./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/trex04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --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 f70ffe9cd45c37f44e9e780e31340fab45b6a2fb7f7ef23a2d90faf4241229d6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:28:40,393 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:28:40,474 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-12 02:28:40,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:28:40,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:28:40,536 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:28:40,538 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:28:40,538 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:28:40,540 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:28:40,545 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:28:40,547 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:28:40,547 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-12 02:28:40,548 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-12 02:28:40,550 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-12 02:28:40,550 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-12 02:28:40,551 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-12 02:28:40,551 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-12 02:28:40,552 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:28:40,553 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-12 02:28:40,555 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:28:40,556 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:28:40,556 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:28:40,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:28:40,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-12 02:28:40,558 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-12 02:28:40,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-12 02:28:40,559 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:28:40,560 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:28:40,560 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:28:40,561 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-12 02:28:40,562 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:28:40,563 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:28:40,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:28:40,563 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:28:40,564 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:28:40,565 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-12 02:28:40,565 INFO L153 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_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70ffe9cd45c37f44e9e780e31340fab45b6a2fb7f7ef23a2d90faf4241229d6 [2023-11-12 02:28:40,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:28:40,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:28:40,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:28:40,977 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:28:40,978 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:28:40,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/loops/trex04.c [2023-11-12 02:28:44,093 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:28:44,347 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:28:44,348 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/sv-benchmarks/c/loops/trex04.c [2023-11-12 02:28:44,356 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/data/ce63f535d/b521ecdbf8cd485b94f225d334d276ff/FLAG0b73703fc [2023-11-12 02:28:44,377 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/data/ce63f535d/b521ecdbf8cd485b94f225d334d276ff [2023-11-12 02:28:44,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:28:44,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:28:44,394 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:28:44,396 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:28:44,401 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:28:44,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:28:44" (1/1) ... [2023-11-12 02:28:44,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45bd64b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:44, skipping insertion in model container [2023-11-12 02:28:44,406 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:28:44" (1/1) ... [2023-11-12 02:28:44,433 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:28:44,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:28:44,654 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:28:44,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:28:44,705 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:28:44,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:44 WrapperNode [2023-11-12 02:28:44,706 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:28:44,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:28:44,708 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:28:44,708 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:28:44,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:44" (1/1) ... [2023-11-12 02:28:44,727 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:44" (1/1) ... [2023-11-12 02:28:44,756 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 81 [2023-11-12 02:28:44,756 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:28:44,757 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:28:44,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:28:44,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:28:44,770 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:44" (1/1) ... [2023-11-12 02:28:44,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:44" (1/1) ... [2023-11-12 02:28:44,772 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:44" (1/1) ... [2023-11-12 02:28:44,772 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:44" (1/1) ... [2023-11-12 02:28:44,776 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:44" (1/1) ... [2023-11-12 02:28:44,782 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:44" (1/1) ... [2023-11-12 02:28:44,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:44" (1/1) ... [2023-11-12 02:28:44,798 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:44" (1/1) ... [2023-11-12 02:28:44,800 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:28:44,801 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:28:44,801 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:28:44,801 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:28:44,802 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:44" (1/1) ... [2023-11-12 02:28:44,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:44,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:44,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:44,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-12 02:28:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:28:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:28:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:28:44,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:28:44,963 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:28:44,965 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:28:45,128 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:28:45,135 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:28:45,136 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:28:45,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:45 BoogieIcfgContainer [2023-11-12 02:28:45,138 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:28:45,139 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-12 02:28:45,140 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-12 02:28:45,144 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-12 02:28:45,145 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:28:45,145 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 02:28:44" (1/3) ... [2023-11-12 02:28:45,146 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@693c53dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:28:45, skipping insertion in model container [2023-11-12 02:28:45,146 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:28:45,147 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:44" (2/3) ... [2023-11-12 02:28:45,147 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@693c53dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:28:45, skipping insertion in model container [2023-11-12 02:28:45,147 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:28:45,147 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:45" (3/3) ... [2023-11-12 02:28:45,149 INFO L332 chiAutomizerObserver]: Analyzing ICFG trex04.c [2023-11-12 02:28:45,210 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-12 02:28:45,211 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-12 02:28:45,211 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-12 02:28:45,211 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-12 02:28:45,211 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-12 02:28:45,212 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-12 02:28:45,213 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-12 02:28:45,213 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-12 02:28:45,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 23 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 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) [2023-11-12 02:28:45,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-12 02:28:45,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:28:45,235 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:28:45,239 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:45,240 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-12 02:28:45,240 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-12 02:28:45,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 23 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 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) [2023-11-12 02:28:45,243 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-12 02:28:45,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:28:45,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:28:45,244 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:45,244 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-12 02:28:45,251 INFO L748 eck$LassoCheckResult]: Stem: 20#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_~d~0#1, main_~x~0#1, main_~c1~1#1, main_~c2~1#1;main_~d~0#1 := 1;havoc main_#t~nondet8#1;main_~x~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 8#L31true assume !!(main_~x~0#1 <= 1000000 && main_~x~0#1 >= -1000000);havoc main_#t~nondet9#1;main_~c1~1#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_#t~nondet10#1;main_~c2~1#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 17#L34true assume !(0 != main_~c1~1#1 % 256); 11#L34-2true assume !(0 != main_~c2~1#1 % 256); 14#L35-1true havoc main_#t~nondet11#1;main_~c1~1#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_#t~nondet12#1;main_~c2~1#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 24#L39true assume !(0 != main_~c1~1#1 % 256); 16#L39-2true assume !(0 != main_~c2~1#1 % 256); 4#L42-1true [2023-11-12 02:28:45,251 INFO L750 eck$LassoCheckResult]: Loop: 4#L42-1true assume !!(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - main_~d~0#1; 4#L42-1true [2023-11-12 02:28:45,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:45,256 INFO L85 PathProgramCache]: Analyzing trace with hash 179996080, now seen corresponding path program 1 times [2023-11-12 02:28:45,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:45,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212674863] [2023-11-12 02:28:45,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:45,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:45,367 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:28:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:45,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:28:45,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:45,404 INFO L85 PathProgramCache]: Analyzing trace with hash 97, now seen corresponding path program 1 times [2023-11-12 02:28:45,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:45,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548811534] [2023-11-12 02:28:45,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:45,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:45,415 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:28:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:45,420 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:28:45,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:45,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1284911250, now seen corresponding path program 1 times [2023-11-12 02:28:45,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:45,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252676666] [2023-11-12 02:28:45,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:45,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:45,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:28:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:45,459 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:28:45,854 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:28:45,855 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:28:45,855 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:28:45,855 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:28:45,856 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:28:45,856 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:45,856 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:28:45,856 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:28:45,856 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex04.c_Iteration1_Lasso [2023-11-12 02:28:45,856 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:28:45,857 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:28:45,876 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:45,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:45,908 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:45,927 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:45,957 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:45,960 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:45,974 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:45,977 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:45,980 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:45,983 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:45,986 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:45,989 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:45,993 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:28:46,254 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:28:46,259 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:28:46,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:46,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:46,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:46,286 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 [2023-11-12 02:28:46,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:28:46,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:28:46,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:28:46,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:28:46,307 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:28:46,307 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:28:46,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-12 02:28:46,326 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:28:46,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:46,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:46,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:46,341 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:46,350 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 [2023-11-12 02:28:46,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:28:46,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:28:46,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:28:46,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:28:46,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-12 02:28:46,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:28:46,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:28:46,392 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:28:46,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:46,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:46,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:46,403 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:46,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-12 02:28:46,406 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 [2023-11-12 02:28:46,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:28:46,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:28:46,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:28:46,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:28:46,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:28:46,423 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:28:46,436 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:28:46,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:46,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:46,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:46,447 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:46,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-12 02:28:46,451 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 [2023-11-12 02:28:46,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:28:46,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:28:46,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:28:46,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:28:46,468 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:28:46,469 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:28:46,483 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:28:46,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:46,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:46,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:46,494 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:46,504 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 [2023-11-12 02:28:46,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-12 02:28:46,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:28:46,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:28:46,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:28:46,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:28:46,525 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:28:46,525 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:28:46,544 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:28:46,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:46,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:46,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:46,555 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:46,563 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 [2023-11-12 02:28:46,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-12 02:28:46,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:28:46,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:28:46,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:28:46,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:28:46,581 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:28:46,581 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:28:46,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:28:46,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:46,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:46,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:46,601 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:46,610 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 [2023-11-12 02:28:46,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:28:46,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:28:46,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:28:46,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:28:46,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-12 02:28:46,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:28:46,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:28:46,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:28:46,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:46,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:46,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:46,659 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:46,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-12 02:28:46,662 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 [2023-11-12 02:28:46,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:28:46,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:28:46,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:28:46,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:28:46,680 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:28:46,680 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:28:46,700 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:28:46,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:46,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:46,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:46,706 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:46,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-12 02:28:46,717 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 [2023-11-12 02:28:46,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:28:46,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:28:46,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:28:46,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:28:46,733 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:28:46,733 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:28:46,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:28:46,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-12 02:28:46,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:46,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:46,751 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:46,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-12 02:28:46,759 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 [2023-11-12 02:28:46,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:28:46,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:28:46,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:28:46,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:28:46,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:28:46,775 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:28:46,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:28:46,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:46,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:46,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:46,794 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:46,810 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 [2023-11-12 02:28:46,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:28:46,822 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:28:46,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-12 02:28:46,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:28:46,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:28:46,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:28:46,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:28:46,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:28:46,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:28:46,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:46,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:46,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:46,844 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:46,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-12 02:28:46,849 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 [2023-11-12 02:28:46,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:28:46,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:28:46,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:28:46,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:28:46,866 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:28:46,866 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:28:46,880 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:28:46,892 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-11-12 02:28:46,893 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-11-12 02:28:46,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:28:46,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:46,936 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:46,938 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:28:46,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-12 02:28:46,966 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-12 02:28:46,966 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:28:46,967 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [1*ULTIMATE.start_main_~d~0#1 - 1 >= 0] [2023-11-12 02:28:46,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:46,983 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2023-11-12 02:28:47,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:47,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:47,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:28:47,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:28:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:47,113 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:28:47,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:28:47,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:47,168 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-11-12 02:28:47,170 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 23 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-12 02:28:47,275 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 23 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 67 states and 97 transitions. Complement of second has 8 states. [2023-11-12 02:28:47,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 1 non-accepting loop states 2 accepting loop states [2023-11-12 02:28:47,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-12 02:28:47,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 68 transitions. [2023-11-12 02:28:47,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 68 transitions. Stem has 8 letters. Loop has 1 letters. [2023-11-12 02:28:47,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:28:47,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 68 transitions. Stem has 9 letters. Loop has 1 letters. [2023-11-12 02:28:47,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:28:47,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 68 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-12 02:28:47,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:28:47,288 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 97 transitions. [2023-11-12 02:28:47,294 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-11-12 02:28:47,298 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 28 states and 42 transitions. [2023-11-12 02:28:47,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2023-11-12 02:28:47,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-11-12 02:28:47,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 42 transitions. [2023-11-12 02:28:47,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:47,301 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 42 transitions. [2023-11-12 02:28:47,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 42 transitions. [2023-11-12 02:28:47,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2023-11-12 02:28:47,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.56) internal successors, (39), 24 states have internal predecessors, (39), 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) [2023-11-12 02:28:47,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 39 transitions. [2023-11-12 02:28:47,331 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 39 transitions. [2023-11-12 02:28:47,331 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 39 transitions. [2023-11-12 02:28:47,332 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-12 02:28:47,332 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 39 transitions. [2023-11-12 02:28:47,333 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-12 02:28:47,333 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:28:47,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:28:47,335 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:47,335 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-12 02:28:47,336 INFO L748 eck$LassoCheckResult]: Stem: 174#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3); 165#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_~d~0#1, main_~x~0#1, main_~c1~1#1, main_~c2~1#1;main_~d~0#1 := 1;havoc main_#t~nondet8#1;main_~x~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 163#L31 assume !!(main_~x~0#1 <= 1000000 && main_~x~0#1 >= -1000000);havoc main_#t~nondet9#1;main_~c1~1#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_#t~nondet10#1;main_~c2~1#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 164#L34 assume 0 != main_~c1~1#1 % 256;main_~d~0#1 := main_~d~0#1 - 1; 168#L34-2 assume !(0 != main_~c2~1#1 % 256); 170#L35-1 havoc main_#t~nondet11#1;main_~c1~1#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_#t~nondet12#1;main_~c2~1#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 171#L39 assume !(0 != main_~c1~1#1 % 256); 162#L39-2 assume !(0 != main_~c2~1#1 % 256); 159#L42-1 [2023-11-12 02:28:47,336 INFO L750 eck$LassoCheckResult]: Loop: 159#L42-1 assume !!(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - main_~d~0#1; 159#L42-1 [2023-11-12 02:28:47,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:47,337 INFO L85 PathProgramCache]: Analyzing trace with hash 178149038, now seen corresponding path program 1 times [2023-11-12 02:28:47,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:47,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192636271] [2023-11-12 02:28:47,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:47,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:47,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:28:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:47,390 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:28:47,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:47,390 INFO L85 PathProgramCache]: Analyzing trace with hash 97, now seen corresponding path program 2 times [2023-11-12 02:28:47,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:47,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679428957] [2023-11-12 02:28:47,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:47,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:47,402 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:28:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:47,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:28:47,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:47,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1227652948, now seen corresponding path program 1 times [2023-11-12 02:28:47,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:47,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602687623] [2023-11-12 02:28:47,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:47,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:47,453 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:28:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:47,466 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:28:47,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:47,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:28:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:28:47,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 02:28:47 BoogieIcfgContainer [2023-11-12 02:28:47,735 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-12 02:28:47,736 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:28:47,736 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:28:47,736 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:28:47,737 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:45" (3/4) ... [2023-11-12 02:28:47,738 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-12 02:28:47,776 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:28:47,776 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:28:47,777 INFO L158 Benchmark]: Toolchain (without parser) took 3389.54ms. Allocated memory is still 201.3MB. Free memory was 163.4MB in the beginning and 145.2MB in the end (delta: 18.3MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2023-11-12 02:28:47,778 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 127.9MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:28:47,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.74ms. Allocated memory is still 201.3MB. Free memory was 162.9MB in the beginning and 152.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:28:47,779 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.00ms. Allocated memory is still 201.3MB. Free memory was 152.4MB in the beginning and 150.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:28:47,779 INFO L158 Benchmark]: Boogie Preprocessor took 42.76ms. Allocated memory is still 201.3MB. Free memory was 150.8MB in the beginning and 149.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:28:47,780 INFO L158 Benchmark]: RCFGBuilder took 337.67ms. Allocated memory is still 201.3MB. Free memory was 149.8MB in the beginning and 138.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:28:47,780 INFO L158 Benchmark]: BuchiAutomizer took 2595.66ms. Allocated memory is still 201.3MB. Free memory was 138.3MB in the beginning and 146.2MB in the end (delta: -8.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:28:47,781 INFO L158 Benchmark]: Witness Printer took 40.87ms. Allocated memory is still 201.3MB. Free memory was 146.2MB in the beginning and 145.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:28:47,783 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 127.9MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.74ms. Allocated memory is still 201.3MB. Free memory was 162.9MB in the beginning and 152.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.00ms. Allocated memory is still 201.3MB. Free memory was 152.4MB in the beginning and 150.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.76ms. Allocated memory is still 201.3MB. Free memory was 150.8MB in the beginning and 149.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 337.67ms. Allocated memory is still 201.3MB. Free memory was 149.8MB in the beginning and 138.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2595.66ms. Allocated memory is still 201.3MB. Free memory was 138.3MB in the beginning and 146.2MB in the end (delta: -8.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 40.87ms. Allocated memory is still 201.3MB. Free memory was 146.2MB in the beginning and 145.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 x and consists of 6 locations. The remainder module has 25 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. 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 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 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, 56 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 50 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital83 mio100 ax100 hnf100 lsp26 ukn95 mio100 lsp100 div209 bol100 ite100 ukn100 eq145 hnf95 smp47 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 66ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 42]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L29] int d = 1; [L30] int x = __VERIFIER_nondet_int(); [L31] COND FALSE !(!(x <= 1000000 && x >= -1000000)) [L32] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L32] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L34] COND TRUE \read(c1) [L34] d = d - 1 VAL [c1=-1, d=0, x=1000000] [L35] COND FALSE !(\read(c2)) VAL [c1=-1, c2=0, d=0, x=1000000] [L37] c1=__VERIFIER_nondet_bool() [L37] c2=__VERIFIER_nondet_bool() [L39] COND FALSE !(\read(c1)) VAL [c1=0, d=0, x=1000000] [L40] COND FALSE !(\read(c2)) VAL [c1=0, c2=0, d=0, x=1000000] Loop: [L42] COND TRUE x>0 [L44] x=x-d End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 42]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L29] int d = 1; [L30] int x = __VERIFIER_nondet_int(); [L31] COND FALSE !(!(x <= 1000000 && x >= -1000000)) [L32] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L32] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L34] COND TRUE \read(c1) [L34] d = d - 1 VAL [c1=-1, d=0, x=1000000] [L35] COND FALSE !(\read(c2)) VAL [c1=-1, c2=0, d=0, x=1000000] [L37] c1=__VERIFIER_nondet_bool() [L37] c2=__VERIFIER_nondet_bool() [L39] COND FALSE !(\read(c1)) VAL [c1=0, d=0, x=1000000] [L40] COND FALSE !(\read(c2)) VAL [c1=0, c2=0, d=0, x=1000000] Loop: [L42] COND TRUE x>0 [L44] x=x-d End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-12 02:28:47,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e5b994-7f6b-4795-87e9-5522292cb6df/bin/uautomizer-verify-uTZkv6EMXl/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)