./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 8553bd7027647a5604588c30aa29c454809a172163824e055b8bdeea70d5613d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:48:42,807 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:48:42,927 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 22:48:42,939 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:48:42,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:48:42,977 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:48:42,978 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:48:42,979 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:48:42,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:48:42,988 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:48:42,989 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:48:42,990 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:48:42,990 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:48:42,992 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:48:42,992 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:48:42,993 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:48:42,993 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:48:42,994 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:48:42,995 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:48:42,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:48:42,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:48:42,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:48:42,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:48:42,997 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:48:42,997 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:48:42,997 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:48:42,998 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:48:42,998 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:48:42,998 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:48:42,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:48:42,999 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:48:43,000 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:48:43,000 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:48:43,001 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_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8553bd7027647a5604588c30aa29c454809a172163824e055b8bdeea70d5613d [2023-11-06 22:48:43,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:48:43,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:48:43,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:48:43,322 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:48:43,324 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:48:43,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c [2023-11-06 22:48:46,461 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:48:46,645 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:48:46,647 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c [2023-11-06 22:48:46,657 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/data/f71d89522/e59dea8cfcb747a4a18496ded0f15a11/FLAG3c9558b99 [2023-11-06 22:48:46,673 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/data/f71d89522/e59dea8cfcb747a4a18496ded0f15a11 [2023-11-06 22:48:46,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:48:46,677 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:48:46,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:48:46,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:48:46,685 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:48:46,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:48:46" (1/1) ... [2023-11-06 22:48:46,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bcd4f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:46, skipping insertion in model container [2023-11-06 22:48:46,687 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:48:46" (1/1) ... [2023-11-06 22:48:46,708 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:48:46,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:48:46,874 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:48:46,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:48:46,906 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:48:46,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:46 WrapperNode [2023-11-06 22:48:46,907 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:48:46,909 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:48:46,909 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:48:46,909 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:48:46,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:46" (1/1) ... [2023-11-06 22:48:46,922 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:46" (1/1) ... [2023-11-06 22:48:46,941 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-11-06 22:48:46,941 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:48:46,942 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:48:46,942 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:48:46,942 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:48:46,951 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:46" (1/1) ... [2023-11-06 22:48:46,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:46" (1/1) ... [2023-11-06 22:48:46,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:46" (1/1) ... [2023-11-06 22:48:46,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:46" (1/1) ... [2023-11-06 22:48:46,955 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:46" (1/1) ... [2023-11-06 22:48:46,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:46" (1/1) ... [2023-11-06 22:48:46,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:46" (1/1) ... [2023-11-06 22:48:46,961 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:46" (1/1) ... [2023-11-06 22:48:46,962 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:48:46,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:48:46,963 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:48:46,964 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:48:46,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:46" (1/1) ... [2023-11-06 22:48:46,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:46,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:47,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:47,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:48:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:48:47,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:48:47,131 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:48:47,133 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:48:47,244 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:48:47,255 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:48:47,255 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:48:47,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:48:47 BoogieIcfgContainer [2023-11-06 22:48:47,257 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:48:47,258 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:48:47,258 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:48:47,270 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:48:47,271 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:48:47,271 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:48:46" (1/3) ... [2023-11-06 22:48:47,273 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17a2ae29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:48:47, skipping insertion in model container [2023-11-06 22:48:47,273 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:48:47,274 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:46" (2/3) ... [2023-11-06 22:48:47,276 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17a2ae29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:48:47, skipping insertion in model container [2023-11-06 22:48:47,276 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:48:47,276 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:48:47" (3/3) ... [2023-11-06 22:48:47,278 INFO L332 chiAutomizerObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1.c [2023-11-06 22:48:47,362 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:48:47,362 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:48:47,362 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:48:47,363 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:48:47,363 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:48:47,363 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:48:47,363 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:48:47,364 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:48:47,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2023-11-06 22:48:47,386 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 22:48:47,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:48:47,386 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:48:47,391 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-06 22:48:47,391 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:48:47,392 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:48:47,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2023-11-06 22:48:47,393 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 22:48:47,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:48:47,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:48:47,394 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-06 22:48:47,394 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:48:47,403 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L18true assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 6#L20-2true [2023-11-06 22:48:47,403 INFO L750 eck$LassoCheckResult]: Loop: 6#L20-2true assume !!(main_~y1~0#1 != main_~y2~0#1); 9#L20true assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 6#L20-2true [2023-11-06 22:48:47,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:47,408 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-11-06 22:48:47,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:47,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842583684] [2023-11-06 22:48:47,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:47,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:47,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:47,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:47,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:47,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2023-11-06 22:48:47,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:47,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450517258] [2023-11-06 22:48:47,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:47,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:47,532 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:47,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:47,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:47,540 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2023-11-06 22:48:47,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:47,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485551113] [2023-11-06 22:48:47,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:47,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:47,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:47,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:47,642 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:48:47,643 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:48:47,643 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:48:47,643 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:48:47,643 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:48:47,643 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:47,643 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:48:47,644 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:48:47,644 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration1_Lasso [2023-11-06 22:48:47,644 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:48:47,644 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:48:47,665 