./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 59f8de3095dec84b471ea17a2f8054509a628ca6c3fce9f023768548ca2b0891 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:14:09,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:14:09,897 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-12 02:14:09,903 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:14:09,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:14:09,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:14:09,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:14:09,937 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:14:09,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:14:09,939 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:14:09,939 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:14:09,940 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-12 02:14:09,940 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-12 02:14:09,941 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-12 02:14:09,942 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-12 02:14:09,942 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-12 02:14:09,943 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-12 02:14:09,943 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:14:09,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-12 02:14:09,944 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:14:09,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:14:09,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-12 02:14:09,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-12 02:14:09,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-12 02:14:09,947 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:14:09,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:14:09,948 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-12 02:14:09,948 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:14:09,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:14:09,949 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:14:09,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:14:09,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:14:09,951 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-12 02:14:09,951 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_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59f8de3095dec84b471ea17a2f8054509a628ca6c3fce9f023768548ca2b0891 [2023-11-12 02:14:10,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:14:10,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:14:10,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:14:10,296 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:14:10,296 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:14:10,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2023-11-12 02:14:13,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:14:13,901 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:14:13,901 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2023-11-12 02:14:13,907 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/data/131bd4a5a/7f67d3faf0cb47f6be31a98fc575438a/FLAGc3c48e510 [2023-11-12 02:14:13,923 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/data/131bd4a5a/7f67d3faf0cb47f6be31a98fc575438a [2023-11-12 02:14:13,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:14:13,933 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:14:13,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:14:13,936 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:14:13,943 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:14:13,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:14:13" (1/1) ... [2023-11-12 02:14:13,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f482a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:13, skipping insertion in model container [2023-11-12 02:14:13,946 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:14:13" (1/1) ... [2023-11-12 02:14:13,974 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:14:14,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:14:14,168 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:14:14,179 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:14:14,191 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:14:14,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:14 WrapperNode [2023-11-12 02:14:14,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:14:14,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:14:14,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:14:14,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:14:14,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:14" (1/1) ... [2023-11-12 02:14:14,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:14" (1/1) ... [2023-11-12 02:14:14,223 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2023-11-12 02:14:14,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:14:14,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:14:14,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:14:14,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:14:14,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:14" (1/1) ... [2023-11-12 02:14:14,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:14" (1/1) ... [2023-11-12 02:14:14,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:14" (1/1) ... [2023-11-12 02:14:14,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:14" (1/1) ... [2023-11-12 02:14:14,238 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:14" (1/1) ... [2023-11-12 02:14:14,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:14" (1/1) ... [2023-11-12 02:14:14,243 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:14" (1/1) ... [2023-11-12 02:14:14,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:14" (1/1) ... [2023-11-12 02:14:14,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:14:14,246 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:14:14,246 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:14:14,246 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:14:14,247 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:14" (1/1) ... [2023-11-12 02:14:14,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:14,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:14,283 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:14,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-12 02:14:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:14:14,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:14:14,434 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:14:14,437 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:14:14,555 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:14:14,568 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:14:14,573 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:14:14,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:14:14 BoogieIcfgContainer [2023-11-12 02:14:14,576 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:14:14,577 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-12 02:14:14,577 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-12 02:14:14,582 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-12 02:14:14,583 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:14:14,583 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 02:14:13" (1/3) ... [2023-11-12 02:14:14,585 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13fb069f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:14:14, skipping insertion in model container [2023-11-12 02:14:14,585 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:14:14,585 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:14" (2/3) ... [2023-11-12 02:14:14,586 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13fb069f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:14:14, skipping insertion in model container [2023-11-12 02:14:14,586 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:14:14,586 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:14:14" (3/3) ... [2023-11-12 02:14:14,588 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2023-11-12 02:14:14,650 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-12 02:14:14,650 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-12 02:14:14,651 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-12 02:14:14,651 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-12 02:14:14,651 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-12 02:14:14,651 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-12 02:14:14,651 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-12 02:14:14,652 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-12 02:14:14,655 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) [2023-11-12 02:14:14,670 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-12 02:14:14,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:14:14,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:14:14,675 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-12 02:14:14,675 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-12 02:14:14,675 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-12 02:14:14,675 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) [2023-11-12 02:14:14,677 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-12 02:14:14,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:14:14,677 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:14:14,677 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-12 02:14:14,678 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-12 02:14:14,684 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L17true assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := 0;main_~j~0#1 := 0; 7#L21-2true [2023-11-12 02:14:14,684 INFO L750 eck$LassoCheckResult]: Loop: 7#L21-2true assume !!(main_~i~0#1 < main_~n~0#1); 5#L21true assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 7#L21-2true [2023-11-12 02:14:14,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:14,690 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-11-12 02:14:14,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:14,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78712775] [2023-11-12 02:14:14,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:14,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:14,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:14:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:14,794 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:14:14,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:14,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2023-11-12 02:14:14,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:14,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040455002] [2023-11-12 02:14:14,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:14,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:14,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:14:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:14,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:14:14,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:14,814 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2023-11-12 02:14:14,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:14,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868931702] [2023-11-12 02:14:14,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:14,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:14,827 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:14:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:14,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:14:14,913 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:14:14,914 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:14:14,914 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:14:14,915 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:14:14,915 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:14:14,915 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:14,915 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:14:14,915 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:14:14,915 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2023-11-12 02:14:14,916 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:14:14,916 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:14:14,934 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:14,946 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:14,951 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:14,961 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:15,023 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:14:15,024 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:14:15,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:15,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:15,029 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:15,046 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:14:15,046 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:14:15,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-12 02:14:15,075 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:14:15,075 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:14:15,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-12 02:14:15,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:15,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:15,083 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:15,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-12 02:14:15,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:14:15,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:14:15,120 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:14:15,120 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: [] [2023-11-12 02:14:15,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-12 02:14:15,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:15,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:15,129 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:15,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-12 02:14:15,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:14:15,132 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:14:15,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:15,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:15,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:15,171 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:15,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:14:15,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:14:15,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-12 02:14:15,361 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:14:15,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-12 02:14:15,369 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:14:15,369 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:14:15,369 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:14:15,369 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:14:15,369 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:14:15,369 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:15,370 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:14:15,370 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:14:15,370 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2023-11-12 02:14:15,370 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:14:15,370 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:14:15,378 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:15,386 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:15,394 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:15,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:15,452 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:14:15,456 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:14:15,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:15,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:15,459 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:15,473 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 [2023-11-12 02:14:15,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-12 02:14:15,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:14:15,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:14:15,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:14:15,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:14:15,490 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:14:15,491 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:14:15,505 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:14:15,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:15,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:15,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:15,517 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:15,525 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 [2023-11-12 02:14:15,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:14:15,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:14:15,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:14:15,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:14:15,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:14:15,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:14:15,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-12 02:14:15,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:14:15,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:15,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:15,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:15,566 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:15,575 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 [2023-11-12 02:14:15,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-12 02:14:15,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:14:15,588 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:14:15,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:14:15,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:14:15,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:14:15,590 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:14:15,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:14:15,601 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:14:15,607 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-12 02:14:15,607 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-12 02:14:15,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:15,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:15,642 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:15,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-12 02:14:15,645 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:14:15,645 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:14:15,645 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:14:15,645 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2023-11-12 02:14:15,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:15,659 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:14:15,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:15,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:14:15,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:15,724 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:14:15,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:15,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:15,764 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 [2023-11-12 02:14:15,766 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) [2023-11-12 02:14:15,806 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. [2023-11-12 02:14:15,809 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 [2023-11-12 02:14:15,813 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) [2023-11-12 02:14:15,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2023-11-12 02:14:15,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-12 02:14:15,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:14:15,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-12 02:14:15,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:14:15,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-12 02:14:15,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:14:15,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2023-11-12 02:14:15,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-12 02:14:15,824 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 9 states and 12 transitions. [2023-11-12 02:14:15,825 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-12 02:14:15,826 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-12 02:14:15,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-11-12 02:14:15,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:14:15,827 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-12 02:14:15,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-11-12 02:14:15,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-12 02:14:15,853 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) [2023-11-12 02:14:15,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2023-11-12 02:14:15,855 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-12 02:14:15,855 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-12 02:14:15,856 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-12 02:14:15,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2023-11-12 02:14:15,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-12 02:14:15,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:14:15,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:14:15,857 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-12 02:14:15,857 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-12 02:14:15,858 INFO L748 eck$LassoCheckResult]: Stem: 78#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 79#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_~i~0#1, main_~j~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 72#L17 assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := 0;main_~j~0#1 := 0; 73#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 74#L21 assume !(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 0;main_~i~0#1 := 1 + main_~i~0#1; 75#L21-2 [2023-11-12 02:14:15,858 INFO L750 eck$LassoCheckResult]: Loop: 75#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 80#L21 assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 75#L21-2 [2023-11-12 02:14:15,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:15,859 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 1 times [2023-11-12 02:14:15,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:15,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759342094] [2023-11-12 02:14:15,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:15,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:15,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:15,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:14:15,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759342094] [2023-11-12 02:14:15,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759342094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:14:15,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:14:15,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:14:15,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189610048] [2023-11-12 02:14:15,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:14:15,923 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-12 02:14:15,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:15,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 2 times [2023-11-12 02:14:15,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:15,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424892686] [2023-11-12 02:14:15,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:15,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:15,930 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:14:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:15,934 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:14:15,959 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:14:15,959 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:14:15,959 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:14:15,960 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:14:15,960 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:14:15,960 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:15,960 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:14:15,960 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:14:15,960 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2023-11-12 02:14:15,960 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:14:15,961 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:14:15,962 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:15,966 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:15,973 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:15,978 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:16,024 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:14:16,025 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:14:16,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:16,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:16,026 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:16,041 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:14:16,042 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:14:16,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-12 02:14:16,068 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:14:16,068 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: [] [2023-11-12 02:14:16,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:16,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:16,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:16,084 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:16,095 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:14:16,095 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:14:16,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-12 02:14:16,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:16,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:16,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:16,138 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:16,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-12 02:14:16,141 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:14:16,141 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:14:16,308 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:14:16,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:16,312 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:14:16,312 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:14:16,313 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:14:16,313 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:14:16,313 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:14:16,313 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:16,313 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:14:16,313 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:14:16,313 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2023-11-12 02:14:16,313 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:14:16,313 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:14:16,315 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:16,330 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:16,335 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:16,344 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:16,400 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:14:16,400 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:14:16,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:16,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:16,402 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:16,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-12 02:14:16,416 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 [2023-11-12 02:14:16,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:14:16,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:14:16,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:14:16,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:14:16,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:14:16,433 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:14:16,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:14:16,443 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:14:16,447 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-12 02:14:16,447 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-12 02:14:16,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:16,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:16,454 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:16,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-12 02:14:16,459 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:14:16,459 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:14:16,459 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:14:16,459 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~m~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-11-12 02:14:16,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:16,469 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:14:16,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:16,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:14:16,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:16,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:16,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-12 02:14:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:16,558 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:14:16,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:16,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:16,566 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 [2023-11-12 02:14:16,566 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-11-12 02:14:16,584 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 5 states. [2023-11-12 02:14:16,585 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 [2023-11-12 02:14:16,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-11-12 02:14:16,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-12 02:14:16,588 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-12 02:14:16,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:14:16,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-12 02:14:16,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:14:16,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2023-11-12 02:14:16,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:14:16,591 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2023-11-12 02:14:16,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-12 02:14:16,595 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2023-11-12 02:14:16,595 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-12 02:14:16,595 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-12 02:14:16,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2023-11-12 02:14:16,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:14:16,603 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-12 02:14:16,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2023-11-12 02:14:16,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-12 02:14:16,604 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) [2023-11-12 02:14:16,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-11-12 02:14:16,605 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-12 02:14:16,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:14:16,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:14:16,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:14:16,608 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand has 3 states, 2 states have (on average 2.5) 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) [2023-11-12 02:14:16,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:14:16,618 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-11-12 02:14:16,618 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2023-11-12 02:14:16,619 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-12 02:14:16,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 14 states and 18 transitions. [2023-11-12 02:14:16,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-12 02:14:16,620 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-12 02:14:16,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2023-11-12 02:14:16,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:14:16,620 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2023-11-12 02:14:16,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2023-11-12 02:14:16,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-11-12 02:14:16,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:14:16,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2023-11-12 02:14:16,622 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-11-12 02:14:16,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:14:16,623 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-11-12 02:14:16,624 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-12 02:14:16,624 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2023-11-12 02:14:16,624 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-12 02:14:16,625 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:14:16,625 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:14:16,625 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1] [2023-11-12 02:14:16,625 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-12 02:14:16,625 INFO L748 eck$LassoCheckResult]: Stem: 167#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 168#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_~i~0#1, main_~j~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 161#L17 assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := 0;main_~j~0#1 := 0; 162#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 169#L21 assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 173#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 172#L21 assume !(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 0;main_~i~0#1 := 1 + main_~i~0#1; 170#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 163#L21 assume !(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 0;main_~i~0#1 := 1 + main_~i~0#1; 164#L21-2 [2023-11-12 02:14:16,626 INFO L750 eck$LassoCheckResult]: Loop: 164#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 171#L21 assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 164#L21-2 [2023-11-12 02:14:16,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:16,626 INFO L85 PathProgramCache]: Analyzing trace with hash -446365265, now seen corresponding path program 1 times [2023-11-12 02:14:16,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:16,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993570527] [2023-11-12 02:14:16,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:16,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:16,682 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 02:14:16,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:14:16,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993570527] [2023-11-12 02:14:16,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993570527] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:14:16,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565847897] [2023-11-12 02:14:16,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:16,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:14:16,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:16,684 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:14:16,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-12 02:14:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:16,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:14:16,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:16,790 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 02:14:16,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:14:16,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565847897] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:14:16,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:14:16,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-12 02:14:16,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213415406] [2023-11-12 02:14:16,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:14:16,793 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-12 02:14:16,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:16,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 3 times [2023-11-12 02:14:16,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:16,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624075688] [2023-11-12 02:14:16,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:16,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:16,808 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:14:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:16,814 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:14:16,846 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:14:16,846 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:14:16,846 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:14:16,846 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:14:16,847 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:14:16,847 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:16,847 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:14:16,847 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:14:16,847 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2023-11-12 02:14:16,847 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:14:16,847 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:14:16,849 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:16,857 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:16,860 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:16,869 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:16,922 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:14:16,922 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:14:16,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:16,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:16,923 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:16,927 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:14:16,927 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:14:16,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-12 02:14:16,945 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:14:16,945 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0#1=1, ULTIMATE.start_main_~i~0#1=0} Honda state: {ULTIMATE.start_main_~n~0#1=1, ULTIMATE.start_main_~i~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:14:16,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:16,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:16,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:16,950 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:16,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-12 02:14:16,957 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:14:16,957 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:14:16,984 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:14:16,984 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:14:16,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:16,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:16,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:16,997 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:17,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:14:17,005 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:14:17,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-12 02:14:17,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:17,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:17,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:17,038 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:17,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:14:17,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:14:17,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-12 02:14:17,222 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:14:17,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:17,225 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:14:17,226 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:14:17,226 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:14:17,226 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:14:17,226 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:14:17,226 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:17,226 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:14:17,226 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:14:17,226 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2023-11-12 02:14:17,226 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:14:17,226 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:14:17,228 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:17,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:17,238 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:17,250 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:17,295 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:14:17,296 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:14:17,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:17,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:17,297 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:17,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-12 02:14:17,311 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 [2023-11-12 02:14:17,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:14:17,324 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:14:17,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:14:17,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:14:17,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:14:17,325 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:14:17,325 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:14:17,334 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:14:17,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:17,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:17,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:17,340 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:17,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-12 02:14:17,349 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 [2023-11-12 02:14:17,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:14:17,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:14:17,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:14:17,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:14:17,367 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:14:17,367 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:14:17,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:14:17,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:17,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:17,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:17,401 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:17,414 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 [2023-11-12 02:14:17,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:14:17,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:14:17,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:14:17,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:14:17,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:14:17,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:14:17,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:14:17,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-12 02:14:17,451 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:14:17,457 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-12 02:14:17,457 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-12 02:14:17,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:17,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:17,458 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:17,464 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:14:17,465 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:14:17,465 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:14:17,465 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2023-11-12 02:14:17,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-12 02:14:17,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:17,477 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:14:17,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:17,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:14:17,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:17,523 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:14:17,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:17,528 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 [2023-11-12 02:14:17,528 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2023-11-12 02:14:17,537 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 21 transitions. Complement of second has 5 states. [2023-11-12 02:14:17,537 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 [2023-11-12 02:14:17,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2023-11-12 02:14:17,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-12 02:14:17,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-12 02:14:17,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:14:17,539 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-12 02:14:17,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:17,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:14:17,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:17,583 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:14:17,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:17,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:17,587 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-12 02:14:17,588 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2023-11-12 02:14:17,601 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 21 transitions. Complement of second has 5 states. [2023-11-12 02:14:17,602 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 [2023-11-12 02:14:17,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2023-11-12 02:14:17,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-12 02:14:17,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-12 02:14:17,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:14:17,606 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-12 02:14:17,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:17,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:14:17,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:17,652 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:14:17,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:17,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:17,656 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-12 02:14:17,656 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2023-11-12 02:14:17,664 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 24 transitions. Complement of second has 4 states. [2023-11-12 02:14:17,665 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 [2023-11-12 02:14:17,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2023-11-12 02:14:17,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-12 02:14:17,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-12 02:14:17,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:14:17,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 2 letters. [2023-11-12 02:14:17,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:14:17,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-12 02:14:17,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:14:17,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2023-11-12 02:14:17,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-12 02:14:17,669 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 20 transitions. [2023-11-12 02:14:17,669 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-12 02:14:17,670 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-12 02:14:17,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2023-11-12 02:14:17,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:14:17,670 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-12 02:14:17,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2023-11-12 02:14:17,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 8. [2023-11-12 02:14:17,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 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) [2023-11-12 02:14:17,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2023-11-12 02:14:17,672 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-12 02:14:17,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:14:17,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:14:17,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:14:17,673 INFO L87 Difference]: Start difference. First operand 8 states and 10 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) 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) [2023-11-12 02:14:17,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:14:17,683 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2023-11-12 02:14:17,683 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2023-11-12 02:14:17,684 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-12 02:14:17,684 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 10 transitions. [2023-11-12 02:14:17,684 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-12 02:14:17,684 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-12 02:14:17,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2023-11-12 02:14:17,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:14:17,685 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-11-12 02:14:17,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2023-11-12 02:14:17,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2023-11-12 02:14:17,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 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) [2023-11-12 02:14:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2023-11-12 02:14:17,686 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2023-11-12 02:14:17,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:14:17,688 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2023-11-12 02:14:17,688 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-12 02:14:17,688 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2023-11-12 02:14:17,688 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-12 02:14:17,689 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:14:17,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:14:17,689 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-12 02:14:17,689 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-12 02:14:17,689 INFO L748 eck$LassoCheckResult]: Stem: 394#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 395#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_~i~0#1, main_~j~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 389#L17 assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := 0;main_~j~0#1 := 0; 390#L21-2 [2023-11-12 02:14:17,690 INFO L750 eck$LassoCheckResult]: Loop: 390#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 392#L21 assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 393#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 391#L21 assume !(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 0;main_~i~0#1 := 1 + main_~i~0#1; 390#L21-2 [2023-11-12 02:14:17,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:17,690 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2023-11-12 02:14:17,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:17,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587299405] [2023-11-12 02:14:17,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:17,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:17,695 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:14:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:17,699 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:14:17,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:17,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1357385, now seen corresponding path program 1 times [2023-11-12 02:14:17,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:17,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008530629] [2023-11-12 02:14:17,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:17,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:17,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:14:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:17,710 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:14:17,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:17,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1805120106, now seen corresponding path program 2 times [2023-11-12 02:14:17,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:17,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250887188] [2023-11-12 02:14:17,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:17,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:17,718 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:14:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:17,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:14:17,771 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:14:17,771 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:14:17,771 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:14:17,772 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:14:17,772 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:14:17,772 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:17,772 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:14:17,772 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:14:17,772 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2023-11-12 02:14:17,772 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:14:17,772 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:14:17,774 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:17,780 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:17,784 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:17,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:17,842 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:14:17,842 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:14:17,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:17,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:17,844 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:17,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-12 02:14:17,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:14:17,847 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:14:17,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:17,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:17,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:17,891 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:17,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:14:17,901 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:14:17,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-12 02:14:18,089 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:14:18,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:18,099 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:14:18,099 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:14:18,099 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:14:18,099 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:14:18,099 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:14:18,099 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:18,099 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:14:18,099 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:14:18,099 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2023-11-12 02:14:18,099 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:14:18,099 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:14:18,100 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:18,107 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:18,111 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:18,118 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:14:18,173 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:14:18,173 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:14:18,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:18,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:18,176 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:18,189 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 [2023-11-12 02:14:18,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:14:18,202 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:14:18,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:14:18,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:14:18,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:14:18,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-12 02:14:18,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:14:18,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:14:18,214 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:14:18,219 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-12 02:14:18,219 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-12 02:14:18,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:14:18,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:18,223 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:18,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-12 02:14:18,226 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:14:18,227 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:14:18,227 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:14:18,227 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2023-11-12 02:14:18,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:18,237 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:14:18,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:18,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:14:18,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:18,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:14:18,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:18,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:14:18,332 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 [2023-11-12 02:14:18,333 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-11-12 02:14:18,358 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 12 states and 15 transitions. Complement of second has 4 states. [2023-11-12 02:14:18,358 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 [2023-11-12 02:14:18,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-11-12 02:14:18,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-12 02:14:18,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-12 02:14:18,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:14:18,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 4 letters. [2023-11-12 02:14:18,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:14:18,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 8 letters. [2023-11-12 02:14:18,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:14:18,364 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2023-11-12 02:14:18,366 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-12 02:14:18,367 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2023-11-12 02:14:18,367 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-12 02:14:18,367 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-12 02:14:18,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-12 02:14:18,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:14:18,367 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:14:18,367 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:14:18,368 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:14:18,368 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-12 02:14:18,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:14:18,368 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-12 02:14:18,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-12 02:14:18,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 02:14:18 BoogieIcfgContainer [2023-11-12 02:14:18,388 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-12 02:14:18,389 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:14:18,390 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:14:18,390 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:14:18,390 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:14:14" (3/4) ... [2023-11-12 02:14:18,392 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:14:18,393 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:14:18,395 INFO L158 Benchmark]: Toolchain (without parser) took 4460.89ms. Allocated memory is still 163.6MB. Free memory was 126.0MB in the beginning and 64.1MB in the end (delta: 61.9MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. [2023-11-12 02:14:18,395 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:14:18,396 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.40ms. Allocated memory is still 163.6MB. Free memory was 126.0MB in the beginning and 127.0MB in the end (delta: -1.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:14:18,396 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.64ms. Allocated memory is still 163.6MB. Free memory was 127.0MB in the beginning and 126.2MB in the end (delta: 811.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:14:18,397 INFO L158 Benchmark]: Boogie Preprocessor took 21.18ms. Allocated memory is still 163.6MB. Free memory was 126.2MB in the beginning and 124.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:14:18,398 INFO L158 Benchmark]: RCFGBuilder took 330.34ms. Allocated memory is still 163.6MB. Free memory was 124.9MB in the beginning and 115.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:14:18,398 INFO L158 Benchmark]: BuchiAutomizer took 3810.42ms. Allocated memory is still 163.6MB. Free memory was 115.7MB in the beginning and 64.1MB in the end (delta: 51.7MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2023-11-12 02:14:18,398 INFO L158 Benchmark]: Witness Printer took 4.03ms. Allocated memory is still 163.6MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:14:18,402 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.40ms. Allocated memory is still 163.6MB. Free memory was 126.0MB in the beginning and 127.0MB in the end (delta: -1.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.64ms. Allocated memory is still 163.6MB. Free memory was 127.0MB in the beginning and 126.2MB in the end (delta: 811.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.18ms. Allocated memory is still 163.6MB. Free memory was 126.2MB in the beginning and 124.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 330.34ms. Allocated memory is still 163.6MB. Free memory was 124.9MB in the beginning and 115.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3810.42ms. Allocated memory is still 163.6MB. Free memory was 115.7MB in the beginning and 64.1MB in the end (delta: 51.7MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. * Witness Printer took 4.03ms. Allocated memory is still 163.6MB. Free memory is still 64.1MB. 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 (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((-1 * j) + m) and consists of 4 locations. One deterministic module has affine ranking function ((-1 * j) + m) and consists of 3 locations. One deterministic module has affine ranking function ((-1 * i) + n) and consists of 3 locations. One nondeterministic module has affine ranking function ((-1 * j) + m) and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 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 [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 52 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax167 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf93 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-12 02:14:18,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:18,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-12 02:14:18,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-12 02:14:19,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88036737-d0b7-48d4-b734-a339414d761d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE