./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/array16_alloca_original.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/array16_alloca_original.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 628be9b0d43b46482b2f1f32ff1648acbb8b41e569549b972a02e76fffda9076 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:33:29,889 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:33:30,014 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 15:33:30,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:33:30,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:33:30,062 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:33:30,063 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:33:30,063 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:33:30,064 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:33:30,064 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:33:30,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:33:30,064 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:33:30,064 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:33:30,065 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 15:33:30,065 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 15:33:30,065 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 15:33:30,065 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 15:33:30,065 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 15:33:30,065 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 15:33:30,065 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:33:30,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 15:33:30,066 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:33:30,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:33:30,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 15:33:30,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 15:33:30,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 15:33:30,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:33:30,066 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:33:30,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:33:30,067 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 15:33:30,067 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:33:30,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:33:30,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:33:30,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:33:30,067 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:33:30,068 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 15:33:30,068 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_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 628be9b0d43b46482b2f1f32ff1648acbb8b41e569549b972a02e76fffda9076 [2024-11-13 15:33:30,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:33:30,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:33:30,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:33:30,463 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:33:30,464 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:33:30,465 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-15/array16_alloca_original.i Unable to find full path for "g++" [2024-11-13 15:33:32,682 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:33:33,177 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:33:33,178 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/sv-benchmarks/c/termination-15/array16_alloca_original.i [2024-11-13 15:33:33,198 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/data/1431b8162/592b2b1ded434c9bb56a38b058065fa7/FLAGadf30ea6c [2024-11-13 15:33:33,227 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/data/1431b8162/592b2b1ded434c9bb56a38b058065fa7 [2024-11-13 15:33:33,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:33:33,234 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:33:33,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:33:33,237 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:33:33,250 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:33:33,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:33:33" (1/1) ... [2024-11-13 15:33:33,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@555d94d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:33, skipping insertion in model container [2024-11-13 15:33:33,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:33:33" (1/1) ... [2024-11-13 15:33:33,302 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:33:33,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:33:33,744 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:33:33,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:33:33,860 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:33:33,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:33 WrapperNode [2024-11-13 15:33:33,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:33:33,862 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:33:33,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:33:33,862 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:33:33,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:33" (1/1) ... [2024-11-13 15:33:33,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:33" (1/1) ... [2024-11-13 15:33:33,907 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2024-11-13 15:33:33,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:33:33,908 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:33:33,908 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:33:33,908 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:33:33,918 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:33" (1/1) ... [2024-11-13 15:33:33,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:33" (1/1) ... [2024-11-13 15:33:33,921 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:33" (1/1) ... [2024-11-13 15:33:33,934 INFO L175 MemorySlicer]: Split 4 memory accesses to 1 slices as follows [4]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 2 writes are split as follows [2]. [2024-11-13 15:33:33,935 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:33" (1/1) ... [2024-11-13 15:33:33,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:33" (1/1) ... [2024-11-13 15:33:33,941 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:33" (1/1) ... [2024-11-13 15:33:33,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:33" (1/1) ... [2024-11-13 15:33:33,946 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:33" (1/1) ... [2024-11-13 15:33:33,947 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:33" (1/1) ... [2024-11-13 15:33:33,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:33:33,950 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:33:33,950 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:33:33,950 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:33:33,955 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:33" (1/1) ... [2024-11-13 15:33:33,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:33,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:34,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:34,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 15:33:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 15:33:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 15:33:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 15:33:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:33:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:33:34,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:33:34,158 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:33:34,160 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:33:34,391 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-13 15:33:34,391 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:33:34,405 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:33:34,406 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 15:33:34,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:33:34 BoogieIcfgContainer [2024-11-13 15:33:34,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:33:34,407 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 15:33:34,407 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 15:33:34,413 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 15:33:34,414 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:33:34,414 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 03:33:33" (1/3) ... [2024-11-13 15:33:34,415 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@159023c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:33:34, skipping insertion in model container [2024-11-13 15:33:34,416 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:33:34,416 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:33:33" (2/3) ... [2024-11-13 15:33:34,416 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@159023c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:33:34, skipping insertion in model container [2024-11-13 15:33:34,416 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:33:34,416 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:33:34" (3/3) ... [2024-11-13 15:33:34,418 INFO L333 chiAutomizerObserver]: Analyzing ICFG array16_alloca_original.i [2024-11-13 15:33:34,486 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 15:33:34,486 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 15:33:34,487 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 15:33:34,487 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 15:33:34,487 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 15:33:34,488 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 15:33:34,488 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 15:33:34,489 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 15:33:34,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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) [2024-11-13 15:33:34,520 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2024-11-13 15:33:34,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:33:34,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:33:34,527 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-13 15:33:34,528 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 15:33:34,528 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 15:33:34,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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) [2024-11-13 15:33:34,529 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2024-11-13 15:33:34,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:33:34,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:33:34,530 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-13 15:33:34,530 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 15:33:34,546 INFO L745 eck$LassoCheckResult]: Stem: 9#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 10#L367true assume !(main_~length~0#1 < 1); 6#L367-2true call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 3#L369true assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 14#L370-2true [2024-11-13 15:33:34,546 INFO L747 eck$LassoCheckResult]: Loop: 14#L370-2true assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 11#L372true assume 1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2);havoc main_#t~mem208#1;call write~int#0(0, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 15#L372-2true main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 14#L370-2true [2024-11-13 15:33:34,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:34,554 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2024-11-13 15:33:34,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:34,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717957850] [2024-11-13 15:33:34,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:34,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:34,718 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:34,760 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:34,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:34,764 INFO L85 PathProgramCache]: Analyzing trace with hash 51737, now seen corresponding path program 1 times [2024-11-13 15:33:34,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:34,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503992416] [2024-11-13 15:33:34,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:34,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:34,812 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:34,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:34,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:34,846 INFO L85 PathProgramCache]: Analyzing trace with hash 176707665, now seen corresponding path program 1 times [2024-11-13 15:33:34,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:34,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713066534] [2024-11-13 15:33:34,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:34,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:34,894 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:34,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:35,491 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:33:35,492 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:33:35,492 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:33:35,494 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:33:35,495 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:33:35,495 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:35,495 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:33:35,495 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:33:35,496 INFO L132 ssoRankerPreferences]: Filename of dumped script: array16_alloca_original.i_Iteration1_Lasso [2024-11-13 15:33:35,496 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:33:35,496 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:33:35,518 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:35,531 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:35,537 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:35,846 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:35,852 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:35,856 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:35,861 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:35,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:35,873 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:35,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:35,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:36,261 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:33:36,266 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:33:36,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:36,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:36,272 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:36,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-13 15:33:36,276 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:36,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:36,294 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:33:36,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:36,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:36,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:36,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:33:36,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:33:36,305 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:36,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-13 15:33:36,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:36,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:36,329 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:36,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-13 15:33:36,332 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:36,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:36,350 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:33:36,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:36,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:36,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:36,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:33:36,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:33:36,355 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:36,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-13 15:33:36,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:36,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:36,378 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:36,381 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:36,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-13 15:33:36,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:36,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:36,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:36,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:36,404 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:33:36,404 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:33:36,416 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:36,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-13 15:33:36,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:36,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:36,438 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:36,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-13 15:33:36,442 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:36,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:36,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:36,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:36,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:36,461 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:33:36,462 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:33:36,471 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:36,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-13 15:33:36,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:36,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:36,495 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:36,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-13 15:33:36,498 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:36,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:36,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:36,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:36,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:36,534 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:33:36,534 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:33:36,558 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:33:36,609 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2024-11-13 15:33:36,614 INFO L444 ModelExtractionUtils]: 1 out of 19 variables were initially zero. Simplification set additionally 14 variables to zero. [2024-11-13 15:33:36,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:36,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:36,622 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:36,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-13 15:33:36,625 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:33:36,643 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-11-13 15:33:36,644 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:33:36,644 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~arr~0#1.offset, v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_1, ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~arr~0#1.offset + 2*v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_1 - 4*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-13 15:33:36,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-13 15:33:36,680 INFO L156 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2024-11-13 15:33:36,689 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-13 15:33:36,690 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-13 15:33:36,693 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~arr~0!offset [2024-11-13 15:33:36,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:36,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:33:36,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:36,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:33:36,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:36,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:36,873 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 15:33:36,876 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:36,939 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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). Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 40 transitions. Complement of second has 6 states. [2024-11-13 15:33:36,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:33:36,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:36,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2024-11-13 15:33:36,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-13 15:33:36,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:33:36,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-13 15:33:36,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:33:36,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 5 letters. Loop has 6 letters. [2024-11-13 15:33:36,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:33:36,959 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 40 transitions. [2024-11-13 15:33:36,961 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:33:36,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 12 states and 17 transitions. [2024-11-13 15:33:36,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-13 15:33:36,966 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-13 15:33:36,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2024-11-13 15:33:36,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:33:36,968 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-13 15:33:36,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2024-11-13 15:33:36,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-13 15:33:36,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:36,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2024-11-13 15:33:36,998 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-13 15:33:36,998 INFO L424 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-13 15:33:36,998 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 15:33:36,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2024-11-13 15:33:36,999 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:33:36,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:33:36,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:33:37,000 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:37,000 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:33:37,000 INFO L745 eck$LassoCheckResult]: Stem: 108#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 109#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 110#L367 assume !(main_~length~0#1 < 1); 103#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 104#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 105#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 111#L370-3 main_~j~0#1 := 0; 107#L378-2 [2024-11-13 15:33:37,001 INFO L747 eck$LassoCheckResult]: Loop: 107#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 106#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 107#L378-2 [2024-11-13 15:33:37,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:37,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815510, now seen corresponding path program 1 times [2024-11-13 15:33:37,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:37,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52888807] [2024-11-13 15:33:37,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:37,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:37,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:37,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:37,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52888807] [2024-11-13 15:33:37,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52888807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:37,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:33:37,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:33:37,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991598165] [2024-11-13 15:33:37,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:37,156 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 15:33:37,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:37,159 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 1 times [2024-11-13 15:33:37,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:37,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100259697] [2024-11-13 15:33:37,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:37,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:37,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:37,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-13 15:33:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:37,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:37,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:37,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:33:37,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:33:37,342 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. cyclomatic complexity: 7 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) [2024-11-13 15:33:37,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:37,389 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2024-11-13 15:33:37,389 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2024-11-13 15:33:37,390 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:33:37,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 19 transitions. [2024-11-13 15:33:37,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-13 15:33:37,392 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-13 15:33:37,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2024-11-13 15:33:37,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:33:37,394 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2024-11-13 15:33:37,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2024-11-13 15:33:37,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2024-11-13 15:33:37,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:37,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2024-11-13 15:33:37,397 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-11-13 15:33:37,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:33:37,400 INFO L424 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-11-13 15:33:37,400 INFO L331 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-13 15:33:37,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2024-11-13 15:33:37,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:33:37,401 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:33:37,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:33:37,402 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:37,402 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:33:37,402 INFO L745 eck$LassoCheckResult]: Stem: 141#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 142#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 143#L367 assume !(main_~length~0#1 < 1); 136#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 137#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 138#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 145#L372 assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1; 146#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 147#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 144#L370-3 main_~j~0#1 := 0; 140#L378-2 [2024-11-13 15:33:37,402 INFO L747 eck$LassoCheckResult]: Loop: 140#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 139#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 140#L378-2 [2024-11-13 15:33:37,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:37,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1982565540, now seen corresponding path program 1 times [2024-11-13 15:33:37,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:37,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600961592] [2024-11-13 15:33:37,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:37,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:37,441 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:37,478 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:37,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:37,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 2 times [2024-11-13 15:33:37,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:37,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725829083] [2024-11-13 15:33:37,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:37,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:37,495 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:37,513 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:37,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:37,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1719996799, now seen corresponding path program 1 times [2024-11-13 15:33:37,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:37,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288127661] [2024-11-13 15:33:37,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:37,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:37,568 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:37,612 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:38,091 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:33:38,091 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:33:38,091 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:33:38,091 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:33:38,091 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:33:38,091 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:38,092 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:33:38,092 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:33:38,092 INFO L132 ssoRankerPreferences]: Filename of dumped script: array16_alloca_original.i_Iteration3_Lasso [2024-11-13 15:33:38,092 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:33:38,092 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:33:38,095 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:38,098 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:38,102 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:38,106 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:38,110 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:38,114 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:38,117 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:38,120 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:38,324 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:38,327 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:38,331 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:38,770 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:33:38,770 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:33:38,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:38,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:38,773 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:38,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-13 15:33:38,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:38,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:38,795 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:33:38,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:38,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:38,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:38,797 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:33:38,797 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:33:38,799 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:38,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-13 15:33:38,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:38,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:38,824 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:38,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-13 15:33:38,847 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:38,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:38,867 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:33:38,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:38,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:38,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:38,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:33:38,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:33:38,871 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:38,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-13 15:33:38,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:38,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:38,896 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:38,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-13 15:33:38,901 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:38,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:38,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:33:38,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:38,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:38,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:38,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:33:38,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:33:38,922 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:38,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-13 15:33:38,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:38,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:38,948 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:38,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-13 15:33:38,952 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:38,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:38,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:33:38,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:38,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:38,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:38,970 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:33:38,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:33:38,971 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:38,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-13 15:33:38,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:38,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:38,989 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:38,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-13 15:33:38,990 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:39,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:39,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:33:39,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:39,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:39,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:39,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:33:39,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:33:39,007 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:39,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-13 15:33:39,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:39,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:39,030 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:39,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-13 15:33:39,033 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:39,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:39,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:33:39,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:39,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:39,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:39,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:33:39,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:33:39,051 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:39,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-13 15:33:39,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:39,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:39,073 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:39,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-13 15:33:39,075 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:39,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:39,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:33:39,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:39,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:39,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:39,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:33:39,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:33:39,091 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:39,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-13 15:33:39,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:39,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:39,108 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:39,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-13 15:33:39,109 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:39,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:39,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:39,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:39,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:39,134 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:33:39,134 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:33:39,150 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:33:39,201 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2024-11-13 15:33:39,202 INFO L444 ModelExtractionUtils]: 0 out of 19 variables were initially zero. Simplification set additionally 14 variables to zero. [2024-11-13 15:33:39,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:39,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:39,204 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:39,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-13 15:33:39,207 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:33:39,226 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-11-13 15:33:39,226 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:33:39,226 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, v_rep(select #length ULTIMATE.start_main_#t~malloc206#1.base)_2) = -2*ULTIMATE.start_main_~j~0#1 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc206#1.base)_2 Supporting invariants [-2*ULTIMATE.start_main_~length~0#1 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc206#1.base)_2 >= 0] [2024-11-13 15:33:39,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-13 15:33:39,266 INFO L156 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2024-11-13 15:33:39,270 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-13 15:33:39,271 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-13 15:33:39,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:39,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 15:33:39,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:39,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:33:39,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:39,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:39,584 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2024-11-13 15:33:39,585 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:39,822 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 22 transitions. Complement of second has 10 states. [2024-11-13 15:33:39,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 6 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:33:39,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:39,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 15 transitions. [2024-11-13 15:33:39,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 10 letters. Loop has 2 letters. [2024-11-13 15:33:39,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:33:39,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 12 letters. Loop has 2 letters. [2024-11-13 15:33:39,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:33:39,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 10 letters. Loop has 4 letters. [2024-11-13 15:33:39,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:33:39,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2024-11-13 15:33:39,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:33:39,827 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 22 transitions. [2024-11-13 15:33:39,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-13 15:33:39,827 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-13 15:33:39,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2024-11-13 15:33:39,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:33:39,828 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 22 transitions. [2024-11-13 15:33:39,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2024-11-13 15:33:39,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-13 15:33:39,829 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) [2024-11-13 15:33:39,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2024-11-13 15:33:39,830 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 22 transitions. [2024-11-13 15:33:39,830 INFO L424 stractBuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2024-11-13 15:33:39,830 INFO L331 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-13 15:33:39,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2024-11-13 15:33:39,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:33:39,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:33:39,831 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:33:39,831 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:39,831 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:33:39,832 INFO L745 eck$LassoCheckResult]: Stem: 267#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 268#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 266#L367 assume !(main_~length~0#1 < 1); 259#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 260#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 261#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 272#L372 assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1; 273#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 274#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 269#L370-3 main_~j~0#1 := 0; 270#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 262#L378 assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1; 263#L378-2 [2024-11-13 15:33:39,832 INFO L747 eck$LassoCheckResult]: Loop: 263#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 271#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 263#L378-2 [2024-11-13 15:33:39,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:39,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1719996801, now seen corresponding path program 1 times [2024-11-13 15:33:39,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:39,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547667745] [2024-11-13 15:33:39,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:39,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:39,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:39,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:39,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:39,884 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 3 times [2024-11-13 15:33:39,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:39,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699063408] [2024-11-13 15:33:39,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:39,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:39,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:39,902 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:39,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:39,903 INFO L85 PathProgramCache]: Analyzing trace with hash -645481884, now seen corresponding path program 1 times [2024-11-13 15:33:39,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:39,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651020799] [2024-11-13 15:33:39,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:39,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:40,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:33:40,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:40,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651020799] [2024-11-13 15:33:40,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651020799] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:40,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036044503] [2024-11-13 15:33:40,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:40,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:40,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:40,065 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:33:40,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 15:33:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:40,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:33:40,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:40,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:33:40,163 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:33:40,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036044503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:33:40,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:33:40,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-13 15:33:40,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366136413] [2024-11-13 15:33:40,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:33:40,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:40,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:33:40,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:33:40,244 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:40,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:40,265 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2024-11-13 15:33:40,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 24 transitions. [2024-11-13 15:33:40,266 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:33:40,266 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 17 states and 22 transitions. [2024-11-13 15:33:40,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-13 15:33:40,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-13 15:33:40,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2024-11-13 15:33:40,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:33:40,267 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-11-13 15:33:40,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2024-11-13 15:33:40,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2024-11-13 15:33:40,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:40,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2024-11-13 15:33:40,269 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2024-11-13 15:33:40,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:33:40,270 INFO L424 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2024-11-13 15:33:40,270 INFO L331 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-13 15:33:40,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2024-11-13 15:33:40,270 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:33:40,271 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:33:40,271 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:33:40,271 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:40,271 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:33:40,271 INFO L745 eck$LassoCheckResult]: Stem: 350#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 351#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 352#L367 assume !(main_~length~0#1 < 1); 343#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 344#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 345#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 355#L372 assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1; 356#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 357#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 353#L370-3 main_~j~0#1 := 0; 354#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 348#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 349#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 346#L378 assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1; 347#L378-2 [2024-11-13 15:33:40,272 INFO L747 eck$LassoCheckResult]: Loop: 347#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 358#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 347#L378-2 [2024-11-13 15:33:40,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:40,272 INFO L85 PathProgramCache]: Analyzing trace with hash -645483804, now seen corresponding path program 2 times [2024-11-13 15:33:40,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:40,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410971650] [2024-11-13 15:33:40,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:40,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:40,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-13 15:33:40,487 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:40,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:40,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410971650] [2024-11-13 15:33:40,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410971650] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:40,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11444248] [2024-11-13 15:33:40,488 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:33:40,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:40,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:40,490 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:33:40,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 15:33:40,555 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:33:40,555 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:33:40,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:33:40,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:40,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:40,632 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:33:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:40,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11444248] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:33:40,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:33:40,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-13 15:33:40,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051112490] [2024-11-13 15:33:40,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:33:40,703 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 15:33:40,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:40,704 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 4 times [2024-11-13 15:33:40,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:40,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30147425] [2024-11-13 15:33:40,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:40,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:40,718 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:40,733 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:40,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:40,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:33:40,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:33:40,827 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 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) [2024-11-13 15:33:40,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:40,985 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2024-11-13 15:33:40,985 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2024-11-13 15:33:40,986 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:33:40,987 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 21 states and 27 transitions. [2024-11-13 15:33:40,987 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-13 15:33:40,987 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-13 15:33:40,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2024-11-13 15:33:40,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:33:40,988 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 27 transitions. [2024-11-13 15:33:40,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2024-11-13 15:33:40,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2024-11-13 15:33:40,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:40,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2024-11-13 15:33:40,990 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 24 transitions. [2024-11-13 15:33:40,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:33:40,991 INFO L424 stractBuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2024-11-13 15:33:40,992 INFO L331 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-13 15:33:40,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2024-11-13 15:33:40,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:33:40,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:33:40,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:33:40,993 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:40,993 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:33:40,993 INFO L745 eck$LassoCheckResult]: Stem: 497#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 498#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 499#L367 assume !(main_~length~0#1 < 1); 490#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 491#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 492#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 507#L372 assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1; 505#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 506#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 502#L372 assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1; 503#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 508#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 500#L370-3 main_~j~0#1 := 0; 501#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 495#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 496#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 493#L378 assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1; 494#L378-2 [2024-11-13 15:33:40,993 INFO L747 eck$LassoCheckResult]: Loop: 494#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 504#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 494#L378-2 [2024-11-13 15:33:40,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:40,994 INFO L85 PathProgramCache]: Analyzing trace with hash -686025250, now seen corresponding path program 3 times [2024-11-13 15:33:40,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:40,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667445369] [2024-11-13 15:33:40,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:40,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:41,049 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:41,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:41,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:41,094 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 5 times [2024-11-13 15:33:41,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:41,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424294694] [2024-11-13 15:33:41,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:41,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:41,102 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:41,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:41,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:41,110 INFO L85 PathProgramCache]: Analyzing trace with hash -2140267647, now seen corresponding path program 4 times [2024-11-13 15:33:41,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:41,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084653246] [2024-11-13 15:33:41,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:41,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:41,171 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:41,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:42,039 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:33:42,039 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:33:42,039 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:33:42,039 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:33:42,039 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:33:42,040 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:42,040 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:33:42,040 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:33:42,040 INFO L132 ssoRankerPreferences]: Filename of dumped script: array16_alloca_original.i_Iteration6_Lasso [2024-11-13 15:33:42,040 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:33:42,040 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:33:42,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:42,052 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:42,057 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:42,060 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:42,346 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:42,349 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:42,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:42,356 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:42,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:42,361 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:42,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:33:42,786 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:33:42,786 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:33:42,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:42,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:42,792 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:42,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-13 15:33:42,797 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:42,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:42,815 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:33:42,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:42,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:42,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:42,816 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:33:42,816 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:33:42,821 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:42,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-13 15:33:42,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:42,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:42,845 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:42,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-13 15:33:42,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:42,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:42,867 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:33:42,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:42,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:42,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:42,868 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:33:42,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:33:42,872 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:42,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-13 15:33:42,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:42,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:42,898 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:42,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-13 15:33:42,902 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:42,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:42,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:33:42,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:42,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:42,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:42,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:33:42,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:33:42,924 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:42,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-13 15:33:42,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:42,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:42,945 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:42,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-13 15:33:42,947 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:42,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:42,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:42,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:42,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:42,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:33:42,965 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:33:42,974 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:42,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-13 15:33:42,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:42,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:42,992 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:42,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-13 15:33:42,995 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:43,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:43,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:43,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:43,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:43,012 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:33:43,012 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:33:43,019 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:43,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-13 15:33:43,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:43,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:43,041 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:43,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-13 15:33:43,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:43,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:43,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:43,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:43,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:43,061 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:33:43,061 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:33:43,070 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:43,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-13 15:33:43,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:43,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:43,092 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:43,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-13 15:33:43,094 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:43,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:43,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:43,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:43,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:43,111 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:33:43,111 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:33:43,115 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:43,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-13 15:33:43,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:43,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:43,131 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:43,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-13 15:33:43,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:43,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:43,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:43,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:43,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:43,151 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:33:43,152 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:33:43,160 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:33:43,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-13 15:33:43,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:43,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:43,180 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:43,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-13 15:33:43,182 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:33:43,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:33:43,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:33:43,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:33:43,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:33:43,203 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:33:43,203 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:33:43,225 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:33:43,257 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2024-11-13 15:33:43,257 INFO L444 ModelExtractionUtils]: 0 out of 19 variables were initially zero. Simplification set additionally 16 variables to zero. [2024-11-13 15:33:43,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:33:43,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:43,260 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:33:43,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-13 15:33:43,262 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:33:43,279 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-11-13 15:33:43,280 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:33:43,280 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~length~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2024-11-13 15:33:43,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-13 15:33:43,313 INFO L156 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2024-11-13 15:33:43,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:43,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:33:43,369 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:43,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:33:43,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:43,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:43,435 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 15:33:43,435 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:43,467 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 30 transitions. Complement of second has 5 states. [2024-11-13 15:33:43,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:33:43,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:43,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2024-11-13 15:33:43,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 17 letters. Loop has 2 letters. [2024-11-13 15:33:43,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:33:43,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 19 letters. Loop has 2 letters. [2024-11-13 15:33:43,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:33:43,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 17 letters. Loop has 4 letters. [2024-11-13 15:33:43,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:33:43,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2024-11-13 15:33:43,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:33:43,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2024-11-13 15:33:43,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-13 15:33:43,471 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-13 15:33:43,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2024-11-13 15:33:43,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:33:43,472 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 30 transitions. [2024-11-13 15:33:43,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2024-11-13 15:33:43,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-13 15:33:43,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 22 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:43,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2024-11-13 15:33:43,475 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 30 transitions. [2024-11-13 15:33:43,475 INFO L424 stractBuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2024-11-13 15:33:43,475 INFO L331 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-13 15:33:43,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2024-11-13 15:33:43,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:33:43,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:33:43,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:33:43,477 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:43,477 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:33:43,478 INFO L745 eck$LassoCheckResult]: Stem: 640#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 641#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 642#L367 assume !(main_~length~0#1 < 1); 633#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 634#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 635#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 649#L372 assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1; 651#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 650#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 645#L372 assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1; 646#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 652#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 643#L370-3 main_~j~0#1 := 0; 644#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 638#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 639#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 636#L378 assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1; 637#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 653#L378 assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1; 647#L378-2 [2024-11-13 15:33:43,478 INFO L747 eck$LassoCheckResult]: Loop: 647#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 648#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 647#L378-2 [2024-11-13 15:33:43,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:43,478 INFO L85 PathProgramCache]: Analyzing trace with hash -2140267645, now seen corresponding path program 5 times [2024-11-13 15:33:43,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:43,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513419301] [2024-11-13 15:33:43,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:43,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:33:44,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-13 15:33:45,072 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:45,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:33:45,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513419301] [2024-11-13 15:33:45,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513419301] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:33:45,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673096751] [2024-11-13 15:33:45,073 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-13 15:33:45,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:33:45,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:33:45,076 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:33:45,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-13 15:33:45,177 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-13 15:33:45,177 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:33:45,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 15:33:45,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:33:45,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 15:33:45,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 15:33:45,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 15:33:45,480 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:33:45,480 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:33:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 15:33:45,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673096751] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:33:45,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:33:45,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 5] total 18 [2024-11-13 15:33:45,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744996649] [2024-11-13 15:33:45,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:33:45,612 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 15:33:45,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:45,613 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 6 times [2024-11-13 15:33:45,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:45,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734988625] [2024-11-13 15:33:45,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:45,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:45,622 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:45,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:45,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:33:45,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 15:33:45,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:33:45,711 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand has 19 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 19 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:46,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:33:46,121 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2024-11-13 15:33:46,121 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 50 transitions. [2024-11-13 15:33:46,122 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-13 15:33:46,125 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 39 states and 48 transitions. [2024-11-13 15:33:46,125 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2024-11-13 15:33:46,126 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-11-13 15:33:46,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 48 transitions. [2024-11-13 15:33:46,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:33:46,126 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 48 transitions. [2024-11-13 15:33:46,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 48 transitions. [2024-11-13 15:33:46,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 25. [2024-11-13 15:33:46,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.24) internal successors, (31), 24 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:33:46,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2024-11-13 15:33:46,134 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 31 transitions. [2024-11-13 15:33:46,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 15:33:46,136 INFO L424 stractBuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2024-11-13 15:33:46,137 INFO L331 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-13 15:33:46,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2024-11-13 15:33:46,137 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-13 15:33:46,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:33:46,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:33:46,140 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:33:46,140 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-11-13 15:33:46,140 INFO L745 eck$LassoCheckResult]: Stem: 846#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 847#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 848#L367 assume !(main_~length~0#1 < 1); 839#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 840#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 841#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 856#L372 assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1; 859#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 857#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 854#L372 assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1; 855#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 858#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 849#L370-3 main_~j~0#1 := 0; 850#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 844#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 845#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 861#L378 assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1; 860#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 853#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 852#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 842#L378 assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1; 843#L378-2 [2024-11-13 15:33:46,140 INFO L747 eck$LassoCheckResult]: Loop: 843#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 851#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 862#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 863#L378 assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1; 843#L378-2 [2024-11-13 15:33:46,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:46,141 INFO L85 PathProgramCache]: Analyzing trace with hash 492127334, now seen corresponding path program 6 times [2024-11-13 15:33:46,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:46,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955481847] [2024-11-13 15:33:46,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:46,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:46,183 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:46,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:46,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:46,219 INFO L85 PathProgramCache]: Analyzing trace with hash 2188553, now seen corresponding path program 1 times [2024-11-13 15:33:46,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:46,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839092627] [2024-11-13 15:33:46,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:46,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:46,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:46,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:46,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:33:46,236 INFO L85 PathProgramCache]: Analyzing trace with hash 784592622, now seen corresponding path program 7 times [2024-11-13 15:33:46,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:33:46,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670528246] [2024-11-13 15:33:46,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:33:46,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:33:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:46,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:46,371 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:33:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:47,637 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:33:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:33:47,709 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-13 15:33:47,714 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-13 15:33:47,721 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-13 15:33:47,722 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-13 15:33:47,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 03:33:47 BoogieIcfgContainer [2024-11-13 15:33:47,723 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 15:33:47,724 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:33:47,724 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:33:47,724 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:33:47,725 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:33:34" (3/4) ... [2024-11-13 15:33:47,728 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-13 15:33:47,733 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-13 15:33:47,734 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-13 15:33:47,774 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f6c4bc0-3159-43d0-bf6a-f3742783916e/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:33:47,774 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:33:47,775 INFO L158 Benchmark]: Toolchain (without parser) took 14541.79ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 118.1MB in the beginning and 374.6MB in the end (delta: -256.5MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2024-11-13 15:33:47,776 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:33:47,776 INFO L158 Benchmark]: CACSL2BoogieTranslator took 625.59ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 99.8MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:33:47,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.43ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 98.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:33:47,777 INFO L158 Benchmark]: Boogie Preprocessor took 41.09ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 96.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:33:47,777 INFO L158 Benchmark]: RCFGBuilder took 456.27ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 85.7MB in the end (delta: 11.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:33:47,778 INFO L158 Benchmark]: BuchiAutomizer took 13316.19ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 85.4MB in the beginning and 378.9MB in the end (delta: -293.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:33:47,778 INFO L158 Benchmark]: Witness Printer took 50.19ms. Allocated memory is still 427.8MB. Free memory was 378.9MB in the beginning and 374.6MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:33:47,780 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 625.59ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 99.8MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.43ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 98.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.09ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 96.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 456.27ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 85.7MB in the end (delta: 11.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 13316.19ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 85.4MB in the beginning and 378.9MB in the end (delta: -293.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 50.19ms. Allocated memory is still 427.8MB. Free memory was 378.9MB in the beginning and 374.6MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~arr~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (4 trivial, 3 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function null and consists of 4 locations. One deterministic module has affine ranking function null and consists of 8 locations. One deterministic module has affine ranking function (((long) -1 * j) + length) and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 19 locations. The remainder module has 25 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.2s and 8 iterations. TraceHistogramMax:4. Analysis of lassos took 11.4s. Construction of modules took 0.3s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 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, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 105 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 153 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 315 IncrementalHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 66 mSDtfsCounter, 315 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU3 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital125 mio100 ax100 hnf100 lsp100 ukn77 mio100 lsp51 div185 bol100 ite100 ukn100 eq149 hnf94 smp61 dnf105 smp98 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 3 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 377]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND FALSE !(length < 1) VAL [length=2] [L368] int *arr = __builtin_alloca(length*sizeof(int)); VAL [arr={2:0}, length=2] [L369] COND FALSE !(!arr) [L370] i=0 VAL [arr={2:0}, i=0, length=2] [L370] COND TRUE i