:57:10,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-10 08:57:10,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 98 transitions. [2018-11-10 08:57:10,563 INFO L728 BuchiCegarLoop]: Abstraction has 73 states and 98 transitions. [2018-11-10 08:57:10,563 INFO L608 BuchiCegarLoop]: Abstraction has 73 states and 98 transitions. [2018-11-10 08:57:10,564 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 08:57:10,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 98 transitions. [2018-11-10 08:57:10,564 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 34 [2018-11-10 08:57:10,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:57:10,565 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:57:10,565 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:10,565 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:10,565 INFO L793 eck$LassoCheckResult]: Stem: 612#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 609#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~s__state~0, main_~s__hit~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 610#L100 assume true; 637#L18-1 assume !false; 638#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 636#L25 assume main_~s__state~0 == 8466; 628#L26 assume main_~blastFlag~0 == 0;main_~blastFlag~0 := 2; 627#L58-1 assume main_~s__hit~0 != 0;main_~s__state~0 := 8656; 625#L100 assume true; 623#L18-1 assume !false; 621#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 619#L25 assume !(main_~s__state~0 == 8466); 616#L30 assume main_~s__state~0 == 8512; 606#L31 [2018-11-10 08:57:10,565 INFO L795 eck$LassoCheckResult]: Loop: 606#L31 main_~tmp___1~0 := main_#t~nondet1;havoc main_#t~nondet1; 589#L70 assume main_~tmp___1~0 != 0;main_~s__state~0 := 8466; 590#L100 assume true; 594#L18-1 assume !false; 595#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 602#L25 assume main_~s__state~0 == 8466; 614#L26 assume main_~blastFlag~0 == 0;main_~blastFlag~0 := 2; 643#L58-1 assume !(main_~s__hit~0 != 0);main_~s__state~0 := 8512; 642#L100 assume true; 641#L18-1 assume !false; 640#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 639#L25 assume !(main_~s__state~0 == 8466); 605#L30 assume main_~s__state~0 == 8512; 606#L31 [2018-11-10 08:57:10,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:10,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1583416964, now seen corresponding path program 1 times [2018-11-10 08:57:10,566 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:10,566 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:10,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:10,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:10,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:57:10,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:57:10,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 08:57:10,581 INFO L798 eck$LassoCheckResult]: stem already infeasible [2018-11-10 08:57:10,581 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:10,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1351796327, now seen corresponding path program 1 times [2018-11-10 08:57:10,581 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:10,581 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:10,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:10,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:10,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:10,644 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:57:10,645 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:57:10,645 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:57:10,645 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:57:10,645 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:57:10,645 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:57:10,645 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:57:10,645 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:57:10,645 INFO L131 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b_true-unreach-call_false-termination.cil.c_Iteration4_Loop [2018-11-10 08:57:10,646 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:57:10,646 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:57:10,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:10,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:10,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:10,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:10,701 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:57:10,701 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/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 [2018-11-10 08:57:10,708 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:57:10,708 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:57:10,710 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:57:10,711 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~s__hit~0=0} Honda state: {ULTIMATE.start_main_~s__hit~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/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 [2018-11-10 08:57:10,726 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:57:10,726 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/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 [2018-11-10 08:57:10,747 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:57:10,748 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:57:10,751 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:57:10,774 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:57:10,774 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:57:10,774 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:57:10,774 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:57:10,774 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:57:10,774 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:57:10,774 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:57:10,774 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:57:10,774 INFO L131 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b_true-unreach-call_false-termination.cil.c_Iteration4_Loop [2018-11-10 08:57:10,775 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:57:10,775 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:57:10,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:10,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:10,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:10,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:10,840 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:57:10,840 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:57:10,841 INFO L122 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 [2018-11-10 08:57:10,841 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:57:10,841 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:57:10,842 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:57:10,842 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:57:10,842 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:57:10,842 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:57:10,842 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:57:10,843 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:57:10,843 INFO L122 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 [2018-11-10 08:57:10,844 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:57:10,844 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:57:10,844 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:57:10,844 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:57:10,844 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:57:10,845 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:57:10,845 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:57:10,848 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:57:10,850 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 08:57:10,850 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 08:57:10,850 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:57:10,850 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:57:10,850 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:57:10,851 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~blastFlag~0) = -1*ULTIMATE.start_main_~blastFlag~0 + 1 Supporting invariants [] [2018-11-10 08:57:10,851 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:57:10,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:10,876 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:57:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:10,881 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:57:10,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:57:10,890 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 [2018-11-10 08:57:10,890 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 73 states and 98 transitions. cyclomatic complexity: 29 Second operand 4 states. [2018-11-10 08:57:10,920 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 73 states and 98 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 155 states and 217 transitions. Complement of second has 4 states. [2018-11-10 08:57:10,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 08:57:10,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:57:10,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2018-11-10 08:57:10,921 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 13 letters. Loop has 13 letters. [2018-11-10 08:57:10,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:57:10,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 26 letters. Loop has 13 letters. [2018-11-10 08:57:10,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:57:10,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 13 letters. Loop has 26 letters. [2018-11-10 08:57:10,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:57:10,923 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 155 states and 217 transitions. [2018-11-10 08:57:10,925 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 49 [2018-11-10 08:57:10,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 155 states to 155 states and 217 transitions. [2018-11-10 08:57:10,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2018-11-10 08:57:10,927 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2018-11-10 08:57:10,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 155 states and 217 transitions. [2018-11-10 08:57:10,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:57:10,927 INFO L705 BuchiCegarLoop]: Abstraction has 155 states and 217 transitions. [2018-11-10 08:57:10,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states and 217 transitions. [2018-11-10 08:57:10,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 151. [2018-11-10 08:57:10,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-11-10 08:57:10,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 212 transitions. [2018-11-10 08:57:10,934 INFO L728 BuchiCegarLoop]: Abstraction has 151 states and 212 transitions. [2018-11-10 08:57:10,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:57:10,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:57:10,935 INFO L87 Difference]: Start difference. First operand 151 states and 212 transitions. Second operand 3 states. [2018-11-10 08:57:10,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:57:10,951 INFO L93 Difference]: Finished difference Result 198 states and 259 transitions. [2018-11-10 08:57:10,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:57:10,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 259 transitions. [2018-11-10 08:57:10,953 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 63 [2018-11-10 08:57:10,954 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 187 states and 248 transitions. [2018-11-10 08:57:10,954 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 87 [2018-11-10 08:57:10,954 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 90 [2018-11-10 08:57:10,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 187 states and 248 transitions. [2018-11-10 08:57:10,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:57:10,955 INFO L705 BuchiCegarLoop]: Abstraction has 187 states and 248 transitions. [2018-11-10 08:57:10,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states and 248 transitions. [2018-11-10 08:57:10,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 171. [2018-11-10 08:57:10,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-11-10 08:57:10,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 232 transitions. [2018-11-10 08:57:10,959 INFO L728 BuchiCegarLoop]: Abstraction has 171 states and 232 transitions. [2018-11-10 08:57:10,959 INFO L608 BuchiCegarLoop]: Abstraction has 171 states and 232 transitions. [2018-11-10 08:57:10,959 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-10 08:57:10,959 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 232 transitions. [2018-11-10 08:57:10,960 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 61 [2018-11-10 08:57:10,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:57:10,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:57:10,961 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:10,961 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:10,961 INFO L793 eck$LassoCheckResult]: Stem: 1296#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1292#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~s__state~0, main_~s__hit~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 1293#L100 assume true; 1379#L18-1 assume !false; 1378#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1377#L25 assume main_~s__state~0 == 8466; 1370#L26 assume main_~blastFlag~0 == 0;main_~blastFlag~0 := 2; 1369#L58-1 assume main_~s__hit~0 != 0;main_~s__state~0 := 8656; 1301#L100 [2018-11-10 08:57:10,961 INFO L795 eck$LassoCheckResult]: Loop: 1301#L100 assume true; 1388#L18-1 assume !false; 1387#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1383#L25 assume !(main_~s__state~0 == 8466); 1363#L30 assume !(main_~s__state~0 == 8512); 1359#L46 assume !(main_~s__state~0 == 8640); 1357#L50 assume main_~s__state~0 == 8656; 1285#L51 assume main_~blastFlag~0 == 2;main_~blastFlag~0 := 3; 1286#L89-1 assume main_~blastFlag~0 == 4;main_~blastFlag~0 := 5; 1298#L93-1 assume main_~s__hit~0 != 0;main_~s__state~0 := 8640; 1353#L100 assume true; 1352#L18-1 assume !false; 1351#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1349#L25 assume main_~s__state~0 == 8466; 1350#L26 assume main_~blastFlag~0 == 0;main_~blastFlag~0 := 2; 1354#L58-1 assume main_~s__hit~0 != 0;main_~s__state~0 := 8656; 1301#L100 [2018-11-10 08:57:10,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:10,962 INFO L82 PathProgramCache]: Analyzing trace with hash 150937042, now seen corresponding path program 1 times [2018-11-10 08:57:10,962 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:10,962 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:10,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:10,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:10,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:10,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:10,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1285792690, now seen corresponding path program 1 times [2018-11-10 08:57:10,967 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:10,967 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:10,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:10,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:10,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:10,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:57:10,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:57:10,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 08:57:10,979 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-10 08:57:10,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:57:10,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:57:10,980 INFO L87 Difference]: Start difference. First operand 171 states and 232 transitions. cyclomatic complexity: 69 Second operand 3 states. [2018-11-10 08:57:10,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:57:10,999 INFO L93 Difference]: Finished difference Result 247 states and 331 transitions. [2018-11-10 08:57:10,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:57:10,999 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 247 states and 331 transitions. [2018-11-10 08:57:11,001 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 109 [2018-11-10 08:57:11,003 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 247 states to 247 states and 331 transitions. [2018-11-10 08:57:11,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 127 [2018-11-10 08:57:11,003 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 127 [2018-11-10 08:57:11,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 247 states and 331 transitions. [2018-11-10 08:57:11,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:57:11,004 INFO L705 BuchiCegarLoop]: Abstraction has 247 states and 331 transitions. [2018-11-10 08:57:11,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states and 331 transitions. [2018-11-10 08:57:11,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2018-11-10 08:57:11,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2018-11-10 08:57:11,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 331 transitions. [2018-11-10 08:57:11,011 INFO L728 BuchiCegarLoop]: Abstraction has 247 states and 331 transitions. [2018-11-10 08:57:11,011 INFO L608 BuchiCegarLoop]: Abstraction has 247 states and 331 transitions. [2018-11-10 08:57:11,011 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-10 08:57:11,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 247 states and 331 transitions. [2018-11-10 08:57:11,012 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 109 [2018-11-10 08:57:11,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:57:11,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:57:11,013 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:11,013 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:11,013 INFO L793 eck$LassoCheckResult]: Stem: 1726#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1720#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~s__state~0, main_~s__hit~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 1721#L100 assume true; 1869#L18-1 assume !false; 1868#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1866#L25 assume main_~s__state~0 == 8466; 1852#L26 assume main_~blastFlag~0 == 0;main_~blastFlag~0 := 2; 1851#L58-1 assume main_~s__hit~0 != 0;main_~s__state~0 := 8656; 1846#L100 [2018-11-10 08:57:11,013 INFO L795 eck$LassoCheckResult]: Loop: 1846#L100 assume true; 1861#L18-1 assume !false; 1860#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1859#L25 assume !(main_~s__state~0 == 8466); 1858#L30 assume !(main_~s__state~0 == 8512); 1857#L46 assume !(main_~s__state~0 == 8640); 1836#L50 assume main_~s__state~0 == 8656; 1854#L51 assume main_~blastFlag~0 == 2;main_~blastFlag~0 := 3; 1795#L89-1 assume !(main_~blastFlag~0 == 4); 1850#L96 assume !(main_~blastFlag~0 == 5); 1847#L93-1 assume main_~s__hit~0 != 0;main_~s__state~0 := 8640; 1844#L100 assume true; 1842#L18-1 assume !false; 1837#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 1831#L25 assume main_~s__state~0 == 8466; 1832#L26 assume main_~blastFlag~0 == 0;main_~blastFlag~0 := 2; 1791#L58-1 assume main_~s__hit~0 != 0;main_~s__state~0 := 8656; 1846#L100 [2018-11-10 08:57:11,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:11,013 INFO L82 PathProgramCache]: Analyzing trace with hash 150937042, now seen corresponding path program 2 times [2018-11-10 08:57:11,013 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:11,013 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:11,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:11,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:11,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:11,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1455518701, now seen corresponding path program 1 times [2018-11-10 08:57:11,018 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:11,018 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:11,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,019 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:57:11,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:57:11,033 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:57:11,033 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 08:57:11,033 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-10 08:57:11,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:57:11,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:57:11,033 INFO L87 Difference]: Start difference. First operand 247 states and 331 transitions. cyclomatic complexity: 92 Second operand 3 states. [2018-11-10 08:57:11,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:57:11,046 INFO L93 Difference]: Finished difference Result 213 states and 260 transitions. [2018-11-10 08:57:11,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:57:11,047 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 213 states and 260 transitions. [2018-11-10 08:57:11,048 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 89 [2018-11-10 08:57:11,049 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 213 states to 158 states and 193 transitions. [2018-11-10 08:57:11,049 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 105 [2018-11-10 08:57:11,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 106 [2018-11-10 08:57:11,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 158 states and 193 transitions. [2018-11-10 08:57:11,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:57:11,050 INFO L705 BuchiCegarLoop]: Abstraction has 158 states and 193 transitions. [2018-11-10 08:57:11,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states and 193 transitions. [2018-11-10 08:57:11,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 111. [2018-11-10 08:57:11,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-11-10 08:57:11,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 137 transitions. [2018-11-10 08:57:11,053 INFO L728 BuchiCegarLoop]: Abstraction has 111 states and 137 transitions. [2018-11-10 08:57:11,053 INFO L608 BuchiCegarLoop]: Abstraction has 111 states and 137 transitions. [2018-11-10 08:57:11,053 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-10 08:57:11,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 137 transitions. [2018-11-10 08:57:11,054 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2018-11-10 08:57:11,054 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:57:11,054 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:57:11,054 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:11,054 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:11,055 INFO L793 eck$LassoCheckResult]: Stem: 2180#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2177#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~s__state~0, main_~s__hit~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 2178#L100 assume true; 2161#L18-1 assume !false; 2162#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 2167#L25 assume main_~s__state~0 == 8466; 2183#L26 assume main_~blastFlag~0 == 0;main_~blastFlag~0 := 2; 2202#L58-1 assume main_~s__hit~0 != 0;main_~s__state~0 := 8656; 2181#L100 [2018-11-10 08:57:11,055 INFO L795 eck$LassoCheckResult]: Loop: 2181#L100 assume true; 2257#L18-1 assume !false; 2256#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 2255#L25 assume !(main_~s__state~0 == 8466); 2254#L30 assume !(main_~s__state~0 == 8512); 2182#L46 assume !(main_~s__state~0 == 8640); 2164#L50 assume main_~s__state~0 == 8656; 2165#L51 assume main_~blastFlag~0 == 2;main_~blastFlag~0 := 3; 2169#L89-1 assume !(main_~blastFlag~0 == 4); 2179#L96 assume !(main_~blastFlag~0 == 5); 2163#L93-1 assume main_~s__hit~0 != 0;main_~s__state~0 := 8640; 2158#L100 assume true; 2159#L18-1 assume !false; 2160#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 2166#L25 assume !(main_~s__state~0 == 8466); 2171#L30 assume !(main_~s__state~0 == 8512); 2172#L46 assume main_~s__state~0 == 8640; 2147#L47 assume !(main_~blastFlag~0 == 3); 2148#L78-1 assume !(main_~s__hit~0 != 0);main_~s__state~0 := 8656; 2181#L100 [2018-11-10 08:57:11,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:11,055 INFO L82 PathProgramCache]: Analyzing trace with hash 150937042, now seen corresponding path program 3 times [2018-11-10 08:57:11,055 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:11,055 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:11,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:11,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:11,060 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:11,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1404451150, now seen corresponding path program 1 times [2018-11-10 08:57:11,061 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:11,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:11,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,061 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:57:11,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:11,088 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:57:11,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:57:11,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 08:57:11,088 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-10 08:57:11,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:57:11,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:57:11,089 INFO L87 Difference]: Start difference. First operand 111 states and 137 transitions. cyclomatic complexity: 32 Second operand 3 states. [2018-11-10 08:57:11,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:57:11,106 INFO L93 Difference]: Finished difference Result 123 states and 150 transitions. [2018-11-10 08:57:11,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:57:11,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 150 transitions. [2018-11-10 08:57:11,107 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 63 [2018-11-10 08:57:11,107 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 123 states and 150 transitions. [2018-11-10 08:57:11,108 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2018-11-10 08:57:11,108 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2018-11-10 08:57:11,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 123 states and 150 transitions. [2018-11-10 08:57:11,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:57:11,108 INFO L705 BuchiCegarLoop]: Abstraction has 123 states and 150 transitions. [2018-11-10 08:57:11,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states and 150 transitions. [2018-11-10 08:57:11,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-11-10 08:57:11,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-11-10 08:57:11,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 150 transitions. [2018-11-10 08:57:11,111 INFO L728 BuchiCegarLoop]: Abstraction has 123 states and 150 transitions. [2018-11-10 08:57:11,111 INFO L608 BuchiCegarLoop]: Abstraction has 123 states and 150 transitions. [2018-11-10 08:57:11,111 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-10 08:57:11,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states and 150 transitions. [2018-11-10 08:57:11,112 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 63 [2018-11-10 08:57:11,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:57:11,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:57:11,112 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:11,113 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:11,113 INFO L793 eck$LassoCheckResult]: Stem: 2418#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2415#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~s__state~0, main_~s__hit~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 2416#L100 assume true; 2476#L18-1 assume !false; 2475#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 2474#L25 assume main_~s__state~0 == 8466; 2469#L26 assume main_~blastFlag~0 == 0;main_~blastFlag~0 := 2; 2466#L58-1 assume main_~s__hit~0 != 0;main_~s__state~0 := 8656; 2465#L100 [2018-11-10 08:57:11,113 INFO L795 eck$LassoCheckResult]: Loop: 2465#L100 assume true; 2503#L18-1 assume !false; 2502#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 2501#L25 assume !(main_~s__state~0 == 8466); 2500#L30 assume !(main_~s__state~0 == 8512); 2499#L46 assume !(main_~s__state~0 == 8640); 2440#L50 assume main_~s__state~0 == 8656; 2441#L51 assume !(main_~blastFlag~0 == 2); 2420#L89-1 assume !(main_~blastFlag~0 == 4); 2417#L96 assume !(main_~blastFlag~0 == 5); 2403#L93-1 assume main_~s__hit~0 != 0;main_~s__state~0 := 8640; 2398#L100 assume true; 2399#L18-1 assume !false; 2400#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 2406#L25 assume !(main_~s__state~0 == 8466); 2422#L30 assume !(main_~s__state~0 == 8512); 2442#L46 assume main_~s__state~0 == 8640; 2498#L47 assume !(main_~blastFlag~0 == 3); 2504#L78-1 assume !(main_~s__hit~0 != 0);main_~s__state~0 := 8656; 2465#L100 [2018-11-10 08:57:11,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:11,113 INFO L82 PathProgramCache]: Analyzing trace with hash 150937042, now seen corresponding path program 4 times [2018-11-10 08:57:11,113 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:11,113 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:11,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:11,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:11,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:11,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1146285712, now seen corresponding path program 1 times [2018-11-10 08:57:11,119 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:11,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:11,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,120 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:57:11,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:11,138 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:57:11,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:57:11,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 08:57:11,139 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-10 08:57:11,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:57:11,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:57:11,139 INFO L87 Difference]: Start difference. First operand 123 states and 150 transitions. cyclomatic complexity: 34 Second operand 3 states. [2018-11-10 08:57:11,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:57:11,151 INFO L93 Difference]: Finished difference Result 151 states and 181 transitions. [2018-11-10 08:57:11,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:57:11,151 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 151 states and 181 transitions. [2018-11-10 08:57:11,152 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 46 [2018-11-10 08:57:11,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 151 states to 146 states and 173 transitions. [2018-11-10 08:57:11,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94 [2018-11-10 08:57:11,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2018-11-10 08:57:11,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 146 states and 173 transitions. [2018-11-10 08:57:11,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:57:11,153 INFO L705 BuchiCegarLoop]: Abstraction has 146 states and 173 transitions. [2018-11-10 08:57:11,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states and 173 transitions. [2018-11-10 08:57:11,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 115. [2018-11-10 08:57:11,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-11-10 08:57:11,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 139 transitions. [2018-11-10 08:57:11,155 INFO L728 BuchiCegarLoop]: Abstraction has 115 states and 139 transitions. [2018-11-10 08:57:11,155 INFO L608 BuchiCegarLoop]: Abstraction has 115 states and 139 transitions. [2018-11-10 08:57:11,155 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-11-10 08:57:11,155 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 115 states and 139 transitions. [2018-11-10 08:57:11,156 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 46 [2018-11-10 08:57:11,156 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:57:11,156 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:57:11,156 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:11,157 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:11,157 INFO L793 eck$LassoCheckResult]: Stem: 2701#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2697#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~s__state~0, main_~s__hit~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 2698#L100 assume true; 2756#L18-1 assume !false; 2755#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 2753#L25 assume main_~s__state~0 == 8466; 2750#L26 assume main_~blastFlag~0 == 0;main_~blastFlag~0 := 2; 2706#L58-1 assume main_~s__hit~0 != 0;main_~s__state~0 := 8656; 2684#L100 [2018-11-10 08:57:11,157 INFO L795 eck$LassoCheckResult]: Loop: 2684#L100 assume true; 2679#L18-1 assume !false; 2680#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 2779#L25 assume !(main_~s__state~0 == 8466); 2778#L30 assume !(main_~s__state~0 == 8512); 2777#L46 assume !(main_~s__state~0 == 8640); 2685#L50 assume main_~s__state~0 == 8656; 2686#L51 assume !(main_~blastFlag~0 == 2); 2702#L89-1 assume !(main_~blastFlag~0 == 4); 2703#L96 assume !(main_~blastFlag~0 == 5); 2683#L93-1 assume main_~s__hit~0 != 0;main_~s__state~0 := 8640; 2684#L100 [2018-11-10 08:57:11,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:11,157 INFO L82 PathProgramCache]: Analyzing trace with hash 150937042, now seen corresponding path program 5 times [2018-11-10 08:57:11,157 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:11,157 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:11,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:11,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:11,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:11,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1957121316, now seen corresponding path program 1 times [2018-11-10 08:57:11,161 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:11,162 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:11,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,162 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:57:11,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:11,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:11,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1531086741, now seen corresponding path program 1 times [2018-11-10 08:57:11,167 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:11,167 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:11,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:11,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:11,185 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:57:11,185 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:57:11,185 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 08:57:11,209 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:57:11,210 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:57:11,210 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:57:11,210 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:57:11,210 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:57:11,210 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:57:11,210 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:57:11,210 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:57:11,210 INFO L131 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b_true-unreach-call_false-termination.cil.c_Iteration9_Loop [2018-11-10 08:57:11,210 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:57:11,210 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:57:11,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:11,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:11,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:11,295 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:57:11,295 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/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 [2018-11-10 08:57:11,297 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:57:11,298 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:57:11,301 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:57:11,301 INFO L446 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/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/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 [2018-11-10 08:57:11,328 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:57:11,328 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/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 [2018-11-10 08:57:11,352 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:57:11,352 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:57:11,369 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:57:11,370 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:57:11,370 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:57:11,370 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:57:11,370 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:57:11,370 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:57:11,371 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:57:11,371 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:57:11,371 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:57:11,371 INFO L131 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b_true-unreach-call_false-termination.cil.c_Iteration9_Loop [2018-11-10 08:57:11,371 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:57:11,371 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:57:11,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:11,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:11,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:57:11,433 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:57:11,433 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:57:11,434 INFO L122 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 [2018-11-10 08:57:11,434 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:57:11,434 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:57:11,435 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:57:11,435 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-10 08:57:11,435 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:57:11,435 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-10 08:57:11,436 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:57:11,437 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:57:11,437 INFO L122 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 [2018-11-10 08:57:11,437 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:57:11,439 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:57:11,439 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:57:11,439 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:57:11,439 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:57:11,440 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:57:11,440 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:57:11,442 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:57:11,443 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 08:57:11,443 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 08:57:11,444 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:57:11,444 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:57:11,444 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:57:11,444 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0) = 1*ULTIMATE.start_main_~s__state~0 Supporting invariants [] [2018-11-10 08:57:11,444 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:57:11,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:11,476 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:57:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:57:11,480 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:57:11,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:57:11,485 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 [2018-11-10 08:57:11,485 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 115 states and 139 transitions. cyclomatic complexity: 32 Second operand 4 states. [2018-11-10 08:57:11,502 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 115 states and 139 transitions. cyclomatic complexity: 32. Second operand 4 states. Result 158 states and 185 transitions. Complement of second has 6 states. [2018-11-10 08:57:11,502 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 [2018-11-10 08:57:11,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:57:11,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2018-11-10 08:57:11,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 40 transitions. Stem has 8 letters. Loop has 11 letters. [2018-11-10 08:57:11,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:57:11,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 40 transitions. Stem has 19 letters. Loop has 11 letters. [2018-11-10 08:57:11,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:57:11,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 40 transitions. Stem has 8 letters. Loop has 22 letters. [2018-11-10 08:57:11,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:57:11,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 185 transitions. [2018-11-10 08:57:11,505 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 46 [2018-11-10 08:57:11,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 115 states and 136 transitions. [2018-11-10 08:57:11,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2018-11-10 08:57:11,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 63 [2018-11-10 08:57:11,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 136 transitions. [2018-11-10 08:57:11,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:57:11,506 INFO L705 BuchiCegarLoop]: Abstraction has 115 states and 136 transitions. [2018-11-10 08:57:11,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 136 transitions. [2018-11-10 08:57:11,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-11-10 08:57:11,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-11-10 08:57:11,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 136 transitions. [2018-11-10 08:57:11,508 INFO L728 BuchiCegarLoop]: Abstraction has 115 states and 136 transitions. [2018-11-10 08:57:11,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:57:11,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:57:11,508 INFO L87 Difference]: Start difference. First operand 115 states and 136 transitions. Second operand 3 states. [2018-11-10 08:57:11,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:57:11,522 INFO L93 Difference]: Finished difference Result 98 states and 110 transitions. [2018-11-10 08:57:11,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:57:11,522 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 110 transitions. [2018-11-10 08:57:11,523 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 24 [2018-11-10 08:57:11,523 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 72 states and 80 transitions. [2018-11-10 08:57:11,523 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2018-11-10 08:57:11,524 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2018-11-10 08:57:11,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 80 transitions. [2018-11-10 08:57:11,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:57:11,524 INFO L705 BuchiCegarLoop]: Abstraction has 72 states and 80 transitions. [2018-11-10 08:57:11,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 80 transitions. [2018-11-10 08:57:11,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2018-11-10 08:57:11,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-11-10 08:57:11,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2018-11-10 08:57:11,525 INFO L728 BuchiCegarLoop]: Abstraction has 70 states and 78 transitions. [2018-11-10 08:57:11,525 INFO L608 BuchiCegarLoop]: Abstraction has 70 states and 78 transitions. [2018-11-10 08:57:11,525 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-11-10 08:57:11,526 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states and 78 transitions. [2018-11-10 08:57:11,526 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 24 [2018-11-10 08:57:11,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:57:11,526 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:57:11,526 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:11,526 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:57:11,526 INFO L793 eck$LassoCheckResult]: Stem: 3264#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 3262#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~s__state~0, main_~s__hit~0, main_~blastFlag~0, main_~tmp___1~0;havoc main_~s__state~0;main_~s__hit~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~blastFlag~0;havoc main_~tmp___1~0;main_~s__state~0 := 8466;main_~blastFlag~0 := 0; 3263#L100 assume true; 3294#L18-1 assume !false; 3293#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 3292#L25 assume main_~s__state~0 == 8466; 3290#L26 assume main_~blastFlag~0 == 0;main_~blastFlag~0 := 2; 3240#L58-1 assume !(main_~s__hit~0 != 0);main_~s__state~0 := 8512; 3270#L100 assume true; 3246#L18-1 assume !false; 3247#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 3254#L25 assume !(main_~s__state~0 == 8466); 3295#L30 assume main_~s__state~0 == 8512; 3258#L31 [2018-11-10 08:57:11,526 INFO L795 eck$LassoCheckResult]: Loop: 3258#L31 main_~tmp___1~0 := main_#t~nondet1;havoc main_#t~nondet1; 3241#L70 assume main_~tmp___1~0 != 0;main_~s__state~0 := 8466; 3242#L100 assume true; 3302#L18-1 assume !false; 3300#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 3274#L25 assume main_~s__state~0 == 8466; 3237#L26 assume !(main_~blastFlag~0 == 0); 3238#L58-1 assume !(main_~s__hit~0 != 0);main_~s__state~0 := 8512; 3269#L100 assume true; 3301#L18-1 assume !false; 3299#L19 assume !(main_~s__state~0 <= 8512 && main_~blastFlag~0 > 2); 3298#L25 assume !(main_~s__state~0 == 8466); 3257#L30 assume main_~s__state~0 == 8512; 3258#L31 [2018-11-10 08:57:11,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:11,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1526158662, now seen corresponding path program 1 times [2018-11-10 08:57:11,526 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:11,527 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:11,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:11,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:11,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:11,531 INFO L82 PathProgramCache]: Analyzing trace with hash 423211035, now seen corresponding path program 1 times [2018-11-10 08:57:11,531 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:11,531 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:11,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:11,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:11,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:57:11,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1650194946, now seen corresponding path program 1 times [2018-11-10 08:57:11,536 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:57:11,536 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:57:11,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:57:11,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:57:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:57:11,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 08:57:11 BoogieIcfgContainer [2018-11-10 08:57:11,601 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 08:57:11,601 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:57:11,602 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:57:11,602 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:57:11,602 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:57:09" (3/4) ... [2018-11-10 08:57:11,604 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-10 08:57:11,634 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d3f79a40-4185-4e28-b13e-cc2211464385/bin-2019/uautomizer/witness.graphml [2018-11-10 08:57:11,634 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:57:11,635 INFO L168 Benchmark]: Toolchain (without parser) took 2570.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 959.2 MB in the beginning and 1.0 GB in the end (delta: -62.2 MB). Peak memory consumption was 72.0 MB. Max. memory is 11.5 GB. [2018-11-10 08:57:11,636 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:57:11,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.60 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 947.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 08:57:11,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.85 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:57:11,637 INFO L168 Benchmark]: Boogie Preprocessor took 11.51 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:57:11,637 INFO L168 Benchmark]: RCFGBuilder took 175.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:57:11,637 INFO L168 Benchmark]: BuchiAutomizer took 2178.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 95.2 MB). Peak memory consumption was 95.2 MB. Max. memory is 11.5 GB. [2018-11-10 08:57:11,638 INFO L168 Benchmark]: Witness Printer took 32.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-10 08:57:11,639 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 148.60 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 947.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.85 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.51 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 175.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2178.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 95.2 MB). Peak memory consumption was 95.2 MB. Max. memory is 11.5 GB. * Witness Printer took 32.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 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 12 terminating modules (8 trivial, 4 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * s__state + 8489 and consists of 5 locations. One deterministic module has affine ranking function -1 * s__state + 8576 and consists of 5 locations. One deterministic module has affine ranking function -1 * blastFlag + 1 and consists of 3 locations. One deterministic module has affine ranking function s__state and consists of 4 locations. 8 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 70 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 10 iterations. TraceHistogramMax:2. Analysis of lassos took 1.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 12. Automata minimization 0.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 134 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 247 states and ocurred in iteration 5. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 4/4 HoareTripleCheckerStatistics: 373 SDtfs, 224 SDslu, 203 SDs, 0 SdLazy, 223 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT1 conc0 concLT1 SILN0 SILU0 SILI1 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq193 hnf92 smp100 dnf189 smp79 tf111 neg93 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 2ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 30]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3490f9ec=0, \result=0, tmp___1=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ea1b88d=1, s__hit=0, blastFlag=2, s__state=8512} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 30]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L10] int s__state ; [L11] int s__hit = __VERIFIER_nondet_int() ; [L12] int blastFlag ; [L13] int tmp___1; [L15] s__state = 8466 [L16] blastFlag = 0 [L18] COND TRUE 1 [L19] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L25] COND TRUE s__state == 8466 [L58] COND TRUE blastFlag == 0 [L59] blastFlag = 2 [L61] COND FALSE !(\read(s__hit)) [L64] s__state = 8512 [L18] COND TRUE 1 [L19] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L25] COND FALSE !(s__state == 8466) [L30] COND TRUE s__state == 8512 Loop: [L69] tmp___1 = __VERIFIER_nondet_int() [L70] COND TRUE \read(tmp___1) [L71] s__state = 8466 [L18] COND TRUE 1 [L19] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L25] COND TRUE s__state == 8466 [L58] COND FALSE !(blastFlag == 0) [L61] COND FALSE !(\read(s__hit)) [L64] s__state = 8512 [L18] COND TRUE 1 [L19] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L25] COND FALSE !(s__state == 8466) [L30] COND TRUE s__state == 8512 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...