./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd --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 32bit --witnessprinter.graph.data.programhash 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:31:50,879 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:31:50,974 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-13 14:31:50,980 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:31:50,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:31:51,020 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:31:51,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:31:51,023 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:31:51,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:31:51,024 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:31:51,025 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:31:51,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:31:51,025 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:31:51,026 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 14:31:51,027 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 14:31:51,027 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 14:31:51,027 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 14:31:51,027 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 14:31:51,027 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 14:31:51,028 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:31:51,028 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 14:31:51,028 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:31:51,028 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:31:51,028 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:31:51,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:31:51,029 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 14:31:51,029 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 14:31:51,029 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 14:31:51,029 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:31:51,029 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:31:51,030 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:31:51,030 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:31:51,030 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 14:31:51,030 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:31:51,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:31:51,031 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:31:51,032 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:31:51,032 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:31:51,032 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 14:31:51,032 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106 [2024-11-13 14:31:51,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:31:51,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:31:51,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:31:51,369 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:31:51,369 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:31:51,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/loop-invgen/id_build.i Unable to find full path for "g++" [2024-11-13 14:31:53,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:31:53,524 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:31:53,528 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/sv-benchmarks/c/loop-invgen/id_build.i [2024-11-13 14:31:53,540 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/data/7de84c264/2dbb9a0393024984b20a7f758e9897c1/FLAG6e023dde3 [2024-11-13 14:31:53,567 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/data/7de84c264/2dbb9a0393024984b20a7f758e9897c1 [2024-11-13 14:31:53,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:31:53,575 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:31:53,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:31:53,577 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:31:53,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:31:53,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:31:53" (1/1) ... [2024-11-13 14:31:53,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e470446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:53, skipping insertion in model container [2024-11-13 14:31:53,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:31:53" (1/1) ... [2024-11-13 14:31:53,605 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:31:53,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:31:53,826 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:31:53,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:31:53,864 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:31:53,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:53 WrapperNode [2024-11-13 14:31:53,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:31:53,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:31:53,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:31:53,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:31:53,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:53" (1/1) ... [2024-11-13 14:31:53,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:53" (1/1) ... [2024-11-13 14:31:53,904 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 49 [2024-11-13 14:31:53,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:31:53,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:31:53,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:31:53,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:31:53,917 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:53" (1/1) ... [2024-11-13 14:31:53,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:53" (1/1) ... [2024-11-13 14:31:53,918 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:53" (1/1) ... [2024-11-13 14:31:53,934 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 14:31:53,934 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:53" (1/1) ... [2024-11-13 14:31:53,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:53" (1/1) ... [2024-11-13 14:31:53,939 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:53" (1/1) ... [2024-11-13 14:31:53,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:53" (1/1) ... [2024-11-13 14:31:53,949 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:53" (1/1) ... [2024-11-13 14:31:53,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:53" (1/1) ... [2024-11-13 14:31:53,955 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:31:53,955 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:31:53,955 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:31:53,956 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:31:53,957 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:53" (1/1) ... [2024-11-13 14:31:53,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:53,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:53,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:53,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 14:31:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:31:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:31:54,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:31:54,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:31:54,116 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:31:54,118 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:31:54,251 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-13 14:31:54,252 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:31:54,270 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:31:54,271 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 14:31:54,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:31:54 BoogieIcfgContainer [2024-11-13 14:31:54,272 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:31:54,273 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 14:31:54,274 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 14:31:54,279 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 14:31:54,280 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:31:54,280 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 02:31:53" (1/3) ... [2024-11-13 14:31:54,282 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14c982d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 02:31:54, skipping insertion in model container [2024-11-13 14:31:54,282 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:31:54,282 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:53" (2/3) ... [2024-11-13 14:31:54,283 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14c982d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 02:31:54, skipping insertion in model container [2024-11-13 14:31:54,284 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:31:54,284 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:31:54" (3/3) ... [2024-11-13 14:31:54,285 INFO L333 chiAutomizerObserver]: Analyzing ICFG id_build.i [2024-11-13 14:31:54,366 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 14:31:54,366 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 14:31:54,367 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 14:31:54,367 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 14:31:54,367 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 14:31:54,367 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 14:31:54,368 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 14:31:54,368 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 14:31:54,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:31:54,393 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-13 14:31:54,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:31:54,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:31:54,399 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 14:31:54,399 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 14:31:54,400 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 14:31:54,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:31:54,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-13 14:31:54,403 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:31:54,403 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:31:54,403 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 14:31:54,403 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 14:31:54,411 INFO L745 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 9#L27-2true [2024-11-13 14:31:54,411 INFO L747 eck$LassoCheckResult]: Loop: 9#L27-2true assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 7#L28-2true assume !(main_~j~0#1 < 8); 16#L28-3true main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 9#L27-2true [2024-11-13 14:31:54,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:54,417 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-13 14:31:54,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:54,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819534279] [2024-11-13 14:31:54,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:54,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:54,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:31:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:54,541 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:31:54,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:54,548 INFO L85 PathProgramCache]: Analyzing trace with hash 39953, now seen corresponding path program 1 times [2024-11-13 14:31:54,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:54,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529403808] [2024-11-13 14:31:54,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:54,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:54,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:54,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:31:54,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529403808] [2024-11-13 14:31:54,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529403808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:31:54,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:31:54,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:31:54,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384708358] [2024-11-13 14:31:54,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:31:54,666 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-13 14:31:54,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:31:54,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:31:54,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:31:54,702 INFO L87 Difference]: Start difference. First operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:31:54,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:31:54,731 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2024-11-13 14:31:54,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 27 transitions. [2024-11-13 14:31:54,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-13 14:31:54,739 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 14 states and 15 transitions. [2024-11-13 14:31:54,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-13 14:31:54,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-13 14:31:54,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 15 transitions. [2024-11-13 14:31:54,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 14:31:54,742 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-11-13 14:31:54,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 15 transitions. [2024-11-13 14:31:54,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 10. [2024-11-13 14:31:54,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:31:54,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2024-11-13 14:31:54,769 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 11 transitions. [2024-11-13 14:31:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:31:54,776 INFO L424 stractBuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2024-11-13 14:31:54,776 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 14:31:54,776 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 11 transitions. [2024-11-13 14:31:54,777 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-13 14:31:54,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:31:54,777 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:31:54,777 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 14:31:54,777 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:31:54,778 INFO L745 eck$LassoCheckResult]: Stem: 59#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 60#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 63#L27-2 [2024-11-13 14:31:54,778 INFO L747 eck$LassoCheckResult]: Loop: 63#L27-2 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 61#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 54#L18 assume !(0 == __VERIFIER_assert_~cond#1); 55#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 56#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 57#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 58#L28-2 assume !(main_~j~0#1 < 8); 62#L28-3 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 63#L27-2 [2024-11-13 14:31:54,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:54,780 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-13 14:31:54,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:54,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770422735] [2024-11-13 14:31:54,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:54,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:54,789 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:31:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:54,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:31:54,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:54,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1814056873, now seen corresponding path program 1 times [2024-11-13 14:31:54,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:54,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552263335] [2024-11-13 14:31:54,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:54,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:54,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:54,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:31:54,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552263335] [2024-11-13 14:31:54,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552263335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:31:54,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444940575] [2024-11-13 14:31:54,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:54,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:31:54,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:54,876 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:31:54,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:31:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:54,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:31:54,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:31:55,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:55,003 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:31:55,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:55,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444940575] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:31:55,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:31:55,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-13 14:31:55,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117481461] [2024-11-13 14:31:55,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:31:55,054 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-13 14:31:55,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:31:55,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:31:55,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:31:55,055 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:31:55,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:31:55,099 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2024-11-13 14:31:55,100 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 26 transitions. [2024-11-13 14:31:55,101 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2024-11-13 14:31:55,101 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 26 transitions. [2024-11-13 14:31:55,102 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-11-13 14:31:55,102 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-11-13 14:31:55,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 26 transitions. [2024-11-13 14:31:55,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 14:31:55,102 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 26 transitions. [2024-11-13 14:31:55,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 26 transitions. [2024-11-13 14:31:55,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-13 14:31:55,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.04) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:31:55,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2024-11-13 14:31:55,105 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 26 transitions. [2024-11-13 14:31:55,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:31:55,107 INFO L424 stractBuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2024-11-13 14:31:55,107 INFO L331 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-13 14:31:55,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 26 transitions. [2024-11-13 14:31:55,108 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2024-11-13 14:31:55,108 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:31:55,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:31:55,108 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 14:31:55,109 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 4, 4, 4, 1, 1, 1] [2024-11-13 14:31:55,109 INFO L745 eck$LassoCheckResult]: Stem: 146#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 147#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 149#L27-2 [2024-11-13 14:31:55,109 INFO L747 eck$LassoCheckResult]: Loop: 149#L27-2 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 150#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 164#L18 assume !(0 == __VERIFIER_assert_~cond#1); 163#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 162#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 143#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 144#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 140#L18 assume !(0 == __VERIFIER_assert_~cond#1); 141#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 142#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 145#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 161#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 160#L18 assume !(0 == __VERIFIER_assert_~cond#1); 159#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 158#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 157#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 156#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 152#L18 assume !(0 == __VERIFIER_assert_~cond#1); 155#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 154#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 153#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 151#L28-2 assume !(main_~j~0#1 < 8); 148#L28-3 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 149#L27-2 [2024-11-13 14:31:55,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:55,110 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-11-13 14:31:55,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:55,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961027691] [2024-11-13 14:31:55,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:55,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:55,118 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:31:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:55,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:31:55,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:55,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1361550447, now seen corresponding path program 2 times [2024-11-13 14:31:55,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:55,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009418577] [2024-11-13 14:31:55,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:55,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:55,390 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:55,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:31:55,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009418577] [2024-11-13 14:31:55,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009418577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:31:55,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246761445] [2024-11-13 14:31:55,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:31:55,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:31:55,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:55,397 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:31:55,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:31:55,494 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:31:55,494 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:31:55,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:31:55,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:31:55,584 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:55,584 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:31:55,752 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:55,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246761445] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:31:55,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:31:55,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2024-11-13 14:31:55,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869102465] [2024-11-13 14:31:55,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:31:55,754 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-13 14:31:55,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:31:55,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:31:55,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:31:55,756 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. cyclomatic complexity: 2 Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:31:55,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:31:55,827 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2024-11-13 14:31:55,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 46 transitions. [2024-11-13 14:31:55,829 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2024-11-13 14:31:55,831 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 46 transitions. [2024-11-13 14:31:55,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2024-11-13 14:31:55,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2024-11-13 14:31:55,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 46 transitions. [2024-11-13 14:31:55,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 14:31:55,833 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 46 transitions. [2024-11-13 14:31:55,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 46 transitions. [2024-11-13 14:31:55,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-13 14:31:55,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 44 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:31:55,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2024-11-13 14:31:55,836 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 46 transitions. [2024-11-13 14:31:55,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:31:55,837 INFO L424 stractBuchiCegarLoop]: Abstraction has 45 states and 46 transitions. [2024-11-13 14:31:55,838 INFO L331 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-13 14:31:55,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 46 transitions. [2024-11-13 14:31:55,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2024-11-13 14:31:55,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:31:55,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:31:55,839 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 14:31:55,839 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [8, 8, 8, 8, 8, 1, 1, 1] [2024-11-13 14:31:55,840 INFO L745 eck$LassoCheckResult]: Stem: 361#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 362#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 364#L27-2 [2024-11-13 14:31:55,840 INFO L747 eck$LassoCheckResult]: Loop: 364#L27-2 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 365#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 399#L18 assume !(0 == __VERIFIER_assert_~cond#1); 398#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 397#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 358#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 359#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 355#L18 assume !(0 == __VERIFIER_assert_~cond#1); 356#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 357#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 360#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 396#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 395#L18 assume !(0 == __VERIFIER_assert_~cond#1); 394#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 393#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 392#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 391#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 390#L18 assume !(0 == __VERIFIER_assert_~cond#1); 389#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 388#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 387#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 386#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 385#L18 assume !(0 == __VERIFIER_assert_~cond#1); 384#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 383#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 382#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 381#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 380#L18 assume !(0 == __VERIFIER_assert_~cond#1); 379#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 378#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 377#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 376#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 375#L18 assume !(0 == __VERIFIER_assert_~cond#1); 374#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 373#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 372#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 371#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 367#L18 assume !(0 == __VERIFIER_assert_~cond#1); 370#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 369#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 368#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 366#L28-2 assume !(main_~j~0#1 < 8); 363#L28-3 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 364#L27-2 [2024-11-13 14:31:55,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:55,840 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2024-11-13 14:31:55,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:55,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048012838] [2024-11-13 14:31:55,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:55,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:55,846 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:31:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:55,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:31:55,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:55,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1082037487, now seen corresponding path program 3 times [2024-11-13 14:31:55,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:55,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655876425] [2024-11-13 14:31:55,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:55,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:55,887 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:31:55,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:55,937 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:31:55,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:55,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1004888591, now seen corresponding path program 1 times [2024-11-13 14:31:55,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:55,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061855346] [2024-11-13 14:31:55,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:55,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:55,995 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:31:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:56,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:31:57,018 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:31:57,019 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:31:57,019 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:31:57,019 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:31:57,020 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 14:31:57,020 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:57,020 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:31:57,020 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:31:57,020 INFO L132 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration4_Loop [2024-11-13 14:31:57,020 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:31:57,022 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:31:57,040 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:57,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:57,051 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:57,055 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:57,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:57,075 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:57,138 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:31:57,142 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 14:31:57,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:57,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:57,151 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:57,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-13 14:31:57,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:31:57,158 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:31:57,183 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 14:31:57,183 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 14:31:57,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-13 14:31:57,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:57,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:57,215 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:57,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-13 14:31:57,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:31:57,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:31:57,233 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 14:31:57,233 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 14:31:57,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-13 14:31:57,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:57,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:57,251 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:57,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-13 14:31:57,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:31:57,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:31:57,268 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 14:31:57,268 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 14:31:57,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-13 14:31:57,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:57,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:57,285 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:57,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-13 14:31:57,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:31:57,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:31:57,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-13 14:31:57,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:57,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:57,328 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:57,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-13 14:31:57,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 14:31:57,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:31:57,418 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 14:31:57,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-13 14:31:57,423 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:31:57,423 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:31:57,423 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:31:57,423 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:31:57,423 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 14:31:57,423 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:57,423 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:31:57,424 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:31:57,424 INFO L132 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration4_Loop [2024-11-13 14:31:57,424 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:31:57,424 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:31:57,425 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:57,431 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:57,438 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:57,445 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:57,452 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:57,464 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:57,517 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:31:57,522 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 14:31:57,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:57,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:57,526 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:57,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-13 14:31:57,530 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 14:31:57,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:31:57,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:31:57,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:31:57,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:31:57,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:31:57,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:31:57,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:31:57,556 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 14:31:57,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-13 14:31:57,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:57,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:57,580 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:57,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-13 14:31:57,584 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 14:31:57,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:31:57,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:31:57,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:31:57,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:31:57,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:31:57,602 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:31:57,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:31:57,604 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 14:31:57,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-13 14:31:57,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:57,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:57,628 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:57,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-13 14:31:57,631 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 14:31:57,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:31:57,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:31:57,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:31:57,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:31:57,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:31:57,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:31:57,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:31:57,651 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 14:31:57,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-13 14:31:57,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:57,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:57,674 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:57,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-13 14:31:57,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 14:31:57,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:31:57,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:31:57,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:31:57,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:31:57,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:31:57,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:31:57,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:31:57,697 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 14:31:57,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-13 14:31:57,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:57,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:57,723 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:57,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-13 14:31:57,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 14:31:57,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:31:57,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:31:57,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:31:57,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:31:57,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:31:57,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:31:57,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:31:57,752 