./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 a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/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_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX --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 0.2.5-dev-a016563 [2024-11-08 18:37:29,990 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:37:30,096 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-08 18:37:30,106 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:37:30,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:37:30,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:37:30,178 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:37:30,178 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:37:30,179 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:37:30,179 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:37:30,180 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:37:30,181 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:37:30,183 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:37:30,187 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-08 18:37:30,188 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-08 18:37:30,188 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-08 18:37:30,189 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-08 18:37:30,189 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-08 18:37:30,189 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-08 18:37:30,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:37:30,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-08 18:37:30,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:37:30,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:37:30,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-08 18:37:30,196 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-08 18:37:30,197 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-08 18:37:30,197 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:37:30,198 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:37:30,198 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:37:30,199 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-08 18:37:30,203 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:37:30,204 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:37:30,204 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:37:30,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:37:30,205 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:37:30,206 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-08 18:37:30,206 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_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59f8de3095dec84b471ea17a2f8054509a628ca6c3fce9f023768548ca2b0891 [2024-11-08 18:37:30,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:37:30,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:37:30,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:37:30,607 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:37:30,608 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:37:30,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c Unable to find full path for "g++" [2024-11-08 18:37:33,199 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:37:33,442 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:37:33,442 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2024-11-08 18:37:33,453 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/data/89dc77a6a/c4153845ade242c282f54cd639c32d73/FLAG678c52580 [2024-11-08 18:37:33,476 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/data/89dc77a6a/c4153845ade242c282f54cd639c32d73 [2024-11-08 18:37:33,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:37:33,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:37:33,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:37:33,484 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:37:33,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:37:33,492 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:37:33" (1/1) ... [2024-11-08 18:37:33,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db08781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:33, skipping insertion in model container [2024-11-08 18:37:33,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:37:33" (1/1) ... [2024-11-08 18:37:33,520 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:37:33,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:37:33,857 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:37:33,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:37:33,900 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:37:33,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:33 WrapperNode [2024-11-08 18:37:33,901 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:37:33,903 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:37:33,903 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:37:33,903 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:37:33,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:33" (1/1) ... [2024-11-08 18:37:33,922 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:33" (1/1) ... [2024-11-08 18:37:33,947 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2024-11-08 18:37:33,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:37:33,948 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:37:33,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:37:33,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:37:33,964 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:33" (1/1) ... [2024-11-08 18:37:33,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:33" (1/1) ... [2024-11-08 18:37:33,966 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:33" (1/1) ... [2024-11-08 18:37:33,974 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-08 18:37:33,974 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:33" (1/1) ... [2024-11-08 18:37:33,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:33" (1/1) ... [2024-11-08 18:37:33,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:33" (1/1) ... [2024-11-08 18:37:33,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:33" (1/1) ... [2024-11-08 18:37:33,984 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:33" (1/1) ... [2024-11-08 18:37:33,985 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:33" (1/1) ... [2024-11-08 18:37:33,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:37:33,992 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:37:33,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:37:33,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:37:33,998 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:33" (1/1) ... [2024-11-08 18:37:34,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:34,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:34,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:34,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-08 18:37:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:37:34,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:37:34,203 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:37:34,205 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:37:34,287 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-08 18:37:34,287 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:37:34,302 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:37:34,302 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:37:34,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:37:34 BoogieIcfgContainer [2024-11-08 18:37:34,303 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:37:34,305 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-08 18:37:34,305 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-08 18:37:34,310 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-08 18:37:34,311 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 18:37:34,312 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.11 06:37:33" (1/3) ... [2024-11-08 18:37:34,313 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75c3c596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 06:37:34, skipping insertion in model container [2024-11-08 18:37:34,313 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 18:37:34,314 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:33" (2/3) ... [2024-11-08 18:37:34,314 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75c3c596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 06:37:34, skipping insertion in model container [2024-11-08 18:37:34,315 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 18:37:34,315 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:37:34" (3/3) ... [2024-11-08 18:37:34,320 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2024-11-08 18:37:34,398 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-08 18:37:34,398 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-08 18:37:34,398 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-08 18:37:34,398 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-08 18:37:34,399 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-08 18:37:34,399 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-08 18:37:34,399 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-08 18:37:34,399 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-08 18:37:34,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:37:34,427 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 18:37:34,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:37:34,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:37:34,434 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-08 18:37:34,435 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-08 18:37:34,435 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-08 18:37:34,435 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:37:34,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 18:37:34,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:37:34,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:37:34,438 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-08 18:37:34,438 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-08 18:37:34,448 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L17true assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := 0;main_~j~0#1 := 0; 7#L21-2true [2024-11-08 18:37:34,448 INFO L747 eck$LassoCheckResult]: Loop: 7#L21-2true assume main_~i~0#1 < main_~n~0#1; 8#L20-1true 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 [2024-11-08 18:37:34,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:34,459 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-08 18:37:34,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:34,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757813553] [2024-11-08 18:37:34,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:34,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:34,578 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:37:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:34,606 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:37:34,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:34,610 INFO L85 PathProgramCache]: Analyzing trace with hash 38891, now seen corresponding path program 1 times [2024-11-08 18:37:34,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:34,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780576243] [2024-11-08 18:37:34,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:34,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:34,620 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:37:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:34,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:37:34,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:34,629 INFO L85 PathProgramCache]: Analyzing trace with hash 889508778, now seen corresponding path program 1 times [2024-11-08 18:37:34,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:34,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720442398] [2024-11-08 18:37:34,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:34,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:34,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:37:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:34,655 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:37:34,741 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 18:37:34,742 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 18:37:34,742 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 18:37:34,742 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 18:37:34,742 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-08 18:37:34,743 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:34,743 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 18:37:34,743 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 18:37:34,743 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2024-11-08 18:37:34,743 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 18:37:34,744 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 18:37:34,789 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:34,806 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:34,812 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:34,824 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:34,937 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 18:37:34,937 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-08 18:37:34,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:34,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:34,943 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:34,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-08 18:37:34,947 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 18:37:34,948 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 18:37:34,984 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-08 18:37:34,985 INFO L401 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: [] [2024-11-08 18:37:35,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-08 18:37:35,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:35,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:35,015 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:35,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-08 18:37:35,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 18:37:35,019 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 18:37:35,053 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-08 18:37:35,053 INFO L401 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: [] [2024-11-08 18:37:35,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-08 18:37:35,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:35,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:35,081 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:35,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-08 18:37:35,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 18:37:35,085 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 18:37:35,123 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-08 18:37:35,123 INFO L401 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: [] [2024-11-08 18:37:35,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-08 18:37:35,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:35,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:35,147 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:35,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-08 18:37:35,150 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 18:37:35,150 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 18:37:35,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-08 18:37:35,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:35,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:35,192 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:35,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-08 18:37:35,194 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-08 18:37:35,194 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 18:37:35,361 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-08 18:37:35,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:35,365 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 18:37:35,365 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 18:37:35,365 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 18:37:35,365 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 18:37:35,365 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 18:37:35,366 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:35,366 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 18:37:35,366 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 18:37:35,366 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2024-11-08 18:37:35,366 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 18:37:35,366 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 18:37:35,369 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:35,381 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:35,389 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:35,400 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:35,495 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 18:37:35,501 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 18:37:35,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:35,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:35,505 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:35,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-08 18:37:35,510 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 [2024-11-08 18:37:35,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:37:35,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:37:35,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:37:35,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:37:35,537 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 18:37:35,537 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 18:37:35,554 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:37:35,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:35,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:35,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:35,580 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:35,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-08 18:37:35,585 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-08 18:37:35,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:37:35,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:37:35,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:37:35,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:37:35,609 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 18:37:35,609 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 18:37:35,621 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:37:35,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-08 18:37:35,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:35,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:35,646 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:35,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-08 18:37:35,649 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 [2024-11-08 18:37:35,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:37:35,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:37:35,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:37:35,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:37:35,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:37:35,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:37:35,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:37:35,668 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:37:35,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:35,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:35,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:35,686 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:35,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-08 18:37:35,688 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-08 18:37:35,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:37:35,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:37:35,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:37:35,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:37:35,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:37:35,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:37:35,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:37:35,709 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 18:37:35,717 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-08 18:37:35,718 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-08 18:37:35,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:35,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:35,728 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:35,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-08 18:37:35,740 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 18:37:35,741 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-08 18:37:35,741 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 18:37:35,742 INFO L476 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 [] [2024-11-08 18:37:35,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-08 18:37:35,765 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-08 18:37:35,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:35,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:37:35,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:35,840 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:37:35,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:35,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:37:35,900 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 [2024-11-08 18:37:35,904 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:37:35,947 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 34 transitions. Complement of second has 5 states. [2024-11-08 18:37:35,951 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 [2024-11-08 18:37:35,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:37:35,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2024-11-08 18:37:35,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 3 letters. Loop has 3 letters. [2024-11-08 18:37:35,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:37:35,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-08 18:37:35,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:37:35,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-08 18:37:35,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:37:35,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 34 transitions. [2024-11-08 18:37:35,973 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 18:37:35,979 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 12 states and 15 transitions. [2024-11-08 18:37:35,980 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-08 18:37:35,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-08 18:37:35,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2024-11-08 18:37:35,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-08 18:37:35,982 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-11-08 18:37:36,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2024-11-08 18:37:36,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-08 18:37:36,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:37:36,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2024-11-08 18:37:36,014 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-11-08 18:37:36,014 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-11-08 18:37:36,014 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-08 18:37:36,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2024-11-08 18:37:36,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 18:37:36,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:37:36,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:37:36,016 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-08 18:37:36,016 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-08 18:37:36,016 INFO L745 eck$LassoCheckResult]: Stem: 81#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 82#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; 75#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; 76#L21-2 assume main_~i~0#1 < main_~n~0#1; 85#L20-1 assume !!(main_~i~0#1 < main_~n~0#1); 77#L21 assume !(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 0;main_~i~0#1 := 1 + main_~i~0#1; 78#L21-2 [2024-11-08 18:37:36,017 INFO L747 eck$LassoCheckResult]: Loop: 78#L21-2 assume main_~i~0#1 < main_~n~0#1; 83#L20-1 assume !!(main_~i~0#1 < main_~n~0#1); 86#L21 assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 78#L21-2 [2024-11-08 18:37:36,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:36,017 INFO L85 PathProgramCache]: Analyzing trace with hash 889508780, now seen corresponding path program 1 times [2024-11-08 18:37:36,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:36,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379578534] [2024-11-08 18:37:36,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:36,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:36,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:37:36,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:37:36,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379578534] [2024-11-08 18:37:36,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379578534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:36,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:37:36,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:37:36,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749719049] [2024-11-08 18:37:36,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:36,140 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-08 18:37:36,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:36,141 INFO L85 PathProgramCache]: Analyzing trace with hash 38891, now seen corresponding path program 2 times [2024-11-08 18:37:36,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:36,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319939605] [2024-11-08 18:37:36,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:36,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:36,152 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:37:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:36,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:37:36,213 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 18:37:36,213 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 18:37:36,213 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 18:37:36,213 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 18:37:36,213 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-08 18:37:36,214 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:36,214 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 18:37:36,214 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 18:37:36,214 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2024-11-08 18:37:36,214 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 18:37:36,214 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 18:37:36,216 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:36,228 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:36,238 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:36,243 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:36,304 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 18:37:36,304 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-08 18:37:36,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:36,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:36,307 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:36,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-08 18:37:36,312 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 18:37:36,312 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 18:37:36,344 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-08 18:37:36,345 INFO L401 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: [] [2024-11-08 18:37:36,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-08 18:37:36,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:36,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:36,371 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:36,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-08 18:37:36,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 18:37:36,377 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 18:37:36,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-08 18:37:36,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:36,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:36,423 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:36,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-08 18:37:36,427 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-08 18:37:36,427 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 18:37:36,603 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-08 18:37:36,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:36,606 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 18:37:36,606 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 18:37:36,607 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 18:37:36,607 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 18:37:36,607 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 18:37:36,607 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:36,607 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 18:37:36,607 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 18:37:36,607 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2024-11-08 18:37:36,607 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 18:37:36,607 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 18:37:36,609 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:36,625 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:36,635 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:36,643 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:36,713 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 18:37:36,713 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 18:37:36,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:36,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:36,715 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:36,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-08 18:37:36,717 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 [2024-11-08 18:37:36,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:37:36,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:37:36,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:37:36,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:37:36,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:37:36,733 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:37:36,733 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:37:36,738 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 18:37:36,744 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-08 18:37:36,744 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-08 18:37:36,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:36,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:36,748 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:36,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-08 18:37:36,751 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 18:37:36,751 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-08 18:37:36,751 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 18:37:36,752 INFO L476 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 [] [2024-11-08 18:37:36,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-08 18:37:36,777 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-08 18:37:36,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:36,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:37:36,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:36,843 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:37:36,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:36,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:37:36,852 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 [2024-11-08 18:37:36,853 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 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) [2024-11-08 18:37:36,866 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. 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 18 states and 23 transitions. Complement of second has 5 states. [2024-11-08 18:37:36,867 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 [2024-11-08 18:37:36,868 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) [2024-11-08 18:37:36,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2024-11-08 18:37:36,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-08 18:37:36,869 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:37:36,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 3 letters. [2024-11-08 18:37:36,869 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:37:36,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 6 letters. [2024-11-08 18:37:36,870 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:37:36,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2024-11-08 18:37:36,871 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 18:37:36,872 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2024-11-08 18:37:36,872 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-08 18:37:36,872 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-08 18:37:36,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2024-11-08 18:37:36,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-08 18:37:36,873 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2024-11-08 18:37:36,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2024-11-08 18:37:36,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-08 18:37:36,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 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) [2024-11-08 18:37:36,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2024-11-08 18:37:36,876 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2024-11-08 18:37:36,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:37:36,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:37:36,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:37:36,881 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:37:36,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:36,895 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2024-11-08 18:37:36,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 26 transitions. [2024-11-08 18:37:36,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 18:37:36,896 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 20 states and 24 transitions. [2024-11-08 18:37:36,897 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-08 18:37:36,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-08 18:37:36,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2024-11-08 18:37:36,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-08 18:37:36,898 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 24 transitions. [2024-11-08 18:37:36,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2024-11-08 18:37:36,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2024-11-08 18:37:36,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:37:36,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2024-11-08 18:37:36,901 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 22 transitions. [2024-11-08 18:37:36,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:37:36,902 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2024-11-08 18:37:36,903 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-08 18:37:36,903 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 22 transitions. [2024-11-08 18:37:36,904 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 18:37:36,904 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:37:36,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:37:36,905 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1] [2024-11-08 18:37:36,905 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-08 18:37:36,905 INFO L745 eck$LassoCheckResult]: Stem: 196#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 197#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; 190#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; 191#L21-2 assume main_~i~0#1 < main_~n~0#1; 198#L20-1 assume !!(main_~i~0#1 < main_~n~0#1); 194#L21 assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 195#L21-2 assume main_~i~0#1 < main_~n~0#1; 199#L20-1 assume !!(main_~i~0#1 < main_~n~0#1); 192#L21 assume !(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 0;main_~i~0#1 := 1 + main_~i~0#1; 193#L21-2 assume main_~i~0#1 < main_~n~0#1; 204#L20-1 assume !!(main_~i~0#1 < main_~n~0#1); 203#L21 assume !(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 0;main_~i~0#1 := 1 + main_~i~0#1; 201#L21-2 [2024-11-08 18:37:36,906 INFO L747 eck$LassoCheckResult]: Loop: 201#L21-2 assume main_~i~0#1 < main_~n~0#1; 202#L20-1 assume !!(main_~i~0#1 < main_~n~0#1); 200#L21 assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 201#L21-2 [2024-11-08 18:37:36,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:36,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1441241450, now seen corresponding path program 1 times [2024-11-08 18:37:36,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:36,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70328769] [2024-11-08 18:37:36,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:36,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:37,006 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 18:37:37,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:37:37,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70328769] [2024-11-08 18:37:37,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70328769] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:37:37,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491176898] [2024-11-08 18:37:37,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:37,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:37:37,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:37,009 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:37:37,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-08 18:37:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:37,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:37:37,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 18:37:37,137 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:37:37,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491176898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:37:37,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:37:37,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-08 18:37:37,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254584561] [2024-11-08 18:37:37,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:37,138 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-08 18:37:37,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:37,139 INFO L85 PathProgramCache]: Analyzing trace with hash 38891, now seen corresponding path program 3 times [2024-11-08 18:37:37,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:37,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746782860] [2024-11-08 18:37:37,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:37,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:37,146 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:37:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:37,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:37:37,191 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 18:37:37,191 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 18:37:37,191 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 18:37:37,191 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 18:37:37,191 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-08 18:37:37,192 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:37,192 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 18:37:37,192 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 18:37:37,192 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2024-11-08 18:37:37,192 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 18:37:37,192 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 18:37:37,194 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:37,199 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:37,203 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:37,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:37,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:37,320 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 18:37:37,320 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-08 18:37:37,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:37,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:37,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-08 18:37:37,323 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:37,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-08 18:37:37,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 18:37:37,326 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 18:37:37,353 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-08 18:37:37,353 INFO L401 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: [] [2024-11-08 18:37:37,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-08 18:37:37,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:37,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:37,374 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:37,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-08 18:37:37,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 18:37:37,377 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 18:37:37,403 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-08 18:37:37,403 INFO L401 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: [] [2024-11-08 18:37:37,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-08 18:37:37,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:37,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:37,424 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:37,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-08 18:37:37,428 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 18:37:37,428 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 18:37:37,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-08 18:37:37,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:37,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:37,466 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:37,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-08 18:37:37,469 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-08 18:37:37,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 18:37:37,619 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-08 18:37:37,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:37,622 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 18:37:37,622 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 18:37:37,622 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 18:37:37,622 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 18:37:37,622 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 18:37:37,622 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:37,622 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 18:37:37,622 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 18:37:37,623 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2024-11-08 18:37:37,623 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 18:37:37,623 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 18:37:37,624 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:37,627 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:37,630 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:37,641 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:37,683 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 18:37:37,683 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 18:37:37,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:37,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:37,685 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:37,694 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 [2024-11-08 18:37:37,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-08 18:37:37,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:37:37,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:37:37,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:37:37,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:37:37,715 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 18:37:37,716 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 18:37:37,720 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:37:37,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:37,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:37,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:37,740 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:37,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-08 18:37:37,743 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 [2024-11-08 18:37:37,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:37:37,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:37:37,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:37:37,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:37:37,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:37:37,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:37:37,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:37:37,761 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:37:37,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-08 18:37:37,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:37,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:37,781 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:37,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-08 18:37:37,783 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 [2024-11-08 18:37:37,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:37:37,797 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:37:37,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:37:37,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:37:37,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:37:37,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:37:37,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:37:37,802 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 18:37:37,808 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-08 18:37:37,808 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-08 18:37:37,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:37,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:37,810 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:37,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-08 18:37:37,812 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 18:37:37,812 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-08 18:37:37,813 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 18:37:37,813 INFO L476 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 [] [2024-11-08 18:37:37,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:37,832 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-08 18:37:37,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:37,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:37:37,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:37,894 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:37:37,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:37,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:37:37,900 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 [2024-11-08 18:37:37,901 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:37:37,915 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 28 transitions. Complement of second has 5 states. [2024-11-08 18:37:37,918 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 [2024-11-08 18:37:37,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:37:37,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2024-11-08 18:37:37,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 12 letters. Loop has 3 letters. [2024-11-08 18:37:37,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:37:37,919 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-08 18:37:37,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:37,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:37:37,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:37,987 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:37:37,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:37,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:37:37,997 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 [2024-11-08 18:37:37,997 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:37:38,005 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 28 transitions. Complement of second has 5 states. [2024-11-08 18:37:38,006 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 [2024-11-08 18:37:38,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:37:38,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2024-11-08 18:37:38,007 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 12 letters. Loop has 3 letters. [2024-11-08 18:37:38,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:37:38,007 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-08 18:37:38,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:38,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:37:38,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:38,058 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:37:38,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:38,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:37:38,065 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 [2024-11-08 18:37:38,065 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:37:38,076 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 32 transitions. Complement of second has 4 states. [2024-11-08 18:37:38,077 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 [2024-11-08 18:37:38,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:37:38,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2024-11-08 18:37:38,078 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 3 letters. [2024-11-08 18:37:38,078 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:37:38,078 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 15 letters. Loop has 3 letters. [2024-11-08 18:37:38,078 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:37:38,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 6 letters. [2024-11-08 18:37:38,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:37:38,079 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2024-11-08 18:37:38,080 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-08 18:37:38,081 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 21 states and 26 transitions. [2024-11-08 18:37:38,081 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-08 18:37:38,081 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-08 18:37:38,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2024-11-08 18:37:38,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-08 18:37:38,081 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 26 transitions. [2024-11-08 18:37:38,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2024-11-08 18:37:38,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 10. [2024-11-08 18:37:38,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 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) [2024-11-08 18:37:38,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2024-11-08 18:37:38,083 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2024-11-08 18:37:38,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:37:38,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:37:38,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:37:38,084 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:37:38,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:38,093 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2024-11-08 18:37:38,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2024-11-08 18:37:38,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-08 18:37:38,094 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 13 transitions. [2024-11-08 18:37:38,094 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-08 18:37:38,095 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-11-08 18:37:38,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2024-11-08 18:37:38,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-08 18:37:38,095 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-11-08 18:37:38,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2024-11-08 18:37:38,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 9. [2024-11-08 18:37:38,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 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) [2024-11-08 18:37:38,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2024-11-08 18:37:38,096 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-11-08 18:37:38,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:37:38,097 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-11-08 18:37:38,097 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-08 18:37:38,097 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2024-11-08 18:37:38,098 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-08 18:37:38,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:37:38,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:37:38,099 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-08 18:37:38,099 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2024-11-08 18:37:38,099 INFO L745 eck$LassoCheckResult]: Stem: 501#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 502#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; 496#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; 497#L21-2 [2024-11-08 18:37:38,099 INFO L747 eck$LassoCheckResult]: Loop: 497#L21-2 assume main_~i~0#1 < main_~n~0#1; 503#L20-1 assume !!(main_~i~0#1 < main_~n~0#1); 499#L21 assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 500#L21-2 assume main_~i~0#1 < main_~n~0#1; 504#L20-1 assume !!(main_~i~0#1 < main_~n~0#1); 498#L21 assume !(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 0;main_~i~0#1 := 1 + main_~i~0#1; 497#L21-2 [2024-11-08 18:37:38,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:38,100 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2024-11-08 18:37:38,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:38,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723737716] [2024-11-08 18:37:38,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:38,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:38,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:37:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:38,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:37:38,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:38,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1158610883, now seen corresponding path program 1 times [2024-11-08 18:37:38,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:38,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19645576] [2024-11-08 18:37:38,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:38,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:38,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:37:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:38,118 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:37:38,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:38,119 INFO L85 PathProgramCache]: Analyzing trace with hash -592201820, now seen corresponding path program 2 times [2024-11-08 18:37:38,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:38,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188037971] [2024-11-08 18:37:38,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:38,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:38,129 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:37:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:38,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:37:38,201 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 18:37:38,201 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 18:37:38,202 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 18:37:38,202 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 18:37:38,202 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-08 18:37:38,202 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:38,202 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 18:37:38,202 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 18:37:38,202 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2024-11-08 18:37:38,202 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 18:37:38,202 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 18:37:38,204 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:38,211 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:38,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:38,222 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:38,286 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 18:37:38,287 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-08 18:37:38,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:38,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:38,289 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:38,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-08 18:37:38,292 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 18:37:38,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 18:37:38,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:38,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:38,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:38,329 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:38,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-08 18:37:38,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-08 18:37:38,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 18:37:38,496 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-08 18:37:38,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:38,499 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 18:37:38,499 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 18:37:38,500 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 18:37:38,500 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 18:37:38,500 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 18:37:38,500 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:38,500 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 18:37:38,500 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 18:37:38,500 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2024-11-08 18:37:38,500 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 18:37:38,500 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 18:37:38,501 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:38,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:38,513 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:38,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:37:38,579 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 18:37:38,579 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 18:37:38,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:38,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:38,581 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:38,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-08 18:37:38,583 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 [2024-11-08 18:37:38,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:37:38,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:37:38,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:37:38,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:37:38,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:37:38,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:37:38,599 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:37:38,601 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 18:37:38,610 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-08 18:37:38,610 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-08 18:37:38,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:37:38,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:38,613 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:38,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-08 18:37:38,616 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 18:37:38,616 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-08 18:37:38,616 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 18:37:38,616 INFO L476 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 [] [2024-11-08 18:37:38,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:38,635 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-08 18:37:38,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:38,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:37:38,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:37:38,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:37:38,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:37:38,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:37:38,721 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 [2024-11-08 18:37:38,721 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2024-11-08 18:37:38,742 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 19 transitions. Complement of second has 4 states. [2024-11-08 18:37:38,742 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 [2024-11-08 18:37:38,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2024-11-08 18:37:38,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-08 18:37:38,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-08 18:37:38,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:37:38,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 6 letters. [2024-11-08 18:37:38,744 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:37:38,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 12 letters. [2024-11-08 18:37:38,744 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:37:38,744 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2024-11-08 18:37:38,745 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-08 18:37:38,745 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2024-11-08 18:37:38,745 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-08 18:37:38,745 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-08 18:37:38,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-08 18:37:38,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 18:37:38,746 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:37:38,746 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:37:38,746 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:37:38,746 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-08 18:37:38,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-08 18:37:38,746 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-08 18:37:38,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-08 18:37:38,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.11 06:37:38 BoogieIcfgContainer [2024-11-08 18:37:38,754 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-08 18:37:38,754 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:37:38,754 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:37:38,754 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:37:38,755 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:37:34" (3/4) ... [2024-11-08 18:37:38,757 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:37:38,758 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:37:38,758 INFO L158 Benchmark]: Toolchain (without parser) took 5276.64ms. Allocated memory is still 159.4MB. Free memory was 122.5MB in the beginning and 68.9MB in the end (delta: 53.6MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2024-11-08 18:37:38,758 INFO L158 Benchmark]: CDTParser took 0.84ms. Allocated memory is still 123.7MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:37:38,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 418.27ms. Allocated memory is still 159.4MB. Free memory was 122.0MB in the beginning and 110.9MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 18:37:38,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.17ms. Allocated memory is still 159.4MB. Free memory was 110.9MB in the beginning and 109.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:37:38,759 INFO L158 Benchmark]: Boogie Preprocessor took 42.94ms. Allocated memory is still 159.4MB. Free memory was 109.3MB in the beginning and 108.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:37:38,759 INFO L158 Benchmark]: RCFGBuilder took 311.14ms. Allocated memory is still 159.4MB. Free memory was 107.8MB in the beginning and 99.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 18:37:38,759 INFO L158 Benchmark]: BuchiAutomizer took 4449.08ms. Allocated memory is still 159.4MB. Free memory was 99.0MB in the beginning and 68.9MB in the end (delta: 30.1MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2024-11-08 18:37:38,760 INFO L158 Benchmark]: Witness Printer took 3.45ms. Allocated memory is still 159.4MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:37:38,761 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84ms. Allocated memory is still 123.7MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 418.27ms. Allocated memory is still 159.4MB. Free memory was 122.0MB in the beginning and 110.9MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.17ms. Allocated memory is still 159.4MB. Free memory was 110.9MB in the beginning and 109.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.94ms. Allocated memory is still 159.4MB. Free memory was 109.3MB in the beginning and 108.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.14ms. Allocated memory is still 159.4MB. Free memory was 107.8MB in the beginning and 99.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4449.08ms. Allocated memory is still 159.4MB. Free memory was 99.0MB in the beginning and 68.9MB in the end (delta: 30.1MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * Witness Printer took 3.45ms. Allocated memory is still 159.4MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long) -1 * j) + m) and consists of 3 locations. One deterministic module has affine ranking function (((long) -1 * j) + m) and consists of 3 locations. One deterministic module has affine ranking function (((long) -1 * i) + n) and consists of 3 locations. One nondeterministic module has affine ranking function (((long) -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 4.3s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 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: 3/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 64 mSDtfsCounter, 36 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: 52ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-08 18:37:38,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:38,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:39,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:39,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca96899a-efc7-4daa-9b46-95b6e523cd96/bin/uautomizer-verify-jihMAELWvX/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