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:47,677 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:47,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:47,695 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:47,699 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:47,703 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:47,785 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:48:47,785 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:48:47,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:47,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:47,789 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:47,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 22:48:47,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:47,796 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:47,818 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:48:47,818 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: [] [2023-11-06 22:48:47,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-06 22:48:47,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:47,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:47,823 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:47,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:48:47,827 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:47,827 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:47,851 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:48:47,851 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:48:47,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:47,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:47,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:47,862 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:47,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:48:47,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:47,868 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:47,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:47,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:47,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:47,905 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:47,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:48:47,912 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:48:47,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:48,071 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:48:48,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:48,082 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:48:48,082 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:48:48,082 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:48:48,082 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:48:48,082 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:48:48,083 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:48,083 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:48:48,083 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:48:48,083 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration1_Lasso [2023-11-06 22:48:48,083 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:48:48,083 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:48:48,086 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:48,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:48,104 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:48,107 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:48,110 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:48,113 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:48,171 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:48:48,175 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:48:48,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:48,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:48,178 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:48,189 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 [2023-11-06 22:48:48,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:48,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:48,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:48,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:48,208 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:48:48,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:48:48,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:48:48,222 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:48,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:48,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:48,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:48,235 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:48,245 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 [2023-11-06 22:48:48,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:48,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:48:48,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:48,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:48,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:48,269 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:48:48,269 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:48:48,289 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:48:48,309 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-06 22:48:48,309 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:48:48,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:48,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:48,338 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:48,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:48:48,339 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:48:48,351 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-06 22:48:48,351 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:48:48,352 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y2~0#1, ULTIMATE.start_main_~y1~0#1) = -1*ULTIMATE.start_main_~y2~0#1 + 1*ULTIMATE.start_main_~y1~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2023-11-06 22:48:48,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:48,371 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-06 22:48:48,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:48,433 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:48:48,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:48,454 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:48:48,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:48:48,504 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-06 22:48:48,506 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:48:48,585 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 33 transitions. Complement of second has 6 states. [2023-11-06 22:48:48,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:48:48,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:48:48,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2023-11-06 22:48:48,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-06 22:48:48,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:48,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-06 22:48:48,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:48,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-06 22:48:48,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:48,597 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2023-11-06 22:48:48,600 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 22:48:48,603 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 9 states and 12 transitions. [2023-11-06 22:48:48,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-06 22:48:48,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-06 22:48:48,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-11-06 22:48:48,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:48:48,607 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-06 22:48:48,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-11-06 22:48:48,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-06 22:48:48,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2023-11-06 22:48:48,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2023-11-06 22:48:48,632 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-06 22:48:48,632 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-06 22:48:48,632 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:48:48,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2023-11-06 22:48:48,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 22:48:48,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:48:48,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:48:48,634 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-06 22:48:48,634 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:48:48,634 INFO L748 eck$LassoCheckResult]: Stem: 88#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 89#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_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 81#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 82#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 86#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 83#L20-2 [2023-11-06 22:48:48,634 INFO L750 eck$LassoCheckResult]: Loop: 83#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 84#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 83#L20-2 [2023-11-06 22:48:48,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:48,635 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 1 times [2023-11-06 22:48:48,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:48,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491253776] [2023-11-06 22:48:48,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:48,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:48,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:48,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:48,653 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:48,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 2 times [2023-11-06 22:48:48,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:48,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805049104] [2023-11-06 22:48:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:48,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:48,659 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:48,664 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:48,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:48,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122026, now seen corresponding path program 1 times [2023-11-06 22:48:48,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:48,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087525196] [2023-11-06 22:48:48,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:48,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:48,673 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:48,680 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:48,750 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:48:48,751 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:48:48,751 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:48:48,751 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:48:48,751 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:48:48,751 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:48,751 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:48:48,751 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:48:48,752 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration2_Lasso [2023-11-06 22:48:48,752 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:48:48,752 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:48:48,754 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:48,757 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:48,770 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:48,773 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:48,775 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:48,778 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:48,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:48,868 