./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/afnp2014.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/afnp2014.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be --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 9b126c2e4179fcd1dca44e04eae9f0721983a9a06894cd5f31aebfbdbef2948a ............................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:06:35,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:06:35,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:06:35,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:06:35,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:06:35,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:06:35,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:06:35,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:06:35,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:06:35,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:06:35,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:06:35,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:06:35,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:06:35,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:06:35,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:06:35,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:06:35,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:06:35,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:06:35,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:06:35,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:06:35,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:06:35,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:06:35,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:06:35,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:06:35,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:06:35,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:06:35,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:06:35,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:06:35,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:06:35,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:06:35,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:06:35,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:06:35,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:06:35,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:06:35,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:06:35,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:06:35,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:06:35,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:06:35,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:06:35,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:06:35,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:06:35,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:06:35,555 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:06:35,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:06:35,558 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:06:35,558 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:06:35,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:06:35,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:06:35,561 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:06:35,561 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:06:35,562 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:06:35,562 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:06:35,563 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:06:35,564 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:06:35,564 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:06:35,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:06:35,565 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:06:35,565 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:06:35,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:06:35,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:06:35,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:06:35,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:06:35,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:06:35,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:06:35,567 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:06:35,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:06:35,567 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:06:35,567 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:06:35,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:06:35,570 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:06:35,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:06:35,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:06:35,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:06:35,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:06:35,572 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:06:35,573 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b126c2e4179fcd1dca44e04eae9f0721983a9a06894cd5f31aebfbdbef2948a [2021-10-21 19:06:35,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:06:35,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:06:35,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:06:35,969 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:06:35,971 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:06:35,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/loop-lit/afnp2014.i [2021-10-21 19:06:36,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/data/acb1522ca/72724643784a42a1ad6818c40a1d8f2c/FLAG3f16a8025 [2021-10-21 19:06:36,578 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:06:36,579 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/sv-benchmarks/c/loop-lit/afnp2014.i [2021-10-21 19:06:36,594 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/data/acb1522ca/72724643784a42a1ad6818c40a1d8f2c/FLAG3f16a8025 [2021-10-21 19:06:36,922 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/data/acb1522ca/72724643784a42a1ad6818c40a1d8f2c [2021-10-21 19:06:36,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:06:36,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:06:36,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:06:36,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:06:36,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:06:36,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:06:36" (1/1) ... [2021-10-21 19:06:36,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24eeec43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:36, skipping insertion in model container [2021-10-21 19:06:36,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:06:36" (1/1) ... [2021-10-21 19:06:36,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:06:36,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:06:37,185 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/sv-benchmarks/c/loop-lit/afnp2014.i[895,908] [2021-10-21 19:06:37,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:06:37,205 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:06:37,221 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/sv-benchmarks/c/loop-lit/afnp2014.i[895,908] [2021-10-21 19:06:37,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:06:37,241 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:06:37,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:37 WrapperNode [2021-10-21 19:06:37,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:06:37,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:06:37,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:06:37,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:06:37,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:37" (1/1) ... [2021-10-21 19:06:37,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:37" (1/1) ... [2021-10-21 19:06:37,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:06:37,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:06:37,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:06:37,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:06:37,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:37" (1/1) ... [2021-10-21 19:06:37,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:37" (1/1) ... [2021-10-21 19:06:37,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:37" (1/1) ... [2021-10-21 19:06:37,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:37" (1/1) ... [2021-10-21 19:06:37,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:37" (1/1) ... [2021-10-21 19:06:37,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:37" (1/1) ... [2021-10-21 19:06:37,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:37" (1/1) ... [2021-10-21 19:06:37,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:06:37,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:06:37,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:06:37,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:06:37,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:37" (1/1) ... [2021-10-21 19:06:37,320 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:37,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:37,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:37,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:06:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:06:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:06:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:06:37,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:06:37,608 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:06:37,609 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:06:37,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:06:37 BoogieIcfgContainer [2021-10-21 19:06:37,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:06:37,612 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:06:37,613 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:06:37,617 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:06:37,618 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:06:37,618 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:06:36" (1/3) ... [2021-10-21 19:06:37,620 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e3d57c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:06:37, skipping insertion in model container [2021-10-21 19:06:37,620 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:06:37,620 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:37" (2/3) ... [2021-10-21 19:06:37,620 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e3d57c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:06:37, skipping insertion in model container [2021-10-21 19:06:37,621 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:06:37,621 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:06:37" (3/3) ... [2021-10-21 19:06:37,623 INFO L389 chiAutomizerObserver]: Analyzing ICFG afnp2014.i [2021-10-21 19:06:37,674 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:06:37,675 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:06:37,675 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:06:37,675 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:06:37,675 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:06:37,675 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:06:37,676 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:06:37,676 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:06:37,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:37,715 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 19:06:37,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:37,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:37,720 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:06:37,720 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 19:06:37,721 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:06:37,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:37,722 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 19:06:37,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:37,723 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:37,723 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:06:37,723 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 19:06:37,731 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 8#L-1true havoc main_#res;havoc main_#t~nondet3, main_~x~0, main_~y~0;main_~x~0 := 1;main_~y~0 := 0; 11#L27-2true [2021-10-21 19:06:37,732 INFO L793 eck$LassoCheckResult]: Loop: 11#L27-2true assume !!(main_~y~0 < 1000 && 0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_~x~0 + main_~y~0;main_~y~0 := 1 + main_~y~0; 11#L27-2true [2021-10-21 19:06:37,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:37,739 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-21 19:06:37,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:37,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053783248] [2021-10-21 19:06:37,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:37,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:37,853 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:37,894 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:37,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:37,898 INFO L82 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-10-21 19:06:37,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:37,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514992233] [2021-10-21 19:06:37,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:37,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:37,908 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:37,917 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:37,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:37,919 INFO L82 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-10-21 19:06:37,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:37,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871505014] [2021-10-21 19:06:37,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:37,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:37,942 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:37,966 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:38,086 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:06:38,087 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:06:38,087 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:06:38,087 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:06:38,087 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:06:38,088 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:38,088 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:06:38,088 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:06:38,088 INFO L133 ssoRankerPreferences]: Filename of dumped script: afnp2014.i_Iteration1_Loop [2021-10-21 19:06:38,089 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:06:38,089 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:06:38,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:38,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:38,193 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:06:38,194 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:06:38,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:38,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:38,199 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:38,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:06:38,210 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:06:38,210 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:06:38,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:38,274 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:38,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:38,275 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:38,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:06:38,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:06:38,281 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:06:38,366 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:06:38,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:38,379 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:06:38,379 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:06:38,379 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:06:38,379 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:06:38,380 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:06:38,380 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:38,380 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:06:38,380 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:06:38,380 INFO L133 ssoRankerPreferences]: Filename of dumped script: afnp2014.i_Iteration1_Loop [2021-10-21 19:06:38,380 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:06:38,380 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:06:38,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:38,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:38,475 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:06:38,495 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:06:38,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:38,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:38,514 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:38,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:38,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:38,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:38,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:06:38,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:38,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:38,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:38,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:38,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:38,590 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:06:38,599 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:06:38,599 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:06:38,601 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:38,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:38,604 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:38,610 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:06:38,610 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:06:38,611 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:06:38,612 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 1999 Supporting invariants [] [2021-10-21 19:06:38,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:06:38,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:38,663 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:06:38,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:38,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:06:38,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:38,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:38,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:38,795 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:06:38,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:38,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:38,816 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 19:06:38,818 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:38,883 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 30 transitions. Complement of second has 5 states. [2021-10-21 19:06:38,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:06:38,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:38,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2021-10-21 19:06:38,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-21 19:06:38,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:06:38,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 3 letters. Loop has 1 letters. [2021-10-21 19:06:38,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:06:38,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-21 19:06:38,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:06:38,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 30 transitions. [2021-10-21 19:06:38,914 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:06:38,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2021-10-21 19:06:38,923 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:06:38,923 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:06:38,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:06:38,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:06:38,925 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:06:38,925 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:06:38,925 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:06:38,925 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:06:38,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:06:38,930 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:06:38,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:06:38,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:06:38 BoogieIcfgContainer [2021-10-21 19:06:38,947 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:06:38,948 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:06:38,949 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:06:38,949 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:06:38,950 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:06:37" (3/4) ... [2021-10-21 19:06:38,954 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:06:38,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:06:38,956 INFO L168 Benchmark]: Toolchain (without parser) took 2028.69 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 55.6 MB in the beginning and 97.3 MB in the end (delta: -41.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:06:38,958 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory is still 71.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:06:38,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.26 ms. Allocated memory is still 96.5 MB. Free memory was 55.4 MB in the beginning and 72.0 MB in the end (delta: -16.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:38,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.84 ms. Allocated memory is still 96.5 MB. Free memory was 72.0 MB in the beginning and 70.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:38,961 INFO L168 Benchmark]: Boogie Preprocessor took 21.66 ms. Allocated memory is still 96.5 MB. Free memory was 70.4 MB in the beginning and 69.6 MB in the end (delta: 763.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:06:38,962 INFO L168 Benchmark]: RCFGBuilder took 304.59 ms. Allocated memory is still 96.5 MB. Free memory was 69.4 MB in the beginning and 60.7 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:38,970 INFO L168 Benchmark]: BuchiAutomizer took 1335.28 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 60.7 MB in the beginning and 97.3 MB in the end (delta: -36.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:06:38,971 INFO L168 Benchmark]: Witness Printer took 5.68 ms. Allocated memory is still 127.9 MB. Free memory is still 97.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:06:38,983 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory is still 71.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 314.26 ms. Allocated memory is still 96.5 MB. Free memory was 55.4 MB in the beginning and 72.0 MB in the end (delta: -16.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.84 ms. Allocated memory is still 96.5 MB. Free memory was 72.0 MB in the beginning and 70.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.66 ms. Allocated memory is still 96.5 MB. Free memory was 70.4 MB in the beginning and 69.6 MB in the end (delta: 763.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 304.59 ms. Allocated memory is still 96.5 MB. Free memory was 69.4 MB in the beginning and 60.7 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1335.28 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 60.7 MB in the beginning and 97.3 MB in the end (delta: -36.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.68 ms. Allocated memory is still 127.9 MB. Free memory is still 97.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * y + 1999 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 7 SDtfs, 8 SDslu, 5 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.0ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp78 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 114ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 19:06:39,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4938e8-3f3b-42b5-845d-3dedebfe1a8e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...