./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff 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_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu --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 64bit --witnessprinter.graph.data.programhash 2f97933f35fe6dc06fe68cfca662228239a8205559235f014a4e90d641a78f3c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:32,920 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:32,996 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 07:42:33,002 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:33,003 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:33,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:33,033 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:33,034 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:33,035 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:33,036 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:33,037 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:33,037 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:42:33,038 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:42:33,038 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:42:33,039 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:42:33,040 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:42:33,040 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:42:33,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:33,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:42:33,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:42:33,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:33,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:42:33,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:42:33,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:42:33,045 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:42:33,045 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:42:33,046 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:42:33,046 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:33,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:33,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:33,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:33,049 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:42:33,050 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:42:33,050 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_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f97933f35fe6dc06fe68cfca662228239a8205559235f014a4e90d641a78f3c [2023-11-19 07:42:33,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:33,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:33,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:33,394 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:33,395 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:33,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c [2023-11-19 07:42:36,680 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:42:36,927 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:42:36,927 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c [2023-11-19 07:42:36,936 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/data/22c386332/bf2066032c7744f3928a477570a1fad5/FLAG0c4b7fdfd [2023-11-19 07:42:36,951 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/data/22c386332/bf2066032c7744f3928a477570a1fad5 [2023-11-19 07:42:36,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:42:36,955 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:42:36,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:36,958 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:42:36,963 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:42:36,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:36" (1/1) ... [2023-11-19 07:42:36,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e379ba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:36, skipping insertion in model container [2023-11-19 07:42:36,966 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:36" (1/1) ... [2023-11-19 07:42:36,986 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:42:37,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:37,205 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:42:37,219 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:37,231 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:42:37,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37 WrapperNode [2023-11-19 07:42:37,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:37,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:37,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:42:37,234 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:42:37,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,246 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,264 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2023-11-19 07:42:37,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:37,265 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:42:37,265 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:42:37,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:42:37,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,275 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,275 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,278 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,281 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,283 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,284 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:42:37,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:42:37,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:42:37,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:42:37,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:37,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:37,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:37,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:42:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:42:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:42:37,467 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:42:37,470 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:42:37,567 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:42:37,574 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:42:37,575 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:42:37,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:37 BoogieIcfgContainer [2023-11-19 07:42:37,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:42:37,586 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:42:37,586 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:42:37,590 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:42:37,591 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:42:37,591 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:42:36" (1/3) ... [2023-11-19 07:42:37,593 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ee29453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:42:37, skipping insertion in model container [2023-11-19 07:42:37,593 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:42:37,593 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (2/3) ... [2023-11-19 07:42:37,594 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ee29453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:42:37, skipping insertion in model container [2023-11-19 07:42:37,594 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:42:37,594 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:37" (3/3) ... [2023-11-19 07:42:37,595 INFO L332 chiAutomizerObserver]: Analyzing ICFG Benghazi_nondet-2.c [2023-11-19 07:42:37,654 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:42:37,654 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:42:37,654 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:42:37,654 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:42:37,655 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:42:37,655 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:42:37,655 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:42:37,655 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:42:37,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2023-11-19 07:42:37,677 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 07:42:37,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:42:37,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:42:37,682 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-19 07:42:37,682 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-19 07:42:37,682 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:42:37,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2023-11-19 07:42:37,684 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 07:42:37,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:42:37,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:42:37,685 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-19 07:42:37,685 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-19 07:42:37,692 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~d1~0#1, main_~d2~0#1, main_~d1old~0#1;havoc main_~x~0#1;havoc main_~d1~0#1;havoc main_~d2~0#1;havoc main_~d1old~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~d1~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d2~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 3#L18true assume !!(-1048575 <= main_~x~0#1 && main_~x~0#1 <= 1048575); 9#L19true assume !!(-1048575 <= main_~d1~0#1 && main_~d1~0#1 <= 1048575); 10#L20true assume !!(-1048575 <= main_~d2~0#1 && main_~d2~0#1 <= 1048575); 7#L21-2true [2023-11-19 07:42:37,692 INFO L750 eck$LassoCheckResult]: Loop: 7#L21-2true assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~d1~0#1;main_~d1old~0#1 := main_~d1~0#1;main_~d1~0#1 := 1 + main_~d2~0#1;main_~d2~0#1 := 1 + main_~d1old~0#1; 7#L21-2true [2023-11-19 07:42:37,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:37,699 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2023-11-19 07:42:37,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:37,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548824408] [2023-11-19 07:42:37,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:37,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:42:37,792 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:42:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:42:37,816 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:42:37,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:37,820 INFO L85 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2023-11-19 07:42:37,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:37,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243370791] [2023-11-19 07:42:37,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:37,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:42:37,835 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:42:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:42:37,844 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:42:37,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:37,846 INFO L85 PathProgramCache]: Analyzing trace with hash 889571345, now seen corresponding path program 1 times [2023-11-19 07:42:37,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:37,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52684952] [2023-11-19 07:42:37,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:37,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:42:37,861 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:42:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:42:37,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:42:37,990 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:42:37,990 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:42:37,991 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:42:37,991 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:42:37,991 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:42:37,992 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:37,992 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:42:37,992 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:42:37,992 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet-2.c_Iteration1_Loop [2023-11-19 07:42:37,992 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:42:37,993 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:42:38,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:42:38,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:42:38,039 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:42:38,177 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:42:38,178 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:42:38,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:38,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:38,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:38,200 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:42:38,200 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:42:38,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:42:38,229 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:42:38,229 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: [] [2023-11-19 07:42:38,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-19 07:42:38,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:38,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:38,247 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:38,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:42:38,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:42:38,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:42:38,272 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:42:38,272 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: [] [2023-11-19 07:42:38,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:38,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:38,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:38,304 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:38,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:42:38,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:42:38,316 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:42:38,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:38,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:38,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:38,382 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:38,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:42:38,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:42:38,390 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:42:41,700 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:42:41,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-19 07:42:41,705 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:42:41,705 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:42:41,705 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:42:41,705 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:42:41,706 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:42:41,706 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:41,706 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:42:41,706 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:42:41,706 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet-2.c_Iteration1_Loop [2023-11-19 07:42:41,706 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:42:41,706 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:42:41,709 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:42:41,713 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:42:41,718 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:42:41,813 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:42:41,819 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:42:41,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:41,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:41,823 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:41,835 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 [2023-11-19 07:42:41,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:42:41,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:42:41,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:42:41,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:42:41,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:42:41,857 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:42:41,857 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:42:41,881 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:42:41,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-19 07:42:41,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:41,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:41,895 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:41,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:42:41,898 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 [2023-11-19 07:42:41,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:42:41,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:42:41,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:42:41,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:42:41,923 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:42:41,923 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:42:41,944 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:42:41,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:41,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:41,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:41,972 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:41,980 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 [2023-11-19 07:42:41,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:42:41,993 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:42:41,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:42:41,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:42:41,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:42:41,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:42:42,000 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:42:42,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:42:42,016 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:42:42,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:42,040 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-19 07:42:42,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:42,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:42,043 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:42,050 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 [2023-11-19 07:42:42,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:42:42,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:42:42,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:42:42,063 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-19 07:42:42,073 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2023-11-19 07:42:42,074 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2023-11-19 07:42:42,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:42:42,096 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:42:42,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:42,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:42,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:42,116 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:42,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 07:42:42,118 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 [2023-11-19 07:42:42,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:42:42,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:42:42,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:42:42,129 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-19 07:42:42,133 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2023-11-19 07:42:42,133 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2023-11-19 07:42:42,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:42:42,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:42,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:42,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:42,182 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:42,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 07:42:42,190 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 [2023-11-19 07:42:42,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:42:42,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:42:42,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:42:42,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:42:42,204 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-19 07:42:42,208 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-19 07:42:42,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:42:42,230 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:42:42,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:42,256 INFO L490 LassoAnalysis]: Using template '3-nested'. [2023-11-19 07:42:42,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:42,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:42,259 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:42,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 07:42:42,265 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 [2023-11-19 07:42:42,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:42:42,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:42:42,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:42:42,279 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-11-19 07:42:42,286 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2023-11-19 07:42:42,287 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-11-19 07:42:42,304 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:42:42,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:42,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:42,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:42,331 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:42,338 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 [2023-11-19 07:42:42,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:42:42,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:42:42,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:42:42,352 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-11-19 07:42:42,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 07:42:42,359 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2023-11-19 07:42:42,359 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-11-19 07:42:42,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:42:42,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:42,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:42,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:42,408 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:42,418 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 [2023-11-19 07:42:42,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:42:42,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:42:42,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 07:42:42,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:42:42,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:42:42,433 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-11-19 07:42:42,441 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-19 07:42:42,441 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:42:42,456 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:42:42,483 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-19 07:42:42,483 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:42:42,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:42:42,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:42,539 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:42,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-19 07:42:42,561 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:42:42,562 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:42:42,562 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:42:42,562 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d1~0#1 - 1*ULTIMATE.start_main_~d2~0#1 f1 = -1*ULTIMATE.start_main_~d1~0#1 + 2*ULTIMATE.start_main_~x~0#1 + 1 f2 = 1*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2023-11-19 07:42:42,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:42,589 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:42:42,597 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~d2~0 + -1 * ~d1~0 > 0 then 2 else (if 2 * ~x~0 + -1 * ~d1~0 + 1 > 0 then 1 else 0)) could not be translated [2023-11-19 07:42:42,599 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~d2~0 + -1 * ~d1~0 > 0 then -1 * ~d2~0 + -1 * ~d1~0 else (if 2 * ~x~0 + -1 * ~d1~0 + 1 > 0 then 2 * ~x~0 + -1 * ~d1~0 + 1 else ~x~0 + 1)) could not be translated [2023-11-19 07:42:42,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:42,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:42:42,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:42,664 WARN L260 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:42:42,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:42,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:42,703 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 [2023-11-19 07:42:42,705 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-19 07:42:42,763 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 20 states and 25 transitions. Complement of second has 6 states. [2023-11-19 07:42:42,765 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 [2023-11-19 07:42:42,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-19 07:42:42,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2023-11-19 07:42:42,775 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 5 letters. Loop has 1 letters. [2023-11-19 07:42:42,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:42:42,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 1 letters. [2023-11-19 07:42:42,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:42:42,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-19 07:42:42,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:42:42,781 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 25 transitions. [2023-11-19 07:42:42,787 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:42:42,789 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2023-11-19 07:42:42,790 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:42:42,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:42:42,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:42:42,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:42:42,796 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:42:42,796 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:42:42,796 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:42:42,796 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:42:42,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:42:42,796 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:42:42,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 07:42:42,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:42:42 BoogieIcfgContainer [2023-11-19 07:42:42,805 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:42:42,807 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:42:42,807 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:42:42,807 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:42:42,807 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:37" (3/4) ... [2023-11-19 07:42:42,810 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:42:42,811 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:42:42,816 INFO L158 Benchmark]: Toolchain (without parser) took 5856.33ms. Allocated memory is still 138.4MB. Free memory was 95.8MB in the beginning and 96.9MB in the end (delta: -1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:42:42,816 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 104.9MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:42:42,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.75ms. Allocated memory is still 138.4MB. Free memory was 95.8MB in the beginning and 107.7MB in the end (delta: -11.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:42:42,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.83ms. Allocated memory is still 138.4MB. Free memory was 107.7MB in the beginning and 106.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:42:42,818 INFO L158 Benchmark]: Boogie Preprocessor took 19.39ms. Allocated memory is still 138.4MB. Free memory was 106.1MB in the beginning and 105.3MB in the end (delta: 741.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:42:42,819 INFO L158 Benchmark]: RCFGBuilder took 299.97ms. Allocated memory is still 138.4MB. Free memory was 104.7MB in the beginning and 95.7MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:42:42,821 INFO L158 Benchmark]: BuchiAutomizer took 5219.27ms. Allocated memory is still 138.4MB. Free memory was 95.7MB in the beginning and 97.6MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:42:42,822 INFO L158 Benchmark]: Witness Printer took 4.64ms. Allocated memory is still 138.4MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:42:42,832 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 104.9MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.75ms. Allocated memory is still 138.4MB. Free memory was 95.8MB in the beginning and 107.7MB in the end (delta: -11.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.83ms. Allocated memory is still 138.4MB. Free memory was 107.7MB in the beginning and 106.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.39ms. Allocated memory is still 138.4MB. Free memory was 106.1MB in the beginning and 105.3MB in the end (delta: 741.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 299.97ms. Allocated memory is still 138.4MB. Free memory was 104.7MB in the beginning and 95.7MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5219.27ms. Allocated memory is still 138.4MB. Free memory was 95.7MB in the beginning and 97.6MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.64ms. Allocated memory is still 138.4MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~d2~0 + -1 * ~d1~0 > 0 then 2 else (if 2 * ~x~0 + -1 * ~d1~0 + 1 > 0 then 1 else 0)) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~d2~0 + -1 * ~d1~0 > 0 then -1 * ~d2~0 + -1 * ~d1~0 else (if 2 * ~x~0 + -1 * ~d1~0 + 1 > 0 then 2 * ~x~0 + -1 * ~d1~0 + 1 else ~x~0 + 1)) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 3-nested ranking function null, null and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 4.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -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, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 12 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax152 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq195 hnf91 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 4 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-19 07:42:42,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:43,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908326d4-e2f0-4990-bfbb-43c1f9904ada/bin/uautomizer-verify-uCwYo4JHxu/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 Result: TRUE