./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB --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 5a85ef4e6caed20a9aa6e00fcf3a476ebe3f071202fc083a4545018fb19b4c9c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:09:12,031 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:09:12,122 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-28 02:09:12,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:09:12,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:09:12,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:09:12,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:09:12,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:09:12,161 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:09:12,161 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:09:12,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:09:12,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:09:12,162 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:09:12,162 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 02:09:12,162 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 02:09:12,162 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 02:09:12,162 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 02:09:12,163 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 02:09:12,163 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 02:09:12,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:09:12,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 02:09:12,163 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:09:12,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:09:12,163 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:09:12,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:09:12,163 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 02:09:12,164 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 02:09:12,164 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 02:09:12,164 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:09:12,164 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:09:12,164 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:09:12,164 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 02:09:12,164 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:09:12,164 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:09:12,164 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:09:12,165 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:09:12,165 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:09:12,165 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 02:09:12,165 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 02:09:12,165 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_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 5a85ef4e6caed20a9aa6e00fcf3a476ebe3f071202fc083a4545018fb19b4c9c [2024-11-28 02:09:12,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:09:12,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:09:12,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:09:12,481 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:09:12,481 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:09:12,482 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/loop-lit/cggmp2005b.i [2024-11-28 02:09:15,362 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/data/5a00c2cc2/8b028fcd8637495a9f30e634bf5f7447/FLAGee3216dd0 [2024-11-28 02:09:15,609 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:09:15,610 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/sv-benchmarks/c/loop-lit/cggmp2005b.i [2024-11-28 02:09:15,625 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/data/5a00c2cc2/8b028fcd8637495a9f30e634bf5f7447/FLAGee3216dd0 [2024-11-28 02:09:15,651 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/data/5a00c2cc2/8b028fcd8637495a9f30e634bf5f7447 [2024-11-28 02:09:15,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:09:15,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:09:15,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:09:15,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:09:15,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:09:15,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:09:15" (1/1) ... [2024-11-28 02:09:15,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@423c6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:15, skipping insertion in model container [2024-11-28 02:09:15,666 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:09:15" (1/1) ... [2024-11-28 02:09:15,686 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:09:15,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:09:15,879 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:09:15,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:09:15,919 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:09:15,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:15 WrapperNode [2024-11-28 02:09:15,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:09:15,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:09:15,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:09:15,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:09:15,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:15" (1/1) ... [2024-11-28 02:09:15,934 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:15" (1/1) ... [2024-11-28 02:09:15,953 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 38 [2024-11-28 02:09:15,955 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:09:15,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:09:15,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:09:15,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:09:15,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:15" (1/1) ... [2024-11-28 02:09:15,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:15" (1/1) ... [2024-11-28 02:09:15,966 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:15" (1/1) ... [2024-11-28 02:09:15,978 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]. [2024-11-28 02:09:15,979 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:15" (1/1) ... [2024-11-28 02:09:15,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:15" (1/1) ... [2024-11-28 02:09:15,983 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:15" (1/1) ... [2024-11-28 02:09:15,984 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:15" (1/1) ... [2024-11-28 02:09:15,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:15" (1/1) ... [2024-11-28 02:09:15,991 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:15" (1/1) ... [2024-11-28 02:09:15,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:15" (1/1) ... [2024-11-28 02:09:15,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:09:15,998 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:09:15,998 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:09:15,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:09:15,999 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:15" (1/1) ... [2024-11-28 02:09:16,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:16,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:16,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:16,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 02:09:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:09:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:09:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:09:16,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:09:16,133 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:09:16,135 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:09:16,264 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-28 02:09:16,265 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:09:16,274 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:09:16,274 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-28 02:09:16,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:09:16 BoogieIcfgContainer [2024-11-28 02:09:16,275 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:09:16,276 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 02:09:16,276 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 02:09:16,282 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 02:09:16,283 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:09:16,284 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:09:15" (1/3) ... [2024-11-28 02:09:16,285 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@629e92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:09:16, skipping insertion in model container [2024-11-28 02:09:16,285 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:09:16,286 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:15" (2/3) ... [2024-11-28 02:09:16,286 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@629e92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:09:16, skipping insertion in model container [2024-11-28 02:09:16,286 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:09:16,286 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:09:16" (3/3) ... [2024-11-28 02:09:16,288 INFO L363 chiAutomizerObserver]: Analyzing ICFG cggmp2005b.i [2024-11-28 02:09:16,350 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 02:09:16,350 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 02:09:16,350 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 02:09:16,350 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 02:09:16,351 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 02:09:16,351 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 02:09:16,351 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 02:09:16,351 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 02:09:16,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 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) [2024-11-28 02:09:16,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-28 02:09:16,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:09:16,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:09:16,385 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:09:16,386 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-28 02:09:16,386 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 02:09:16,386 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 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) [2024-11-28 02:09:16,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-28 02:09:16,389 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:09:16,389 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:09:16,389 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:09:16,389 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-28 02:09:16,397 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100;" [2024-11-28 02:09:16,398 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 <= 100;" "main_~i~0#1 := 1 + main_~i~0#1;" "assume !(main_~j~0#1 < 20);" "main_~k~0#1 := 4;" "assume !(main_~k~0#1 <= 3);" [2024-11-28 02:09:16,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:16,407 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 02:09:16,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:09:16,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603934387] [2024-11-28 02:09:16,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:16,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:09:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:09:16,508 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:09:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:09:16,539 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:09:16,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:16,542 INFO L85 PathProgramCache]: Analyzing trace with hash 36394871, now seen corresponding path program 1 times [2024-11-28 02:09:16,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:09:16,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836651566] [2024-11-28 02:09:16,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:16,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:09:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:09:16,563 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:09:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:09:16,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:09:16,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:16,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1807834357, now seen corresponding path program 1 times [2024-11-28 02:09:16,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:09:16,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677613973] [2024-11-28 02:09:16,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:16,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:09:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:16,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:09:16,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677613973] [2024-11-28 02:09:16,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677613973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:09:16,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414348863] [2024-11-28 02:09:16,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:16,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:09:16,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:16,702 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:09:16,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:09:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:16,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:09:16,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:16,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:09:16,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414348863] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:09:16,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:09:16,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-28 02:09:16,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367929663] [2024-11-28 02:09:16,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:09:16,925 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:09:16,925 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:09:16,926 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:09:16,926 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:09:16,926 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:09:16,926 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:16,926 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:09:16,926 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:09:16,927 INFO L132 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration1_Loop [2024-11-28 02:09:16,927 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:09:16,927 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:09:16,939 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:16,956 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:16,963 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:17,029 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:09:17,030 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:09:17,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:17,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:17,035 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:17,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-28 02:09:17,038 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:09:17,038 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:09:17,056 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:09:17,056 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=4} Honda state: {ULTIMATE.start_main_~k~0#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:09:17,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-28 02:09:17,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:17,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:17,065 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:17,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-28 02:09:17,070 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:09:17,070 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:09:17,089 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:09:17,089 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=20} Honda state: {ULTIMATE.start_main_~j~0#1=20} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:09:17,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-28 02:09:17,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:17,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:17,097 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:17,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-28 02:09:17,100 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:09:17,100 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:09:17,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-28 02:09:17,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:17,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:17,128 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:17,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-28 02:09:17,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:09:17,132 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:09:17,164 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 02:09:17,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:09:17,169 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:09:17,169 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:09:17,169 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:09:17,169 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:09:17,169 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 02:09:17,170 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:17,170 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:09:17,170 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:09:17,170 INFO L132 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration1_Loop [2024-11-28 02:09:17,170 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:09:17,170 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:09:17,171 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:17,181 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:17,189 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:17,251 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:09:17,255 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 02:09:17,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:17,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:17,259 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:17,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-28 02:09:17,265 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 [2024-11-28 02:09:17,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:09:17,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:09:17,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:09:17,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:09:17,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:09:17,292 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:09:17,292 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:09:17,296 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:09:17,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-28 02:09:17,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:17,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:17,308 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:17,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-28 02:09:17,313 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 [2024-11-28 02:09:17,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:09:17,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:09:17,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:09:17,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:09:17,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:09:17,330 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:09:17,330 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:09:17,333 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:09:17,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-28 02:09:17,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:17,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:17,345 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:17,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-28 02:09:17,350 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 [2024-11-28 02:09:17,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:09:17,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:09:17,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:09:17,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:09:17,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:09:17,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:09:17,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:09:17,377 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 02:09:17,382 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 02:09:17,385 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 02:09:17,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:17,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:17,391 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:17,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-28 02:09:17,414 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 02:09:17,414 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 02:09:17,414 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 02:09:17,415 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 201 Supporting invariants [] [2024-11-28 02:09:17,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-28 02:09:17,428 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 02:09:17,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:17,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:09:17,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:17,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:09:17,501 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:17,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:09:17,659 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-28 02:09:17,661 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 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 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:09:17,733 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 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 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 47 states and 68 transitions. Complement of second has 8 states. [2024-11-28 02:09:17,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:09:17,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:09:17,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 42 transitions. [2024-11-28 02:09:17,752 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 42 transitions. Stem has 2 letters. Loop has 5 letters. [2024-11-28 02:09:17,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:09:17,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 42 transitions. Stem has 7 letters. Loop has 5 letters. [2024-11-28 02:09:17,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:09:17,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 42 transitions. Stem has 2 letters. Loop has 10 letters. [2024-11-28 02:09:17,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:09:17,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 68 transitions. [2024-11-28 02:09:17,761 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-28 02:09:17,763 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 18 states and 24 transitions. [2024-11-28 02:09:17,764 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-28 02:09:17,765 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-11-28 02:09:17,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2024-11-28 02:09:17,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:09:17,766 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 24 transitions. [2024-11-28 02:09:17,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2024-11-28 02:09:17,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2024-11-28 02:09:17,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:09:17,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2024-11-28 02:09:17,788 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 22 transitions. [2024-11-28 02:09:17,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:09:17,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:09:17,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:09:17,790 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2024-11-28 02:09:17,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:09:17,815 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2024-11-28 02:09:17,815 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2024-11-28 02:09:17,816 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-28 02:09:17,817 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 27 transitions. [2024-11-28 02:09:17,817 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-28 02:09:17,817 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-28 02:09:17,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2024-11-28 02:09:17,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:09:17,818 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 27 transitions. [2024-11-28 02:09:17,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2024-11-28 02:09:17,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2024-11-28 02:09:17,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 17 states have internal predecessors, (25), 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) [2024-11-28 02:09:17,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2024-11-28 02:09:17,820 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 25 transitions. [2024-11-28 02:09:17,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:09:17,821 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2024-11-28 02:09:17,821 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 02:09:17,822 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2024-11-28 02:09:17,822 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-28 02:09:17,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:09:17,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:09:17,823 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-28 02:09:17,823 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 02:09:17,823 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100;" "assume main_~i~0#1 <= 100;" "main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~j~0#1 < 20;" [2024-11-28 02:09:17,823 INFO L749 eck$LassoCheckResult]: Loop: "main_~j~0#1 := main_~i~0#1 + main_~j~0#1;" "assume main_~j~0#1 < 20;" [2024-11-28 02:09:17,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:17,824 INFO L85 PathProgramCache]: Analyzing trace with hash 28696811, now seen corresponding path program 1 times [2024-11-28 02:09:17,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:09:17,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190689570] [2024-11-28 02:09:17,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:17,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:09:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:09:17,836 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:09:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:09:17,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:09:17,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:17,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1661, now seen corresponding path program 1 times [2024-11-28 02:09:17,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:09:17,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046586035] [2024-11-28 02:09:17,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:17,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:09:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:09:17,847 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:09:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:09:17,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:09:17,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:17,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1807832295, now seen corresponding path program 1 times [2024-11-28 02:09:17,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:09:17,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919276032] [2024-11-28 02:09:17,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:17,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:09:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:09:17,865 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:09:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:09:17,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:09:18,045 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:09:18,046 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:09:18,046 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:09:18,046 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:09:18,046 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 02:09:18,046 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:18,046 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:09:18,046 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:09:18,046 INFO L132 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Lasso [2024-11-28 02:09:18,046 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:09:18,046 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:09:18,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:18,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:18,065 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:18,084 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:18,089 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:18,101 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:18,122 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:18,257 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:09:18,258 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 02:09:18,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:18,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:18,260 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:18,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-28 02:09:18,264 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 [2024-11-28 02:09:18,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:09:18,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:09:18,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:09:18,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:09:18,284 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 02:09:18,284 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 02:09:18,292 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 02:09:18,304 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2024-11-28 02:09:18,304 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-28 02:09:18,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:18,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:18,308 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:18,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-28 02:09:18,312 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 02:09:18,329 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-11-28 02:09:18,329 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 02:09:18,330 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~i~0#1 - 2*ULTIMATE.start_main_~j~0#1 + 39 Supporting invariants [1*ULTIMATE.start_main_~i~0#1 - 1 >= 0] [2024-11-28 02:09:18,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-28 02:09:18,346 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2024-11-28 02:09:18,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:18,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:09:18,392 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:18,436 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:09:18,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:18,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:09:18,461 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2024-11-28 02:09:18,461 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:09:18,529 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 10. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 43 transitions. Complement of second has 6 states. [2024-11-28 02:09:18,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 02:09:18,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:09:18,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2024-11-28 02:09:18,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-28 02:09:18,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:09:18,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 7 letters. Loop has 2 letters. [2024-11-28 02:09:18,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:09:18,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 5 letters. Loop has 4 letters. [2024-11-28 02:09:18,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:09:18,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 43 transitions. [2024-11-28 02:09:18,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 02:09:18,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 27 states and 37 transitions. [2024-11-28 02:09:18,534 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-28 02:09:18,534 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-28 02:09:18,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 37 transitions. [2024-11-28 02:09:18,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:09:18,536 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 37 transitions. [2024-11-28 02:09:18,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 37 transitions. [2024-11-28 02:09:18,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-28 02:09:18,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 26 states have internal predecessors, (37), 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) [2024-11-28 02:09:18,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2024-11-28 02:09:18,539 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 37 transitions. [2024-11-28 02:09:18,539 INFO L425 stractBuchiCegarLoop]: Abstraction has 27 states and 37 transitions. [2024-11-28 02:09:18,539 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 02:09:18,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 37 transitions. [2024-11-28 02:09:18,540 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 02:09:18,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:09:18,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:09:18,540 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:09:18,540 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 02:09:18,540 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100;" "assume main_~i~0#1 <= 100;" "main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~j~0#1 < 20;" "main_~j~0#1 := main_~i~0#1 + main_~j~0#1;" "assume !(main_~j~0#1 < 20);" "main_~k~0#1 := 4;" [2024-11-28 02:09:18,541 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~k~0#1 <= 3;" "main_~k~0#1 := 1 + main_~k~0#1;" [2024-11-28 02:09:18,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:18,541 INFO L85 PathProgramCache]: Analyzing trace with hash 208226385, now seen corresponding path program 1 times [2024-11-28 02:09:18,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:09:18,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259782555] [2024-11-28 02:09:18,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:18,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:09:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:18,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:09:18,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259782555] [2024-11-28 02:09:18,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259782555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:09:18,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301000155] [2024-11-28 02:09:18,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:18,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:09:18,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:18,686 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:09:18,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 02:09:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:18,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:09:18,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:18,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-28 02:09:18,826 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:09:18,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301000155] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:09:18,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:09:18,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 02:09:18,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869223692] [2024-11-28 02:09:18,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:09:18,873 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 02:09:18,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:18,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1989, now seen corresponding path program 1 times [2024-11-28 02:09:18,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:09:18,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797617030] [2024-11-28 02:09:18,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:18,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:09:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:09:18,876 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:09:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:09:18,879 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:09:18,894 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:09:18,894 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:09:18,895 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:09:18,895 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:09:18,895 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:09:18,895 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:18,895 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:09:18,895 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:09:18,895 INFO L132 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration3_Loop [2024-11-28 02:09:18,895 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:09:18,895 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:09:18,896 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:18,917 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:09:18,918 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:09:18,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:18,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:18,920 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:18,923 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:09:18,923 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:09:18,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-28 02:09:18,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-28 02:09:18,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:18,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:18,952 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:18,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-28 02:09:18,954 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:09:18,954 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:09:18,990 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 02:09:18,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-28 02:09:18,995 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:09:18,995 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:09:18,995 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:09:18,995 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:09:18,995 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 02:09:18,995 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:18,995 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:09:18,995 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:09:18,996 INFO L132 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration3_Loop [2024-11-28 02:09:18,996 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:09:18,996 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:09:18,996 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:19,031 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:09:19,031 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 02:09:19,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:19,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:19,034 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:19,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-28 02:09:19,037 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 [2024-11-28 02:09:19,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:09:19,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:09:19,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:09:19,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:09:19,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:09:19,053 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:09:19,053 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:09:19,056 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 02:09:19,059 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 02:09:19,059 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 02:09:19,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:19,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:19,064 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:19,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-28 02:09:19,066 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 02:09:19,066 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 02:09:19,066 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 02:09:19,066 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1) = -2*ULTIMATE.start_main_~k~0#1 + 7 Supporting invariants [] [2024-11-28 02:09:19,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-28 02:09:19,077 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 02:09:19,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:19,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:09:19,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:19,134 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:09:19,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:19,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:09:19,159 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 [2024-11-28 02:09:19,159 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 37 transitions. cyclomatic complexity: 14 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) [2024-11-28 02:09:19,188 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 37 transitions. cyclomatic complexity: 14. 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 80 states and 109 transitions. Complement of second has 7 states. [2024-11-28 02:09:19,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:09:19,189 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) [2024-11-28 02:09:19,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-28 02:09:19,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 2 letters. [2024-11-28 02:09:19,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:09:19,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 2 letters. [2024-11-28 02:09:19,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:09:19,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 4 letters. [2024-11-28 02:09:19,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:09:19,191 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 109 transitions. [2024-11-28 02:09:19,196 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 02:09:19,197 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 52 states and 72 transitions. [2024-11-28 02:09:19,197 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-28 02:09:19,197 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-28 02:09:19,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 72 transitions. [2024-11-28 02:09:19,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:09:19,198 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 72 transitions. [2024-11-28 02:09:19,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 72 transitions. [2024-11-28 02:09:19,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 27. [2024-11-28 02:09:19,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 26 states have internal predecessors, (36), 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) [2024-11-28 02:09:19,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2024-11-28 02:09:19,203 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 36 transitions. [2024-11-28 02:09:19,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:09:19,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:09:19,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:09:19,205 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 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) [2024-11-28 02:09:19,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:09:19,277 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2024-11-28 02:09:19,277 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 42 transitions. [2024-11-28 02:09:19,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 02:09:19,278 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 31 states and 40 transitions. [2024-11-28 02:09:19,278 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-28 02:09:19,278 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-28 02:09:19,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 40 transitions. [2024-11-28 02:09:19,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:09:19,282 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 40 transitions. [2024-11-28 02:09:19,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 40 transitions. [2024-11-28 02:09:19,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-28 02:09:19,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 30 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) [2024-11-28 02:09:19,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2024-11-28 02:09:19,285 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 40 transitions. [2024-11-28 02:09:19,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:09:19,290 INFO L425 stractBuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2024-11-28 02:09:19,290 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 02:09:19,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 40 transitions. [2024-11-28 02:09:19,290 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 02:09:19,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:09:19,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:09:19,291 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 1, 1, 1] [2024-11-28 02:09:19,291 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 02:09:19,291 INFO L747 eck$LassoCheckResult]: Stem: "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);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100;" "assume main_~i~0#1 <= 100;" "main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~j~0#1 < 20;" "main_~j~0#1 := main_~i~0#1 + main_~j~0#1;" "assume main_~j~0#1 < 20;" "main_~j~0#1 := main_~i~0#1 + main_~j~0#1;" "assume main_~j~0#1 < 20;" "main_~j~0#1 := main_~i~0#1 + main_~j~0#1;" "assume !(main_~j~0#1 < 20);" "main_~k~0#1 := 4;" "assume !(main_~k~0#1 <= 3);" "assume main_~i~0#1 <= 100;" "main_~i~0#1 := 1 + main_~i~0#1;" "assume !(main_~j~0#1 < 20);" "main_~k~0#1 := 4;" [2024-11-28 02:09:19,291 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~k~0#1 <= 3;" "main_~k~0#1 := 1 + main_~k~0#1;" [2024-11-28 02:09:19,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:19,292 INFO L85 PathProgramCache]: Analyzing trace with hash 2084345075, now seen corresponding path program 1 times [2024-11-28 02:09:19,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:09:19,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108374344] [2024-11-28 02:09:19,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:19,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:09:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:19,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:09:19,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108374344] [2024-11-28 02:09:19,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108374344] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:09:19,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828187041] [2024-11-28 02:09:19,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:19,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:09:19,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:19,516 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:09:19,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 02:09:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:19,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:09:19,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:19,696 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:09:19,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828187041] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:09:19,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:09:19,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2024-11-28 02:09:19,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206534696] [2024-11-28 02:09:19,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:09:19,810 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 02:09:19,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:19,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1989, now seen corresponding path program 2 times [2024-11-28 02:09:19,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:09:19,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961033973] [2024-11-28 02:09:19,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:19,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:09:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:09:19,816 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:09:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:09:19,818 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:09:19,841 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:09:19,841 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:09:19,842 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:09:19,842 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:09:19,842 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:09:19,842 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:19,842 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:09:19,842 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:09:19,842 INFO L132 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2024-11-28 02:09:19,842 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:09:19,842 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:09:19,843 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:19,866 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:09:19,866 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:09:19,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:19,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:19,870 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:19,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-28 02:09:19,873 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:09:19,873 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:09:19,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-28 02:09:19,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:19,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:19,901 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:19,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-28 02:09:19,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:09:19,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:09:19,936 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 02:09:19,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-28 02:09:19,941 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:09:19,941 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:09:19,941 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:09:19,941 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:09:19,941 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 02:09:19,941 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:19,941 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:09:19,941 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:09:19,941 INFO L132 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2024-11-28 02:09:19,941 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:09:19,941 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:09:19,944 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:09:19,965 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:09:19,965 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 02:09:19,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:19,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:19,967 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:19,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-28 02:09:19,972 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 [2024-11-28 02:09:19,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:09:19,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:09:19,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:09:19,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:09:19,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:09:19,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:09:19,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:09:19,990 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 02:09:19,993 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 02:09:19,993 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 02:09:19,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:09:19,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:19,998 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:19,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-28 02:09:20,000 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 02:09:20,000 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 02:09:20,000 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 02:09:20,000 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1) = -2*ULTIMATE.start_main_~k~0#1 + 7 Supporting invariants [] [2024-11-28 02:09:20,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-28 02:09:20,010 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 02:09:20,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:20,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:09:20,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:20,076 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:09:20,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:20,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:09:20,093 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 [2024-11-28 02:09:20,093 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 40 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:09:20,126 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 40 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 100 transitions. Complement of second has 7 states. [2024-11-28 02:09:20,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:09:20,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:09:20,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-28 02:09:20,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 17 letters. Loop has 2 letters. [2024-11-28 02:09:20,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:09:20,128 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 02:09:20,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:20,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:09:20,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:20,186 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:09:20,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:20,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:09:20,210 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 [2024-11-28 02:09:20,210 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 40 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:09:20,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-28 02:09:20,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-28 02:09:20,260 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 40 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 100 transitions. Complement of second has 7 states. [2024-11-28 02:09:20,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:09:20,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:09:20,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-28 02:09:20,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 17 letters. Loop has 2 letters. [2024-11-28 02:09:20,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:09:20,264 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 02:09:20,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:20,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:09:20,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:20,331 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:09:20,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:20,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:09:20,352 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 [2024-11-28 02:09:20,352 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 40 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:09:20,384 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 40 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 57 states and 74 transitions. Complement of second has 6 states. [2024-11-28 02:09:20,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:09:20,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:09:20,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2024-11-28 02:09:20,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 17 letters. Loop has 2 letters. [2024-11-28 02:09:20,387 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:09:20,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 19 letters. Loop has 2 letters. [2024-11-28 02:09:20,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:09:20,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 17 letters. Loop has 4 letters. [2024-11-28 02:09:20,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:09:20,388 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 74 transitions. [2024-11-28 02:09:20,389 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 02:09:20,389 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 0 states and 0 transitions. [2024-11-28 02:09:20,389 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-28 02:09:20,389 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-28 02:09:20,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-28 02:09:20,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 02:09:20,389 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:09:20,389 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:09:20,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:09:20,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 02:09:20,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:09:20,390 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 16 states, 16 states have (on average 2.1875) internal successors, (35), 16 states have internal predecessors, (35), 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) [2024-11-28 02:09:20,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:09:20,390 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-28 02:09:20,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-28 02:09:20,390 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 02:09:20,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:09:20,391 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-28 02:09:20,391 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-28 02:09:20,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-28 02:09:20,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 02:09:20,391 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:09:20,391 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:09:20,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:09:20,391 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:09:20,391 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 02:09:20,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:09:20,391 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 02:09:20,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-28 02:09:20,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:09:20 BoogieIcfgContainer [2024-11-28 02:09:20,400 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 02:09:20,401 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:09:20,401 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:09:20,401 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:09:20,402 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:09:16" (3/4) ... [2024-11-28 02:09:20,404 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:09:20,405 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:09:20,406 INFO L158 Benchmark]: Toolchain (without parser) took 4748.13ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 80.3MB in the end (delta: 12.9MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2024-11-28 02:09:20,406 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:09:20,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.71ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 82.4MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:09:20,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.26ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 81.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:09:20,407 INFO L158 Benchmark]: Boogie Preprocessor took 41.19ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 80.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:09:20,407 INFO L158 Benchmark]: RCFGBuilder took 277.62ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 71.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:09:20,407 INFO L158 Benchmark]: BuchiAutomizer took 4123.95ms. Allocated memory is still 117.4MB. Free memory was 71.2MB in the beginning and 80.4MB in the end (delta: -9.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:09:20,408 INFO L158 Benchmark]: Witness Printer took 4.03ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 80.3MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:09:20,409 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.71ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 82.4MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.26ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 81.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.19ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 80.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 277.62ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 71.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4123.95ms. Allocated memory is still 117.4MB. Free memory was 71.2MB in the beginning and 80.4MB in the end (delta: -9.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.03ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 80.3MB 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 7 terminating modules (3 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long long) -2 * i) + 201) and consists of 5 locations. One deterministic module has affine ranking function ((((long long) -2 * i) + ((long long) -2 * j)) + 39) and consists of 5 locations. One deterministic module has affine ranking function (7 + ((long long) -2 * k)) and consists of 4 locations. One nondeterministic module has affine ranking function (7 + ((long long) -2 * k)) and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 2.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 29 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 96 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 91 mSDsluCounter, 178 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 90 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso1 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp79 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf93 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 71ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-28 02:09:20,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-28 02:09:20,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 02:09:20,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-28 02:09:21,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:09:21,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac952da-96da-415e-bd4a-2570fe23a717/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE