./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.18.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/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_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.18.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/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_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/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 b7b84dd29ea36609e5f5c61ea995baac9099f3fa2331fbdc558930ff5215a280 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:01:51,132 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:01:51,201 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 08:01:51,206 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:01:51,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:01:51,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:01:51,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:01:51,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:01:51,235 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:01:51,236 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:01:51,236 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:01:51,237 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 08:01:51,238 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 08:01:51,238 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 08:01:51,239 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 08:01:51,239 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 08:01:51,240 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 08:01:51,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:01:51,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 08:01:51,241 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:01:51,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:01:51,242 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 08:01:51,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 08:01:51,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 08:01:51,244 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:01:51,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:01:51,244 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 08:01:51,245 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:01:51,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:01:51,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:01:51,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:01:51,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:01:51,247 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 08:01:51,248 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_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b84dd29ea36609e5f5c61ea995baac9099f3fa2331fbdc558930ff5215a280 [2023-11-19 08:01:51,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:01:51,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:01:51,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:01:51,626 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:01:51,626 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:01:51,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-restricted-15/b.18.c [2023-11-19 08:01:54,801 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:01:55,025 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:01:55,025 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/sv-benchmarks/c/termination-restricted-15/b.18.c [2023-11-19 08:01:55,033 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/data/5e113c24c/b3f7572ec3d0408788c9a94d1ab66867/FLAG7366ec044 [2023-11-19 08:01:55,055 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/data/5e113c24c/b3f7572ec3d0408788c9a94d1ab66867 [2023-11-19 08:01:55,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:01:55,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:01:55,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:55,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:01:55,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:01:55,075 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:55" (1/1) ... [2023-11-19 08:01:55,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13868a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:55, skipping insertion in model container [2023-11-19 08:01:55,077 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:55" (1/1) ... [2023-11-19 08:01:55,100 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:01:55,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:55,285 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:01:55,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:55,318 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:01:55,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:55 WrapperNode [2023-11-19 08:01:55,319 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:55,320 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:55,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:01:55,320 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:01:55,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:55" (1/1) ... [2023-11-19 08:01:55,332 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:55" (1/1) ... [2023-11-19 08:01:55,351 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-11-19 08:01:55,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:55,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:01:55,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:01:55,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:01:55,362 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:55" (1/1) ... [2023-11-19 08:01:55,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:55" (1/1) ... [2023-11-19 08:01:55,363 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:55" (1/1) ... [2023-11-19 08:01:55,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:55" (1/1) ... [2023-11-19 08:01:55,366 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:55" (1/1) ... [2023-11-19 08:01:55,370 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:55" (1/1) ... [2023-11-19 08:01:55,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:55" (1/1) ... [2023-11-19 08:01:55,371 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:55" (1/1) ... [2023-11-19 08:01:55,377 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:01:55,378 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:01:55,378 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:01:55,378 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:01:55,379 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:55" (1/1) ... [2023-11-19 08:01:55,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:55,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:55,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:55,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 08:01:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:01:55,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:01:55,541 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:01:55,544 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:01:55,622 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:01:55,630 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:01:55,630 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 08:01:55,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:55 BoogieIcfgContainer [2023-11-19 08:01:55,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:01:55,635 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 08:01:55,635 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 08:01:55,639 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 08:01:55,640 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:01:55,640 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:01:55" (1/3) ... [2023-11-19 08:01:55,641 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6be9a73c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:01:55, skipping insertion in model container [2023-11-19 08:01:55,641 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:01:55,641 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:55" (2/3) ... [2023-11-19 08:01:55,642 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6be9a73c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:01:55, skipping insertion in model container [2023-11-19 08:01:55,642 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:01:55,642 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:55" (3/3) ... [2023-11-19 08:01:55,644 INFO L332 chiAutomizerObserver]: Analyzing ICFG b.18.c [2023-11-19 08:01:55,703 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 08:01:55,704 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 08:01:55,704 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 08:01:55,704 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 08:01:55,704 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 08:01:55,704 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 08:01:55,705 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 08:01:55,705 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 08:01:55,710 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 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 08:01:55,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 08:01:55,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:01:55,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:01:55,735 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 08:01:55,736 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 08:01:55,736 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 08:01:55,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 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 08:01:55,738 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 08:01:55,738 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:01:55,738 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:01:55,739 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 08:01:55,739 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 08:01:55,748 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L15-3true [2023-11-19 08:01:55,748 INFO L750 eck$LassoCheckResult]: Loop: 4#L15-3true assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5#L10true assume main_~x~0#1 > main_~y~0#1; 9#L11-2true assume !(main_~x~0#1 > 0); 4#L15-3true [2023-11-19 08:01:55,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:55,755 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 08:01:55,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:55,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895001935] [2023-11-19 08:01:55,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:55,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:55,881 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:01:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:55,922 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:01:55,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:55,928 INFO L85 PathProgramCache]: Analyzing trace with hash 40817, now seen corresponding path program 1 times [2023-11-19 08:01:55,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:55,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735875795] [2023-11-19 08:01:55,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:55,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:56,048 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 08:01:56,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:56,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735875795] [2023-11-19 08:01:56,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735875795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:56,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:56,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:01:56,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806988280] [2023-11-19 08:01:56,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:56,057 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 08:01:56,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:56,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:56,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:56,110 INFO L87 Difference]: Start difference. First operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 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, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:56,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:56,151 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2023-11-19 08:01:56,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2023-11-19 08:01:56,154 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-19 08:01:56,158 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 8 states and 11 transitions. [2023-11-19 08:01:56,159 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-19 08:01:56,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 08:01:56,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-11-19 08:01:56,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:56,161 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-19 08:01:56,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-11-19 08:01:56,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2023-11-19 08:01:56,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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 08:01:56,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-11-19 08:01:56,186 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-11-19 08:01:56,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:56,193 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-11-19 08:01:56,193 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 08:01:56,193 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2023-11-19 08:01:56,194 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-19 08:01:56,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:01:56,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:01:56,195 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 08:01:56,195 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 08:01:56,195 INFO L748 eck$LassoCheckResult]: Stem: 37#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 38#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 33#L15-3 [2023-11-19 08:01:56,195 INFO L750 eck$LassoCheckResult]: Loop: 33#L15-3 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 34#L10 assume !(main_~x~0#1 > main_~y~0#1); 35#L15-2 assume !(main_~y~0#1 > 0); 33#L15-3 [2023-11-19 08:01:56,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:56,196 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-19 08:01:56,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:56,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678431505] [2023-11-19 08:01:56,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:56,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:56,203 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:01:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:56,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:01:56,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:56,208 INFO L85 PathProgramCache]: Analyzing trace with hash 41265, now seen corresponding path program 1 times [2023-11-19 08:01:56,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:56,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024063473] [2023-11-19 08:01:56,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:56,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:56,235 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 08:01:56,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:56,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024063473] [2023-11-19 08:01:56,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024063473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:56,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:56,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:01:56,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752094575] [2023-11-19 08:01:56,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:56,238 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 08:01:56,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:56,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:56,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:56,240 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:56,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:56,256 INFO L93 Difference]: Finished difference Result 9 states and 12 transitions. [2023-11-19 08:01:56,256 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2023-11-19 08:01:56,257 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-19 08:01:56,257 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 12 transitions. [2023-11-19 08:01:56,258 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-19 08:01:56,258 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-19 08:01:56,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-11-19 08:01:56,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:56,259 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-19 08:01:56,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-11-19 08:01:56,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-19 08:01:56,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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 08:01:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-11-19 08:01:56,261 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-19 08:01:56,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:56,263 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-19 08:01:56,263 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 08:01:56,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-11-19 08:01:56,264 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-19 08:01:56,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:01:56,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:01:56,265 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 08:01:56,265 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 08:01:56,265 INFO L748 eck$LassoCheckResult]: Stem: 59#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 60#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 55#L15-3 [2023-11-19 08:01:56,266 INFO L750 eck$LassoCheckResult]: Loop: 55#L15-3 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 56#L10 assume !(main_~x~0#1 > main_~y~0#1); 57#L15-2 assume !!(main_~y~0#1 > 0);main_~y~0#1 := main_~y~0#1 - 1; 62#L15-2 assume !(main_~y~0#1 > 0); 55#L15-3 [2023-11-19 08:01:56,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:56,267 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2023-11-19 08:01:56,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:56,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108703438] [2023-11-19 08:01:56,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:56,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:56,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:01:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:56,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:01:56,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:56,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1279312, now seen corresponding path program 1 times [2023-11-19 08:01:56,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:56,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355757522] [2023-11-19 08:01:56,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:56,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:56,287 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:01:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:56,293 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:01:56,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:56,294 INFO L85 PathProgramCache]: Analyzing trace with hash 889706514, now seen corresponding path program 1 times [2023-11-19 08:01:56,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:56,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952751559] [2023-11-19 08:01:56,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:56,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:56,329 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:01:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:56,335 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:01:56,465 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:01:56,466 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:01:56,466 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:01:56,467 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:01:56,467 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 08:01:56,467 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:56,467 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:01:56,467 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:01:56,468 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18.c_Iteration3_Loop [2023-11-19 08:01:56,468 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:01:56,468 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:01:56,491 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 08:01:56,506 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 08:01:56,512 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 08:01:56,616 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:01:56,616 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 08:01:56,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:56,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:56,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:56,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 08:01:56,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:01:56,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:01:56,676 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:01:56,676 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 08:01:56,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:56,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:56,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:56,710 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:56,719 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:01:56,719 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:01:56,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 08:01:56,751 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:01:56,752 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 08:01:56,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:56,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:56,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:56,782 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:56,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 08:01:56,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:01:56,792 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:01:56,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:56,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:56,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:56,831 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:56,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 08:01:56,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 08:01:56,835 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:01:56,984 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 08:01:56,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:56,992 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:01:56,992 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:01:56,992 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:01:56,992 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:01:56,992 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 08:01:56,993 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:56,993 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:01:56,993 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:01:56,993 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18.c_Iteration3_Loop [2023-11-19 08:01:56,993 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:01:56,993 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:01:56,996 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 08:01:57,001 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 08:01:57,006 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 08:01:57,075 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:01:57,080 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 08:01:57,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:57,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:57,083 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:57,092 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 08:01:57,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:01:57,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:01:57,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:01:57,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:01:57,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 08:01:57,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 08:01:57,116 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 08:01:57,143 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:01:57,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:57,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:57,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:57,166 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:57,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 08:01:57,174 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 08:01:57,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:01:57,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:01:57,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:01:57,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:01:57,194 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 08:01:57,195 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 08:01:57,219 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:01:57,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:57,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:57,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:57,245 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:57,257 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 08:01:57,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:01:57,270 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:01:57,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:01:57,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:01:57,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:01:57,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:01:57,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:01:57,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 08:01:57,287 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 08:01:57,308 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-11-19 08:01:57,308 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-19 08:01:57,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:57,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:57,348 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:57,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 08:01:57,351 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 08:01:57,351 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 08:01:57,351 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 08:01:57,352 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-19 08:01:57,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:57,389 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 08:01:57,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:57,431 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:01:57,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:57,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:01:57,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:57,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:01:57,488 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 08:01:57,490 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 08:01:57,550 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 17 states and 24 transitions. Complement of second has 6 states. [2023-11-19 08:01:57,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 08:01:57,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 08:01:57,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-11-19 08:01:57,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-19 08:01:57,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:01:57,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-19 08:01:57,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:01:57,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-19 08:01:57,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:01:57,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2023-11-19 08:01:57,558 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 08:01:57,558 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 16 states and 22 transitions. [2023-11-19 08:01:57,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-19 08:01:57,559 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-19 08:01:57,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2023-11-19 08:01:57,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:01:57,559 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 22 transitions. [2023-11-19 08:01:57,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2023-11-19 08:01:57,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2023-11-19 08:01:57,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:57,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 19 transitions. [2023-11-19 08:01:57,562 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 19 transitions. [2023-11-19 08:01:57,562 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2023-11-19 08:01:57,562 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 08:01:57,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 19 transitions. [2023-11-19 08:01:57,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 08:01:57,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:01:57,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:01:57,563 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-19 08:01:57,564 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 08:01:57,564 INFO L748 eck$LassoCheckResult]: Stem: 128#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 129#L-1 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_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~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_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 130#L15-3 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 122#L10 [2023-11-19 08:01:57,564 INFO L750 eck$LassoCheckResult]: Loop: 122#L10 assume main_~x~0#1 > main_~y~0#1; 125#L11-2 assume !!(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 131#L11-2 assume !(main_~x~0#1 > 0); 121#L15-3 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 122#L10 [2023-11-19 08:01:57,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:57,565 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-19 08:01:57,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:57,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826288671] [2023-11-19 08:01:57,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:57,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:57,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:01:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:57,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:01:57,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:57,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1363360, now seen corresponding path program 1 times [2023-11-19 08:01:57,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:57,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530154665] [2023-11-19 08:01:57,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:57,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:57,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:01:57,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:57,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530154665] [2023-11-19 08:01:57,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530154665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:57,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:57,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:01:57,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317929413] [2023-11-19 08:01:57,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:57,617 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 08:01:57,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:57,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:57,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:57,618 INFO L87 Difference]: Start difference. First operand 13 states and 19 transitions. cyclomatic complexity: 8 Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 08:01:57,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:57,627 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-11-19 08:01:57,627 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2023-11-19 08:01:57,628 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 08:01:57,629 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 14 transitions. [2023-11-19 08:01:57,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-19 08:01:57,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-19 08:01:57,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2023-11-19 08:01:57,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:01:57,630 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-11-19 08:01:57,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2023-11-19 08:01:57,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-11-19 08:01:57,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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 08:01:57,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-11-19 08:01:57,632 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-19 08:01:57,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:57,633 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-19 08:01:57,633 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-19 08:01:57,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2023-11-19 08:01:57,634 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 08:01:57,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:01:57,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:01:57,635 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-19 08:01:57,635 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-19 08:01:57,635 INFO L748 eck$LassoCheckResult]: Stem: 161#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 162#L-1 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_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~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_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 163#L15-3 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 156#L10 assume main_~x~0#1 > main_~y~0#1; 159#L11-2 [2023-11-19 08:01:57,636 INFO L750 eck$LassoCheckResult]: Loop: 159#L11-2 assume !!(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 159#L11-2 [2023-11-19 08:01:57,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:57,636 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-19 08:01:57,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:57,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562284093] [2023-11-19 08:01:57,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:57,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:57,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:01:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:57,649 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:01:57,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:57,650 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2023-11-19 08:01:57,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:57,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725189566] [2023-11-19 08:01:57,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:57,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:57,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:01:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:57,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:01:57,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:57,660 INFO L85 PathProgramCache]: Analyzing trace with hash 28699761, now seen corresponding path program 1 times [2023-11-19 08:01:57,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:57,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305633416] [2023-11-19 08:01:57,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:57,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:57,669 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:01:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:57,675 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:01:57,696 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:01:57,696 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:01:57,696 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:01:57,696 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:01:57,697 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 08:01:57,697 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:57,697 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:01:57,697 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:01:57,697 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18.c_Iteration5_Loop [2023-11-19 08:01:57,697 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:01:57,697 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:01:57,699 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 08:01:57,703 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 08:01:57,710 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 08:01:57,748 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:01:57,749 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 08:01:57,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:57,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:57,751 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:57,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:01:57,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:01:57,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 08:01:57,784 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:01:57,784 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 08:01:57,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:57,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:57,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:57,811 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:57,820 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:01:57,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:01:57,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 08:01:57,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:57,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:57,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:57,863 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:57,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 08:01:57,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 08:01:57,868 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:01:57,901 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 08:01:57,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:57,905 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:01:57,905 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:01:57,905 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:01:57,905 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:01:57,906 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 08:01:57,906 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:57,906 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:01:57,906 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:01:57,906 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18.c_Iteration5_Loop [2023-11-19 08:01:57,906 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:01:57,906 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:01:57,908 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:01:57,918 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 08:01:57,922 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 08:01:57,971 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:01:57,971 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 08:01:57,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:57,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:57,975 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:57,984 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 08:01:57,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 08:01:57,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:01:57,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:01:57,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:01:57,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:01:57,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:01:57,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:01:58,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:01:58,009 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 08:01:58,012 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 08:01:58,012 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 08:01:58,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:58,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:58,019 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:58,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 08:01:58,021 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 08:01:58,022 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 08:01:58,022 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 08:01:58,023 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 [] [2023-11-19 08:01:58,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:58,049 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 08:01:58,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:58,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:01:58,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:58,095 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:01:58,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:58,103 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 08:01:58,104 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 08:01:58,105 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:58,113 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 14 transitions. Complement of second has 2 states. [2023-11-19 08:01:58,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-19 08:01:58,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:58,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 8 transitions. [2023-11-19 08:01:58,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 4 letters. Loop has 1 letters. [2023-11-19 08:01:58,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:01:58,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 5 letters. Loop has 1 letters. [2023-11-19 08:01:58,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:01:58,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-19 08:01:58,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:01:58,120 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2023-11-19 08:01:58,122 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 08:01:58,122 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2023-11-19 08:01:58,123 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 08:01:58,123 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 08:01:58,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 08:01:58,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:58,123 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:01:58,123 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:01:58,124 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:01:58,124 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-19 08:01:58,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 08:01:58,124 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 08:01:58,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 08:01:58,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:01:58 BoogieIcfgContainer [2023-11-19 08:01:58,139 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 08:01:58,140 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:01:58,140 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:01:58,140 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:01:58,141 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:55" (3/4) ... [2023-11-19 08:01:58,143 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 08:01:58,144 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:01:58,147 INFO L158 Benchmark]: Toolchain (without parser) took 3083.32ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 102.7MB in the beginning and 125.9MB in the end (delta: -23.1MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2023-11-19 08:01:58,148 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 100.7MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:01:58,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.60ms. Allocated memory is still 140.5MB. Free memory was 102.7MB in the beginning and 93.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 08:01:58,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.57ms. Allocated memory is still 140.5MB. Free memory was 93.1MB in the beginning and 91.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:01:58,159 INFO L158 Benchmark]: Boogie Preprocessor took 24.63ms. Allocated memory is still 140.5MB. Free memory was 91.8MB in the beginning and 90.9MB in the end (delta: 888.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:01:58,161 INFO L158 Benchmark]: RCFGBuilder took 255.73ms. Allocated memory is still 140.5MB. Free memory was 90.5MB in the beginning and 82.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 08:01:58,161 INFO L158 Benchmark]: BuchiAutomizer took 2504.71ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 82.1MB in the beginning and 125.9MB in the end (delta: -43.7MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2023-11-19 08:01:58,165 INFO L158 Benchmark]: Witness Printer took 6.77ms. Allocated memory is still 209.7MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:01:58,167 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 100.7MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.60ms. Allocated memory is still 140.5MB. Free memory was 102.7MB in the beginning and 93.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.57ms. Allocated memory is still 140.5MB. Free memory was 93.1MB in the beginning and 91.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.63ms. Allocated memory is still 140.5MB. Free memory was 91.8MB in the beginning and 90.9MB in the end (delta: 888.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 255.73ms. Allocated memory is still 140.5MB. Free memory was 90.5MB in the beginning and 82.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2504.71ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 82.1MB in the beginning and 125.9MB in the end (delta: -43.7MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * Witness Printer took 6.77ms. Allocated memory is still 209.7MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (3 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 2 locations. 3 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 4 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 38 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax197 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq148 hnf94 smp88 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 62ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s 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 08:01:58,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:58,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:58,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1182d8c4-9a18-4b9b-8801-c7aa8ee80c3b/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