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 14:31:57,758 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-13 14:31:57,763 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 14:31:57,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:57,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:57,770 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:57,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-13 14:31:57,773 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 14:31:57,773 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 14:31:57,774 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 14:31:57,774 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nlen~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~nlen~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-13 14:31:57,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-13 14:31:57,799 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 14:31:57,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:57,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:31:57,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:31:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:57,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:31:57,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:31:58,215 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-13 14:31:58,218 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 14:31:58,220 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 46 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:31:58,271 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 46 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 88 states and 91 transitions. Complement of second has 4 states. [2024-11-13 14:31:58,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 14:31:58,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:31:58,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2024-11-13 14:31:58,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 43 letters. [2024-11-13 14:31:58,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:31:58,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 45 letters. Loop has 43 letters. [2024-11-13 14:31:58,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:31:58,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 86 letters. [2024-11-13 14:31:58,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:31:58,282 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 91 transitions. [2024-11-13 14:31:58,284 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 14:31:58,285 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 87 states and 90 transitions. [2024-11-13 14:31:58,286 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2024-11-13 14:31:58,286 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2024-11-13 14:31:58,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 90 transitions. [2024-11-13 14:31:58,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 14:31:58,286 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 90 transitions. [2024-11-13 14:31:58,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 90 transitions. [2024-11-13 14:31:58,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 51. [2024-11-13 14:31:58,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.0588235294117647) internal successors, (54), 50 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:31:58,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2024-11-13 14:31:58,291 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 54 transitions. [2024-11-13 14:31:58,291 INFO L424 stractBuchiCegarLoop]: Abstraction has 51 states and 54 transitions. [2024-11-13 14:31:58,291 INFO L331 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-13 14:31:58,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 51 states and 54 transitions. [2024-11-13 14:31:58,292 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 14:31:58,292 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:31:58,292 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:31:58,293 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 14:31:58,293 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-13 14:31:58,293 INFO L745 eck$LassoCheckResult]: Stem: 654#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 655#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 659#L27-2 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 650#L28-2 [2024-11-13 14:31:58,293 INFO L747 eck$LassoCheckResult]: Loop: 650#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 642#L18 assume !(0 == __VERIFIER_assert_~cond#1); 643#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 646#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 649#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 650#L28-2 [2024-11-13 14:31:58,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:58,294 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2024-11-13 14:31:58,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:58,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840117630] [2024-11-13 14:31:58,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:58,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:58,317 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:31:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:58,338 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:31:58,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:58,338 INFO L85 PathProgramCache]: Analyzing trace with hash 46241047, now seen corresponding path program 1 times [2024-11-13 14:31:58,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:58,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508629348] [2024-11-13 14:31:58,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:58,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:58,360 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:31:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:58,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:31:58,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:58,377 INFO L85 PathProgramCache]: Analyzing trace with hash 271456305, now seen corresponding path program 1 times [2024-11-13 14:31:58,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:58,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-13 14:31:58,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933728170] [2024-11-13 14:31:58,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:58,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:58,391 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:31:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:58,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:31:58,472 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:31:58,472 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:31:58,472 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:31:58,472 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:31:58,472 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 14:31:58,472 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:58,472 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:31:58,472 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:31:58,472 INFO L132 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration5_Loop [2024-11-13 14:31:58,472 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:31:58,472 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:31:58,473 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:58,477 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:58,480 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:58,488 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:58,492 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:58,545 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:31:58,545 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 14:31:58,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:58,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:58,550 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:58,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-13 14:31:58,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:31:58,552 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:31:58,574 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 14:31:58,574 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 14:31:58,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-13 14:31:58,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:58,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:58,598 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:58,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:31:58,603 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:31:58,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-13 14:31:58,621 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 14:31:58,621 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 14:31:58,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-13 14:31:58,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:58,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:58,645 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:58,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-13 14:31:58,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:31:58,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:31:58,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-13 14:31:58,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:58,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:58,688 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:58,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-13 14:31:58,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 14:31:58,691 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:31:58,732 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 14:31:58,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-13 14:31:58,735 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:31:58,735 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:31:58,735 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:31:58,735 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:31:58,736 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 14:31:58,736 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:58,736 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:31:58,736 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:31:58,736 INFO L132 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration5_Loop [2024-11-13 14:31:58,736 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:31:58,736 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:31:58,737 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:58,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:58,743 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:58,751 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:58,756 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:58,800 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:31:58,800 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 14:31:58,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:58,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:58,803 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:58,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-13 14:31:58,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 14:31:58,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:31:58,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:31:58,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:31:58,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:31:58,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:31:58,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:31:58,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:31:58,825 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 14:31:58,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-13 14:31:58,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:58,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:58,844 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:58,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-13 14:31:58,848 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 14:31:58,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:31:58,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:31:58,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:31:58,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:31:58,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:31:58,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:31:58,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:31:58,866 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 14:31:58,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-13 14:31:58,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:58,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:58,888 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:58,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-13 14:31:58,891 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 14:31:58,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:31:58,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:31:58,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:31:58,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:31:58,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:31:58,909 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:31:58,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:31:58,914 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 14:31:58,919 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 14:31:58,919 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 14:31:58,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:58,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:58,922 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:58,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-13 14:31:58,926 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 14:31:58,927 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 14:31:58,927 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 14:31:58,927 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 15 Supporting invariants [] [2024-11-13 14:31:58,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-13 14:31:58,946 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 14:31:58,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:58,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:31:58,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:31:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:58,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:31:58,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:31:59,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:59,032 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 14:31:59,032 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 51 states and 54 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:31:59,065 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 51 states and 54 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 134 states and 140 transitions. Complement of second has 5 states. [2024-11-13 14:31:59,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 14:31:59,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:31:59,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-13 14:31:59,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 5 letters. [2024-11-13 14:31:59,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:31:59,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 5 letters. [2024-11-13 14:31:59,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:31:59,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 10 letters. [2024-11-13 14:31:59,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:31:59,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 134 states and 140 transitions. [2024-11-13 14:31:59,076 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 14:31:59,080 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 134 states to 92 states and 95 transitions. [2024-11-13 14:31:59,080 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-13 14:31:59,081 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-13 14:31:59,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 95 transitions. [2024-11-13 14:31:59,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 14:31:59,081 INFO L218 hiAutomatonCegarLoop]: Abstraction has 92 states and 95 transitions. [2024-11-13 14:31:59,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 95 transitions. [2024-11-13 14:31:59,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 51. [2024-11-13 14:31:59,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.0392156862745099) internal successors, (53), 50 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:31:59,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2024-11-13 14:31:59,088 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 53 transitions. [2024-11-13 14:31:59,088 INFO L424 stractBuchiCegarLoop]: Abstraction has 51 states and 53 transitions. [2024-11-13 14:31:59,089 INFO L331 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-13 14:31:59,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 51 states and 53 transitions. [2024-11-13 14:31:59,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 14:31:59,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:31:59,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:31:59,095 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 8, 8, 8, 2, 1, 1, 1, 1] [2024-11-13 14:31:59,095 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-13 14:31:59,095 INFO L745 eck$LassoCheckResult]: Stem: 882#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 883#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 886#L27-2 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 887#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 921#L18 assume !(0 == __VERIFIER_assert_~cond#1); 920#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 919#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 879#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 880#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 873#L18 assume !(0 == __VERIFIER_assert_~cond#1); 874#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 876#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 881#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 918#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 917#L18 assume !(0 == __VERIFIER_assert_~cond#1); 916#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 915#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 914#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 913#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 912#L18 assume !(0 == __VERIFIER_assert_~cond#1); 911#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 910#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 909#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 908#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 907#L18 assume !(0 == __VERIFIER_assert_~cond#1); 906#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 905#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 904#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 903#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 902#L18 assume !(0 == __VERIFIER_assert_~cond#1); 901#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 900#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 899#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 898#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 897#L18 assume !(0 == __VERIFIER_assert_~cond#1); 896#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 895#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 894#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 893#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 889#L18 assume !(0 == __VERIFIER_assert_~cond#1); 892#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 891#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 890#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 888#L28-2 assume !(main_~j~0#1 < 8); 884#L28-3 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 885#L27-2 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 878#L28-2 [2024-11-13 14:31:59,095 INFO L747 eck$LassoCheckResult]: Loop: 878#L28-2 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 871#L18 assume !(0 == __VERIFIER_assert_~cond#1); 872#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 875#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 877#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 878#L28-2 [2024-11-13 14:31:59,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:59,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1086775259, now seen corresponding path program 2 times [2024-11-13 14:31:59,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:59,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213420085] [2024-11-13 14:31:59,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:59,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:59,142 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:31:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:59,175 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:31:59,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:59,178 INFO L85 PathProgramCache]: Analyzing trace with hash 46241047, now seen corresponding path program 2 times [2024-11-13 14:31:59,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:59,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261968789] [2024-11-13 14:31:59,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:59,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:59,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:31:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:59,200 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:31:59,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:59,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1248759165, now seen corresponding path program 3 times [2024-11-13 14:31:59,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:59,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292714945] [2024-11-13 14:31:59,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:59,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:59,234 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:31:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:31:59,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:31:59,327 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:31:59,327 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:31:59,327 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:31:59,327 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:31:59,327 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 14:31:59,327 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:59,328 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:31:59,328 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:31:59,328 INFO L132 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration6_Loop [2024-11-13 14:31:59,328 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:31:59,328 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:31:59,329 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:59,333 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:59,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:59,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:59,356 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:59,403 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:31:59,403 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 14:31:59,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:59,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:59,408 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:59,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-13 14:31:59,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:31:59,411 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:31:59,428 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 14:31:59,428 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 14:31:59,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-13 14:31:59,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:59,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:59,444 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:59,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-13 14:31:59,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:31:59,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:31:59,468 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 14:31:59,468 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~nlen~0#1=1, ULTIMATE.start_main_~i~0#1=0} Honda state: {ULTIMATE.start_main_~nlen~0#1=1, ULTIMATE.start_main_~i~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 14:31:59,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-13 14:31:59,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:59,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:59,484 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:59,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-13 14:31:59,486 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:31:59,486 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:31:59,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-13 14:31:59,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:59,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:59,527 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:59,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-13 14:31:59,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 14:31:59,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:31:59,573 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 14:31:59,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-13 14:31:59,576 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:31:59,576 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:31:59,576 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:31:59,576 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:31:59,576 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 14:31:59,576 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:59,576 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:31:59,577 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:31:59,577 INFO L132 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration6_Loop [2024-11-13 14:31:59,577 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:31:59,577 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:31:59,578 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:59,582 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:59,589 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:59,598 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:59,601 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:31:59,644 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:31:59,644 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 14:31:59,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:59,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:59,649 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:59,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-13 14:31:59,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 14:31:59,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:31:59,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:31:59,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:31:59,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:31:59,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:31:59,668 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:31:59,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:31:59,671 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 14:31:59,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-13 14:31:59,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:59,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:59,694 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:59,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-13 14:31:59,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 14:31:59,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:31:59,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:31:59,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:31:59,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:31:59,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:31:59,718 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:31:59,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:31:59,723 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 14:31:59,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-13 14:31:59,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:59,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:59,745 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:59,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-13 14:31:59,748 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 14:31:59,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:31:59,762 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:31:59,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:31:59,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:31:59,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:31:59,763 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:31:59,763 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:31:59,766 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 14:31:59,769 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 14:31:59,769 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 14:31:59,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:31:59,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:31:59,771 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:31:59,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-13 14:31:59,774 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 14:31:59,774 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 14:31:59,774 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 14:31:59,775 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 15 Supporting invariants [] [2024-11-13 14:31:59,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-13 14:31:59,796 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 14:31:59,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:59,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:31:59,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:31:59,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-13 14:31:59,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-13 14:31:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:59,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:31:59,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:00,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:32:00,032 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 14:32:00,032 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 51 states and 53 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:32:00,060 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 51 states and 53 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 124 states and 128 transitions. Complement of second has 5 states. [2024-11-13 14:32:00,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 14:32:00,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:32:00,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-13 14:32:00,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 46 letters. Loop has 5 letters. [2024-11-13 14:32:00,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:32:00,063 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 14:32:00,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:00,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:32:00,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:00,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:32:00,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:00,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:32:00,270 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 14:32:00,270 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 51 states and 53 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:32:00,297 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 51 states and 53 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 124 states and 128 transitions. Complement of second has 5 states. [2024-11-13 14:32:00,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 14:32:00,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:32:00,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-13 14:32:00,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 46 letters. Loop has 5 letters. [2024-11-13 14:32:00,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:32:00,302 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 14:32:00,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:00,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:32:00,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:00,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:32:00,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:00,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:32:00,479 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 14:32:00,479 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 51 states and 53 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:32:00,501 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 51 states and 53 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 88 states and 92 transitions. Complement of second has 4 states. [2024-11-13 14:32:00,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 14:32:00,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:32:00,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2024-11-13 14:32:00,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 46 letters. Loop has 5 letters. [2024-11-13 14:32:00,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:32:00,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 51 letters. Loop has 5 letters. [2024-11-13 14:32:00,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:32:00,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 46 letters. Loop has 10 letters. [2024-11-13 14:32:00,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:32:00,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 92 transitions. [2024-11-13 14:32:00,505 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 14:32:00,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 0 states and 0 transitions. [2024-11-13 14:32:00,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-13 14:32:00,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-13 14:32:00,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-13 14:32:00,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 14:32:00,506 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:32:00,506 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:32:00,506 INFO L424 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:32:00,506 INFO L331 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-13 14:32:00,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-13 14:32:00,506 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 14:32:00,506 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-13 14:32:00,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 02:32:00 BoogieIcfgContainer [2024-11-13 14:32:00,522 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 14:32:00,523 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:32:00,523 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:32:00,523 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:32:00,524 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:31:54" (3/4) ... [2024-11-13 14:32:00,527 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 14:32:00,527 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:32:00,528 INFO L158 Benchmark]: Toolchain (without parser) took 6953.73ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 52.5MB in the end (delta: 39.9MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2024-11-13 14:32:00,529 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:32:00,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.93ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 81.8MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:32:00,530 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.44ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.6MB in the end (delta: 903.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:32:00,530 INFO L158 Benchmark]: Boogie Preprocessor took 48.92ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.3MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:32:00,531 INFO L158 Benchmark]: RCFGBuilder took 316.95ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 70.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:32:00,532 INFO L158 Benchmark]: BuchiAutomizer took 6249.23ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 52.5MB in the end (delta: 17.5MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2024-11-13 14:32:00,533 INFO L158 Benchmark]: Witness Printer took 4.53ms. Allocated memory is still 117.4MB. Free memory was 52.5MB in the beginning and 52.5MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:32:00,534 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.93ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 81.8MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.44ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.6MB in the end (delta: 903.3kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.92ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.3MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 316.95ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 70.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6249.23ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 52.5MB in the end (delta: 17.5MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Witness Printer took 4.53ms. Allocated memory is still 117.4MB. Free memory was 52.5MB in the beginning and 52.5MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long long) -1 * i) + nlen) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * j) + 15) and consists of 3 locations. One nondeterministic module has affine ranking function (((long long) -2 * j) + 15) and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.1s and 7 iterations. TraceHistogramMax:8. Analysis of lassos took 4.5s. Construction of modules took 0.1s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 81 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 148/148 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 108 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 138 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 69 mSDtfsCounter, 77 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp70 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-13 14:32:00,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 14:32:00,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 14:32:00,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442c1d21-23b2-4fe3-a50e-672a2153aebf/bin/uautomizer-verify-qhAvR1uOyd/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