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:48:48,868 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:48:48,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:48,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:48,871 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:48,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:48,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:48,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:48:48,907 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:48:48,907 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: [] [2023-11-06 22:48:48,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:48,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:48,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:48,919 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:48,932 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:48,932 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:48,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 22:48:48,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:48,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:48,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:48,976 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:48,990 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:48:48,990 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:48,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 22:48:49,136 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:48:49,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:49,144 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:48:49,144 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:48:49,144 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:48:49,144 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:48:49,144 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:48:49,144 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:49,144 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:48:49,144 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:48:49,145 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration2_Lasso [2023-11-06 22:48:49,145 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:48:49,145 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:48:49,146 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:49,154 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:49,157 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:49,160 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:49,163 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:49,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:49,254 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:48:49,254 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:48:49,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:49,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:49,255 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:49,260 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 [2023-11-06 22:48:49,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:49,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:49,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:49,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:49,275 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:48:49,276 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:48:49,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 22:48:49,287 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:49,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:49,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:49,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:49,297 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:49,308 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 [2023-11-06 22:48:49,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:49,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:48:49,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:49,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:49,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:49,322 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:48:49,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:48:49,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 22:48:49,339 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:49,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:49,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:49,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:49,348 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:49,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 22:48:49,357 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 [2023-11-06 22:48:49,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:49,370 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:48:49,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:49,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:49,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:49,371 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:48:49,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:48:49,381 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:49,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:49,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:49,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:49,390 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:49,400 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 [2023-11-06 22:48:49,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:49,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:49,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:49,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:49,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:48:49,416 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:48:49,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-06 22:48:49,435 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:49,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:49,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:49,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:49,445 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:49,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-06 22:48:49,456 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 [2023-11-06 22:48:49,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:49,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:48:49,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:49,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:49,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:49,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:48:49,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:48:49,479 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:49,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:49,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:49,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:49,488 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:49,496 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 [2023-11-06 22:48:49,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:49,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:49,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:49,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:49,514 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:48:49,514 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:48:49,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-06 22:48:49,527 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:48:49,536 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-06 22:48:49,536 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:48:49,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:49,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:49,537 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:49,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-06 22:48:49,544 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:48:49,584 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-06 22:48:49,584 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:48:49,584 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1, ULTIMATE.start_main_~y2~0#1) = 1*ULTIMATE.start_main_~y1~0#1 - 1*ULTIMATE.start_main_~y2~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2023-11-06 22:48:49,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:49,595 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-06 22:48:49,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:49,639 WARN L260 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:48:49,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:49,683 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:48:49,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:49,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:48:49,699 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-11-06 22:48:49,700 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-06 22:48:49,741 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 13 states and 18 transitions. Complement of second has 6 states. [2023-11-06 22:48:49,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:48:49,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-06 22:48:49,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-06 22:48:49,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-06 22:48:49,744 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:49,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-06 22:48:49,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:49,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2023-11-06 22:48:49,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:49,747 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2023-11-06 22:48:49,749 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 22:48:49,750 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2023-11-06 22:48:49,750 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-06 22:48:49,750 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-06 22:48:49,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2023-11-06 22:48:49,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:48:49,751 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-06 22:48:49,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2023-11-06 22:48:49,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-06 22:48:49,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:48:49,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-11-06 22:48:49,754 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-06 22:48:49,754 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-06 22:48:49,754 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:48:49,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2023-11-06 22:48:49,756 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 22:48:49,756 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:48:49,756 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:48:49,756 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2023-11-06 22:48:49,757 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:48:49,757 INFO L748 eck$LassoCheckResult]: Stem: 162#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 163#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 155#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 156#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 160#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 164#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 165#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 157#L20-2 [2023-11-06 22:48:49,757 INFO L750 eck$LassoCheckResult]: Loop: 157#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 158#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 157#L20-2 [2023-11-06 22:48:49,758 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:49,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122028, now seen corresponding path program 2 times [2023-11-06 22:48:49,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:49,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136745822] [2023-11-06 22:48:49,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:49,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:49,784 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:49,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:49,790 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:49,790 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:49,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 3 times [2023-11-06 22:48:49,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:49,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470587239] [2023-11-06 22:48:49,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:49,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:49,796 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:49,799 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:49,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:49,800 INFO L85 PathProgramCache]: Analyzing trace with hash -444518225, now seen corresponding path program 2 times [2023-11-06 22:48:49,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:49,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703749207] [2023-11-06 22:48:49,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:49,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:49,808 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:49,816 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:49,883 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:48:49,884 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:48:49,884 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:48:49,884 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:48:49,884 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:48:49,884 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:49,884 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:48:49,885 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:48:49,885 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration3_Lasso [2023-11-06 22:48:49,885 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:48:49,885 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:48:49,886 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:49,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:49,908 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:49,911 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:49,914 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:49,917 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:49,989 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:48:49,989 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:48:49,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:49,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:49,991 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:50,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:50,005 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:50,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-06 22:48:50,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:50,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:50,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:50,044 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:50,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:48:50,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:50,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-06 22:48:50,206 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:48:50,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:50,210 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:48:50,210 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:48:50,210 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:48:50,211 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:48:50,211 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:48:50,211 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:50,211 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:48:50,211 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:48:50,211 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration3_Lasso [2023-11-06 22:48:50,211 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:48:50,211 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:48:50,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:50,227 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:50,230 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:50,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:50,236 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:50,240 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:50,305 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:48:50,305 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:48:50,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:50,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:50,307 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:50,320 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 [2023-11-06 22:48:50,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:50,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:50,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:50,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:50,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:48:50,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:48:50,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-06 22:48:50,350 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:48:50,360 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-11-06 22:48:50,360 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-11-06 22:48:50,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:50,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:50,364 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:50,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-06 22:48:50,370 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:48:50,397 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-06 22:48:50,397 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:48:50,397 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1, ULTIMATE.start_main_~y2~0#1) = 1*ULTIMATE.start_main_~y1~0#1 - 1*ULTIMATE.start_main_~y2~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2023-11-06 22:48:50,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:50,410 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-06 22:48:50,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:50,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:48:50,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:50,484 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:48:50,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:50,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:48:50,497 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-11-06 22:48:50,498 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 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) [2023-11-06 22:48:50,535 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. 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 15 states and 22 transitions. Complement of second has 6 states. [2023-11-06 22:48:50,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:48:50,538 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) [2023-11-06 22:48:50,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-06 22:48:50,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-06 22:48:50,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:50,539 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:48:50,564 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:50,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:48:50,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:50,605 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:48:50,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:50,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:48:50,621 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2023-11-06 22:48:50,621 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 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) [2023-11-06 22:48:50,659 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. 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 15 states and 22 transitions. Complement of second has 6 states. [2023-11-06 22:48:50,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:48:50,661 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) [2023-11-06 22:48:50,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-06 22:48:50,662 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-06 22:48:50,662 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:50,662 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:48:50,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:50,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:50,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:48:50,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:50,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:50,763 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:48:50,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:50,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:48:50,779 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-11-06 22:48:50,779 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 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) [2023-11-06 22:48:50,819 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. 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 17 states and 25 transitions. Complement of second has 5 states. [2023-11-06 22:48:50,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:48:50,822 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) [2023-11-06 22:48:50,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-06 22:48:50,823 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-06 22:48:50,823 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:50,823 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-06 22:48:50,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:50,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2023-11-06 22:48:50,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:50,825 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 25 transitions. [2023-11-06 22:48:50,828 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:48:50,830 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 21 transitions. [2023-11-06 22:48:50,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-06 22:48:50,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-06 22:48:50,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2023-11-06 22:48:50,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:48:50,831 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2023-11-06 22:48:50,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2023-11-06 22:48:50,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 7. [2023-11-06 22:48:50,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 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) [2023-11-06 22:48:50,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2023-11-06 22:48:50,833 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-11-06 22:48:50,833 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-11-06 22:48:50,833 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:48:50,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2023-11-06 22:48:50,834 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:48:50,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:48:50,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:48:50,835 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-06 22:48:50,835 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:48:50,835 INFO L748 eck$LassoCheckResult]: Stem: 349#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 350#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_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 344#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 345#L20-2 [2023-11-06 22:48:50,835 INFO L750 eck$LassoCheckResult]: Loop: 345#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 346#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 345#L20-2 [2023-11-06 22:48:50,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:50,836 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2023-11-06 22:48:50,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:50,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402106138] [2023-11-06 22:48:50,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:50,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:50,844 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:50,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:50,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:50,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2023-11-06 22:48:50,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:50,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448558718] [2023-11-06 22:48:50,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:50,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:50,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:50,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:50,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:50,880 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 3 times [2023-11-06 22:48:50,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:50,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730573445] [2023-11-06 22:48:50,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:50,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:50,894 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:50,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:50,938 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:48:50,938 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:48:50,938 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:48:50,938 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:48:50,938 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:48:50,939 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:50,939 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:48:50,939 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:48:50,939 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration4_Lasso [2023-11-06 22:48:50,939 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:48:50,939 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:48:50,943 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:50,945 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:50,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:50,952 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:50,955 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:50,958 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:51,030 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:48:51,030 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:48:51,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:51,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:51,031 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:51,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-06 22:48:51,040 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:51,040 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:51,062 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:48:51,062 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:48:51,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:51,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:51,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:51,072 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:51,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:51,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:51,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-06 22:48:51,107 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:48:51,107 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:48:51,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:51,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:51,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:51,117 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:51,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:51,124 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:51,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-06 22:48:51,151 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:48:51,151 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:48:51,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:51,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:51,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:51,161 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:51,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:51,167 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:51,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-06 22:48:51,195 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:48:51,195 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:48:51,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:51,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:51,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:51,205 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:51,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:51,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:51,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-06 22:48:51,227 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:48:51,227 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: [] [2023-11-06 22:48:51,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-11-06 22:48:51,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:51,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:51,231 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:51,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:51,234 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:51,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-06 22:48:51,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:51,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:51,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:51,277 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:51,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-06 22:48:51,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:48:51,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:51,435 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:48:51,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-11-06 22:48:51,438 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:48:51,438 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:48:51,438 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:48:51,438 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:48:51,438 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:48:51,438 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:51,438 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:48:51,438 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:48:51,438 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration4_Lasso [2023-11-06 22:48:51,438 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:48:51,439 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:48:51,440 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:51,452 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:51,454 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:51,466 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:51,469 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:51,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:51,535 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:48:51,535 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:48:51,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:51,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:51,537 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:51,548 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 [2023-11-06 22:48:51,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:51,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:48:51,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:51,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:51,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:51,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-06 22:48:51,563 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:48:51,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:48:51,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:51,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:51,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:51,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:51,588 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:51,595 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 [2023-11-06 22:48:51,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:51,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:51,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:51,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:51,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-06 22:48:51,610 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:48:51,611 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:48:51,621 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:51,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:51,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:51,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:51,630 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:51,634 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 [2023-11-06 22:48:51,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:51,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:51,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:51,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:51,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-06 22:48:51,651 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:48:51,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:48:51,663 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:48:51,670 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-11-06 22:48:51,671 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:48:51,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:51,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:51,673 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:51,677 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:48:51,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-06 22:48:51,702 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-06 22:48:51,702 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:48:51,703 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y2~0#1, ULTIMATE.start_main_~y1~0#1) = 1*ULTIMATE.start_main_~y2~0#1 - 1*ULTIMATE.start_main_~y1~0#1 Supporting invariants [1*ULTIMATE.start_main_~y1~0#1 - 1 >= 0] [2023-11-06 22:48:51,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:51,713 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-06 22:48:51,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:51,746 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:48:51,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:51,755 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:48:51,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:51,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:48:51,780 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 [2023-11-06 22:48:51,780 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:48:51,820 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 19 transitions. Complement of second has 5 states. [2023-11-06 22:48:51,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:48:51,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:48:51,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-11-06 22:48:51,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-06 22:48:51,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:51,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-06 22:48:51,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:51,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-06 22:48:51,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:51,823 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 19 transitions. [2023-11-06 22:48:51,824 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:48:51,824 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 11 states and 15 transitions. [2023-11-06 22:48:51,824 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-06 22:48:51,824 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-06 22:48:51,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2023-11-06 22:48:51,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:48:51,825 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2023-11-06 22:48:51,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2023-11-06 22:48:51,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-11-06 22:48:51,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:48:51,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2023-11-06 22:48:51,827 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-11-06 22:48:51,827 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-11-06 22:48:51,827 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 22:48:51,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2023-11-06 22:48:51,828 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:48:51,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:48:51,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:48:51,830 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2023-11-06 22:48:51,830 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:48:51,830 INFO L748 eck$LassoCheckResult]: Stem: 413#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 414#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 408#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 409#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 410#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 417#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 415#L20 [2023-11-06 22:48:51,830 INFO L750 eck$LassoCheckResult]: Loop: 415#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 416#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 415#L20 [2023-11-06 22:48:51,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:51,831 INFO L85 PathProgramCache]: Analyzing trace with hash 889513673, now seen corresponding path program 2 times [2023-11-06 22:48:51,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:51,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423214805] [2023-11-06 22:48:51,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:51,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:51,836 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:51,840 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:51,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:51,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 2 times [2023-11-06 22:48:51,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:51,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980814316] [2023-11-06 22:48:51,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:51,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:51,845 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:51,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:51,848 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:51,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:51,849 INFO L85 PathProgramCache]: Analyzing trace with hash 124148452, now seen corresponding path program 3 times [2023-11-06 22:48:51,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:51,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849756034] [2023-11-06 22:48:51,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:51,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:51,855 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:51,860 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:51,911 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:48:51,912 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:48:51,912 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:48:51,912 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:48:51,912 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:48:51,912 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:51,912 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:48:51,912 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:48:51,912 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration5_Lasso [2023-11-06 22:48:51,913 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:48:51,913 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:48:51,914 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:51,917 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:51,920 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:51,922 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:51,936 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:51,939 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:52,031 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:48:52,031 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:48:52,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:52,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:52,032 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:52,040 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:52,040 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:52,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-06 22:48:52,067 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:48:52,067 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:48:52,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:52,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:52,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:52,075 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:52,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:52,080 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:52,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-06 22:48:52,107 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:48:52,107 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:48:52,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:52,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:52,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:52,117 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:52,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:52,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:52,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-06 22:48:52,135 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:48:52,135 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:48:52,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:52,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:52,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:52,139 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:52,147 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:52,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:52,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-06 22:48:52,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:52,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:52,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:52,180 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:52,183 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:48:52,184 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:52,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-06 22:48:52,409 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:48:52,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2023-11-06 22:48:52,412 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:48:52,412 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:48:52,412 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:48:52,412 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:48:52,413 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:48:52,413 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:52,413 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:48:52,413 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:48:52,413 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration5_Lasso [2023-11-06 22:48:52,413 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:48:52,413 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:48:52,414 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:52,426 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:52,429 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:52,432 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:52,434 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:52,436 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:52,530 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:48:52,530 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:48:52,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:52,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:52,532 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:52,535 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 [2023-11-06 22:48:52,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:52,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:48:52,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:52,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:52,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:52,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:48:52,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:48:52,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-06 22:48:52,567 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:52,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:52,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:52,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:52,576 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:52,589 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 [2023-11-06 22:48:52,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:52,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:52,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:52,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:52,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-06 22:48:52,605 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:48:52,605 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:48:52,616 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:52,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:52,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:52,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:52,626 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:52,630 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 [2023-11-06 22:48:52,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:52,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:52,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:52,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:52,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-06 22:48:52,646 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:48:52,646 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:48:52,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:52,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:52,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:52,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:52,681 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:52,688 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 [2023-11-06 22:48:52,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:52,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:48:52,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:52,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:52,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:52,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-06 22:48:52,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:48:52,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:48:52,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:52,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:52,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:52,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:52,719 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:52,723 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 [2023-11-06 22:48:52,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:52,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:48:52,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:52,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:52,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:52,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-06 22:48:52,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:48:52,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:48:52,751 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:52,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:52,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:52,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:52,756 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:52,762 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 [2023-11-06 22:48:52,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:52,775 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2023-11-06 22:48:52,775 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:48:52,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:52,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-06 22:48:52,786 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2023-11-06 22:48:52,786 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-11-06 22:48:52,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:52,834 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:48:52,861 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2023-11-06 22:48:52,861 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-11-06 22:48:52,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:52,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:52,863 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:52,867 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:48:52,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-06 22:48:52,895 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 4. [2023-11-06 22:48:52,895 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:48:52,895 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1, ULTIMATE.start_main_~y2~0#1) = -2*ULTIMATE.start_main_~y1~0#1 + 3*ULTIMATE.start_main_~y2~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 >= 0, 3*ULTIMATE.start_main_~y1~0#1 - 2 >= 0] [2023-11-06 22:48:52,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:52,905 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2023-11-06 22:48:52,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:52,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:48:52,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:52,964 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:48:52,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:52,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:48:52,989 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2023-11-06 22:48:52,990 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 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) [2023-11-06 22:48:53,029 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. 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 15 states and 19 transitions. Complement of second has 6 states. [2023-11-06 22:48:53,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:48:53,032 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) [2023-11-06 22:48:53,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2023-11-06 22:48:53,033 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-06 22:48:53,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:53,033 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:48:53,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:53,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:48:53,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:53,096 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:48:53,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:53,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:48:53,126 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2023-11-06 22:48:53,127 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 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) [2023-11-06 22:48:53,172 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. 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 12 states and 16 transitions. Complement of second has 6 states. [2023-11-06 22:48:53,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:48:53,176 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) [2023-11-06 22:48:53,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2023-11-06 22:48:53,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-06 22:48:53,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:53,176 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:48:53,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:53,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:48:53,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:53,249 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:48:53,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:53,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:48:53,277 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2023-11-06 22:48:53,278 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 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) [2023-11-06 22:48:53,309 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. 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 18 states and 22 transitions. Complement of second has 5 states. [2023-11-06 22:48:53,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:48:53,311 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) [2023-11-06 22:48:53,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-06 22:48:53,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-06 22:48:53,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:53,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-06 22:48:53,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:53,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-06 22:48:53,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:53,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2023-11-06 22:48:53,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-06 22:48:53,315 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 14 states and 18 transitions. [2023-11-06 22:48:53,315 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-06 22:48:53,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-06 22:48:53,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2023-11-06 22:48:53,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:48:53,315 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2023-11-06 22:48:53,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2023-11-06 22:48:53,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 9. [2023-11-06 22:48:53,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2023-11-06 22:48:53,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2023-11-06 22:48:53,317 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-06 22:48:53,317 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-06 22:48:53,318 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-06 22:48:53,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2023-11-06 22:48:53,318 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 22:48:53,318 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:48:53,318 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:48:53,319 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2023-11-06 22:48:53,319 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-06 22:48:53,319 INFO L748 eck$LassoCheckResult]: Stem: 592#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 593#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_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 587#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 588#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 589#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 595#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 594#L20 [2023-11-06 22:48:53,320 INFO L750 eck$LassoCheckResult]: Loop: 594#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 591#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 589#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 595#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 594#L20 [2023-11-06 22:48:53,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:53,320 INFO L85 PathProgramCache]: Analyzing trace with hash 889513673, now seen corresponding path program 3 times [2023-11-06 22:48:53,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:53,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586559132] [2023-11-06 22:48:53,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:53,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:53,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:53,330 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:53,330 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:53,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1503545, now seen corresponding path program 1 times [2023-11-06 22:48:53,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:53,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542953334] [2023-11-06 22:48:53,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:53,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:53,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:53,339 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:53,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:53,340 INFO L85 PathProgramCache]: Analyzing trace with hash -952421375, now seen corresponding path program 4 times [2023-11-06 22:48:53,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:53,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841491007] [2023-11-06 22:48:53,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:53,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:53,347 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:53,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:53,396 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:48:53,396 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:48:53,396 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:48:53,396 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:48:53,396 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:48:53,396 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:53,396 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:48:53,397 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:48:53,397 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration6_Loop [2023-11-06 22:48:53,397 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:48:53,397 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:48:53,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:53,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:53,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:53,529 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:48:53,529 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:48:53,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:53,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:53,531 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:53,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-06 22:48:53,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:53,537 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:53,571 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:48:53,571 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: [] [2023-11-06 22:48:53,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:53,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:53,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:53,577 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:53,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-06 22:48:53,583 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:53,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:53,601 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:48:53,601 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: [] [2023-11-06 22:48:53,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:53,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:53,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:53,607 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:53,611 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:48:53,611 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:53,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-06 22:48:53,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:53,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:53,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:53,630 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:53,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-06 22:48:53,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:48:53,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:48:54,134 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:48:54,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-11-06 22:48:54,138 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:48:54,138 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:48:54,138 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:48:54,138 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:48:54,138 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:48:54,138 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:54,138 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:48:54,139 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:48:54,139 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration6_Loop [2023-11-06 22:48:54,139 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:48:54,139 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:48:54,140 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:54,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:54,162 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:54,276 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:48:54,276 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:48:54,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:54,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:54,277 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:54,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-06 22:48:54,281 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 [2023-11-06 22:48:54,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:54,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:54,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:54,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:54,295 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:48:54,295 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:48:54,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:54,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:54,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:54,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:54,324 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:54,332 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 [2023-11-06 22:48:54,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:54,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:48:54,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:54,345 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:48:54,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:54,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-06 22:48:54,348 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-06 22:48:54,348 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:48:54,367 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:48:54,372 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:48:54,372 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:48:54,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:54,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:54,375 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:54,383 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:48:54,383 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:48:54,384 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:48:54,384 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y2~0#1) = 1*ULTIMATE.start_main_~y2~0#1 Supporting invariants [] [2023-11-06 22:48:54,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-06 22:48:54,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:54,389 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:48:54,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:54,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:48:54,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:54,429 WARN L260 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:48:54,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:54,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:48:54,476 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 [2023-11-06 22:48:54,476 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:48:54,501 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 42 transitions. Complement of second has 6 states. [2023-11-06 22:48:54,502 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 [2023-11-06 22:48:54,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:48:54,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-06 22:48:54,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-06 22:48:54,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:54,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 4 letters. [2023-11-06 22:48:54,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:54,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 6 letters. Loop has 8 letters. [2023-11-06 22:48:54,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:54,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 42 transitions. [2023-11-06 22:48:54,505 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:48:54,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2023-11-06 22:48:54,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 22:48:54,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 22:48:54,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 22:48:54,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:48:54,505 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:48:54,506 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:48:54,506 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:48:54,506 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-06 22:48:54,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:48:54,506 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:48:54,506 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-06 22:48:54,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:48:54 BoogieIcfgContainer [2023-11-06 22:48:54,514 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:48:54,515 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:48:54,515 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:48:54,515 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:48:54,516 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:48:47" (3/4) ... [2023-11-06 22:48:54,517 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:48:54,518 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:48:54,519 INFO L158 Benchmark]: Toolchain (without parser) took 7841.98ms. Allocated memory was 132.1MB in the beginning and 163.6MB in the end (delta: 31.5MB). Free memory was 89.5MB in the beginning and 65.3MB in the end (delta: 24.2MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2023-11-06 22:48:54,520 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 102.8MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:48:54,520 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.80ms. Allocated memory is still 132.1MB. Free memory was 89.1MB in the beginning and 79.7MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:48:54,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.94ms. Allocated memory is still 132.1MB. Free memory was 79.7MB in the beginning and 78.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:48:54,521 INFO L158 Benchmark]: Boogie Preprocessor took 20.08ms. Allocated memory is still 132.1MB. Free memory was 78.3MB in the beginning and 77.6MB in the end (delta: 726.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:48:54,521 INFO L158 Benchmark]: RCFGBuilder took 294.02ms. Allocated memory is still 132.1MB. Free memory was 77.6MB in the beginning and 69.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:48:54,521 INFO L158 Benchmark]: BuchiAutomizer took 7255.72ms. Allocated memory was 132.1MB in the beginning and 163.6MB in the end (delta: 31.5MB). Free memory was 69.2MB in the beginning and 65.3MB in the end (delta: 3.9MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2023-11-06 22:48:54,522 INFO L158 Benchmark]: Witness Printer took 4.16ms. Allocated memory is still 163.6MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:48:54,524 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 102.8MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.80ms. Allocated memory is still 132.1MB. Free memory was 89.1MB in the beginning and 79.7MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.94ms. Allocated memory is still 132.1MB. Free memory was 79.7MB in the beginning and 78.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.08ms. Allocated memory is still 132.1MB. Free memory was 78.3MB in the beginning and 77.6MB in the end (delta: 726.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 294.02ms. Allocated memory is still 132.1MB. Free memory was 77.6MB in the beginning and 69.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 7255.72ms. Allocated memory was 132.1MB in the beginning and 163.6MB in the end (delta: 31.5MB). Free memory was 69.2MB in the beginning and 65.3MB in the end (delta: 3.9MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. * Witness Printer took 4.16ms. Allocated memory is still 163.6MB. Free memory is still 65.3MB. 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 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function (y1 + (-1 * y2)) and consists of 4 locations. One deterministic module has affine ranking function (y1 + (-1 * y2)) and consists of 4 locations. One deterministic module has affine ranking function (y2 + (-1 * y1)) and consists of 3 locations. One deterministic module has affine ranking function y2 and consists of 4 locations. One nondeterministic module has affine ranking function (y1 + (-1 * y2)) and consists of 4 locations. One nondeterministic module has affine ranking function ((-2 * y1) + (3 * y2)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.1s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 5.6s. Construction of modules took 0.1s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 100 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 41 mSDtfsCounter, 100 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax155 hnf100 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq149 hnf96 smp86 dnf120 smp96 tf100 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 140ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 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! [2023-11-06 22:48:54,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:54,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:54,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4285b30b-d302-42e6-95d5-0ac49b75d20a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE