./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Ex06.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Ex06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro --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 64bit --witnessprinter.graph.data.programhash 7e66e5d0ac00f8e474147a7ee8b0260ea4ced8ccde7952ff642446632cdde4c3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:29:10,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:29:10,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:29:10,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:29:10,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:29:10,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:29:10,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:29:10,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:29:10,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:29:10,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:29:10,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:29:10,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:29:10,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:29:10,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:29:10,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:29:10,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:29:10,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:29:10,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:29:10,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:29:10,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:29:10,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:29:10,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:29:10,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:29:10,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:29:10,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:29:10,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:29:10,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:29:10,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:29:10,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:29:10,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:29:10,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:29:10,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:29:10,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:29:10,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:29:10,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:29:10,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:29:10,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:29:10,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:29:10,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:29:10,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:29:10,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:29:10,507 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-18 18:29:10,566 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:29:10,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:29:10,567 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:29:10,567 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:29:10,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:29:10,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:29:10,570 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:29:10,570 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 18:29:10,570 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 18:29:10,571 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 18:29:10,572 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 18:29:10,573 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 18:29:10,573 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 18:29:10,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:29:10,574 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:29:10,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:29:10,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:29:10,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 18:29:10,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 18:29:10,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 18:29:10,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:29:10,576 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 18:29:10,576 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:29:10,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 18:29:10,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:29:10,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:29:10,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:29:10,580 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:29:10,582 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 18:29:10,582 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_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e66e5d0ac00f8e474147a7ee8b0260ea4ced8ccde7952ff642446632cdde4c3 [2022-11-18 18:29:10,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:29:10,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:29:10,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:29:11,000 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:29:11,001 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:29:11,002 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-restricted-15/Ex06.c [2022-11-18 18:29:11,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/data/69c223d5c/5a9c4a5c361e40f29824694959c81bc1/FLAG2fb1d743e [2022-11-18 18:29:11,686 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:29:11,687 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/sv-benchmarks/c/termination-restricted-15/Ex06.c [2022-11-18 18:29:11,694 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/data/69c223d5c/5a9c4a5c361e40f29824694959c81bc1/FLAG2fb1d743e [2022-11-18 18:29:12,037 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/data/69c223d5c/5a9c4a5c361e40f29824694959c81bc1 [2022-11-18 18:29:12,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:29:12,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:29:12,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:29:12,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:29:12,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:29:12,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:29:12" (1/1) ... [2022-11-18 18:29:12,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7695112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:12, skipping insertion in model container [2022-11-18 18:29:12,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:29:12" (1/1) ... [2022-11-18 18:29:12,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:29:12,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:29:12,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:29:12,311 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:29:12,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:29:12,339 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:29:12,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:12 WrapperNode [2022-11-18 18:29:12,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:29:12,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:29:12,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:29:12,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:29:12,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:12" (1/1) ... [2022-11-18 18:29:12,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:12" (1/1) ... [2022-11-18 18:29:12,381 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2022-11-18 18:29:12,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:29:12,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:29:12,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:29:12,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:29:12,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:12" (1/1) ... [2022-11-18 18:29:12,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:12" (1/1) ... [2022-11-18 18:29:12,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:12" (1/1) ... [2022-11-18 18:29:12,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:12" (1/1) ... [2022-11-18 18:29:12,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:12" (1/1) ... [2022-11-18 18:29:12,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:12" (1/1) ... [2022-11-18 18:29:12,402 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:12" (1/1) ... [2022-11-18 18:29:12,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:12" (1/1) ... [2022-11-18 18:29:12,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:29:12,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:29:12,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:29:12,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:29:12,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:12" (1/1) ... [2022-11-18 18:29:12,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:29:12,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:12,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:29:12,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 18:29:12,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:29:12,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:29:12,592 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:29:12,595 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:29:12,674 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:29:12,682 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:29:12,682 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 18:29:12,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:29:12 BoogieIcfgContainer [2022-11-18 18:29:12,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:29:12,686 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 18:29:12,687 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 18:29:12,692 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 18:29:12,693 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:29:12,693 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 06:29:12" (1/3) ... [2022-11-18 18:29:12,694 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@155f4502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 06:29:12, skipping insertion in model container [2022-11-18 18:29:12,695 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:29:12,695 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:12" (2/3) ... [2022-11-18 18:29:12,695 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@155f4502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 06:29:12, skipping insertion in model container [2022-11-18 18:29:12,696 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:29:12,696 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:29:12" (3/3) ... [2022-11-18 18:29:12,698 INFO L332 chiAutomizerObserver]: Analyzing ICFG Ex06.c [2022-11-18 18:29:12,767 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 18:29:12,767 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 18:29:12,767 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 18:29:12,767 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 18:29:12,768 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 18:29:12,768 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 18:29:12,768 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 18:29:12,768 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 18:29:12,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2022-11-18 18:29:12,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 18:29:12,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:29:12,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:29:12,803 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 18:29:12,804 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 18:29:12,804 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 18:29:12,804 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2022-11-18 18:29:12,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 18:29:12,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:29:12,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:29:12,807 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 18:29:12,807 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 18:29:12,816 INFO L748 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 3#L13-1true [2022-11-18 18:29:12,817 INFO L750 eck$LassoCheckResult]: Loop: 3#L13-1true assume !!(main_~i~0#1 >= -5 && main_~i~0#1 <= 5); 7#L10true assume !(main_~i~0#1 > 0); 5#L10-2true assume main_~i~0#1 < 0;main_~i~0#1 := 1 + main_~i~0#1; 3#L13-1true [2022-11-18 18:29:12,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:12,824 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-18 18:29:12,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:12,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071984834] [2022-11-18 18:29:12,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:12,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:29:12,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:29:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:29:12,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:29:12,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:12,961 INFO L85 PathProgramCache]: Analyzing trace with hash 40878, now seen corresponding path program 1 times [2022-11-18 18:29:12,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:12,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848329651] [2022-11-18 18:29:12,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:12,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:29:12,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:29:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:29:12,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:29:12,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:12,983 INFO L85 PathProgramCache]: Analyzing trace with hash 28699820, now seen corresponding path program 1 times [2022-11-18 18:29:12,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:12,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702924615] [2022-11-18 18:29:12,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:12,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:29:12,994 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:29:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:29:13,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:29:13,094 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:29:13,099 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:29:13,099 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:29:13,100 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:29:13,100 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 18:29:13,100 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:29:13,100 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:29:13,117 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:29:13,117 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex06.c_Iteration1_Loop [2022-11-18 18:29:13,117 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:29:13,118 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:29:13,151 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:29:13,183 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:29:13,188 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:29:13,312 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:29:13,313 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 18:29:13,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:29:13,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:13,340 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:29:13,349 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:29:13,349 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:29:13,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 18:29:13,390 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 18:29:13,391 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 18:29:13,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:13,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:29:13,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:13,405 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:29:13,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:29:13,415 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:29:13,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 18:29:13,453 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 18:29:13,454 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 18:29:13,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:13,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:29:13,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:13,466 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:29:13,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:29:13,495 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:29:13,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 18:29:13,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:13,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:29:13,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:13,545 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:29:13,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 18:29:13,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:29:13,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 18:29:13,592 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 18:29:13,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:13,605 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:29:13,605 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:29:13,605 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:29:13,606 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:29:13,606 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 18:29:13,606 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:29:13,606 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:29:13,606 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:29:13,607 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex06.c_Iteration1_Loop [2022-11-18 18:29:13,607 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:29:13,607 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:29:13,610 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:29:13,617 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:29:13,633 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:29:13,694 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:29:13,700 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 18:29:13,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:29:13,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:13,703 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:29:13,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 18:29:13,736 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 [2022-11-18 18:29:13,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:29:13,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:29:13,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:29:13,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:29:13,763 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 18:29:13,763 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 18:29:13,781 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:29:13,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:13,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:29:13,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:13,795 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:29:13,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 18:29:13,805 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 [2022-11-18 18:29:13,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:29:13,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:29:13,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:29:13,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:29:13,825 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 18:29:13,826 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 18:29:13,840 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:29:13,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-11-18 18:29:13,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:29:13,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:13,853 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:29:13,864 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 [2022-11-18 18:29:13,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 18:29:13,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:29:13,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:29:13,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:29:13,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:29:13,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:29:13,883 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 18:29:13,883 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:29:13,895 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 18:29:13,899 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-18 18:29:13,899 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 18:29:13,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:29:13,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:13,902 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:29:13,911 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 18:29:13,911 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 18:29:13,911 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 18:29:13,912 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-18 18:29:13,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 18:29:13,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-11-18 18:29:13,923 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 18:29:13,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:13,976 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:29:13,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:29:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:14,001 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:29:14,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:29:14,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:14,069 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-18 18:29:14,072 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-18 18:29:14,160 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 31 states and 45 transitions. Complement of second has 6 states. [2022-11-18 18:29:14,164 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 [2022-11-18 18:29:14,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-18 18:29:14,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-11-18 18:29:14,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 3 letters. [2022-11-18 18:29:14,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:29:14,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-18 18:29:14,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:29:14,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 6 letters. [2022-11-18 18:29:14,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:29:14,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 45 transitions. [2022-11-18 18:29:14,185 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-18 18:29:14,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 14 states and 21 transitions. [2022-11-18 18:29:14,192 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-18 18:29:14,192 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-18 18:29:14,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2022-11-18 18:29:14,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 18:29:14,194 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2022-11-18 18:29:14,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2022-11-18 18:29:14,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2022-11-18 18:29:14,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 states have internal predecessors, (19), 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) [2022-11-18 18:29:14,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 19 transitions. [2022-11-18 18:29:14,229 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 19 transitions. [2022-11-18 18:29:14,229 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2022-11-18 18:29:14,229 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 18:29:14,229 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 19 transitions. [2022-11-18 18:29:14,230 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-18 18:29:14,230 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:29:14,231 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:29:14,231 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-18 18:29:14,231 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 18:29:14,232 INFO L748 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 86#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 89#L13-1 assume !!(main_~i~0#1 >= -5 && main_~i~0#1 <= 5); 79#L10 [2022-11-18 18:29:14,232 INFO L750 eck$LassoCheckResult]: Loop: 79#L10 assume !(main_~i~0#1 > 0); 82#L10-2 assume !(main_~i~0#1 < 0); 78#L13-1 assume !!(main_~i~0#1 >= -5 && main_~i~0#1 <= 5); 79#L10 [2022-11-18 18:29:14,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:14,238 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-18 18:29:14,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:14,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49287735] [2022-11-18 18:29:14,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:14,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:29:14,250 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:29:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:29:14,258 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:29:14,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:14,259 INFO L85 PathProgramCache]: Analyzing trace with hash 45860, now seen corresponding path program 1 times [2022-11-18 18:29:14,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:14,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177270201] [2022-11-18 18:29:14,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:14,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:29:14,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:29:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:29:14,283 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:29:14,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:14,284 INFO L85 PathProgramCache]: Analyzing trace with hash 889694493, now seen corresponding path program 1 times [2022-11-18 18:29:14,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:14,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836382793] [2022-11-18 18:29:14,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:14,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:29:14,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:29:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:29:14,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:29:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:29:14,402 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:29:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:29:14,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 06:29:14 BoogieIcfgContainer [2022-11-18 18:29:14,438 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 18:29:14,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:29:14,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:29:14,440 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:29:14,441 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:29:12" (3/4) ... [2022-11-18 18:29:14,444 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-18 18:29:14,500 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 18:29:14,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:29:14,501 INFO L158 Benchmark]: Toolchain (without parser) took 2456.55ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 61.8MB in the beginning and 67.9MB in the end (delta: -6.1MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2022-11-18 18:29:14,502 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 96.5MB. Free memory was 66.8MB in the beginning and 66.7MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:29:14,502 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.02ms. Allocated memory is still 96.5MB. Free memory was 61.6MB in the beginning and 73.6MB in the end (delta: -11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 18:29:14,503 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.84ms. Allocated memory is still 96.5MB. Free memory was 73.6MB in the beginning and 72.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:29:14,503 INFO L158 Benchmark]: Boogie Preprocessor took 22.30ms. Allocated memory is still 96.5MB. Free memory was 72.4MB in the beginning and 71.5MB in the end (delta: 885.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:29:14,503 INFO L158 Benchmark]: RCFGBuilder took 280.00ms. Allocated memory is still 96.5MB. Free memory was 71.1MB in the beginning and 63.1MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 18:29:14,504 INFO L158 Benchmark]: BuchiAutomizer took 1751.94ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 62.7MB in the beginning and 69.3MB in the end (delta: -6.6MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2022-11-18 18:29:14,504 INFO L158 Benchmark]: Witness Printer took 61.45ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 67.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:29:14,507 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 96.5MB. Free memory was 66.8MB in the beginning and 66.7MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.02ms. Allocated memory is still 96.5MB. Free memory was 61.6MB in the beginning and 73.6MB in the end (delta: -11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.84ms. Allocated memory is still 96.5MB. Free memory was 73.6MB in the beginning and 72.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.30ms. Allocated memory is still 96.5MB. Free memory was 72.4MB in the beginning and 71.5MB in the end (delta: 885.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 280.00ms. Allocated memory is still 96.5MB. Free memory was 71.1MB in the beginning and 63.1MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1751.94ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 62.7MB in the beginning and 69.3MB in the end (delta: -6.6MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * Witness Printer took 61.45ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 67.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * 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) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i and consists of 4 locations. The remainder module has 13 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq139 hnf95 smp100 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 80ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i >= -5 && i <= 5 VAL [i=0] Loop: [L10] COND FALSE !(i > 0) [L13] COND FALSE !(i < 0) [L9] COND TRUE i >= -5 && i <= 5 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i >= -5 && i <= 5 VAL [i=0] Loop: [L10] COND FALSE !(i > 0) [L13] COND FALSE !(i < 0) [L9] COND TRUE i >= -5 && i <= 5 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-18 18:29:14,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:14,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d16764-32a4-427a-82b8-846a6d04e19a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)