./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB16.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya --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 af8e82454aa21445af9cfd1f5b129d72eb611482c0d2720e1036f8b2ab15d2d6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:53:34,017 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:53:34,108 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-29 05:53:34,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:53:34,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:53:34,148 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:53:34,149 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:53:34,150 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:53:34,151 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:53:34,151 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:53:34,152 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:53:34,153 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:53:34,153 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:53:34,154 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 05:53:34,154 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 05:53:34,155 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 05:53:34,155 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 05:53:34,156 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 05:53:34,156 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 05:53:34,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:53:34,157 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 05:53:34,159 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:53:34,159 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:53:34,160 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 05:53:34,160 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 05:53:34,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 05:53:34,161 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:53:34,161 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:53:34,162 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 05:53:34,162 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:53:34,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:53:34,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:53:34,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:53:34,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:53:34,164 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 05:53:34,164 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_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af8e82454aa21445af9cfd1f5b129d72eb611482c0d2720e1036f8b2ab15d2d6 [2023-11-29 05:53:34,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:53:34,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:53:34,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:53:34,483 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:53:34,484 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:53:34,485 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-restricted-15/PastaB16.c [2023-11-29 05:53:37,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:53:37,778 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:53:37,778 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/sv-benchmarks/c/termination-restricted-15/PastaB16.c [2023-11-29 05:53:37,783 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/data/d31c0a608/2ae48695f8bd401dae6ea7e27f0e7c10/FLAG5300fd325 [2023-11-29 05:53:37,794 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/data/d31c0a608/2ae48695f8bd401dae6ea7e27f0e7c10 [2023-11-29 05:53:37,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:53:37,797 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:53:37,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:53:37,799 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:53:37,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:53:37,804 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:53:37" (1/1) ... [2023-11-29 05:53:37,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d0a2ac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:37, skipping insertion in model container [2023-11-29 05:53:37,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:53:37" (1/1) ... [2023-11-29 05:53:37,820 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:53:37,927 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:53:37,931 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:53:37,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:53:37,952 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:53:37,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:37 WrapperNode [2023-11-29 05:53:37,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:53:37,953 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:53:37,953 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:53:37,954 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:53:37,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:37" (1/1) ... [2023-11-29 05:53:37,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:37" (1/1) ... [2023-11-29 05:53:37,981 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2023-11-29 05:53:37,982 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:53:37,982 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:53:37,982 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:53:37,982 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:53:37,993 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:37" (1/1) ... [2023-11-29 05:53:37,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:37" (1/1) ... [2023-11-29 05:53:37,994 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:37" (1/1) ... [2023-11-29 05:53:37,998 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 05:53:37,999 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:37" (1/1) ... [2023-11-29 05:53:37,999 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:37" (1/1) ... [2023-11-29 05:53:38,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:37" (1/1) ... [2023-11-29 05:53:38,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:37" (1/1) ... [2023-11-29 05:53:38,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:37" (1/1) ... [2023-11-29 05:53:38,004 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:37" (1/1) ... [2023-11-29 05:53:38,005 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:53:38,006 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:53:38,006 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:53:38,006 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:53:38,007 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:37" (1/1) ... [2023-11-29 05:53:38,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:38,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:38,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:38,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 05:53:38,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:53:38,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:53:38,144 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:53:38,146 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:53:38,184 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:53:38,192 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:53:38,192 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 05:53:38,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:53:38 BoogieIcfgContainer [2023-11-29 05:53:38,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:53:38,194 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 05:53:38,194 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 05:53:38,197 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 05:53:38,198 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:53:38,198 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 05:53:37" (1/3) ... [2023-11-29 05:53:38,199 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64f3eb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 05:53:38, skipping insertion in model container [2023-11-29 05:53:38,199 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:53:38,199 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:37" (2/3) ... [2023-11-29 05:53:38,200 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64f3eb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 05:53:38, skipping insertion in model container [2023-11-29 05:53:38,200 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:53:38,200 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:53:38" (3/3) ... [2023-11-29 05:53:38,201 INFO L332 chiAutomizerObserver]: Analyzing ICFG PastaB16.c [2023-11-29 05:53:38,250 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 05:53:38,250 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 05:53:38,251 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 05:53:38,251 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 05:53:38,251 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 05:53:38,251 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 05:53:38,251 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 05:53:38,251 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 05:53:38,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:38,267 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-29 05:53:38,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:53:38,267 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:53:38,271 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 05:53:38,272 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 05:53:38,272 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 05:53:38,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:38,273 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-29 05:53:38,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:53:38,273 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:53:38,273 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 05:53:38,273 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 05:53:38,280 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 9#L11-2true [2023-11-29 05:53:38,280 INFO L750 eck$LassoCheckResult]: Loop: 9#L11-2true assume !!(main_~x~0#1 > 0); 2#L12-2true assume !(main_~y~0#1 > 0); 4#L12-3true main_~x~0#1 := main_~x~0#1 - 1; 9#L11-2true [2023-11-29 05:53:38,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:38,290 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-29 05:53:38,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:38,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534126779] [2023-11-29 05:53:38,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:38,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:38,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:38,405 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:38,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:38,408 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2023-11-29 05:53:38,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:38,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614845997] [2023-11-29 05:53:38,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:38,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:38,418 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:38,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:38,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:38,425 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2023-11-29 05:53:38,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:38,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302141599] [2023-11-29 05:53:38,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:38,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:38,433 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:38,438 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:38,499 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:53:38,499 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:53:38,500 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:53:38,500 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:53:38,500 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:53:38,500 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:38,500 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:53:38,500 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:53:38,500 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration1_Loop [2023-11-29 05:53:38,501 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:53:38,501 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:53:38,518 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:38,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:38,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:38,538 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:38,597 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:53:38,598 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:53:38,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:38,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:38,601 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:38,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 05:53:38,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:38,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:38,630 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:53:38,631 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:53:38,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:53:38,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:38,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:38,642 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:38,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 05:53:38,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:38,647 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:38,669 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:53:38,669 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:53:38,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 05:53:38,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:38,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:38,674 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:38,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 05:53:38,678 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:38,678 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:38,699 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:53:38,699 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=0} Honda state: {ULTIMATE.start_main_~y~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:53:38,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-29 05:53:38,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:38,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:38,704 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:38,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 05:53:38,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:38,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:38,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-29 05:53:38,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:38,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:38,727 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:38,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 05:53:38,733 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:53:38,734 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:38,757 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:53:38,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-29 05:53:38,760 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:53:38,760 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:53:38,760 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:53:38,761 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:53:38,761 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:53:38,761 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:38,761 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:53:38,761 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:53:38,761 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration1_Loop [2023-11-29 05:53:38,761 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:53:38,761 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:53:38,764 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:38,769 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:38,775 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:38,778 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:38,823 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:53:38,828 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:53:38,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:38,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:38,832 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:38,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 05:53:38,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:53:38,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:38,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:38,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:38,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:38,855 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 05:53:38,855 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 05:53:38,865 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:53:38,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-29 05:53:38,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:38,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:38,871 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:38,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 05:53:38,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:53:38,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:38,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:38,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:38,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:38,889 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 05:53:38,889 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 05:53:38,895 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:53:38,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-29 05:53:38,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:38,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:38,900 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:38,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-29 05:53:38,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:53:38,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:38,913 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:53:38,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:38,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:38,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:38,914 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:53:38,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:53:38,916 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:53:38,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-29 05:53:38,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:38,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:38,921 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:38,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-29 05:53:38,925 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:53:38,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:38,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:53:38,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:38,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:38,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:38,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:53:38,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:53:38,943 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:53:38,946 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-29 05:53:38,946 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 05:53:38,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:38,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:38,973 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:38,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-29 05:53:38,980 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:53:38,980 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:53:38,980 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:53:38,981 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-29 05:53:38,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-29 05:53:38,989 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:53:39,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:39,028 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:53:39,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:39,042 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:53:39,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:39,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:39,111 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-29 05:53:39,114 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:39,172 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 34 transitions. Complement of second has 8 states. [2023-11-29 05:53:39,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-29 05:53:39,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:39,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2023-11-29 05:53:39,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-29 05:53:39,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:39,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-29 05:53:39,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:39,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-29 05:53:39,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:39,186 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 34 transitions. [2023-11-29 05:53:39,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 05:53:39,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 8 states and 11 transitions. [2023-11-29 05:53:39,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-11-29 05:53:39,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-29 05:53:39,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-11-29 05:53:39,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:53:39,195 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-29 05:53:39,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-11-29 05:53:39,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2023-11-29 05:53:39,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:39,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-11-29 05:53:39,224 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-11-29 05:53:39,224 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-11-29 05:53:39,224 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 05:53:39,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2023-11-29 05:53:39,225 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 05:53:39,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:53:39,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:53:39,225 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 05:53:39,225 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-29 05:53:39,226 INFO L748 eck$LassoCheckResult]: Stem: 77#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 78#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_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 79#L11-2 assume !!(main_~x~0#1 > 0); 73#L12-2 [2023-11-29 05:53:39,226 INFO L750 eck$LassoCheckResult]: Loop: 73#L12-2 assume !!(main_~y~0#1 > 0);main_~y~0#1 := main_~y~0#1 - 1; 73#L12-2 [2023-11-29 05:53:39,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:39,227 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-29 05:53:39,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:39,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235822243] [2023-11-29 05:53:39,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:39,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:39,232 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:39,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:39,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:39,237 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2023-11-29 05:53:39,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:39,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293487634] [2023-11-29 05:53:39,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:39,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:39,242 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:39,246 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:39,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:39,247 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2023-11-29 05:53:39,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:39,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529759864] [2023-11-29 05:53:39,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:39,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:39,254 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:39,258 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:39,276 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:53:39,277 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:53:39,277 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:53:39,277 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:53:39,277 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:53:39,277 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:39,277 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:53:39,278 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:53:39,278 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration2_Loop [2023-11-29 05:53:39,278 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:53:39,278 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:53:39,280 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:39,284 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:39,288 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:39,335 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:53:39,335 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:53:39,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:39,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:39,337 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:39,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-29 05:53:39,342 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:39,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:39,369 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:53:39,369 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:53:39,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-29 05:53:39,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:39,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:39,375 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:39,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-29 05:53:39,378 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:39,378 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:39,399 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:53:39,399 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:53:39,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-29 05:53:39,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:39,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:39,405 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:39,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-29 05:53:39,408 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:39,409 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:39,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-29 05:53:39,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:39,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:39,427 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:39,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-29 05:53:39,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:53:39,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:39,457 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:53:39,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-29 05:53:39,460 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:53:39,461 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:53:39,461 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:53:39,461 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:53:39,461 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:53:39,461 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:39,461 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:53:39,461 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:53:39,461 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration2_Loop [2023-11-29 05:53:39,461 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:53:39,461 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:53:39,463 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:39,468 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:39,472 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:39,516 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:53:39,516 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:53:39,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:39,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:39,518 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:39,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-29 05:53:39,521 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:53:39,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:39,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:39,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:39,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:39,540 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 05:53:39,540 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 05:53:39,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-11-29 05:53:39,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:53:39,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-11-29 05:53:39,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:39,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:39,580 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:39,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-29 05:53:39,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:53:39,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:39,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:39,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:39,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:39,618 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 05:53:39,619 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 05:53:39,640 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:53:39,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-29 05:53:39,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:39,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:39,646 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:39,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-29 05:53:39,657 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:53:39,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:39,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:53:39,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:39,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:39,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:39,674 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:53:39,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:53:39,677 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:53:39,681 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-29 05:53:39,681 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 05:53:39,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:39,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:39,689 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:39,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-29 05:53:39,692 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:53:39,692 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:53:39,692 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:53:39,692 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-29 05:53:39,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-29 05:53:39,697 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:53:39,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:39,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:53:39,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:39,729 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:53:39,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:39,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:39,730 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 05:53:39,731 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:39,740 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 14 states and 19 transitions. Complement of second has 4 states. [2023-11-29 05:53:39,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 05:53:39,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:39,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-29 05:53:39,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 1 letters. [2023-11-29 05:53:39,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:39,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 1 letters. [2023-11-29 05:53:39,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:39,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-29 05:53:39,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:39,743 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2023-11-29 05:53:39,745 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 05:53:39,745 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2023-11-29 05:53:39,745 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 05:53:39,745 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 05:53:39,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 05:53:39,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:53:39,745 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:53:39,745 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:53:39,746 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:53:39,746 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 05:53:39,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-29 05:53:39,746 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 05:53:39,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-29 05:53:39,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 05:53:39 BoogieIcfgContainer [2023-11-29 05:53:39,755 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 05:53:39,756 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:53:39,756 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:53:39,756 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:53:39,757 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:53:38" (3/4) ... [2023-11-29 05:53:39,759 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 05:53:39,760 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:53:39,761 INFO L158 Benchmark]: Toolchain (without parser) took 1964.02ms. Allocated memory is still 146.8MB. Free memory was 115.3MB in the beginning and 106.9MB in the end (delta: 8.5MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2023-11-29 05:53:39,762 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:53:39,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 154.09ms. Allocated memory is still 146.8MB. Free memory was 114.7MB in the beginning and 105.6MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 05:53:39,763 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.49ms. Allocated memory is still 146.8MB. Free memory was 105.6MB in the beginning and 104.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:53:39,764 INFO L158 Benchmark]: Boogie Preprocessor took 23.32ms. Allocated memory is still 146.8MB. Free memory was 104.3MB in the beginning and 102.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:53:39,764 INFO L158 Benchmark]: RCFGBuilder took 187.19ms. Allocated memory is still 146.8MB. Free memory was 102.9MB in the beginning and 94.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 05:53:39,765 INFO L158 Benchmark]: BuchiAutomizer took 1561.26ms. Allocated memory is still 146.8MB. Free memory was 94.5MB in the beginning and 106.9MB in the end (delta: -12.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:53:39,765 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 146.8MB. Free memory is still 106.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:53:39,769 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 154.09ms. Allocated memory is still 146.8MB. Free memory was 114.7MB in the beginning and 105.6MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.49ms. Allocated memory is still 146.8MB. Free memory was 105.6MB in the beginning and 104.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.32ms. Allocated memory is still 146.8MB. Free memory was 104.3MB in the beginning and 102.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 187.19ms. Allocated memory is still 146.8MB. Free memory was 102.9MB in the beginning and 94.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1561.26ms. Allocated memory is still 146.8MB. Free memory was 94.5MB in the beginning and 106.9MB in the end (delta: -12.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 146.8MB. Free memory is still 106.9MB. 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 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 11 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax206 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-29 05:53:39,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-11-29 05:53:39,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9df5fb2a-4eaa-4d30-9155-640a8fd5c943/bin/uautomizer-verify-BQ2R08f2Ya/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