./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.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_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/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_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/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_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/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 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:41:42,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:41:42,459 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-23 22:41:42,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:41:42,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:41:42,507 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:41:42,508 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:41:42,508 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:41:42,509 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:41:42,514 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:41:42,516 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:41:42,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:41:42,517 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:41:42,519 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-23 22:41:42,520 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-23 22:41:42,520 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-23 22:41:42,521 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-23 22:41:42,522 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-23 22:41:42,522 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-23 22:41:42,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:41:42,523 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-23 22:41:42,524 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:41:42,524 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:41:42,524 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-23 22:41:42,525 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-23 22:41:42,525 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-23 22:41:42,526 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:41:42,526 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:41:42,527 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-23 22:41:42,527 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:41:42,529 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:41:42,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:41:42,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:41:42,530 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:41:42,531 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-23 22:41:42,531 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_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 [2023-11-23 22:41:42,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:41:42,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:41:42,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:41:42,916 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:41:42,917 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:41:42,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2023-11-23 22:41:46,306 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:41:46,547 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:41:46,547 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2023-11-23 22:41:46,557 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/data/6c015d51d/290b9578988a48b19a7c90e773b71a9e/FLAGbc1c52e92 [2023-11-23 22:41:46,580 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/data/6c015d51d/290b9578988a48b19a7c90e773b71a9e [2023-11-23 22:41:46,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:41:46,591 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:41:46,595 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:41:46,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:41:46,604 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:41:46,605 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:41:46" (1/1) ... [2023-11-23 22:41:46,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b20e32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:46, skipping insertion in model container [2023-11-23 22:41:46,607 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:41:46" (1/1) ... [2023-11-23 22:41:46,637 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:41:46,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:41:46,865 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:41:46,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:41:46,905 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:41:46,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:46 WrapperNode [2023-11-23 22:41:46,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:41:46,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:41:46,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:41:46,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:41:46,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:46" (1/1) ... [2023-11-23 22:41:46,922 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:46" (1/1) ... [2023-11-23 22:41:46,956 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2023-11-23 22:41:46,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:41:46,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:41:46,958 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:41:46,958 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:41:46,971 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:46" (1/1) ... [2023-11-23 22:41:46,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:46" (1/1) ... [2023-11-23 22:41:46,985 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:46" (1/1) ... [2023-11-23 22:41:46,992 INFO L189 HeapSplitter]: Split 0 memory accesses to 0 slices as follows [] [2023-11-23 22:41:46,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:46" (1/1) ... [2023-11-23 22:41:46,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:46" (1/1) ... [2023-11-23 22:41:47,002 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:46" (1/1) ... [2023-11-23 22:41:47,006 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:46" (1/1) ... [2023-11-23 22:41:47,007 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:46" (1/1) ... [2023-11-23 22:41:47,021 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:46" (1/1) ... [2023-11-23 22:41:47,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:41:47,023 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:41:47,024 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:41:47,024 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:41:47,025 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:46" (1/1) ... [2023-11-23 22:41:47,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:47,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:47,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:47,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-23 22:41:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:41:47,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:41:47,226 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:41:47,228 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:41:47,347 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:41:47,357 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:41:47,357 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 22:41:47,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:41:47 BoogieIcfgContainer [2023-11-23 22:41:47,360 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:41:47,361 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-23 22:41:47,362 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-23 22:41:47,366 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-23 22:41:47,368 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:41:47,368 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 10:41:46" (1/3) ... [2023-11-23 22:41:47,369 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@734968b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:41:47, skipping insertion in model container [2023-11-23 22:41:47,370 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:41:47,370 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:46" (2/3) ... [2023-11-23 22:41:47,371 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@734968b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:41:47, skipping insertion in model container [2023-11-23 22:41:47,371 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:41:47,371 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:41:47" (3/3) ... [2023-11-23 22:41:47,373 INFO L332 chiAutomizerObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2023-11-23 22:41:47,445 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-23 22:41:47,445 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-23 22:41:47,445 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-23 22:41:47,446 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-23 22:41:47,446 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-23 22:41:47,446 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-23 22:41:47,446 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-23 22:41:47,447 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-23 22:41:47,452 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 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 22:41:47,474 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-23 22:41:47,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:41:47,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:41:47,481 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 22:41:47,482 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 22:41:47,482 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-23 22:41:47,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 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 22:41:47,485 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-23 22:41:47,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:41:47,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:41:47,486 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 22:41:47,486 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 22:41:47,496 INFO L748 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L25-2true [2023-11-23 22:41:47,496 INFO L750 eck$LassoCheckResult]: Loop: 3#L25-2true assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 7#L25true assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 9#L33true assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 11#L33-2true havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 3#L25-2true [2023-11-23 22:41:47,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:47,504 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-23 22:41:47,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:47,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740516987] [2023-11-23 22:41:47,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:47,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:47,629 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:47,664 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:47,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:47,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1274161, now seen corresponding path program 1 times [2023-11-23 22:41:47,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:47,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275336623] [2023-11-23 22:41:47,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:47,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:47,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:47,722 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:47,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:47,724 INFO L85 PathProgramCache]: Analyzing trace with hash 889701363, now seen corresponding path program 1 times [2023-11-23 22:41:47,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:47,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744165175] [2023-11-23 22:41:47,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:47,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:47,749 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:47,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:47,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:47,984 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:47,985 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:47,985 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:47,985 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:47,986 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:41:47,986 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:47,986 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:47,986 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:47,986 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2023-11-23 22:41:47,987 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:47,987 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:48,008 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 22:41:48,030 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 22:41:48,035 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 22:41:48,048 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 22:41:48,051 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 22:41:48,117 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:48,118 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:41:48,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:48,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:48,124 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:48,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-23 22:41:48,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:48,129 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:48,152 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:48,152 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:48,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:48,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:48,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:48,168 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:48,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-23 22:41:48,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:48,177 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:48,197 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:48,197 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:48,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:48,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:48,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:48,217 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:48,229 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:48,230 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:48,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-23 22:41:48,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-23 22:41:48,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:48,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:48,258 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:48,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-23 22:41:48,260 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:41:48,260 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:48,312 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:41:48,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-23 22:41:48,317 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:48,317 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:48,317 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:48,317 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:48,317 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:41:48,317 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:48,318 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:48,318 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:48,318 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2023-11-23 22:41:48,318 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:48,318 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:48,323 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 22:41:48,332 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 22:41:48,348 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 22:41:48,361 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 22:41:48,378 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 22:41:48,443 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:48,448 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:41:48,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:48,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:48,453 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:48,465 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 22:41:48,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-23 22:41:48,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:48,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:48,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:48,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:48,490 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:41:48,490 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:41:48,510 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:48,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:48,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:48,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:48,532 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:48,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-23 22:41:48,535 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 22:41:48,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:48,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:48,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:48,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:48,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:48,556 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:48,556 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:48,578 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:41:48,582 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:41:48,582 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-23 22:41:48,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:48,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:48,609 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:48,611 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:41:48,611 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:41:48,611 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:41:48,611 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-23 22:41:48,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-23 22:41:48,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:48,641 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:41:48,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:48,681 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:48,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:48,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:41:48,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:48,808 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 22:41:48,839 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 22:41:48,841 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 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) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:48,906 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 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). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 48 transitions. Complement of second has 8 states. [2023-11-23 22:41:48,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-23 22:41:48,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:48,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2023-11-23 22:41:48,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-23 22:41:48,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:48,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-23 22:41:48,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:48,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-23 22:41:48,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:48,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 48 transitions. [2023-11-23 22:41:48,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-23 22:41:48,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 18 states and 25 transitions. [2023-11-23 22:41:48,927 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-23 22:41:48,927 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-23 22:41:48,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2023-11-23 22:41:48,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:41:48,928 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 25 transitions. [2023-11-23 22:41:48,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2023-11-23 22:41:48,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2023-11-23 22:41:48,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 14 states have internal predecessors, (21), 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 22:41:48,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2023-11-23 22:41:48,953 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2023-11-23 22:41:48,953 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2023-11-23 22:41:48,954 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-23 22:41:48,954 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2023-11-23 22:41:48,955 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-23 22:41:48,955 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:41:48,955 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:41:48,955 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-23 22:41:48,956 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 22:41:48,956 INFO L748 eck$LassoCheckResult]: Stem: 100#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 101#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 105#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 93#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 98#L26 [2023-11-23 22:41:48,956 INFO L750 eck$LassoCheckResult]: Loop: 98#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 96#L26-2 havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 97#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 106#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 98#L26 [2023-11-23 22:41:48,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:48,957 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-23 22:41:48,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:48,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933557603] [2023-11-23 22:41:48,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:48,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:48,963 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:48,967 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:48,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:48,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1450504, now seen corresponding path program 1 times [2023-11-23 22:41:48,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:48,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928905412] [2023-11-23 22:41:48,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:48,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:48,975 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:48,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:48,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:48,981 INFO L85 PathProgramCache]: Analyzing trace with hash 295929837, now seen corresponding path program 1 times [2023-11-23 22:41:48,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:48,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041797050] [2023-11-23 22:41:48,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:48,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:48,990 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:48,997 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:49,031 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:49,031 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:49,031 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:49,031 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:49,031 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:41:49,032 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:49,032 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:49,032 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:49,032 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2023-11-23 22:41:49,032 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:49,032 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:49,034 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 22:41:49,038 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 22:41:49,040 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 22:41:49,051 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 22:41:49,055 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 22:41:49,109 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:49,109 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:41:49,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:49,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:49,111 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:49,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:49,123 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:49,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-23 22:41:49,148 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:49,148 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:49,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:49,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:49,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:49,178 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:49,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-23 22:41:49,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:49,192 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:49,214 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:49,214 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:49,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:49,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:49,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:49,240 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:49,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:49,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:49,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-23 22:41:49,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:49,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:49,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:49,306 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:49,313 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:41:49,313 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:49,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-23 22:41:49,465 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:41:49,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:49,475 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:49,475 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:49,475 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:49,475 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:49,475 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:41:49,475 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:49,475 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:49,475 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:49,476 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2023-11-23 22:41:49,476 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:49,476 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:49,477 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 22:41:49,484 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 22:41:49,486 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 22:41:49,498 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 22:41:49,503 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 22:41:49,559 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:49,559 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:41:49,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:49,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:49,561 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:49,564 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 22:41:49,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-23 22:41:49,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:49,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:49,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:49,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:49,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:41:49,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:41:49,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:49,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:49,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:49,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:49,624 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:49,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-23 22:41:49,637 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 22:41:49,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:49,651 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:49,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:49,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:49,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:49,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:49,653 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:49,662 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:49,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:49,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:49,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:49,680 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:49,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-23 22:41:49,685 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 22:41:49,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:49,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:49,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:49,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:49,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:49,698 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:49,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:49,710 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:41:49,714 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:41:49,714 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-23 22:41:49,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:49,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:49,717 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:49,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-23 22:41:49,720 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:41:49,720 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:41:49,720 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:41:49,720 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-23 22:41:49,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:49,736 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:41:49,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:49,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:49,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:49,785 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:41:49,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:49,852 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 22:41:49,854 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 22:41:49,854 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 8 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 22:41:49,907 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 8. 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 37 states and 55 transitions. Complement of second has 7 states. [2023-11-23 22:41:49,908 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 22:41:49,909 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 22:41:49,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-11-23 22:41:49,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-23 22:41:49,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:49,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 8 letters. Loop has 4 letters. [2023-11-23 22:41:49,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:49,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 8 letters. [2023-11-23 22:41:49,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:49,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 55 transitions. [2023-11-23 22:41:49,922 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2023-11-23 22:41:49,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 32 states and 46 transitions. [2023-11-23 22:41:49,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2023-11-23 22:41:49,927 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-11-23 22:41:49,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 46 transitions. [2023-11-23 22:41:49,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:41:49,927 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 46 transitions. [2023-11-23 22:41:49,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 46 transitions. [2023-11-23 22:41:49,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2023-11-23 22:41:49,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:49,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 39 transitions. [2023-11-23 22:41:49,940 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 39 transitions. [2023-11-23 22:41:49,941 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 39 transitions. [2023-11-23 22:41:49,941 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-23 22:41:49,941 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 39 transitions. [2023-11-23 22:41:49,946 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2023-11-23 22:41:49,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:41:49,947 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:41:49,948 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-23 22:41:49,948 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 22:41:49,949 INFO L748 eck$LassoCheckResult]: Stem: 204#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 205#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 213#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 215#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 216#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 209#L26-2 [2023-11-23 22:41:49,949 INFO L750 eck$LassoCheckResult]: Loop: 209#L26-2 havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 218#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 199#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 201#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 209#L26-2 [2023-11-23 22:41:49,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:49,970 INFO L85 PathProgramCache]: Analyzing trace with hash 28699757, now seen corresponding path program 1 times [2023-11-23 22:41:49,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:49,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948600042] [2023-11-23 22:41:49,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:49,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:49,976 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:49,983 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:49,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:49,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1560156, now seen corresponding path program 1 times [2023-11-23 22:41:49,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:49,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857739180] [2023-11-23 22:41:49,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:49,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:49,988 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:49,991 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:50,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:50,006 INFO L85 PathProgramCache]: Analyzing trace with hash 585737416, now seen corresponding path program 1 times [2023-11-23 22:41:50,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:50,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094029839] [2023-11-23 22:41:50,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:50,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:50,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:50,026 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:50,046 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:50,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:50,088 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:50,088 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:50,088 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:50,089 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:50,089 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:41:50,089 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:50,089 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:50,089 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:50,089 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2023-11-23 22:41:50,089 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:50,089 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:50,092 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 22:41:50,096 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 22:41:50,100 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 22:41:50,109 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 22:41:50,112 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 22:41:50,164 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:50,165 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:41:50,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:50,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:50,169 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:50,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-23 22:41:50,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:50,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:50,204 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:50,204 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:50,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:50,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:50,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:50,221 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:50,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-23 22:41:50,223 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:50,223 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:50,250 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:50,250 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:50,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-23 22:41:50,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:50,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:50,266 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:50,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:50,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:50,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-23 22:41:50,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-11-23 22:41:50,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:50,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:50,296 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:50,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-23 22:41:50,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:41:50,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:50,339 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:41:50,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:50,343 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:50,343 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:50,343 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:50,344 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:50,344 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:41:50,344 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:50,344 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:50,344 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:50,344 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2023-11-23 22:41:50,344 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:50,344 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:50,346 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 22:41:50,355 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 22:41:50,362 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 22:41:50,372 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 22:41:50,375 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 22:41:50,447 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:50,447 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:41:50,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:50,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:50,449 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:50,452 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 22:41:50,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-23 22:41:50,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:50,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:50,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:50,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:50,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:50,470 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:50,470 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:50,479 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:50,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:50,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:50,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:50,509 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:50,513 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 22:41:50,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-23 22:41:50,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:50,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:50,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:50,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:50,531 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:41:50,531 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:41:50,544 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:50,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:50,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:50,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:50,568 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:50,573 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 22:41:50,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:50,588 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:50,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-23 22:41:50,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:50,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:50,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:50,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:50,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:50,604 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:41:50,609 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:41:50,609 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-23 22:41:50,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:50,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:50,613 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:50,617 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:41:50,617 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:41:50,617 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:41:50,617 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-23 22:41:50,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-23 22:41:50,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:50,647 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:41:50,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:50,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:50,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:50,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:50,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:41:50,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:50,739 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 22:41:50,740 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-23 22:41:50,741 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 39 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:50,775 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 39 transitions. cyclomatic complexity: 16. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 90 transitions. Complement of second has 7 states. [2023-11-23 22:41:50,776 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 22:41:50,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:50,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-11-23 22:41:50,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 4 letters. [2023-11-23 22:41:50,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:50,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-23 22:41:50,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:50,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 8 letters. [2023-11-23 22:41:50,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:50,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 90 transitions. [2023-11-23 22:41:50,782 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2023-11-23 22:41:50,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 53 states and 76 transitions. [2023-11-23 22:41:50,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2023-11-23 22:41:50,784 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2023-11-23 22:41:50,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 76 transitions. [2023-11-23 22:41:50,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:41:50,785 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 76 transitions. [2023-11-23 22:41:50,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 76 transitions. [2023-11-23 22:41:50,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2023-11-23 22:41:50,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.4680851063829787) internal successors, (69), 46 states have internal predecessors, (69), 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 22:41:50,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 69 transitions. [2023-11-23 22:41:50,792 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 69 transitions. [2023-11-23 22:41:50,792 INFO L428 stractBuchiCegarLoop]: Abstraction has 47 states and 69 transitions. [2023-11-23 22:41:50,793 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-23 22:41:50,793 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 69 transitions. [2023-11-23 22:41:50,794 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2023-11-23 22:41:50,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:41:50,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:41:50,795 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:50,796 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 22:41:50,796 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~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 351#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 337#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 338#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 358#L26-2 havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 357#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 353#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 354#L33 [2023-11-23 22:41:50,796 INFO L750 eck$LassoCheckResult]: Loop: 354#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 376#L33-2 havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 375#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 373#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 354#L33 [2023-11-23 22:41:50,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:50,797 INFO L85 PathProgramCache]: Analyzing trace with hash 295929846, now seen corresponding path program 1 times [2023-11-23 22:41:50,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:50,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609834607] [2023-11-23 22:41:50,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:50,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:50,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:50,815 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:50,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:50,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1727281, now seen corresponding path program 2 times [2023-11-23 22:41:50,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:50,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018474596] [2023-11-23 22:41:50,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:50,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:50,823 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:50,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:50,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:50,834 INFO L85 PathProgramCache]: Analyzing trace with hash 69132454, now seen corresponding path program 1 times [2023-11-23 22:41:50,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:50,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851745993] [2023-11-23 22:41:50,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:50,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:50,860 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:50,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:50,906 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:50,906 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:50,906 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:50,906 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:50,906 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:41:50,906 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:50,907 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:50,907 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:50,907 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2023-11-23 22:41:50,907 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:50,907 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:50,909 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 22:41:50,911 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 22:41:50,915 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 22:41:50,918 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:41:50,929 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 22:41:50,976 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:50,977 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:41:50,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:50,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:50,978 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:50,985 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:50,985 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:50,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-23 22:41:51,010 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:51,010 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:51,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:51,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:51,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:51,036 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:51,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-23 22:41:51,041 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:51,041 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:51,073 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:51,073 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:51,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:51,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:51,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:51,100 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:51,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:51,103 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:51,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-23 22:41:51,129 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:51,129 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4#1=0} Honda state: {ULTIMATE.start_main_#t~nondet4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:51,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-11-23 22:41:51,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:51,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:51,150 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:51,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-23 22:41:51,152 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:51,152 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:51,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:51,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:51,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:51,194 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:51,201 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:41:51,201 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:51,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-23 22:41:51,314 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:41:51,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-11-23 22:41:51,318 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:51,318 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:51,318 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:51,318 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:51,318 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:41:51,318 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:51,318 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:51,318 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:51,318 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2023-11-23 22:41:51,318 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:51,319 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:51,320 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 22:41:51,328 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 22:41:51,331 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 22:41:51,335 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 22:41:51,346 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 22:41:51,421 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:51,421 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:41:51,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:51,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:51,425 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:51,430 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 22:41:51,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-23 22:41:51,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:51,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:51,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:51,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:51,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:51,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:51,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:51,457 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:51,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:51,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:51,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:51,484 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:51,489 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 22:41:51,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-23 22:41:51,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:51,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:51,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:51,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:51,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:51,504 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:51,504 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:51,524 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:51,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:51,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:51,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:51,549 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:51,553 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 22:41:51,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-23 22:41:51,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:51,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:51,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:51,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:51,569 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:41:51,570 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:41:51,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:51,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:51,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:51,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:51,614 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:51,617 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 22:41:51,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-23 22:41:51,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:51,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:51,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:51,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:51,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:51,633 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:51,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:51,648 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:41:51,662 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:41:51,663 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-23 22:41:51,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:51,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:51,665 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:51,669 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:41:51,669 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:41:51,669 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:41:51,669 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-23 22:41:51,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-23 22:41:51,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-11-23 22:41:51,684 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:41:51,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:51,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:51,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:51,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:41:51,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:51,774 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 22:41:51,775 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 22:41:51,775 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 69 transitions. cyclomatic complexity: 29 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 22:41:51,806 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 69 transitions. cyclomatic complexity: 29. 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 110 states and 163 transitions. Complement of second has 7 states. [2023-11-23 22:41:51,807 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 22:41:51,808 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 22:41:51,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2023-11-23 22:41:51,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 4 letters. [2023-11-23 22:41:51,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:51,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-23 22:41:51,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:51,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 8 letters. [2023-11-23 22:41:51,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:51,811 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 110 states and 163 transitions. [2023-11-23 22:41:51,814 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2023-11-23 22:41:51,816 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 110 states to 89 states and 132 transitions. [2023-11-23 22:41:51,816 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2023-11-23 22:41:51,816 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2023-11-23 22:41:51,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 132 transitions. [2023-11-23 22:41:51,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:41:51,817 INFO L218 hiAutomatonCegarLoop]: Abstraction has 89 states and 132 transitions. [2023-11-23 22:41:51,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 132 transitions. [2023-11-23 22:41:51,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2023-11-23 22:41:51,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 79 states have (on average 1.481012658227848) internal successors, (117), 78 states have internal predecessors, (117), 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 22:41:51,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 117 transitions. [2023-11-23 22:41:51,825 INFO L240 hiAutomatonCegarLoop]: Abstraction has 79 states and 117 transitions. [2023-11-23 22:41:51,825 INFO L428 stractBuchiCegarLoop]: Abstraction has 79 states and 117 transitions. [2023-11-23 22:41:51,826 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-23 22:41:51,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 117 transitions. [2023-11-23 22:41:51,827 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2023-11-23 22:41:51,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:41:51,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:41:51,829 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:51,829 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 22:41:51,829 INFO L748 eck$LassoCheckResult]: Stem: 556#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 557#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 566#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 583#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 603#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 601#L33-2 havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 600#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 598#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 599#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 575#L26-2 havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 574#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 571#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 567#L33 [2023-11-23 22:41:51,829 INFO L750 eck$LassoCheckResult]: Loop: 567#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 568#L33-2 havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 625#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 622#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 567#L33 [2023-11-23 22:41:51,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:51,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1933001244, now seen corresponding path program 1 times [2023-11-23 22:41:51,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:51,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647024966] [2023-11-23 22:41:51,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:51,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:51,839 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:51,846 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:51,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:51,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1727281, now seen corresponding path program 3 times [2023-11-23 22:41:51,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:51,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305848607] [2023-11-23 22:41:51,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:51,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:51,853 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:51,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:51,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:51,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1555787668, now seen corresponding path program 1 times [2023-11-23 22:41:51,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:51,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253719119] [2023-11-23 22:41:51,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:51,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:51,867 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:51,876 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:51,906 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:51,906 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:51,906 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:51,906 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:51,907 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:41:51,907 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:51,907 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:51,907 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:51,907 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2023-11-23 22:41:51,907 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:51,907 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:51,909 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 22:41:51,919 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 22:41:51,921 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 22:41:51,925 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 22:41:51,928 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 22:41:51,978 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:51,978 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:41:51,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:51,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:51,996 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:52,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:52,001 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:52,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-23 22:41:52,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:52,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:52,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:52,065 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:52,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:41:52,068 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:52,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-23 22:41:52,168 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:41:52,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2023-11-23 22:41:52,172 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:52,172 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:52,172 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:52,172 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:52,172 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:41:52,172 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:52,172 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:52,172 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:52,173 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2023-11-23 22:41:52,173 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:52,173 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:52,174 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 22:41:52,190 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 22:41:52,194 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 22:41:52,197 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 22:41:52,199 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 22:41:52,247 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:52,247 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:41:52,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:52,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:52,248 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:52,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-23 22:41:52,271 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 22:41:52,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:52,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:52,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:52,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:52,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:52,287 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:52,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:52,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:52,318 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:41:52,323 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:41:52,323 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-23 22:41:52,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:52,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:52,324 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:52,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:52,331 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:41:52,331 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:41:52,331 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:41:52,331 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-23 22:41:52,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-23 22:41:52,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:52,357 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:41:52,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:52,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:52,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:52,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:41:52,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:52,447 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 22:41:52,447 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 22:41:52,448 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 22:41:52,489 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 110 states and 163 transitions. Complement of second has 7 states. [2023-11-23 22:41:52,489 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 22:41:52,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 22:41:52,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2023-11-23 22:41:52,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-23 22:41:52,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:52,491 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:41:52,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:52,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:52,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:52,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:41:52,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:52,577 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 22:41:52,578 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 22:41:52,578 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 22:41:52,619 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 108 states and 158 transitions. Complement of second has 7 states. [2023-11-23 22:41:52,620 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 22:41:52,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 22:41:52,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-11-23 22:41:52,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-23 22:41:52,621 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:52,621 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:41:52,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:52,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:52,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:52,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:41:52,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:52,716 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 22:41:52,717 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 22:41:52,717 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 22:41:52,762 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 124 states and 189 transitions. Complement of second has 8 states. [2023-11-23 22:41:52,763 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 22:41:52,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 22:41:52,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-11-23 22:41:52,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-23 22:41:52,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:52,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 4 letters. [2023-11-23 22:41:52,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:52,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 8 letters. [2023-11-23 22:41:52,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:52,773 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 124 states and 189 transitions. [2023-11-23 22:41:52,782 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2023-11-23 22:41:52,789 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 124 states to 95 states and 142 transitions. [2023-11-23 22:41:52,790 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2023-11-23 22:41:52,790 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2023-11-23 22:41:52,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 142 transitions. [2023-11-23 22:41:52,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:41:52,791 INFO L218 hiAutomatonCegarLoop]: Abstraction has 95 states and 142 transitions. [2023-11-23 22:41:52,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 142 transitions. [2023-11-23 22:41:52,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 55. [2023-11-23 22:41:52,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.509090909090909) internal successors, (83), 54 states have internal predecessors, (83), 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 22:41:52,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 83 transitions. [2023-11-23 22:41:52,808 INFO L240 hiAutomatonCegarLoop]: Abstraction has 55 states and 83 transitions. [2023-11-23 22:41:52,809 INFO L428 stractBuchiCegarLoop]: Abstraction has 55 states and 83 transitions. [2023-11-23 22:41:52,809 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-23 22:41:52,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 83 transitions. [2023-11-23 22:41:52,810 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2023-11-23 22:41:52,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:41:52,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:41:52,812 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:52,814 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:52,814 INFO L748 eck$LassoCheckResult]: Stem: 1166#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1167#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1174#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 1163#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1164#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 1181#L26-2 havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1179#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 1175#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1176#L33 [2023-11-23 22:41:52,815 INFO L750 eck$LassoCheckResult]: Loop: 1176#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 1206#L33-2 havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 1205#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 1202#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1198#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 1199#L26-2 havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1204#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 1201#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1176#L33 [2023-11-23 22:41:52,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:52,816 INFO L85 PathProgramCache]: Analyzing trace with hash 295929846, now seen corresponding path program 2 times [2023-11-23 22:41:52,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:52,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792184232] [2023-11-23 22:41:52,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:52,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:52,827 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:52,837 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:52,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:52,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1739624888, now seen corresponding path program 1 times [2023-11-23 22:41:52,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:52,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046558704] [2023-11-23 22:41:52,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:52,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:52,851 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:52,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:52,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:52,866 INFO L85 PathProgramCache]: Analyzing trace with hash 576410797, now seen corresponding path program 2 times [2023-11-23 22:41:52,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:52,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223245095] [2023-11-23 22:41:52,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:52,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:52,890 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:52,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:52,978 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:52,978 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:52,979 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:52,979 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:52,979 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:41:52,979 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:52,979 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:52,979 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:52,980 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2023-11-23 22:41:52,980 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:52,980 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:52,983 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:41:52,986 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:41:52,990 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 22:41:52,994 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 22:41:52,997 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 22:41:52,999 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 22:41:53,066 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:53,067 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:41:53,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:53,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:53,071 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:53,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:53,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:53,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-23 22:41:53,097 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:53,097 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:53,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:53,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:53,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:53,112 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:53,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-23 22:41:53,114 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:53,114 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:53,135 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:53,135 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:53,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:53,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:53,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:53,161 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:53,169 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:53,169 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:53,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-23 22:41:53,208 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:53,208 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:53,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:53,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:53,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:53,230 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:53,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-23 22:41:53,231 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:53,231 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:53,243 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:53,243 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4#1=0} Honda state: {ULTIMATE.start_main_#t~nondet4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:53,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:53,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:53,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:53,258 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:53,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-23 22:41:53,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:53,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:53,271 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:53,271 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:53,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:53,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:53,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:53,287 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:53,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-23 22:41:53,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:53,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:53,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2023-11-23 22:41:53,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:53,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:53,331 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:53,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-23 22:41:53,333 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:41:53,334 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:53,425 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:41:53,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2023-11-23 22:41:53,428 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:53,428 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:53,429 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:53,429 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:53,429 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:41:53,429 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:53,429 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:53,429 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:53,429 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2023-11-23 22:41:53,429 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:53,429 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:53,430 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 22:41:53,436 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 22:41:53,445 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 22:41:53,449 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 22:41:53,451 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 22:41:53,455 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 22:41:53,518 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:53,518 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:41:53,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:53,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:53,521 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:53,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-23 22:41:53,526 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 22:41:53,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:53,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:53,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:53,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:53,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:53,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:53,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:53,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:53,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:53,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:53,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:53,580 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:53,585 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 22:41:53,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:53,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:53,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:53,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:53,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-23 22:41:53,601 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:41:53,601 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:41:53,616 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:53,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:53,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:53,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:53,635 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:53,641 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 22:41:53,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:53,653 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:53,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:53,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:53,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:53,654 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:53,654 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:53,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-23 22:41:53,664 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:53,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:53,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:53,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:53,685 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:53,687 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 22:41:53,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:53,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:53,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:53,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:53,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:53,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:53,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:53,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-23 22:41:53,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:53,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:53,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:53,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:53,736 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:53,739 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 22:41:53,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:53,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:53,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:53,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:53,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-23 22:41:53,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:41:53,755 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:41:53,772 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:53,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2023-11-23 22:41:53,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:53,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:53,788 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:53,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-23 22:41:53,792 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 22:41:53,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:53,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:53,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:53,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:53,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:53,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:53,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:53,816 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:41:53,819 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:41:53,820 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-23 22:41:53,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:53,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:53,821 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:53,823 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:41:53,823 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:41:53,824 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:41:53,824 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-23 22:41:53,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-23 22:41:53,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2023-11-23 22:41:53,844 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:41:53,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:53,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:53,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:53,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:41:53,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:53,949 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 22:41:53,950 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-23 22:41:53,950 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 55 states and 83 transitions. cyclomatic complexity: 35 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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 22:41:54,048 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 55 states and 83 transitions. cyclomatic complexity: 35. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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 241 states and 359 transitions. Complement of second has 13 states. [2023-11-23 22:41:54,049 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 22:41:54,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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 22:41:54,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2023-11-23 22:41:54,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 8 letters. [2023-11-23 22:41:54,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:54,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 16 letters. Loop has 8 letters. [2023-11-23 22:41:54,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:54,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 16 letters. [2023-11-23 22:41:54,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:54,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 241 states and 359 transitions. [2023-11-23 22:41:54,055 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2023-11-23 22:41:54,058 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 241 states to 203 states and 306 transitions. [2023-11-23 22:41:54,058 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2023-11-23 22:41:54,059 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2023-11-23 22:41:54,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 203 states and 306 transitions. [2023-11-23 22:41:54,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:41:54,059 INFO L218 hiAutomatonCegarLoop]: Abstraction has 203 states and 306 transitions. [2023-11-23 22:41:54,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states and 306 transitions. [2023-11-23 22:41:54,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 184. [2023-11-23 22:41:54,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 184 states have (on average 1.5108695652173914) internal successors, (278), 183 states have internal predecessors, (278), 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 22:41:54,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 278 transitions. [2023-11-23 22:41:54,075 INFO L240 hiAutomatonCegarLoop]: Abstraction has 184 states and 278 transitions. [2023-11-23 22:41:54,076 INFO L428 stractBuchiCegarLoop]: Abstraction has 184 states and 278 transitions. [2023-11-23 22:41:54,076 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-23 22:41:54,076 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 278 transitions. [2023-11-23 22:41:54,078 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2023-11-23 22:41:54,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:41:54,078 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:41:54,079 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:54,079 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 22:41:54,079 INFO L748 eck$LassoCheckResult]: Stem: 1546#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1547#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1555#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 1543#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1544#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 1569#L26-2 havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1632#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 1628#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1626#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 1627#L33-2 havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 1642#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 1637#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1639#L26 [2023-11-23 22:41:54,079 INFO L750 eck$LassoCheckResult]: Loop: 1639#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 1652#L26-2 havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1651#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 1650#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1639#L26 [2023-11-23 22:41:54,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:54,080 INFO L85 PathProgramCache]: Analyzing trace with hash 69192027, now seen corresponding path program 2 times [2023-11-23 22:41:54,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:54,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475946268] [2023-11-23 22:41:54,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:54,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:54,087 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:54,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:54,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:54,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1450504, now seen corresponding path program 2 times [2023-11-23 22:41:54,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:54,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295685701] [2023-11-23 22:41:54,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:54,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:54,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:54,101 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:54,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:54,102 INFO L85 PathProgramCache]: Analyzing trace with hash -232935838, now seen corresponding path program 3 times [2023-11-23 22:41:54,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:54,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298196226] [2023-11-23 22:41:54,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:54,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:54,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:54,117 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:54,144 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:54,145 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:54,145 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:54,145 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:54,145 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:41:54,145 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:54,145 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:54,145 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:54,146 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2023-11-23 22:41:54,146 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:54,146 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:54,147 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 22:41:54,156 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 22:41:54,159 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 22:41:54,162 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 22:41:54,165 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 22:41:54,204 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:54,205 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:41:54,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:54,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:54,206 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:54,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:54,215 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:54,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-23 22:41:54,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:54,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:54,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:54,267 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:54,277 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:41:54,277 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:54,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-23 22:41:54,414 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:41:54,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2023-11-23 22:41:54,417 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:54,418 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:54,418 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:54,418 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:54,418 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:41:54,418 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:54,418 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:54,418 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:54,418 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2023-11-23 22:41:54,418 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:54,418 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:54,419 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 22:41:54,429 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 22:41:54,432 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 22:41:54,435 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 22:41:54,437 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 22:41:54,492 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:54,492 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:41:54,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:54,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:54,494 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:54,501 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 22:41:54,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-11-23 22:41:54,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:54,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:54,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:54,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:54,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:54,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:54,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:54,532 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:41:54,546 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:41:54,546 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-23 22:41:54,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:54,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:54,548 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:54,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2023-11-23 22:41:54,549 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:41:54,549 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:41:54,549 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:41:54,550 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-23 22:41:54,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:54,566 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:41:54,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:54,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:54,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:54,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:54,615 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:41:54,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:54,644 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 22:41:54,644 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 22:41:54,645 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 22:41:54,672 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 326 states and 474 transitions. Complement of second has 7 states. [2023-11-23 22:41:54,673 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 22:41:54,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 22:41:54,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-11-23 22:41:54,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-23 22:41:54,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:54,675 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:41:54,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:54,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:54,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:54,710 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:41:54,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:54,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:54,785 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 22:41:54,785 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 22:41:54,786 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 22:41:54,825 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 346 states and 499 transitions. Complement of second has 9 states. [2023-11-23 22:41:54,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-23 22:41:54,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:54,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 22:41:54,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2023-11-23 22:41:54,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-23 22:41:54,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:54,848 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:41:54,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:54,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:54,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:54,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:54,890 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:41:54,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:54,916 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 22:41:54,916 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 22:41:54,917 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 22:41:54,951 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 424 states and 646 transitions. Complement of second has 9 states. [2023-11-23 22:41:54,952 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 22:41:54,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 22:41:54,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2023-11-23 22:41:54,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-23 22:41:54,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:54,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 16 letters. Loop has 4 letters. [2023-11-23 22:41:54,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:54,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 12 letters. Loop has 8 letters. [2023-11-23 22:41:54,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:54,956 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 424 states and 646 transitions. [2023-11-23 22:41:54,961 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 36 [2023-11-23 22:41:54,966 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 424 states to 284 states and 418 transitions. [2023-11-23 22:41:54,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2023-11-23 22:41:54,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2023-11-23 22:41:54,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 284 states and 418 transitions. [2023-11-23 22:41:54,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:41:54,968 INFO L218 hiAutomatonCegarLoop]: Abstraction has 284 states and 418 transitions. [2023-11-23 22:41:54,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states and 418 transitions. [2023-11-23 22:41:54,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 226. [2023-11-23 22:41:54,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 226 states have (on average 1.5176991150442478) internal successors, (343), 225 states have internal predecessors, (343), 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 22:41:54,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 343 transitions. [2023-11-23 22:41:55,000 INFO L240 hiAutomatonCegarLoop]: Abstraction has 226 states and 343 transitions. [2023-11-23 22:41:55,000 INFO L428 stractBuchiCegarLoop]: Abstraction has 226 states and 343 transitions. [2023-11-23 22:41:55,000 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-23 22:41:55,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 226 states and 343 transitions. [2023-11-23 22:41:55,002 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 30 [2023-11-23 22:41:55,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:41:55,003 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:41:55,004 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:55,004 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:55,004 INFO L748 eck$LassoCheckResult]: Stem: 3017#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3018#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3027#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 3013#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 3014#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 3116#L26-2 havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 3115#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 3111#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 3110#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 3081#L33-2 havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 3080#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 3075#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 3077#L26 [2023-11-23 22:41:55,004 INFO L750 eck$LassoCheckResult]: Loop: 3077#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 3098#L26-2 havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 3097#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 3095#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 3076#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 3081#L33-2 havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 3080#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 3075#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 3077#L26 [2023-11-23 22:41:55,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:55,006 INFO L85 PathProgramCache]: Analyzing trace with hash 69192027, now seen corresponding path program 4 times [2023-11-23 22:41:55,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:55,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706267471] [2023-11-23 22:41:55,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:55,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:55,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:55,031 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:55,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:55,034 INFO L85 PathProgramCache]: Analyzing trace with hash -449776328, now seen corresponding path program 2 times [2023-11-23 22:41:55,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:55,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861469997] [2023-11-23 22:41:55,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:55,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:55,041 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:55,054 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:55,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:55,056 INFO L85 PathProgramCache]: Analyzing trace with hash 898024594, now seen corresponding path program 2 times [2023-11-23 22:41:55,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:55,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144458400] [2023-11-23 22:41:55,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:55,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:55,076 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:55,083 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:55,146 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:55,146 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:55,146 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:55,147 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:55,147 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:41:55,147 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:55,147 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:55,147 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:55,147 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2023-11-23 22:41:55,147 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:55,147 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:55,148 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 22:41:55,152 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 22:41:55,154 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 22:41:55,164 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 22:41:55,167 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 22:41:55,169 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 22:41:55,218 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:55,218 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:41:55,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:55,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:55,220 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:55,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:55,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:55,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-23 22:41:55,252 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:55,253 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:55,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:55,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:55,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:55,273 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:55,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:55,275 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:55,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-23 22:41:55,300 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:55,301 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4#1=0} Honda state: {ULTIMATE.start_main_#t~nondet4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:55,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:55,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:55,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:55,319 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:55,321 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:55,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:55,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-11-23 22:41:55,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:55,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:55,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:55,362 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:55,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-11-23 22:41:55,364 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:41:55,364 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:55,481 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:41:55,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:55,485 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:55,485 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:55,485 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:55,485 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:55,485 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:41:55,486 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:55,486 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:55,486 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:55,486 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2023-11-23 22:41:55,486 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:55,486 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:55,487 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 22:41:55,490 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 22:41:55,493 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 22:41:55,501 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 22:41:55,504 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 22:41:55,506 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:41:55,553 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:55,553 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:41:55,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:55,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:55,555 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:55,561 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 22:41:55,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:55,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:55,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:55,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:55,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:55,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:55,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:55,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-11-23 22:41:55,584 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:55,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2023-11-23 22:41:55,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:55,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:55,606 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:55,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 22:41:55,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:55,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:55,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:55,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:55,625 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:41:55,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:41:55,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-11-23 22:41:55,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:55,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2023-11-23 22:41:55,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:55,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:55,660 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:55,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-11-23 22:41:55,662 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 22:41:55,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:55,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:55,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:55,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:55,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:55,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:55,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:55,676 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:41:55,680 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:41:55,680 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-23 22:41:55,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:55,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:55,681 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:55,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2023-11-23 22:41:55,683 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:41:55,683 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:41:55,683 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:41:55,683 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-23 22:41:55,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2023-11-23 22:41:55,698 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:41:55,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:55,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:55,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:55,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:55,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:41:55,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:55,790 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 22:41:55,790 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-23 22:41:55,791 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 226 states and 343 transitions. cyclomatic complexity: 140 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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 22:41:55,887 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 226 states and 343 transitions. cyclomatic complexity: 140. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) Result 582 states and 900 transitions. Complement of second has 12 states. [2023-11-23 22:41:55,888 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 22:41:55,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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 22:41:55,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 32 transitions. [2023-11-23 22:41:55,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 32 transitions. Stem has 12 letters. Loop has 8 letters. [2023-11-23 22:41:55,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:55,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 32 transitions. Stem has 20 letters. Loop has 8 letters. [2023-11-23 22:41:55,890 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:55,890 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 32 transitions. Stem has 12 letters. Loop has 16 letters. [2023-11-23 22:41:55,890 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:55,890 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 582 states and 900 transitions. [2023-11-23 22:41:55,897 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 36 [2023-11-23 22:41:55,903 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 582 states to 544 states and 832 transitions. [2023-11-23 22:41:55,903 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2023-11-23 22:41:55,903 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2023-11-23 22:41:55,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 544 states and 832 transitions. [2023-11-23 22:41:55,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:41:55,904 INFO L218 hiAutomatonCegarLoop]: Abstraction has 544 states and 832 transitions. [2023-11-23 22:41:55,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states and 832 transitions. [2023-11-23 22:41:55,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 405. [2023-11-23 22:41:55,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 405 states have (on average 1.5901234567901235) internal successors, (644), 404 states have internal predecessors, (644), 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 22:41:55,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 644 transitions. [2023-11-23 22:41:55,920 INFO L240 hiAutomatonCegarLoop]: Abstraction has 405 states and 644 transitions. [2023-11-23 22:41:55,920 INFO L428 stractBuchiCegarLoop]: Abstraction has 405 states and 644 transitions. [2023-11-23 22:41:55,920 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-23 22:41:55,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 405 states and 644 transitions. [2023-11-23 22:41:55,923 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2023-11-23 22:41:55,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:41:55,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:41:55,924 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:55,925 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:55,925 INFO L748 eck$LassoCheckResult]: Stem: 3920#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3921#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3930#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 3976#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 4002#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 3991#L26-2 havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 3959#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 3935#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 3922#L33 [2023-11-23 22:41:55,925 INFO L750 eck$LassoCheckResult]: Loop: 3922#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 3923#L33-2 havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 4162#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 4163#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 4164#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 4137#L26-2 havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 4159#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 4158#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 3922#L33 [2023-11-23 22:41:55,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:55,926 INFO L85 PathProgramCache]: Analyzing trace with hash 295989428, now seen corresponding path program 1 times [2023-11-23 22:41:55,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:55,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463695411] [2023-11-23 22:41:55,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:55,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:55,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:55,935 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:55,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:55,936 INFO L85 PathProgramCache]: Analyzing trace with hash 930337844, now seen corresponding path program 1 times [2023-11-23 22:41:55,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:55,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499094424] [2023-11-23 22:41:55,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:55,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:55,941 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:55,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:55,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:55,946 INFO L85 PathProgramCache]: Analyzing trace with hash 25289191, now seen corresponding path program 1 times [2023-11-23 22:41:55,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:55,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606247698] [2023-11-23 22:41:55,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:55,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:55,952 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:55,957 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:56,012 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:56,012 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:56,012 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:56,013 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:56,013 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:41:56,013 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:56,013 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:56,013 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:56,013 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2023-11-23 22:41:56,013 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:56,013 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:56,014 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 22:41:56,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:41:56,021 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 22:41:56,030 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 22:41:56,033 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 22:41:56,036 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 22:41:56,086 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:56,087 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:41:56,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:56,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:56,088 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:56,091 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:56,091 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:56,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2023-11-23 22:41:56,113 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:56,114 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4#1=0} Honda state: {ULTIMATE.start_main_#t~nondet4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:56,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:56,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:56,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:56,134 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:56,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2023-11-23 22:41:56,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:56,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:56,154 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:41:56,154 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 22:41:56,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:56,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:56,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:56,167 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:56,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2023-11-23 22:41:56,170 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:56,170 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:56,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2023-11-23 22:41:56,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:56,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:56,195 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:56,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2023-11-23 22:41:56,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:41:56,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:56,297 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:41:56,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:56,301 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:56,301 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:56,302 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:56,302 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:56,302 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:41:56,302 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:56,302 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:56,302 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:56,302 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2023-11-23 22:41:56,302 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:56,302 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:56,303 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 22:41:56,306 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 22:41:56,314 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 22:41:56,317 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 22:41:56,319 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 22:41:56,321 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 22:41:56,371 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:56,371 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:41:56,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:56,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:56,372 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:56,381 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 22:41:56,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:56,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:56,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:56,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:56,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:56,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:56,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:56,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2023-11-23 22:41:56,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:56,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:56,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:56,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:56,428 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:56,431 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 22:41:56,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:56,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:56,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:56,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:56,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:56,444 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:56,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:56,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2023-11-23 22:41:56,460 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:41:56,474 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:41:56,474 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-23 22:41:56,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:56,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:56,475 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:56,477 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:41:56,478 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:41:56,478 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:41:56,478 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-23 22:41:56,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2023-11-23 22:41:56,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:56,497 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:41:56,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:56,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:56,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:56,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:41:56,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:56,579 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 22:41:56,580 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-23 22:41:56,580 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 405 states and 644 transitions. cyclomatic complexity: 278 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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 22:41:56,689 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 405 states and 644 transitions. cyclomatic complexity: 278. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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 1086 states and 1724 transitions. Complement of second has 12 states. [2023-11-23 22:41:56,689 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 22:41:56,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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 22:41:56,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2023-11-23 22:41:56,690 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 8 letters. [2023-11-23 22:41:56,691 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:56,691 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 16 letters. Loop has 8 letters. [2023-11-23 22:41:56,691 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:56,691 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 16 letters. [2023-11-23 22:41:56,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:56,692 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1086 states and 1724 transitions. [2023-11-23 22:41:56,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 22:41:56,710 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1086 states to 677 states and 1020 transitions. [2023-11-23 22:41:56,710 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2023-11-23 22:41:56,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-11-23 22:41:56,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 677 states and 1020 transitions. [2023-11-23 22:41:56,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:41:56,711 INFO L218 hiAutomatonCegarLoop]: Abstraction has 677 states and 1020 transitions. [2023-11-23 22:41:56,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states and 1020 transitions. [2023-11-23 22:41:56,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 463. [2023-11-23 22:41:56,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 463 states have (on average 1.57451403887689) internal successors, (729), 462 states have internal predecessors, (729), 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 22:41:56,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 729 transitions. [2023-11-23 22:41:56,725 INFO L240 hiAutomatonCegarLoop]: Abstraction has 463 states and 729 transitions. [2023-11-23 22:41:56,725 INFO L428 stractBuchiCegarLoop]: Abstraction has 463 states and 729 transitions. [2023-11-23 22:41:56,725 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-23 22:41:56,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 463 states and 729 transitions. [2023-11-23 22:41:56,729 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 22:41:56,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:41:56,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:41:56,730 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:56,730 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 22:41:56,730 INFO L748 eck$LassoCheckResult]: Stem: 5494#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 5495#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 5506#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 5523#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5513#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 5511#L26-2 havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 5508#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 5507#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 5496#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 5497#L33-2 havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 5691#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 5687#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5681#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 5678#L26-2 havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 5671#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 5672#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5491#L26 [2023-11-23 22:41:56,730 INFO L750 eck$LassoCheckResult]: Loop: 5491#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 5528#L26-2 havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 5525#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 5490#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5491#L26 [2023-11-23 22:41:56,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:56,731 INFO L85 PathProgramCache]: Analyzing trace with hash 25229600, now seen corresponding path program 1 times [2023-11-23 22:41:56,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:56,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29806313] [2023-11-23 22:41:56,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:56,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:56,736 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:56,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:56,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:56,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1510086, now seen corresponding path program 2 times [2023-11-23 22:41:56,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:56,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754925574] [2023-11-23 22:41:56,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:56,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:56,745 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:56,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:56,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:56,748 INFO L85 PathProgramCache]: Analyzing trace with hash -131572635, now seen corresponding path program 2 times [2023-11-23 22:41:56,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:56,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738310084] [2023-11-23 22:41:56,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:56,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:56,754 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:41:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:41:56,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:41:56,787 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:56,787 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:56,787 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:56,787 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:56,787 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:41:56,787 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:56,788 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:56,788 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:56,788 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2023-11-23 22:41:56,788 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:56,788 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:56,825 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 22:41:56,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:56,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:56,853 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 22:41:56,856 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 22:41:56,859 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 22:41:56,862 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 22:41:56,906 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:56,907 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:41:56,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:56,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:56,908 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:56,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2023-11-23 22:41:56,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:41:56,913 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:56,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:56,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:56,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:56,945 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:56,948 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:41:56,948 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:41:56,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2023-11-23 22:41:57,044 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:41:57,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:57,047 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:41:57,047 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:41:57,048 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:41:57,048 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:41:57,048 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:41:57,048 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:57,048 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:41:57,048 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:41:57,048 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2023-11-23 22:41:57,048 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:41:57,048 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:41:57,049 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 22:41:57,052 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 22:41:57,055 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 22:41:57,065 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 22:41:57,069 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 22:41:57,117 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:41:57,117 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:41:57,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:57,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:57,121 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:57,125 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 22:41:57,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:57,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:57,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:57,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:57,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:57,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:57,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:57,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2023-11-23 22:41:57,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:57,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:57,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:57,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:57,175 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:57,182 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 22:41:57,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:57,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:57,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:57,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:57,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:57,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:57,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:57,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2023-11-23 22:41:57,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:41:57,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:57,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:57,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:57,230 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:57,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2023-11-23 22:41:57,236 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 22:41:57,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:41:57,248 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:41:57,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:41:57,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:41:57,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:41:57,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:41:57,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:41:57,253 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:41:57,256 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:41:57,256 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-23 22:41:57,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:41:57,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:57,258 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:57,264 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:41:57,264 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:41:57,265 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:41:57,265 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-23 22:41:57,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2023-11-23 22:41:57,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:57,286 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:41:57,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:57,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:57,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:57,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:41:57,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:57,367 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 22:41:57,368 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 22:41:57,368 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 22:41:57,402 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 684 states and 1050 transitions. Complement of second has 7 states. [2023-11-23 22:41:57,403 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 22:41:57,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 22:41:57,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2023-11-23 22:41:57,404 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 4 letters. [2023-11-23 22:41:57,405 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:57,405 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:41:57,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:57,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:57,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:57,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:41:57,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:57,475 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 22:41:57,476 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 22:41:57,476 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 22:41:57,510 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 694 states and 1033 transitions. Complement of second has 7 states. [2023-11-23 22:41:57,510 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 22:41:57,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 22:41:57,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-11-23 22:41:57,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2023-11-23 22:41:57,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:57,512 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:41:57,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:57,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:57,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:57,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:41:57,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:57,585 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 22:41:57,586 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 22:41:57,586 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 22:41:57,620 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 807 states and 1314 transitions. Complement of second has 8 states. [2023-11-23 22:41:57,620 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 22:41:57,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 22:41:57,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-11-23 22:41:57,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 4 letters. [2023-11-23 22:41:57,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:57,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 20 letters. Loop has 4 letters. [2023-11-23 22:41:57,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:57,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 8 letters. [2023-11-23 22:41:57,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:41:57,623 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 807 states and 1314 transitions. [2023-11-23 22:41:57,632 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-23 22:41:57,632 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 807 states to 0 states and 0 transitions. [2023-11-23 22:41:57,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-23 22:41:57,632 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-23 22:41:57,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-23 22:41:57,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:57,633 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:41:57,633 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:41:57,633 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:41:57,633 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-11-23 22:41:57,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-23 22:41:57,634 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-23 22:41:57,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-23 22:41:57,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 10:41:57 BoogieIcfgContainer [2023-11-23 22:41:57,642 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-23 22:41:57,642 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:41:57,642 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:41:57,643 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:41:57,643 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:41:47" (3/4) ... [2023-11-23 22:41:57,645 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 22:41:57,646 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:41:57,647 INFO L158 Benchmark]: Toolchain (without parser) took 11056.45ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 107.5MB in the beginning and 117.7MB in the end (delta: -10.2MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2023-11-23 22:41:57,647 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 63.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:41:57,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.27ms. Allocated memory is still 153.1MB. Free memory was 107.5MB in the beginning and 98.0MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 22:41:57,648 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.47ms. Allocated memory is still 153.1MB. Free memory was 98.0MB in the beginning and 96.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:41:57,648 INFO L158 Benchmark]: Boogie Preprocessor took 64.78ms. Allocated memory is still 153.1MB. Free memory was 96.9MB in the beginning and 95.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:41:57,649 INFO L158 Benchmark]: RCFGBuilder took 336.75ms. Allocated memory is still 153.1MB. Free memory was 95.3MB in the beginning and 86.6MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 22:41:57,649 INFO L158 Benchmark]: BuchiAutomizer took 10280.48ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 86.6MB in the beginning and 118.7MB in the end (delta: -32.2MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2023-11-23 22:41:57,649 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 197.1MB. Free memory was 118.7MB in the beginning and 117.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:41:57,652 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 63.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.27ms. Allocated memory is still 153.1MB. Free memory was 107.5MB in the beginning and 98.0MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.47ms. Allocated memory is still 153.1MB. Free memory was 98.0MB in the beginning and 96.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.78ms. Allocated memory is still 153.1MB. Free memory was 96.9MB in the beginning and 95.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 336.75ms. Allocated memory is still 153.1MB. Free memory was 95.3MB in the beginning and 86.6MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 10280.48ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 86.6MB in the beginning and 118.7MB in the end (delta: -32.2MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 197.1MB. Free memory was 118.7MB in the beginning and 117.7MB 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.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (0 trivial, 7 deterministic, 3 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 7 locations. One deterministic module has affine ranking function x and consists of 7 locations. One deterministic module has affine ranking function y and consists of 7 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.2s and 11 iterations. TraceHistogramMax:4. Analysis of lassos took 7.4s. Construction of modules took 0.2s. Büchi inclusion checks took 2.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 494 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [7, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/6 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 283 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 267 mSDsluCounter, 307 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 283 IncrementalHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 206 mSDtfsCounter, 283 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT10 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax172 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq129 hnf96 smp100 dnf100 smp100 tf109 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 61ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 18 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 10 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.0s 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 22:41:57,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2023-11-23 22:41:57,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cee8a61-9b48-40c9-b0ef-b9249e9b3486/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE