./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/or-01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30e01a73 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_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/or-01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ --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 7f247e4473503f47ee3194e296d6b905e51586799395e11124f119da43a61cc2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:44:51,045 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:44:51,136 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-23 21:44:51,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:44:51,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:44:51,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:44:51,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:44:51,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:44:51,176 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:44:51,177 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:44:51,178 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:44:51,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:44:51,179 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:44:51,182 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-23 21:44:51,183 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-23 21:44:51,184 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-23 21:44:51,185 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-23 21:44:51,190 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-23 21:44:51,190 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-23 21:44:51,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:44:51,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-23 21:44:51,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:44:51,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:44:51,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-23 21:44:51,194 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-23 21:44:51,194 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-23 21:44:51,195 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:44:51,195 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:44:51,196 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-23 21:44:51,196 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:44:51,198 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:44:51,199 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:44:51,199 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:44:51,199 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:44:51,200 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-23 21:44:51,200 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_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f247e4473503f47ee3194e296d6b905e51586799395e11124f119da43a61cc2 [2023-11-23 21:44:51,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:44:51,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:44:51,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:44:51,597 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:44:51,598 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:44:51,600 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/termination-bwb/or-01.c [2023-11-23 21:44:54,778 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:44:54,991 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:44:55,002 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/sv-benchmarks/c/termination-bwb/or-01.c [2023-11-23 21:44:55,028 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/data/5c11afd0f/0c018a4107f24c5783a5d53e04cdc252/FLAGa825e472e [2023-11-23 21:44:55,043 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/data/5c11afd0f/0c018a4107f24c5783a5d53e04cdc252 [2023-11-23 21:44:55,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:44:55,048 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:44:55,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:44:55,050 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:44:55,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:44:55,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:44:55" (1/1) ... [2023-11-23 21:44:55,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bbba6e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:55, skipping insertion in model container [2023-11-23 21:44:55,064 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:44:55" (1/1) ... [2023-11-23 21:44:55,082 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:44:55,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:44:55,244 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:44:55,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:44:55,268 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:44:55,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:55 WrapperNode [2023-11-23 21:44:55,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:44:55,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:44:55,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:44:55,270 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:44:55,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:55" (1/1) ... [2023-11-23 21:44:55,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:55" (1/1) ... [2023-11-23 21:44:55,307 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-11-23 21:44:55,307 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:44:55,308 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:44:55,308 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:44:55,308 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:44:55,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:55" (1/1) ... [2023-11-23 21:44:55,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:55" (1/1) ... [2023-11-23 21:44:55,321 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:55" (1/1) ... [2023-11-23 21:44:55,328 INFO L189 HeapSplitter]: Split 0 memory accesses to 0 slices as follows [] [2023-11-23 21:44:55,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:55" (1/1) ... [2023-11-23 21:44:55,329 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:55" (1/1) ... [2023-11-23 21:44:55,331 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:55" (1/1) ... [2023-11-23 21:44:55,336 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:55" (1/1) ... [2023-11-23 21:44:55,337 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:55" (1/1) ... [2023-11-23 21:44:55,338 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:55" (1/1) ... [2023-11-23 21:44:55,340 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:44:55,343 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:44:55,343 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:44:55,344 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:44:55,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:55" (1/1) ... [2023-11-23 21:44:55,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:55,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:55,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:55,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-23 21:44:55,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:44:55,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:44:55,510 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:44:55,512 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:44:55,616 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:44:55,627 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:44:55,628 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:44:55,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:44:55 BoogieIcfgContainer [2023-11-23 21:44:55,630 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:44:55,631 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-23 21:44:55,631 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-23 21:44:55,635 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-23 21:44:55,636 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:44:55,636 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 09:44:55" (1/3) ... [2023-11-23 21:44:55,637 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dff35b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:44:55, skipping insertion in model container [2023-11-23 21:44:55,638 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:44:55,638 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:55" (2/3) ... [2023-11-23 21:44:55,638 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dff35b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:44:55, skipping insertion in model container [2023-11-23 21:44:55,638 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:44:55,639 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:44:55" (3/3) ... [2023-11-23 21:44:55,640 INFO L332 chiAutomizerObserver]: Analyzing ICFG or-01.c [2023-11-23 21:44:55,725 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-23 21:44:55,725 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-23 21:44:55,725 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-23 21:44:55,725 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-23 21:44:55,725 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-23 21:44:55,726 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-23 21:44:55,726 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-23 21:44:55,726 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-23 21:44:55,730 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) 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) [2023-11-23 21:44:55,747 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:55,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:55,748 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:55,753 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 21:44:55,753 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-23 21:44:55,753 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-23 21:44:55,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) 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) [2023-11-23 21:44:55,755 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:55,756 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:55,756 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:55,756 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 21:44:55,757 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-23 21:44:55,764 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 5#L20-2true [2023-11-23 21:44:55,764 INFO L750 eck$LassoCheckResult]: Loop: 5#L20-2true assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 3#L22true assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 8#L22-4true main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 5#L20-2true [2023-11-23 21:44:55,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:55,770 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-23 21:44:55,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:55,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993998782] [2023-11-23 21:44:55,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:55,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:55,883 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:55,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:55,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:55,935 INFO L85 PathProgramCache]: Analyzing trace with hash 40819, now seen corresponding path program 1 times [2023-11-23 21:44:55,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:55,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271304719] [2023-11-23 21:44:55,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:55,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:55,960 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:55,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:55,972 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:55,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:55,974 INFO L85 PathProgramCache]: Analyzing trace with hash 28699761, now seen corresponding path program 1 times [2023-11-23 21:44:55,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:55,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434004989] [2023-11-23 21:44:55,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:55,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:56,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:56,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:56,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434004989] [2023-11-23 21:44:56,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434004989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:56,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:56,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:44:56,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177483457] [2023-11-23 21:44:56,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:56,282 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:56,283 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:56,283 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:56,283 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:56,283 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 21:44:56,283 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:56,284 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:56,284 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:56,284 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration1_Loop [2023-11-23 21:44:56,284 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:56,284 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:56,301 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:56,312 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:56,337 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:56,462 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:56,463 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 21:44:56,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:56,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:56,472 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:56,488 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:44:56,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:44:56,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-23 21:44:56,514 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:44:56,514 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 21:44:56,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:56,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:56,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:56,544 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:56,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-23 21:44:56,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:44:56,552 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:44:56,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:56,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:56,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:56,602 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:56,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 21:44:56,682 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:44:56,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-23 21:44:57,093 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 21:44:57,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:57,099 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:57,099 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:57,100 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:57,100 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:57,100 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:44:57,100 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:57,100 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:57,100 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:57,100 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration1_Loop [2023-11-23 21:44:57,100 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:57,101 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:57,103 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:57,107 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:57,129 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:57,247 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:57,253 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:44:57,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:57,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:57,257 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:57,265 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 21:44:57,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-23 21:44:57,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:57,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:57,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:57,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:57,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:57,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:57,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:57,298 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:57,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:57,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:57,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:57,329 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:57,338 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 21:44:57,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-23 21:44:57,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:57,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:57,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:57,354 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-23 21:44:57,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:57,366 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-23 21:44:57,366 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:57,388 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:57,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:57,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:57,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:57,419 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:57,430 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 [2023-11-23 21:44:57,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:57,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:57,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-23 21:44:57,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:57,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:57,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:57,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:57,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:57,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:57,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:57,485 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-23 21:44:57,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:57,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:57,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:57,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-23 21:44:57,497 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 [2023-11-23 21:44:57,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:57,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:57,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:57,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:57,516 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-23 21:44:57,518 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-23 21:44:57,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:57,528 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:57,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:57,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:57,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:57,563 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:57,573 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 [2023-11-23 21:44:57,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-23 21:44:57,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:57,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:57,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:57,590 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-23 21:44:57,591 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-23 21:44:57,606 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:57,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:57,624 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:44:57,661 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-23 21:44:57,661 INFO L444 ModelExtractionUtils]: 5 out of 9 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-23 21:44:57,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:57,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:57,698 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:57,712 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:44:57,712 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 21:44:57,712 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:44:57,713 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-23 21:44:57,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-23 21:44:57,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:57,752 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 21:44:57,772 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated [2023-11-23 21:44:57,781 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0) could not be translated [2023-11-23 21:44:57,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:57,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:57,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:44:57,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:57,862 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:44:57,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:58,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:58,208 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-23 21:44:58,211 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2023-11-23 21:44:58,426 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) 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). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 30 states and 42 transitions. Complement of second has 12 states. [2023-11-23 21:44:58,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-23 21:44:58,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2023-11-23 21:44:58,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 14 transitions. [2023-11-23 21:44:58,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 14 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-23 21:44:58,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:58,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-23 21:44:58,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:58,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 14 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-23 21:44:58,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:58,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 42 transitions. [2023-11-23 21:44:58,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:58,455 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 16 states and 21 transitions. [2023-11-23 21:44:58,457 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-23 21:44:58,458 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-23 21:44:58,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2023-11-23 21:44:58,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:58,460 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-11-23 21:44:58,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2023-11-23 21:44:58,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2023-11-23 21:44:58,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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) [2023-11-23 21:44:58,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-11-23 21:44:58,491 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-23 21:44:58,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:58,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:44:58,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:44:58,496 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2023-11-23 21:44:58,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:58,533 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2023-11-23 21:44:58,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2023-11-23 21:44:58,536 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:58,538 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 16 transitions. [2023-11-23 21:44:58,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-23 21:44:58,538 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-23 21:44:58,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2023-11-23 21:44:58,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:58,539 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2023-11-23 21:44:58,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2023-11-23 21:44:58,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2023-11-23 21:44:58,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:58,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2023-11-23 21:44:58,543 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-11-23 21:44:58,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:44:58,545 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-11-23 21:44:58,545 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-23 21:44:58,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2023-11-23 21:44:58,548 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:58,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:58,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:58,551 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-23 21:44:58,552 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-23 21:44:58,552 INFO L748 eck$LassoCheckResult]: Stem: 125#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 126#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 123#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 121#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 122#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 127#L22-4 [2023-11-23 21:44:58,553 INFO L750 eck$LassoCheckResult]: Loop: 127#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 128#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 131#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 127#L22-4 [2023-11-23 21:44:58,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:58,554 INFO L85 PathProgramCache]: Analyzing trace with hash 28699821, now seen corresponding path program 1 times [2023-11-23 21:44:58,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:58,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014858863] [2023-11-23 21:44:58,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:58,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:58,595 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:58,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:58,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:58,617 INFO L85 PathProgramCache]: Analyzing trace with hash 52249, now seen corresponding path program 2 times [2023-11-23 21:44:58,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:58,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27149597] [2023-11-23 21:44:58,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:58,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:58,633 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:58,644 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:58,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:58,647 INFO L85 PathProgramCache]: Analyzing trace with hash 297897965, now seen corresponding path program 1 times [2023-11-23 21:44:58,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:58,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802876100] [2023-11-23 21:44:58,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:58,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:58,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:58,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:58,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802876100] [2023-11-23 21:44:58,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802876100] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:44:58,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215982768] [2023-11-23 21:44:58,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:58,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:58,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:58,889 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:58,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:58,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 21:44:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:58,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 21:44:58,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:59,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:59,063 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:59,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:59,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215982768] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:44:59,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:44:59,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 15 [2023-11-23 21:44:59,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039610694] [2023-11-23 21:44:59,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:59,327 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:59,327 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:59,328 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:59,328 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:59,328 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 21:44:59,328 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:59,328 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:59,328 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:59,329 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration2_Loop [2023-11-23 21:44:59,329 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:59,329 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:59,330 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:59,333 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:59,454 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:59,455 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 21:44:59,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:59,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:59,465 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:59,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-23 21:44:59,468 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:44:59,468 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:44:59,490 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:44:59,491 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 21:44:59,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:59,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:59,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:59,512 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:59,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-23 21:44:59,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:44:59,515 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:44:59,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:59,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:59,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:59,558 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:59,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-23 21:44:59,565 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 21:44:59,565 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:00,277 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 21:45:00,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:00,282 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:45:00,282 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:45:00,282 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:45:00,282 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:45:00,282 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:45:00,282 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:00,282 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:45:00,282 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:45:00,283 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration2_Loop [2023-11-23 21:45:00,283 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:45:00,283 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:45:00,284 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:00,295 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:00,420 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:45:00,421 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:45:00,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:00,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:00,428 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:00,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-23 21:45:00,433 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 [2023-11-23 21:45:00,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:00,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:00,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:00,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:45:00,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:00,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:45:00,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:00,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:45:00,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:00,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:00,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:00,485 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:00,493 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 [2023-11-23 21:45:00,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:00,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:00,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:00,506 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-23 21:45:00,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:00,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-23 21:45:00,511 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-23 21:45:00,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:00,528 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:45:00,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:00,552 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-23 21:45:00,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:00,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:00,553 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:00,556 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 [2023-11-23 21:45:00,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:00,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:00,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:00,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:45:00,568 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-23 21:45:00,574 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-23 21:45:00,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:00,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-23 21:45:00,592 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:45:00,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:00,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:00,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:00,616 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:00,619 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 [2023-11-23 21:45:00,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:00,632 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:00,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:00,632 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-23 21:45:00,632 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-23 21:45:00,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-23 21:45:00,640 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:45:00,640 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:00,654 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:45:00,663 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-23 21:45:00,663 INFO L444 ModelExtractionUtils]: 6 out of 11 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-23 21:45:00,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:00,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:00,666 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:00,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-23 21:45:00,668 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:45:00,668 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 21:45:00,668 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:45:00,668 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_#t~nondet2#1 Supporting invariants [] [2023-11-23 21:45:00,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:00,690 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 21:45:00,692 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated [2023-11-23 21:45:00,693 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated [2023-11-23 21:45:00,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:00,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:45:00,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:00,744 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:45:00,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:00,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-11-23 21:45:00,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:00,983 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-23 21:45:00,984 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-23 21:45:01,040 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 33 transitions. Complement of second has 7 states. [2023-11-23 21:45:01,040 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 [2023-11-23 21:45:01,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-23 21:45:01,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-23 21:45:01,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-23 21:45:01,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:01,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 3 letters. [2023-11-23 21:45:01,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:01,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 6 letters. [2023-11-23 21:45:01,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:01,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2023-11-23 21:45:01,050 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-23 21:45:01,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 24 states and 32 transitions. [2023-11-23 21:45:01,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-11-23 21:45:01,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2023-11-23 21:45:01,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 32 transitions. [2023-11-23 21:45:01,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:45:01,053 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 32 transitions. [2023-11-23 21:45:01,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 32 transitions. [2023-11-23 21:45:01,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2023-11-23 21:45:01,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 22 states have internal predecessors, (31), 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) [2023-11-23 21:45:01,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2023-11-23 21:45:01,063 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 31 transitions. [2023-11-23 21:45:01,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:45:01,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 21:45:01,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2023-11-23 21:45:01,067 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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) [2023-11-23 21:45:01,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:45:01,401 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2023-11-23 21:45:01,401 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2023-11-23 21:45:01,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-23 21:45:01,408 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 29 states and 34 transitions. [2023-11-23 21:45:01,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-11-23 21:45:01,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-11-23 21:45:01,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 34 transitions. [2023-11-23 21:45:01,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:45:01,410 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 34 transitions. [2023-11-23 21:45:01,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 34 transitions. [2023-11-23 21:45:01,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2023-11-23 21:45:01,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.2) internal successors, (24), 19 states have internal predecessors, (24), 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) [2023-11-23 21:45:01,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2023-11-23 21:45:01,415 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 24 