./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/NonTermination3-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/NonTermination3-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a0671ae6ff503095cbeea151b096da898df643465964474a4f3e3c55275f454c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:38:11,294 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:38:11,389 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-28 03:38:11,396 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:38:11,396 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:38:11,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:38:11,420 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:38:11,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:38:11,421 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:38:11,421 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:38:11,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:38:11,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:38:11,422 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:38:11,422 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 03:38:11,422 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 03:38:11,422 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 03:38:11,422 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 03:38:11,423 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 03:38:11,423 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 03:38:11,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:38:11,423 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 03:38:11,423 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:38:11,423 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:38:11,423 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 03:38:11,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 03:38:11,423 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 03:38:11,424 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:38:11,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:38:11,424 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 03:38:11,424 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:38:11,424 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:38:11,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:38:11,424 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:38:11,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:38:11,426 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 03:38:11,427 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 03:38:11,427 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_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0671ae6ff503095cbeea151b096da898df643465964474a4f3e3c55275f454c [2024-11-28 03:38:11,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:38:11,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:38:11,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:38:11,762 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:38:11,762 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:38:11,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted/NonTermination3-2.c [2024-11-28 03:38:14,738 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/data/b5911992b/6aa510b60d054494980be4d4dae61eb2/FLAG1d622fabd [2024-11-28 03:38:15,019 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:38:15,020 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/sv-benchmarks/c/termination-crafted/NonTermination3-2.c [2024-11-28 03:38:15,031 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/data/b5911992b/6aa510b60d054494980be4d4dae61eb2/FLAG1d622fabd [2024-11-28 03:38:15,313 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/data/b5911992b/6aa510b60d054494980be4d4dae61eb2 [2024-11-28 03:38:15,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:38:15,318 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:38:15,321 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:38:15,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:38:15,327 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:38:15,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:15,335 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2585296b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15, skipping insertion in model container [2024-11-28 03:38:15,335 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:15,349 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:38:15,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:38:15,510 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:38:15,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:38:15,550 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:38:15,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15 WrapperNode [2024-11-28 03:38:15,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:38:15,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:38:15,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:38:15,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:38:15,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:15,569 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:15,592 INFO L138 Inliner]: procedures = 8, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2024-11-28 03:38:15,593 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:38:15,593 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:38:15,593 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:38:15,594 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:38:15,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:15,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:15,607 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:15,621 INFO L175 MemorySlicer]: Split 3 memory accesses to 1 slices as follows [3]. 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]. [2024-11-28 03:38:15,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:15,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:15,626 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:15,627 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:15,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:15,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:15,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:15,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:38:15,641 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:38:15,641 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:38:15,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:38:15,642 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:15,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:38:15,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:15,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:38:15,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 03:38:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:38:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:38:15,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:38:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:38:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:38:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:38:15,791 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:38:15,793 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:38:15,903 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-28 03:38:15,903 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:38:15,911 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:38:15,912 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:38:15,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:15 BoogieIcfgContainer [2024-11-28 03:38:15,912 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:38:15,913 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 03:38:15,913 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 03:38:15,919 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 03:38:15,920 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:38:15,920 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:38:15" (1/3) ... [2024-11-28 03:38:15,921 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@518de95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:38:15, skipping insertion in model container [2024-11-28 03:38:15,921 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:38:15,921 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (2/3) ... [2024-11-28 03:38:15,922 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@518de95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:38:15, skipping insertion in model container [2024-11-28 03:38:15,922 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:38:15,922 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:15" (3/3) ... [2024-11-28 03:38:15,923 INFO L363 chiAutomizerObserver]: Analyzing ICFG NonTermination3-2.c [2024-11-28 03:38:15,976 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 03:38:15,977 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 03:38:15,977 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 03:38:15,977 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 03:38:15,977 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 03:38:15,977 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 03:38:15,977 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 03:38:15,978 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 03:38:15,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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) [2024-11-28 03:38:15,997 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-11-28 03:38:15,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:38:15,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:38:16,002 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:38:16,003 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 03:38:16,003 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 03:38:16,003 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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) [2024-11-28 03:38:16,004 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-11-28 03:38:16,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:38:16,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:38:16,005 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:38:16,005 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 03:38:16,012 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~pre2#1, main_~n~0#1, main_#t~mem3#1, main_#t~short4#1, main_#t~nondet5#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(40);main_~n~0#1 := 0;" [2024-11-28 03:38:16,012 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" [2024-11-28 03:38:16,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:16,018 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 03:38:16,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:38:16,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339124282] [2024-11-28 03:38:16,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:16,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:16,108 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:38:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:16,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:38:16,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:16,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1221, now seen corresponding path program 1 times [2024-11-28 03:38:16,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:38:16,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935015490] [2024-11-28 03:38:16,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:16,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:16,143 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:38:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:16,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:38:16,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:16,153 INFO L85 PathProgramCache]: Analyzing trace with hash 925703, now seen corresponding path program 1 times [2024-11-28 03:38:16,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:38:16,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930145996] [2024-11-28 03:38:16,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:16,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:16,174 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:38:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:16,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:38:16,450 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:38:16,451 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:38:16,451 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:38:16,451 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:38:16,452 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 03:38:16,452 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:38:16,452 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:38:16,452 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:38:16,452 INFO L132 ssoRankerPreferences]: Filename of dumped script: NonTermination3-2.c_Iteration1_Lasso [2024-11-28 03:38:16,456 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:38:16,456 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:38:16,475 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:38:16,487 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:38:16,491 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:38:16,499 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:38:16,651 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:38:16,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:38:16,661 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:38:16,666 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:38:16,670 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:38:16,877 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:38:16,881 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 03:38:16,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:38:16,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:16,886 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:38:16,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-28 03:38:16,889 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:38:16,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:38:16,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 03:38:16,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:38:16,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:38:16,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:38:16,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 03:38:16,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 03:38:16,917 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:38:16,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-28 03:38:16,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:38:16,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:16,929 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:38:16,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-28 03:38:16,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:38:16,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:38:16,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 03:38:16,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:38:16,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:38:16,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:38:16,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 03:38:16,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 03:38:16,952 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:38:16,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:38:16,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:38:16,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:16,964 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:38:16,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-28 03:38:16,968 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:38:16,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:38:16,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 03:38:16,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:38:16,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:38:16,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:38:16,984 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 03:38:16,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 03:38:16,987 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:38:16,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:38:16,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:38:16,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:16,999 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:38:17,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-28 03:38:17,005 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:38:17,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:38:17,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:38:17,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:38:17,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:38:17,027 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 03:38:17,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 03:38:17,036 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:38:17,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:38:17,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:38:17,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:17,049 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:38:17,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-28 03:38:17,054 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:38:17,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:38:17,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 03:38:17,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:38:17,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:38:17,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:38:17,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 03:38:17,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 03:38:17,071 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:38:17,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:38:17,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:38:17,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:17,083 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:38:17,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-28 03:38:17,088 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:38:17,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:38:17,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:38:17,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:38:17,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:38:17,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 03:38:17,113 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 03:38:17,131 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 03:38:17,176 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2024-11-28 03:38:17,179 INFO L444 ModelExtractionUtils]: 1 out of 13 variables were initially zero. Simplification set additionally 9 variables to zero. [2024-11-28 03:38:17,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:38:17,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:17,185 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:38:17,191 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 03:38:17,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-28 03:38:17,211 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-11-28 03:38:17,211 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 03:38:17,211 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1) = -8*ULTIMATE.start_main_~n~0#1 + 19*v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1 Supporting invariants [] [2024-11-28 03:38:17,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-28 03:38:17,231 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2024-11-28 03:38:17,243 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-28 03:38:17,244 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-28 03:38:17,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:17,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:38:17,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:17,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:38:17,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:17,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:38:17,359 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 03:38:17,360 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:38:17,405 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 33 transitions. Complement of second has 6 states. [2024-11-28 03:38:17,406 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 [2024-11-28 03:38:17,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:38:17,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-28 03:38:17,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-28 03:38:17,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:38:17,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-28 03:38:17,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:38:17,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-28 03:38:17,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:38:17,419 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 33 transitions. [2024-11-28 03:38:17,421 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:38:17,424 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 10 states and 13 transitions. [2024-11-28 03:38:17,425 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-28 03:38:17,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-28 03:38:17,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2024-11-28 03:38:17,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:38:17,426 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-11-28 03:38:17,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2024-11-28 03:38:17,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-11-28 03:38:17,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:38:17,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2024-11-28 03:38:17,449 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-11-28 03:38:17,449 INFO L425 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-11-28 03:38:17,449 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 03:38:17,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2024-11-28 03:38:17,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:38:17,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:38:17,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:38:17,450 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-28 03:38:17,450 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 03:38:17,451 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~pre2#1, main_~n~0#1, main_#t~mem3#1, main_#t~short4#1, main_#t~nondet5#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(40);main_~n~0#1 := 0;" "assume !(main_~n~0#1 < 10);" "havoc main_~n~0#1;" [2024-11-28 03:38:17,451 INFO L749 eck$LassoCheckResult]: Loop: "main_#t~short4#1 := 0 <= main_~i~0#1 && main_~i~0#1 < 10;" "assume main_#t~short4#1;call main_#t~mem3#1 := read~int#0(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);main_#t~short4#1 := main_#t~mem3#1 >= 0;" "assume main_#t~short4#1;havoc main_#t~mem3#1;havoc main_#t~short4#1;" "call write~int#0(0, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet5#1;main_~i~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" [2024-11-28 03:38:17,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:17,452 INFO L85 PathProgramCache]: Analyzing trace with hash 925769, now seen corresponding path program 1 times [2024-11-28 03:38:17,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:38:17,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587296118] [2024-11-28 03:38:17,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:17,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:17,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:38:17,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587296118] [2024-11-28 03:38:17,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587296118] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:17,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47483746] [2024-11-28 03:38:17,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:17,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:17,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:17,544 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:38:17,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:38:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:17,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:38:17,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:17,595 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:17,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47483746] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:38:17,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:38:17,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-28 03:38:17,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383942617] [2024-11-28 03:38:17,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:38:17,613 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 03:38:17,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:17,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1542376, now seen corresponding path program 1 times [2024-11-28 03:38:17,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:38:17,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802292299] [2024-11-28 03:38:17,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:17,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:17,630 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:38:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:17,643 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:38:17,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:38:17,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:38:17,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:38:17,782 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2024-11-28 03:38:17,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:17,808 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2024-11-28 03:38:17,808 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2024-11-28 03:38:17,809 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:38:17,809 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 14 transitions. [2024-11-28 03:38:17,809 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-28 03:38:17,810 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-28 03:38:17,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 14 transitions. [2024-11-28 03:38:17,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:38:17,810 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-11-28 03:38:17,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 14 transitions. [2024-11-28 03:38:17,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-28 03:38:17,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 11 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) [2024-11-28 03:38:17,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2024-11-28 03:38:17,816 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-11-28 03:38:17,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:38:17,819 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-11-28 03:38:17,819 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 03:38:17,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2024-11-28 03:38:17,820 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:38:17,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:38:17,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:38:17,820 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2024-11-28 03:38:17,820 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 03:38:17,820 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~pre2#1, main_~n~0#1, main_#t~mem3#1, main_#t~short4#1, main_#t~nondet5#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(40);main_~n~0#1 := 0;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume !(main_~n~0#1 < 10);" "havoc main_~n~0#1;" [2024-11-28 03:38:17,820 INFO L749 eck$LassoCheckResult]: Loop: "main_#t~short4#1 := 0 <= main_~i~0#1 && main_~i~0#1 < 10;" "assume main_#t~short4#1;call main_#t~mem3#1 := read~int#0(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);main_#t~short4#1 := main_#t~mem3#1 >= 0;" "assume main_#t~short4#1;havoc main_#t~mem3#1;havoc main_#t~short4#1;" "call write~int#0(0, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet5#1;main_~i~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" [2024-11-28 03:38:17,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:17,821 INFO L85 PathProgramCache]: Analyzing trace with hash 207918545, now seen corresponding path program 1 times [2024-11-28 03:38:17,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:38:17,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555266008] [2024-11-28 03:38:17,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:17,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:17,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:38:17,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555266008] [2024-11-28 03:38:17,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555266008] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:17,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76395395] [2024-11-28 03:38:17,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:17,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:17,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:17,926 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:38:17,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:38:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:17,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:38:17,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:18,005 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:18,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76395395] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:38:18,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:38:18,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-28 03:38:18,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120184105] [2024-11-28 03:38:18,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:38:18,050 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 03:38:18,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:18,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1542376, now seen corresponding path program 2 times [2024-11-28 03:38:18,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:38:18,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851639257] [2024-11-28 03:38:18,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:18,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:18,065 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:38:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:18,075 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:38:18,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-28 03:38:18,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:38:18,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:38:18,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:38:18,215 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 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) [2024-11-28 03:38:18,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:18,261 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2024-11-28 03:38:18,261 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2024-11-28 03:38:18,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:38:18,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 22 transitions. [2024-11-28 03:38:18,262 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-28 03:38:18,262 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-28 03:38:18,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 22 transitions. [2024-11-28 03:38:18,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:38:18,263 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 22 transitions. [2024-11-28 03:38:18,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 22 transitions. [2024-11-28 03:38:18,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-28 03:38:18,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.1) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:38:18,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2024-11-28 03:38:18,264 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 22 transitions. [2024-11-28 03:38:18,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:38:18,267 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2024-11-28 03:38:18,267 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 03:38:18,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 22 transitions. [2024-11-28 03:38:18,267 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:38:18,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:38:18,267 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:38:18,268 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 1, 1, 1, 1] [2024-11-28 03:38:18,268 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 03:38:18,268 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~pre2#1, main_~n~0#1, main_#t~mem3#1, main_#t~short4#1, main_#t~nondet5#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(40);main_~n~0#1 := 0;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume !(main_~n~0#1 < 10);" "havoc main_~n~0#1;" [2024-11-28 03:38:18,268 INFO L749 eck$LassoCheckResult]: Loop: "main_#t~short4#1 := 0 <= main_~i~0#1 && main_~i~0#1 < 10;" "assume main_#t~short4#1;call main_#t~mem3#1 := read~int#0(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);main_#t~short4#1 := main_#t~mem3#1 >= 0;" "assume main_#t~short4#1;havoc main_#t~mem3#1;havoc main_#t~short4#1;" "call write~int#0(0, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet5#1;main_~i~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" [2024-11-28 03:38:18,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:18,269 INFO L85 PathProgramCache]: Analyzing trace with hash -681478943, now seen corresponding path program 2 times [2024-11-28 03:38:18,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:38:18,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270787646] [2024-11-28 03:38:18,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:18,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:18,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:38:18,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270787646] [2024-11-28 03:38:18,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270787646] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:18,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121310287] [2024-11-28 03:38:18,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:18,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:18,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:18,540 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:38:18,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:38:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:18,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:38:18,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:18,637 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:18,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121310287] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:38:18,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:38:18,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2024-11-28 03:38:18,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765165929] [2024-11-28 03:38:18,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:38:18,764 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 03:38:18,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:18,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1542376, now seen corresponding path program 3 times [2024-11-28 03:38:18,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:38:18,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755353015] [2024-11-28 03:38:18,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:18,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:18,775 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:38:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:18,783 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:38:18,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:38:18,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:38:18,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:38:18,917 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. cyclomatic complexity: 4 Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:38:18,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:18,977 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2024-11-28 03:38:18,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 30 transitions. [2024-11-28 03:38:18,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:38:18,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 30 transitions. [2024-11-28 03:38:18,979 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-28 03:38:18,979 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-28 03:38:18,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 30 transitions. [2024-11-28 03:38:18,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:38:18,979 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 30 transitions. [2024-11-28 03:38:18,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 30 transitions. [2024-11-28 03:38:18,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-28 03:38:18,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 27 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) [2024-11-28 03:38:18,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2024-11-28 03:38:18,983 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 30 transitions. [2024-11-28 03:38:18,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:38:18,985 INFO L425 stractBuchiCegarLoop]: Abstraction has 28 states and 30 transitions. [2024-11-28 03:38:18,985 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 03:38:18,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 30 transitions. [2024-11-28 03:38:18,986 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:38:18,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:38:18,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:38:18,987 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1] [2024-11-28 03:38:18,987 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 03:38:18,987 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~pre2#1, main_~n~0#1, main_#t~mem3#1, main_#t~short4#1, main_#t~nondet5#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(40);main_~n~0#1 := 0;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;" "havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume !(main_~n~0#1 < 10);" "havoc main_~n~0#1;" [2024-11-28 03:38:18,987 INFO L749 eck$LassoCheckResult]: Loop: "main_#t~short4#1 := 0 <= main_~i~0#1 && main_~i~0#1 < 10;" "assume main_#t~short4#1;call main_#t~mem3#1 := read~int#0(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);main_#t~short4#1 := main_#t~mem3#1 >= 0;" "assume main_#t~short4#1;havoc main_#t~mem3#1;havoc main_#t~short4#1;" "call write~int#0(0, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet5#1;main_~i~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" [2024-11-28 03:38:18,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:18,987 INFO L85 PathProgramCache]: Analyzing trace with hash -950647823, now seen corresponding path program 3 times [2024-11-28 03:38:18,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:38:18,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894581727] [2024-11-28 03:38:18,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:18,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:19,039 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:38:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:19,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:38:19,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:19,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1542376, now seen corresponding path program 4 times [2024-11-28 03:38:19,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:38:19,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201158537] [2024-11-28 03:38:19,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:19,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:19,111 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:38:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:19,120 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:38:19,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:19,121 INFO L85 PathProgramCache]: Analyzing trace with hash -372615976, now seen corresponding path program 1 times [2024-11-28 03:38:19,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:38:19,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457341138] [2024-11-28 03:38:19,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:19,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:19,185 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:38:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:19,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:38:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:22,943 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:38:23,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:38:23,092 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-28 03:38:23,094 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-28 03:38:23,110 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-28 03:38:23,112 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-28 03:38:23,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:38:23 BoogieIcfgContainer [2024-11-28 03:38:23,115 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 03:38:23,115 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:38:23,115 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:38:23,116 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:38:23,116 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:15" (3/4) ... [2024-11-28 03:38:23,118 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 03:38:23,133 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-28 03:38:23,133 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-28 03:38:23,164 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:38:23,166 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:38:23,167 INFO L158 Benchmark]: Toolchain (without parser) took 7848.54ms. Allocated memory is still 117.4MB. Free memory was 94.3MB in the beginning and 70.9MB in the end (delta: 23.3MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2024-11-28 03:38:23,168 INFO L158 Benchmark]: CDTParser took 0.86ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:38:23,168 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.17ms. Allocated memory is still 117.4MB. Free memory was 94.3MB in the beginning and 84.0MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:38:23,168 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.57ms. Allocated memory is still 117.4MB. Free memory was 84.0MB in the beginning and 82.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:38:23,169 INFO L158 Benchmark]: Boogie Preprocessor took 47.26ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 81.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:38:23,170 INFO L158 Benchmark]: RCFGBuilder took 270.99ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 71.6MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:38:23,170 INFO L158 Benchmark]: BuchiAutomizer took 7201.82ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 73.5MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:38:23,171 INFO L158 Benchmark]: Witness Printer took 50.43ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 70.9MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:38:23,174 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.17ms. Allocated memory is still 117.4MB. Free memory was 94.3MB in the beginning and 84.0MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.57ms. Allocated memory is still 117.4MB. Free memory was 84.0MB in the beginning and 82.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.26ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 81.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 270.99ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 71.6MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 7201.82ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 73.5MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 50.43ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 70.9MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. 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: 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 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function null and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 13 locations. The remainder module has 28 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.0s and 5 iterations. TraceHistogramMax:10. Analysis of lassos took 6.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 71 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 29 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU3 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital91 mio100 ax100 hnf100 lsp100 ukn59 mio100 lsp62 div100 bol100 ite100 ukn100 eq152 hnf92 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 2 VariablesLoop: 0 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: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L10] int i = __VERIFIER_nondet_int(); [L11] int a[10]; [L13] int n = 0; VAL [a={2:0}, n=0] [L13] COND TRUE n < 10 VAL [a={2:0}, n=0] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=1] [L13] COND TRUE n < 10 VAL [a={2:0}, n=1] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=2] [L13] COND TRUE n < 10 VAL [a={2:0}, n=2] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=3] [L13] COND TRUE n < 10 VAL [a={2:0}, n=3] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=4] [L13] COND TRUE n < 10 VAL [a={2:0}, n=4] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=5] [L13] COND TRUE n < 10 VAL [a={2:0}, n=5] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=6] [L13] COND TRUE n < 10 VAL [a={2:0}, n=6] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=7] [L13] COND TRUE n < 10 VAL [a={2:0}, n=7] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=8] [L13] COND TRUE n < 10 VAL [a={2:0}, n=8] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=9] [L13] COND TRUE n < 10 VAL [a={2:0}, n=9] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=10] [L13] COND FALSE !(n < 10) VAL [a={2:0}] Loop: [L17] 0 <= i && i < 10 && a[i] >= 0 [L17] 0 <= i && i < 10 && a[i] >= 0 [L17] EXPR a[i] [L17] 0 <= i && i < 10 && a[i] >= 0 [L17] COND TRUE 0 <= i && i < 10 && a[i] >= 0 [L18] a[i] = 0 [L19] i = __VERIFIER_nondet_int() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L10] int i = __VERIFIER_nondet_int(); [L11] int a[10]; [L13] int n = 0; VAL [a={2:0}, n=0] [L13] COND TRUE n < 10 VAL [a={2:0}, n=0] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=1] [L13] COND TRUE n < 10 VAL [a={2:0}, n=1] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=2] [L13] COND TRUE n < 10 VAL [a={2:0}, n=2] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=3] [L13] COND TRUE n < 10 VAL [a={2:0}, n=3] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=4] [L13] COND TRUE n < 10 VAL [a={2:0}, n=4] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=5] [L13] COND TRUE n < 10 VAL [a={2:0}, n=5] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=6] [L13] COND TRUE n < 10 VAL [a={2:0}, n=6] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=7] [L13] COND TRUE n < 10 VAL [a={2:0}, n=7] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=8] [L13] COND TRUE n < 10 VAL [a={2:0}, n=8] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=9] [L13] COND TRUE n < 10 VAL [a={2:0}, n=9] [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=10] [L13] COND FALSE !(n < 10) VAL [a={2:0}] Loop: [L17] 0 <= i && i < 10 && a[i] >= 0 [L17] 0 <= i && i < 10 && a[i] >= 0 [L17] EXPR a[i] [L17] 0 <= i && i < 10 && a[i] >= 0 [L17] COND TRUE 0 <= i && i < 10 && a[i] >= 0 [L18] a[i] = 0 [L19] i = __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-28 03:38:23,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 03:38:23,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 03:38:23,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 03:38:23,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b63d4-2e4c-4d22-ae4f-b8dcff0db8c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)