transitions. [2023-11-23 21:45:01,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 21:45:01,418 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2023-11-23 21:45:01,419 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-23 21:45:01,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 24 transitions. [2023-11-23 21:45:01,420 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:45:01,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:45:01,420 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:45:01,421 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1] [2023-11-23 21:45:01,421 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 21:45:01,422 INFO L748 eck$LassoCheckResult]: Stem: 340#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 341#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 345#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 348#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 347#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 346#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 338#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 334#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 335#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 342#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 343#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 352#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 349#L22-2 [2023-11-23 21:45:01,422 INFO L750 eck$LassoCheckResult]: Loop: 349#L22-2 assume 0 == main_~a~0#1;main_#t~nondet2#1 := main_~b~0#1; 350#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 353#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 351#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 349#L22-2 [2023-11-23 21:45:01,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:01,423 INFO L85 PathProgramCache]: Analyzing trace with hash 898884598, now seen corresponding path program 1 times [2023-11-23 21:45:01,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:01,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142019456] [2023-11-23 21:45:01,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:01,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:01,456 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:45:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:01,496 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:45:01,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:01,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1512010, now seen corresponding path program 1 times [2023-11-23 21:45:01,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:01,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446855525] [2023-11-23 21:45:01,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:01,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:01,511 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:45:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:01,524 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:45:01,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:01,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1065487425, now seen corresponding path program 1 times [2023-11-23 21:45:01,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:01,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964198196] [2023-11-23 21:45:01,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:01,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:01,677 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:01,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:45:01,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964198196] [2023-11-23 21:45:01,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964198196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:45:01,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:45:01,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:45:01,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824069064] [2023-11-23 21:45:01,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:45:01,751 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:45:01,751 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:45:01,751 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:45:01,752 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:45:01,752 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 21:45:01,752 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:01,752 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:45:01,752 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:45:01,752 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration3_Loop [2023-11-23 21:45:01,752 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:45:01,752 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:45:01,754 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:01,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:01,764 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:01,767 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:01,919 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:45:01,919 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 21:45:01,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:01,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:01,921 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:01,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-23 21:45:01,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:01,935 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:01,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-23 21:45:01,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:01,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:01,975 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:01,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-23 21:45:01,977 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 21:45:01,978 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:02,007 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 21:45:02,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:02,024 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:45:02,024 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:45:02,024 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:45:02,024 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:45:02,024 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:45:02,024 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:02,024 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:45:02,024 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:45:02,024 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration3_Loop [2023-11-23 21:45:02,025 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:45:02,025 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:45:02,026 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:02,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:02,038 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:02,042 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:02,185 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:45:02,185 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:45:02,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:02,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:02,187 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:02,193 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 [2023-11-23 21:45:02,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-23 21:45:02,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:02,209 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:02,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:02,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:45:02,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:02,210 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:45:02,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:02,224 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:45:02,230 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 21:45:02,230 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 21:45:02,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:02,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:02,232 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:02,235 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:45:02,236 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 21:45:02,236 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:45:02,236 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = -2*ULTIMATE.start_main_~a~0#1 + 1 Supporting invariants [] [2023-11-23 21:45:02,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-23 21:45:02,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:02,266 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 21:45:02,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:02,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:45:02,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:02,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:45:02,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:02,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:02,380 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-23 21:45:02,381 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 24 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-23 21:45:02,426 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 24 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) Result 50 states and 62 transitions. Complement of second has 6 states. [2023-11-23 21:45:02,427 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 [2023-11-23 21:45:02,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-23 21:45:02,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2023-11-23 21:45:02,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-23 21:45:02,431 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:02,432 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 16 letters. Loop has 4 letters. [2023-11-23 21:45:02,432 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:02,432 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 8 letters. [2023-11-23 21:45:02,433 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:02,433 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 62 transitions. [2023-11-23 21:45:02,438 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:45:02,440 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 41 states and 51 transitions. [2023-11-23 21:45:02,440 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2023-11-23 21:45:02,441 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-23 21:45:02,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2023-11-23 21:45:02,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:45:02,441 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 51 transitions. [2023-11-23 21:45:02,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2023-11-23 21:45:02,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2023-11-23 21:45:02,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 35 states have internal predecessors, (46), 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) [2023-11-23 21:45:02,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2023-11-23 21:45:02,450 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 46 transitions. [2023-11-23 21:45:02,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:45:02,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:45:02,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:45:02,452 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2023-11-23 21:45:02,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:45:02,485 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2023-11-23 21:45:02,485 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 33 transitions. [2023-11-23 21:45:02,489 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:45:02,491 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 16 states and 17 transitions. [2023-11-23 21:45:02,492 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-11-23 21:45:02,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2023-11-23 21:45:02,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 17 transitions. [2023-11-23 21:45:02,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:45:02,492 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-23 21:45:02,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 17 transitions. [2023-11-23 21:45:02,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-23 21:45:02,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.0625) internal successors, (17), 15 states have internal predecessors, (17), 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) [2023-11-23 21:45:02,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2023-11-23 21:45:02,494 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-23 21:45:02,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:45:02,499 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-23 21:45:02,499 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-23 21:45:02,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 17 transitions. [2023-11-23 21:45:02,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:45:02,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:45:02,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:45:02,502 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1] [2023-11-23 21:45:02,502 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 21:45:02,503 INFO L748 eck$LassoCheckResult]: Stem: 548#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 549#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 547#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 545#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 546#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 550#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 551#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 560#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 559#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 558#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 557#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 556#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 553#L22-2 [2023-11-23 21:45:02,503 INFO L750 eck$LassoCheckResult]: Loop: 553#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 554#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 555#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 552#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 553#L22-2 [2023-11-23 21:45:02,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:02,504 INFO L85 PathProgramCache]: Analyzing trace with hash 898884598, now seen corresponding path program 2 times [2023-11-23 21:45:02,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:02,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502108580] [2023-11-23 21:45:02,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:02,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:02,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:45:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:02,545 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:45:02,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:02,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1571592, now seen corresponding path program 1 times [2023-11-23 21:45:02,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:02,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501379213] [2023-11-23 21:45:02,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:02,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:02,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:45:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:02,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:45:02,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:02,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1065427843, now seen corresponding path program 3 times [2023-11-23 21:45:02,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:02,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530563648] [2023-11-23 21:45:02,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:02,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:02,586 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:45:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:02,597 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:45:02,891 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:45:02,891 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:45:02,891 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:45:02,891 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:45:02,891 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 21:45:02,892 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:02,892 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:45:02,892 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:45:02,892 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration4_Loop [2023-11-23 21:45:02,892 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:45:02,892 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:45:02,895 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:03,005 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:03,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:03,106 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-23 21:45:03,745 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:45:03,745 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 21:45:03,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:03,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:03,746 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:03,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:03,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:03,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-23 21:45:03,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:03,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:03,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:03,833 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:03,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 21:45:03,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:03,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-23 21:45:03,911 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:45:03,911 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~a~0#1=2, ULTIMATE.start_main_#t~nondet2#1=-2, ULTIMATE.start_main_~b~0#1=-2} Honda state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~a~0#1=2, ULTIMATE.start_main_#t~nondet2#1=-2, ULTIMATE.start_main_~b~0#1=-2} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=2, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2023-11-23 21:45:03,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:03,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:03,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:03,925 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:03,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:03,931 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:03,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-23 21:45:03,976 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:45:03,976 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 21:45:04,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:04,224 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:45:04,224 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:45:04,224 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:45:04,224 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:45:04,225 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 21:45:04,225 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:04,225 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:45:04,225 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:45:04,225 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration4_Lasso [2023-11-23 21:45:04,225 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:45:04,226 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:45:04,228 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:04,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:04,323 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:04,327 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:04,444 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-23 21:45:05,162 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:45:05,162 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 21:45:05,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:05,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:05,164 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:05,173 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:05,173 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:05,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-23 21:45:05,204 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:45:05,204 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 21:45:05,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:05,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:05,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:05,228 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:05,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-23 21:45:05,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:05,232 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:05,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-23 21:45:05,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:05,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:05,354 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:05,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-23 21:45:05,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 21:45:05,357 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:05,494 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 21:45:05,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:05,506 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:45:05,506 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:45:05,506 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:45:05,506 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:45:05,506 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:45:05,506 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:05,506 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:45:05,507 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:45:05,507 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration4_Lasso [2023-11-23 21:45:05,507 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:45:05,507 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:45:05,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:05,516 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:05,519 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:05,607 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:05,715 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-23 21:45:06,392 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:45:06,392 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:45:06,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:06,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:06,394 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:06,401 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 [2023-11-23 21:45:06,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-23 21:45:06,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:06,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:06,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:06,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:45:06,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:06,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:45:06,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:06,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:45:06,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-23 21:45:06,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:06,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:06,460 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:06,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-23 21:45:06,461 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 [2023-11-23 21:45:06,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:06,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:06,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:06,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:45:06,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:06,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:45:06,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:06,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:45:06,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-23 21:45:06,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:06,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:06,491 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:06,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-23 21:45:06,493 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 [2023-11-23 21:45:06,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:06,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:06,507 INFO L204 nArgumentSynthesizer]: 7 loop disjuncts [2023-11-23 21:45:06,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:06,675 INFO L401 nArgumentSynthesizer]: We have 126 Motzkin's Theorem applications. [2023-11-23 21:45:06,675 INFO L402 nArgumentSynthesizer]: A total of 14 supporting invariants were added. [2023-11-23 21:45:08,217 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:45:09,286 INFO L443 ModelExtractionUtils]: Simplification made 32 calls to the SMT solver. [2023-11-23 21:45:09,286 INFO L444 ModelExtractionUtils]: 47 out of 76 variables were initially zero. Simplification set additionally 23 variables to zero. [2023-11-23 21:45:09,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:09,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:09,289 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:09,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-23 21:45:09,290 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:45:09,318 INFO L438 nArgumentSynthesizer]: Removed 13 redundant supporting invariants from a total of 14. [2023-11-23 21:45:09,318 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:45:09,318 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = -2*ULTIMATE.start_main_~a~0#1 + 4294967295 Supporting invariants [2*ULTIMATE.start_main_~b~0#1 - 2*ULTIMATE.start_main_~a~0#1 + 3 >= 0] [2023-11-23 21:45:09,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:09,355 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-23 21:45:09,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:09,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 21:45:09,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:09,608 WARN L260 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:45:09,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:09,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:09,727 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 4 loop predicates [2023-11-23 21:45:09,727 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 17 transitions. cyclomatic complexity: 2 Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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) [2023-11-23 21:45:09,857 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 17 transitions. cyclomatic complexity: 2. Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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) Result 30 states and 33 transitions. Complement of second has 11 states. [2023-11-23 21:45:09,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-23 21:45:09,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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) [2023-11-23 21:45:09,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-11-23 21:45:09,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-23 21:45:09,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:09,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. Stem has 16 letters. Loop has 4 letters. [2023-11-23 21:45:09,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:09,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. Stem has 12 letters. Loop has 8 letters. [2023-11-23 21:45:09,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:09,860 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 33 transitions. [2023-11-23 21:45:09,861 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:45:09,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 21 states and 23 transitions. [2023-11-23 21:45:09,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-23 21:45:09,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-23 21:45:09,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 23 transitions. [2023-11-23 21:45:09,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:45:09,862 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 23 transitions. [2023-11-23 21:45:09,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 23 transitions. [2023-11-23 21:45:09,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2023-11-23 21:45:09,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.1) internal successors, (22), 19 states have internal predecessors, (22), 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) [2023-11-23 21:45:09,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2023-11-23 21:45:09,865 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-11-23 21:45:09,865 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-11-23 21:45:09,865 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-23 21:45:09,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 22 transitions. [2023-11-23 21:45:09,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:45:09,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:45:09,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:45:09,867 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 1, 1, 1] [2023-11-23 21:45:09,867 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-23 21:45:09,867 INFO L748 eck$LassoCheckResult]: Stem: 694#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 695#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 699#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 687#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 688#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 697#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 693#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 689#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 690#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 698#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 706#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 705#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 702#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 704#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 703#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 701#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 696#L22-4 [2023-11-23 21:45:09,868 INFO L750 eck$LassoCheckResult]: Loop: 696#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 691#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 692#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 696#L22-4 [2023-11-23 21:45:09,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:09,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1065427845, now seen corresponding path program 2 times [2023-11-23 21:45:09,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:09,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540014211] [2023-11-23 21:45:09,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:09,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:10,154 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:10,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:45:10,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540014211] [2023-11-23 21:45:10,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540014211] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:45:10,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524402464] [2023-11-23 21:45:10,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:45:10,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:45:10,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:10,157 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:45:10,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-23 21:45:10,209 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 21:45:10,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:45:10,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-23 21:45:10,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:10,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:10,441 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:10,441 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:45:10,816 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:10,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524402464] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:45:10,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:45:10,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 12] total 29 [2023-11-23 21:45:10,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308821620] [2023-11-23 21:45:10,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:45:10,819 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-23 21:45:10,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:10,819 INFO L85 PathProgramCache]: Analyzing trace with hash 52249, now seen corresponding path program 3 times [2023-11-23 21:45:10,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:10,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070091529] [2023-11-23 21:45:10,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:10,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:10,823 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:45:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:10,828 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:45:10,880 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:45:10,881 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:45:10,881 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:45:10,881 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:45:10,881 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 21:45:10,881 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:10,881 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:45:10,882 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:45:10,882 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration5_Loop [2023-11-23 21:45:10,882 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:45:10,882 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:45:10,883 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:10,886 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:11,005 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:45:11,005 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 21:45:11,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:11,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:11,009 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:11,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:11,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:11,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-23 21:45:11,052 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:45:11,052 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 21:45:11,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:11,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:11,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:11,080 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:11,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:11,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:11,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-23 21:45:11,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:11,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:11,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:11,151 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:11,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 21:45:11,157 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:11,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-23 21:45:11,964 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 21:45:11,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-11-23 21:45:11,971 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:45:11,971 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:45:11,971 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:45:11,971 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:45:11,971 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:45:11,971 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:11,971 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:45:11,972 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:45:11,972 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration5_Loop [2023-11-23 21:45:11,972 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:45:11,972 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:45:11,973 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:11,982 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:12,118 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:45:12,118 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:45:12,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:12,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:12,120 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:12,123 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 [2023-11-23 21:45:12,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-23 21:45:12,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:12,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:12,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:12,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:45:12,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:12,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:45:12,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:12,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:45:12,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:12,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:12,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:12,188 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:12,192 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 [2023-11-23 21:45:12,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-23 21:45:12,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:12,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:12,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:12,209 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-23 21:45:12,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:12,213 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-23 21:45:12,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:12,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:45:12,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:12,248 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-23 21:45:12,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:12,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:12,249 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:12,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-23 21:45:12,252 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 [2023-11-23 21:45:12,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:12,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:12,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:12,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:45:12,265 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-23 21:45:12,266 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-23 21:45:12,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:12,268 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:45:12,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2023-11-23 21:45:12,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:12,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:12,286 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:12,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-23 21:45:12,288 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 [2023-11-23 21:45:12,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:12,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:12,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:12,301 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-23 21:45:12,301 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-23 21:45:12,313 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:45:12,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:12,328 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:45:12,336 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 21:45:12,336 INFO L444 ModelExtractionUtils]: 6 out of 11 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-23 21:45:12,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:12,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:12,344 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:12,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-23 21:45:12,347 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:45:12,347 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 21:45:12,347 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:45:12,347 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = -1*ULTIMATE.start_main_#t~nondet2#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-23 21:45:12,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:12,373 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 21:45:12,374 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated [2023-11-23 21:45:12,375 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated [2023-11-23 21:45:12,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:12,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:45:12,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:12,445 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:45:12,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:12,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:12,590 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-23 21:45:12,590 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2023-11-23 21:45:12,645 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 30 states and 34 transitions. Complement of second has 7 states. [2023-11-23 21:45:12,646 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 [2023-11-23 21:45:12,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2023-11-23 21:45:12,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-11-23 21:45:12,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 16 letters. Loop has 3 letters. [2023-11-23 21:45:12,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:12,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 19 letters. Loop has 3 letters. [2023-11-23 21:45:12,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:12,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 16 letters. Loop has 6 letters. [2023-11-23 21:45:12,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:12,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 34 transitions. [2023-11-23 21:45:12,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:45:12,650 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 28 states and 32 transitions. [2023-11-23 21:45:12,650 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-23 21:45:12,650 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-23 21:45:12,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 32 transitions. [2023-11-23 21:45:12,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:45:12,650 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 32 transitions. [2023-11-23 21:45:12,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 32 transitions. [2023-11-23 21:45:12,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2023-11-23 21:45:12,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 25 states have internal predecessors, (30), 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) [2023-11-23 21:45:12,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2023-11-23 21:45:12,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:12,655 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-11-23 21:45:12,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:45:12,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-23 21:45:12,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2023-11-23 21:45:12,657 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 30 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 30 states have internal predecessors, (46), 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) [2023-11-23 21:45:12,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:45:12,937 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2023-11-23 21:45:12,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 47 transitions. [2023-11-23 21:45:12,938 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-23 21:45:12,939 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 43 states and 47 transitions. [2023-11-23 21:45:12,939 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-23 21:45:12,939 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-23 21:45:12,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 47 transitions. [2023-11-23 21:45:12,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:45:12,940 INFO L218 hiAutomatonCegarLoop]: Abstraction has 43 states and 47 transitions. [2023-11-23 21:45:12,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 47 transitions. [2023-11-23 21:45:12,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2023-11-23 21:45:12,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 41 states have internal predecessors, (46), 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) [2023-11-23 21:45:12,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2023-11-23 21:45:12,943 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 46 transitions. [2023-11-23 21:45:12,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 21:45:12,944 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 46 transitions. [2023-11-23 21:45:12,944 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-23 21:45:12,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 46 transitions. [2023-11-23 21:45:12,945 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:45:12,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:45:12,946 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:45:12,947 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [9, 8, 8, 7, 1, 1, 1] [2023-11-23 21:45:12,947 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 21:45:12,947 INFO L748 eck$LassoCheckResult]: Stem: 1027#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1028#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 1024#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1020#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1021#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1032#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1060#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1022#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1023#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1031#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1025#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1026#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1057#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1056#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1055#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1054#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1053#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1052#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1051#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1050#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1049#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1048#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1047#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1046#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1045#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1044#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1043#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1042#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1039#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1041#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1040#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1038#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 1037#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1035#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1061#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1058#L22-2 [2023-11-23 21:45:12,947 INFO L750 eck$LassoCheckResult]: Loop: 1058#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1029#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1030#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1059#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1058#L22-2 [2023-11-23 21:45:12,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:12,948 INFO L85 PathProgramCache]: Analyzing trace with hash -213061435, now seen corresponding path program 3 times [2023-11-23 21:45:12,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:12,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583975400] [2023-11-23 21:45:12,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:12,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:13,843 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:13,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:45:13,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583975400] [2023-11-23 21:45:13,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583975400] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:45:13,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158338793] [2023-11-23 21:45:13,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 21:45:13,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:45:13,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:13,845 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:45:13,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-23 21:45:13,916 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2023-11-23 21:45:13,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:45:13,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-23 21:45:13,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:14,612 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:14,612 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:45:15,785 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:15,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158338793] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:45:15,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:45:15,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 25] total 58 [2023-11-23 21:45:15,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971459021] [2023-11-23 21:45:15,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:45:15,787 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-23 21:45:15,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:15,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1571592, now seen corresponding path program 2 times [2023-11-23 21:45:15,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:15,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469069982] [2023-11-23 21:45:15,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:15,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:15,792 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:45:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:15,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:45:16,024 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:45:16,024 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:45:16,024 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:45:16,024 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:45:16,024 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 21:45:16,024 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:16,024 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:45:16,024 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:45:16,024 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration6_Loop [2023-11-23 21:45:16,025 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:45:16,025 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:45:16,026 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:16,029 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:16,155 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-23 21:45:16,709 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:45:16,709 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 21:45:16,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:16,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:16,711 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:16,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-23 21:45:16,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:16,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:16,731 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:45:16,731 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 21:45:16,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:16,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:16,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:16,753 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:16,755 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:16,755 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:16,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-23 21:45:16,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:16,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:16,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:16,842 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:16,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-23 21:45:16,849 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 21:45:16,849 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:16,926 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:45:16,927 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~a~0#1=2, ULTIMATE.start_main_#t~nondet2#1=-2, ULTIMATE.start_main_~b~0#1=-2} Honda state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~a~0#1=2, ULTIMATE.start_main_#t~nondet2#1=-2, ULTIMATE.start_main_~b~0#1=-2} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=2, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2023-11-23 21:45:16,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:16,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:45:16,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-11-23 21:45:16,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=640, Invalid=2666, Unknown=0, NotChecked=0, Total=3306 [2023-11-23 21:45:16,936 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. cyclomatic complexity: 7 Second operand has 58 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 58 states have internal predecessors, (97), 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) [2023-11-23 21:45:17,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:45:17,937 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2023-11-23 21:45:17,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 71 transitions. [2023-11-23 21:45:17,939 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-23 21:45:17,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 67 states and 71 transitions. [2023-11-23 21:45:17,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-23 21:45:17,940 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-23 21:45:17,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 71 transitions. [2023-11-23 21:45:17,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:45:17,940 INFO L218 hiAutomatonCegarLoop]: Abstraction has 67 states and 71 transitions. [2023-11-23 21:45:17,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 71 transitions. [2023-11-23 21:45:17,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2023-11-23 21:45:17,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.0606060606060606) internal successors, (70), 65 states have internal predecessors, (70), 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) [2023-11-23 21:45:17,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2023-11-23 21:45:17,947 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 70 transitions. [2023-11-23 21:45:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-23 21:45:17,949 INFO L428 stractBuchiCegarLoop]: Abstraction has 66 states and 70 transitions. [2023-11-23 21:45:17,950 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-23 21:45:17,950 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 70 transitions. [2023-11-23 21:45:17,951 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:45:17,954 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:45:17,954 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:45:17,970 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [15, 14, 14, 13, 1, 1, 1] [2023-11-23 21:45:17,970 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 21:45:17,971 INFO L748 eck$LassoCheckResult]: Stem: 1426#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1427#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 1424#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1420#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1421#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1432#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1425#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1422#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1423#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1430#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1431#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1484#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1481#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1480#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1479#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1478#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1477#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1476#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1475#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1474#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1473#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1472#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1471#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1470#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1469#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1468#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1467#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1466#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1465#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1464#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1463#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1462#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1461#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1460#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1459#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1458#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1457#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1456#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1455#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1454#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1453#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1452#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1451#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1450#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1449#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1448#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1447#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1446#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1445#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1444#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1443#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1442#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1439#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1441#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1440#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1438#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 1437#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1435#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1485#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1482#L22-2 [2023-11-23 21:45:17,971 INFO L750 eck$LassoCheckResult]: Loop: 1482#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1428#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1429#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1483#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1482#L22-2 [2023-11-23 21:45:17,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:17,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1273996581, now seen corresponding path program 4 times [2023-11-23 21:45:17,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:17,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128809532] [2023-11-23 21:45:17,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:17,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:18,044 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:45:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:18,120 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:45:18,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:18,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1571592, now seen corresponding path program 3 times [2023-11-23 21:45:18,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:18,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186074966] [2023-11-23 21:45:18,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:18,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:18,126 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:45:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:18,131 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:45:18,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:18,132 INFO L85 PathProgramCache]: Analyzing trace with hash 745232610, now seen corresponding path program 5 times [2023-11-23 21:45:18,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:18,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103277595] [2023-11-23 21:45:18,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:18,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:18,169 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:45:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:18,203 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:45:18,535 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:45:18,535 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:45:18,535 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:45:18,535 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:45:18,535 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 21:45:18,535 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:18,535 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:45:18,535 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:45:18,535 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration7_Loop [2023-11-23 21:45:18,535 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:45:18,536 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:45:18,537 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:18,633 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:18,738 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-23 21:45:19,377 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:45:19,377 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 21:45:19,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:19,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:19,378 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:19,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-23 21:45:19,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:19,381 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:19,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:19,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:19,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:19,450 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:19,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-23 21:45:19,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 21:45:19,452 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:19,504 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:45:19,505 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~a~0#1=2, ULTIMATE.start_main_#t~nondet2#1=-2, ULTIMATE.start_main_~b~0#1=-2} Honda state: {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~a~0#1=2, ULTIMATE.start_main_#t~nondet2#1=-2, ULTIMATE.start_main_~b~0#1=-2} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=2, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2023-11-23 21:45:19,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-11-23 21:45:19,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:19,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:19,510 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:19,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-23 21:45:19,512 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:19,512 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:19,527 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:45:19,527 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 21:45:19,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-11-23 21:45:22,591 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:45:22,591 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:45:22,592 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:45:22,592 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:45:22,592 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 21:45:22,592 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:22,592 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:45:22,592 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:45:22,592 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration7_Lasso [2023-11-23 21:45:22,593 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:45:22,593 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:45:22,595 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:22,599 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:22,603 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:22,606 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:22,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:22,724 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:22,869 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-23 21:45:23,549 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:45:23,549 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 21:45:23,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:23,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:23,551 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:23,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-23 21:45:23,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:23,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:23,570 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:45:23,571 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 21:45:23,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:23,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:23,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:23,587 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:23,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-23 21:45:23,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:23,604 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:45:23,604 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 21:45:23,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2023-11-23 21:45:23,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:23,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:23,621 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:23,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-23 21:45:23,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:23,623 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:23,637 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:45:23,637 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 21:45:23,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:23,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:23,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:23,658 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:23,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-23 21:45:23,661 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:23,661 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:23,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2023-11-23 21:45:23,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:23,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:23,701 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:23,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-23 21:45:23,703 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 21:45:23,703 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:23,767 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 21:45:23,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2023-11-23 21:45:23,770 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:45:23,771 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:45:23,771 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:45:23,771 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:45:23,771 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:45:23,771 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:23,771 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:45:23,771 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:45:23,771 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration7_Lasso [2023-11-23 21:45:23,771 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:45:23,771 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:45:23,773 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:23,777 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:23,779 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:23,782 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:23,814 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:23,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:24,030 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-23 21:45:24,688 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:45:24,688 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:45:24,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:24,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:24,690 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:24,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-11-23 21:45:24,692 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 [2023-11-23 21:45:24,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:24,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:24,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:45:24,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:24,706 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:45:24,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:45:24,710 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:45:24,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2023-11-23 21:45:24,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:24,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:24,728 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:24,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2023-11-23 21:45:24,730 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 [2023-11-23 21:45:24,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:24,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:24,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:24,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:45:24,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:24,744 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:45:24,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:24,746 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:45:24,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:24,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:24,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:24,763 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:24,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-23 21:45:24,765 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 [2023-11-23 21:45:24,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:24,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:24,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:24,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:45:24,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:24,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:45:24,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:24,781 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:45:24,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:24,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:24,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:24,797 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:24,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-23 21:45:24,799 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 [2023-11-23 21:45:24,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:24,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:24,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:45:24,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:24,816 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:45:24,816 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:45:24,821 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:45:24,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:24,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:24,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:24,839 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:24,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-11-23 21:45:24,840 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 [2023-11-23 21:45:24,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:24,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:24,854 INFO L204 nArgumentSynthesizer]: 7 loop disjuncts [2023-11-23 21:45:24,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:24,993 INFO L401 nArgumentSynthesizer]: We have 126 Motzkin's Theorem applications. [2023-11-23 21:45:24,993 INFO L402 nArgumentSynthesizer]: A total of 14 supporting invariants were added. [2023-11-23 21:45:27,158 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:45:28,837 INFO L443 ModelExtractionUtils]: Simplification made 31 calls to the SMT solver. [2023-11-23 21:45:28,837 INFO L444 ModelExtractionUtils]: 43 out of 76 variables were initially zero. Simplification set additionally 19 variables to zero. [2023-11-23 21:45:28,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:28,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:28,839 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:28,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-11-23 21:45:28,841 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:45:28,876 INFO L438 nArgumentSynthesizer]: Removed 11 redundant supporting invariants from a total of 14. [2023-11-23 21:45:28,876 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:45:28,876 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~a~0#1 + 2147483648 Supporting invariants [1*ULTIMATE.start_main_~a~0#1 >= 0, -1*ULTIMATE.start_main_~a~0#1 + 1*ULTIMATE.start_main_~b~0#1 + 1 >= 0, -1*ULTIMATE.start_main_~a~0#1 + 1*ULTIMATE.start_main_~x~0#1 + 2147483647 >= 0] [2023-11-23 21:45:28,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2023-11-23 21:45:28,915 INFO L156 tatePredicateManager]: 1 out of 3 supporting invariants were superfluous and have been removed [2023-11-23 21:45:28,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:29,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 21:45:29,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:29,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:29,782 WARN L260 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:45:29,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:29,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:29,941 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.19 stem predicates 4 loop predicates [2023-11-23 21:45:29,942 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7 Second operand has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 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) [2023-11-23 21:45:30,009 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7. Second operand has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 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 66 states and 70 transitions. Complement of second has 5 states. [2023-11-23 21:45:30,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-23 21:45:30,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 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) [2023-11-23 21:45:30,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2023-11-23 21:45:30,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 4 transitions. Stem has 59 letters. Loop has 4 letters. [2023-11-23 21:45:30,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:30,011 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:45:30,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:30,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 21:45:30,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:30,809 WARN L260 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:45:30,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:30,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:30,992 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.19 stem predicates 4 loop predicates [2023-11-23 21:45:30,992 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7 Second operand has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 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) [2023-11-23 21:45:31,048 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7. Second operand has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 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 66 states and 70 transitions. Complement of second has 5 states. [2023-11-23 21:45:31,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-23 21:45:31,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 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) [2023-11-23 21:45:31,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2023-11-23 21:45:31,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 4 transitions. Stem has 59 letters. Loop has 4 letters. [2023-11-23 21:45:31,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:31,051 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:45:31,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:31,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 21:45:31,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:31,865 WARN L260 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:45:31,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:32,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:32,003 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.19 stem predicates 4 loop predicates [2023-11-23 21:45:32,003 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7 Second operand has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 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) [2023-11-23 21:45:33,170 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7. Second operand has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 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 81 states and 87 transitions. Complement of second has 44 states. [2023-11-23 21:45:33,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 27 states 22 stem states 3 non-accepting loop states 2 accepting loop states [2023-11-23 21:45:33,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 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) [2023-11-23 21:45:33,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 89 transitions. [2023-11-23 21:45:33,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 89 transitions. Stem has 59 letters. Loop has 4 letters. [2023-11-23 21:45:33,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:33,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 89 transitions. Stem has 63 letters. Loop has 4 letters. [2023-11-23 21:45:33,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:33,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 89 transitions. Stem has 59 letters. Loop has 8 letters. [2023-11-23 21:45:33,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:33,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 87 transitions. [2023-11-23 21:45:33,178 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-23 21:45:33,179 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 76 states and 81 transitions. [2023-11-23 21:45:33,179 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-23 21:45:33,180 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-23 21:45:33,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 81 transitions. [2023-11-23 21:45:33,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:45:33,181 INFO L218 hiAutomatonCegarLoop]: Abstraction has 76 states and 81 transitions. [2023-11-23 21:45:33,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states and 81 transitions. [2023-11-23 21:45:33,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2023-11-23 21:45:33,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 70 states have (on average 1.0714285714285714) internal successors, (75), 69 states have internal predecessors, (75), 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) [2023-11-23 21:45:33,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2023-11-23 21:45:33,186 INFO L240 hiAutomatonCegarLoop]: Abstraction has 70 states and 75 transitions. [2023-11-23 21:45:33,206 INFO L428 stractBuchiCegarLoop]: Abstraction has 70 states and 75 transitions. [2023-11-23 21:45:33,206 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-23 21:45:33,206 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states and 75 transitions. [2023-11-23 21:45:33,207 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-23 21:45:33,207 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:45:33,207 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:45:33,209 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [15, 14, 14, 13, 1, 1, 1] [2023-11-23 21:45:33,209 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1] [2023-11-23 21:45:33,210 INFO L748 eck$LassoCheckResult]: Stem: 2454#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2455#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2461#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2472#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2459#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2458#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2453#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2450#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2451#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2460#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2517#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2516#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2515#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2514#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2513#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2512#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2511#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2510#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2509#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2508#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2507#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2506#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2505#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2504#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2503#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2502#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2501#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2500#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2499#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2498#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2497#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2496#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2495#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2494#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2493#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2492#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2491#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2490#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2489#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2488#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2487#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2486#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2485#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2484#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2483#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2482#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2481#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2480#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2479#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2478#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2477#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2476#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2468#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2473#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2470#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2467#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 2456#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2452#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2448#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2449#L22-2 [2023-11-23 21:45:33,210 INFO L750 eck$LassoCheckResult]: Loop: 2449#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2471#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2469#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2462#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 2464#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2466#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2465#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2449#L22-2 [2023-11-23 21:45:33,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:33,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1273996581, now seen corresponding path program 6 times [2023-11-23 21:45:33,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:33,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942585249] [2023-11-23 21:45:33,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:33,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:33,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:45:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:33,272 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:45:33,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:33,273 INFO L85 PathProgramCache]: Analyzing trace with hash -425380106, now seen corresponding path program 1 times [2023-11-23 21:45:33,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:33,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048528160] [2023-11-23 21:45:33,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:33,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:33,279 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:45:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:33,283 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:45:33,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:33,284 INFO L85 PathProgramCache]: Analyzing trace with hash 538694364, now seen corresponding path program 7 times [2023-11-23 21:45:33,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:33,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318755325] [2023-11-23 21:45:33,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:33,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:33,322 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:45:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:33,358 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:45:33,682 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:45:33,682 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:45:33,682 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:45:33,683 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:45:33,683 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 21:45:33,683 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:33,683 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:45:33,683 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:45:33,683 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration8_Loop [2023-11-23 21:45:33,683 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:45:33,683 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:45:33,685 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:33,690 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:34,084 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:45:34,084 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 21:45:34,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:34,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:34,085 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:34,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-11-23 21:45:34,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:34,087 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:34,102 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:45:34,102 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 21:45:34,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:34,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:34,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:34,118 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:34,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-11-23 21:45:34,120 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:34,120 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:34,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2023-11-23 21:45:34,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:34,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:34,171 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:34,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-11-23 21:45:34,173 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 21:45:34,174 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:34,216 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 21:45:34,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2023-11-23 21:45:34,220 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:45:34,220 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:45:34,220 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:45:34,220 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:45:34,220 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:45:34,220 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:34,220 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:45:34,220 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:45:34,220 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration8_Loop [2023-11-23 21:45:34,220 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:45:34,220 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:45:34,222 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:34,224 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:34,600 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:45:34,601 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:45:34,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:34,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:34,603 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:34,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2023-11-23 21:45:34,605 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 [2023-11-23 21:45:34,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:34,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:34,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:34,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:45:34,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:34,616 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:45:34,616 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:34,617 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:45:34,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:34,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:34,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:34,630 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:34,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2023-11-23 21:45:34,633 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 [2023-11-23 21:45:34,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:34,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:34,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:34,644 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2023-11-23 21:45:34,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:34,648 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:45:34,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:34,658 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:45:34,662 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 21:45:34,662 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 21:45:34,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:34,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:34,664 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:34,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2023-11-23 21:45:34,671 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:45:34,671 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 21:45:34,671 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:45:34,671 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = -1*ULTIMATE.start_main_~a~0#1 + 2147483647 Supporting invariants [] [2023-11-23 21:45:34,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2023-11-23 21:45:34,690 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 21:45:34,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:34,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:45:34,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:34,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:45:34,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:34,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:35,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:35,094 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-23 21:45:35,094 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 70 states and 75 transitions. cyclomatic complexity: 8 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-11-23 21:45:35,277 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 70 states and 75 transitions. cyclomatic complexity: 8. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 140 states and 151 transitions. Complement of second has 12 states. [2023-11-23 21:45:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-23 21:45:35,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-11-23 21:45:35,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 17 transitions. [2023-11-23 21:45:35,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 17 transitions. Stem has 59 letters. Loop has 7 letters. [2023-11-23 21:45:35,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:35,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 17 transitions. Stem has 66 letters. Loop has 7 letters. [2023-11-23 21:45:35,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:35,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 17 transitions. Stem has 59 letters. Loop has 14 letters. [2023-11-23 21:45:35,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:35,290 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 140 states and 151 transitions. [2023-11-23 21:45:35,300 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-23 21:45:35,303 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 140 states to 76 states and 82 transitions. [2023-11-23 21:45:35,304 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-23 21:45:35,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-23 21:45:35,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 82 transitions. [2023-11-23 21:45:35,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:45:35,305 INFO L218 hiAutomatonCegarLoop]: Abstraction has 76 states and 82 transitions. [2023-11-23 21:45:35,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states and 82 transitions. [2023-11-23 21:45:35,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72. [2023-11-23 21:45:35,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 72 states have (on average 1.0694444444444444) internal successors, (77), 71 states have internal predecessors, (77), 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) [2023-11-23 21:45:35,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2023-11-23 21:45:35,317 INFO L240 hiAutomatonCegarLoop]: Abstraction has 72 states and 77 transitions. [2023-11-23 21:45:35,317 INFO L428 stractBuchiCegarLoop]: Abstraction has 72 states and 77 transitions. [2023-11-23 21:45:35,318 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-23 21:45:35,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states and 77 transitions. [2023-11-23 21:45:35,319 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-23 21:45:35,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:45:35,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:45:35,320 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [16, 16, 14, 14, 2, 1, 1] [2023-11-23 21:45:35,321 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-23 21:45:35,321 INFO L748 eck$LassoCheckResult]: Stem: 2899#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2900#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2896#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2897#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2903#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2902#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2898#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2894#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2895#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2904#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2963#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2962#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2961#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2960#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2959#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2958#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2957#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2956#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2955#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2954#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2953#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2952#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2951#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2950#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2949#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2948#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2947#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2946#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2945#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2944#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2943#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2942#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2941#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2940#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2939#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2938#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2937#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2936#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2935#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2934#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2933#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2932#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2931#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2930#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2929#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2928#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2927#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2926#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2925#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2924#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2923#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2922#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2921#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2920#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2918#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2919#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 2915#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2916#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2911#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2908#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2910#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2909#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2907#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 2905#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2901#L20-2 [2023-11-23 21:45:35,322 INFO L750 eck$LassoCheckResult]: Loop: 2901#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2892#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 2893#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2901#L20-2 [2023-11-23 21:45:35,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:35,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1627374391, now seen corresponding path program 8 times [2023-11-23 21:45:35,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:35,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553727572] [2023-11-23 21:45:35,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:35,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:35,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:45:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:35,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:45:35,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:35,394 INFO L85 PathProgramCache]: Analyzing trace with hash 40819, now seen corresponding path program 4 times [2023-11-23 21:45:35,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:35,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730045916] [2023-11-23 21:45:35,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:35,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:35,397 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:45:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:45:35,400 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:45:35,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:35,401 INFO L85 PathProgramCache]: Analyzing trace with hash -480343939, now seen corresponding path program 9 times [2023-11-23 21:45:35,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:45:35,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836707792] [2023-11-23 21:45:35,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:45:35,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:45:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:36,257 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 499 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:36,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:45:36,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836707792] [2023-11-23 21:45:36,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836707792] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:45:36,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:45:36,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-11-23 21:45:36,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681890662] [2023-11-23 21:45:36,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:45:36,309 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:45:36,309 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:45:36,309 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:45:36,310 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:45:36,310 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 21:45:36,310 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:36,310 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:45:36,310 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:45:36,310 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration9_Loop [2023-11-23 21:45:36,310 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:45:36,310 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:45:36,311 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:36,326 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:36,328 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:36,413 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:45:36,414 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 21:45:36,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:36,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:36,415 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:36,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2023-11-23 21:45:36,417 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:45:36,417 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:36,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:36,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:36,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:36,450 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:36,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2023-11-23 21:45:36,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 21:45:36,453 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:45:36,821 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 21:45:36,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:36,827 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:45:36,827 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:45:36,827 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:45:36,827 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:45:36,827 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:45:36,827 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:36,827 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:45:36,827 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:45:36,828 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration9_Loop [2023-11-23 21:45:36,828 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:45:36,828 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:45:36,828 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:36,844 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:36,846 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:45:36,937 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:45:36,937 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:45:36,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:36,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:36,939 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:36,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2023-11-23 21:45:36,952 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 [2023-11-23 21:45:36,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:36,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:36,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:36,965 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-23 21:45:36,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:36,968 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-23 21:45:36,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:36,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:45:36,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2023-11-23 21:45:36,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:36,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:36,992 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:36,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2023-11-23 21:45:36,994 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 [2023-11-23 21:45:37,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:37,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:37,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:37,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:45:37,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:37,007 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:45:37,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:37,009 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:45:37,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:37,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:37,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:37,026 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:37,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2023-11-23 21:45:37,028 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 [2023-11-23 21:45:37,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:37,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:37,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:37,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:45:37,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:45:37,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:45:37,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:37,043 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:45:37,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2023-11-23 21:45:37,058 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-23 21:45:37,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:37,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:37,060 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:37,069 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 [2023-11-23 21:45:37,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2023-11-23 21:45:37,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:45:37,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:45:37,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:45:37,085 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-23 21:45:37,086 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-23 21:45:37,090 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:45:37,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:45:37,099 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:45:37,107 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-23 21:45:37,107 INFO L444 ModelExtractionUtils]: 4 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-23 21:45:37,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:45:37,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:45:37,108 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:45:37,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2023-11-23 21:45:37,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:45:37,110 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 21:45:37,111 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:45:37,111 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-23 21:45:37,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2023-11-23 21:45:37,129 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 21:45:37,137 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated [2023-11-23 21:45:37,137 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0) could not be translated [2023-11-23 21:45:37,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:37,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:45:37,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:37,307 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:45:37,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:37,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:37,428 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-23 21:45:37,428 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 72 states and 77 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-23 21:45:37,463 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 72 states and 77 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) Result 75 states and 80 transitions. Complement of second has 5 states. [2023-11-23 21:45:37,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-23 21:45:37,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-23 21:45:37,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-23 21:45:37,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 64 letters. Loop has 3 letters. [2023-11-23 21:45:37,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:37,466 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:45:37,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:37,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:45:37,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:37,644 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:45:37,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:37,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:37,764 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-23 21:45:37,764 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 72 states and 77 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-23 21:45:37,858 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 72 states and 77 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) Result 75 states and 80 transitions. Complement of second has 7 states. [2023-11-23 21:45:37,858 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 [2023-11-23 21:45:37,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-23 21:45:37,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-23 21:45:37,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 64 letters. Loop has 3 letters. [2023-11-23 21:45:37,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:37,860 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:45:37,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:45:37,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:37,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:45:37,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:45:38,052 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:45:38,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:45:38,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:45:38,174 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-23 21:45:38,174 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 72 states and 77 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-23 21:45:38,223 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 72 states and 77 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) Result 121 states and 131 transitions. Complement of second has 6 states. [2023-11-23 21:45:38,224 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 [2023-11-23 21:45:38,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-23 21:45:38,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-23 21:45:38,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 64 letters. Loop has 3 letters. [2023-11-23 21:45:38,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:38,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 67 letters. Loop has 3 letters. [2023-11-23 21:45:38,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:38,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 64 letters. Loop has 6 letters. [2023-11-23 21:45:38,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:45:38,228 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 121 states and 131 transitions. [2023-11-23 21:45:38,229 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-23 21:45:38,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 121 states to 0 states and 0 transitions. [2023-11-23 21:45:38,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-23 21:45:38,230 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-23 21:45:38,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-23 21:45:38,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:45:38,230 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:45:38,231 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:45:38,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:45:38,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-23 21:45:38,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=233, Unknown=0, NotChecked=0, Total=462 [2023-11-23 21:45:38,232 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 22 states have internal predecessors, (67), 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) [2023-11-23 21:45:38,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:45:38,233 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-23 21:45:38,233 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-23 21:45:38,233 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-23 21:45:38,233 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:45:38,233 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-23 21:45:38,233 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-23 21:45:38,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-23 21:45:38,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:45:38,234 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:45:38,234 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:45:38,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:45:38,235 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:45:38,235 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-23 21:45:38,235 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:45:38,235 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-23 21:45:38,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-23 21:45:38,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 09:45:38 BoogieIcfgContainer [2023-11-23 21:45:38,249 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-23 21:45:38,250 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:45:38,250 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:45:38,251 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:45:38,251 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:44:55" (3/4) ... [2023-11-23 21:45:38,254 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:45:38,255 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:45:38,256 INFO L158 Benchmark]: Toolchain (without parser) took 43208.22ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 127.0MB in the beginning and 161.5MB in the end (delta: -34.5MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2023-11-23 21:45:38,257 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:45:38,257 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.45ms. Allocated memory is still 157.3MB. Free memory was 127.0MB in the beginning and 118.0MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 21:45:38,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.38ms. Allocated memory is still 157.3MB. Free memory was 118.0MB in the beginning and 116.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:45:38,258 INFO L158 Benchmark]: Boogie Preprocessor took 34.38ms. Allocated memory is still 157.3MB. Free memory was 116.6MB in the beginning and 115.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:45:38,258 INFO L158 Benchmark]: RCFGBuilder took 286.99ms. Allocated memory is still 157.3MB. Free memory was 115.3MB in the beginning and 106.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 21:45:38,259 INFO L158 Benchmark]: BuchiAutomizer took 42618.59ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 106.1MB in the beginning and 162.5MB in the end (delta: -56.5MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-11-23 21:45:38,259 INFO L158 Benchmark]: Witness Printer took 5.25ms. Allocated memory is still 226.5MB. Free memory was 162.5MB in the beginning and 161.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:45:38,262 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.45ms. Allocated memory is still 157.3MB. Free memory was 127.0MB in the beginning and 118.0MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.38ms. Allocated memory is still 157.3MB. Free memory was 118.0MB in the beginning and 116.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.38ms. Allocated memory is still 157.3MB. Free memory was 116.6MB in the beginning and 115.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 286.99ms. Allocated memory is still 157.3MB. Free memory was 115.3MB in the beginning and 106.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 42618.59ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 106.1MB in the beginning and 162.5MB in the end (delta: -56.5MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Witness Printer took 5.25ms. Allocated memory is still 226.5MB. Free memory was 162.5MB in the beginning and 161.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 14 terminating modules (6 trivial, 6 deterministic, 2 nondeterministic). One deterministic module has 2-nested ranking function null, null and consists of 7 locations. One deterministic module has 2-nested ranking function null, null and consists of 4 locations. One deterministic module has affine ranking function ((-2 * a) + 1) and consists of 4 locations. One deterministic module has affine ranking function (4294967295 + (-2 * a)) and consists of 7 locations. One deterministic module has 2-nested ranking function null, null and consists of 4 locations. One deterministic module has affine ranking function (2147483647 + (-1 * a)) and consists of 7 locations. One nondeterministic module has affine ranking function ((x + 2147483648) + (-1 * a)) and consists of 27 locations. One nondeterministic module has 2-nested ranking function null, null and consists of 4 locations. 6 modules have a trivial ranking function, the largest among these consists of 58 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 42.5s and 10 iterations. TraceHistogramMax:16. Analysis of lassos took 32.5s. Construction of modules took 1.2s. Büchi inclusion checks took 8.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 10. Automata minimization 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 35 StatesRemovedByMinimization, 11 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 [6, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 311 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 303 mSDsluCounter, 159 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 72 mSDsCounter, 231 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1265 IncrementalHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 231 mSolverCounterUnsat, 87 mSDtfsCounter, 1265 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT4 SILN1 SILU0 SILI0 SILT1 lasso2 LassoPreprocessingBenchmarks: Lassos: inital59 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf95 smp100 dnf867 smp54 tf101 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 2827ms VariablesStem: 4 VariablesLoop: 7 DisjunctsStem: 1 DisjunctsLoop: 7 SupportingInvariants: 14 MotzkinApplications: 126 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-23 21:45:38,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:38,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:38,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 21:45:38,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7df2ef8-27ea-477f-af1f-2e6913254f8e/bin/uautomizer-verify-zZY32mL2XJ/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