./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-52.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-52.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5182de6a2b61004b6874de3375a854ac65701cd2e3bebc3a51c50ae7b501f0d7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:11:44,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:11:44,890 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:11:44,895 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:11:44,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:11:44,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:11:44,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:11:44,937 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:11:44,938 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:11:44,938 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:11:44,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:11:44,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:11:44,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:11:44,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:11:44,940 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:11:44,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:11:44,941 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:11:44,941 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:11:44,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:11:44,942 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:11:44,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:11:44,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:11:44,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:11:44,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:11:44,942 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:11:44,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:11:44,943 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:11:44,943 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:11:44,943 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:11:44,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:11:44,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:11:44,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:11:44,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:11:44,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:11:44,944 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:11:44,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:11:44,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:11:44,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:11:44,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:11:44,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:11:44,945 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:11:44,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:11:44,945 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:11:44,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:11:44,946 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:11:44,946 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:11:44,946 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:11:44,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:11:44,947 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC 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(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5182de6a2b61004b6874de3375a854ac65701cd2e3bebc3a51c50ae7b501f0d7 [2024-11-24 00:11:45,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:11:45,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:11:45,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:11:45,279 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:11:45,279 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:11:45,280 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-52.i [2024-11-24 00:11:48,467 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/data/fa6471137/b2d110d0993c4ca0a003c3f95693800e/FLAGbc0806169 [2024-11-24 00:11:48,707 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:11:48,708 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-52.i [2024-11-24 00:11:48,722 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/data/fa6471137/b2d110d0993c4ca0a003c3f95693800e/FLAGbc0806169 [2024-11-24 00:11:48,746 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/data/fa6471137/b2d110d0993c4ca0a003c3f95693800e [2024-11-24 00:11:48,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:11:48,754 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:11:48,755 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:11:48,755 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:11:48,761 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:11:48,762 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:11:48" (1/1) ... [2024-11-24 00:11:48,765 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58af8d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:11:48, skipping insertion in model container [2024-11-24 00:11:48,765 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:11:48" (1/1) ... [2024-11-24 00:11:48,790 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:11:48,949 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-52.i[916,929] [2024-11-24 00:11:49,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:11:49,057 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:11:49,069 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-52.i[916,929] [2024-11-24 00:11:49,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:11:49,162 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:11:49,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:11:49 WrapperNode [2024-11-24 00:11:49,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:11:49,164 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:11:49,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:11:49,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:11:49,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:11:49" (1/1) ... [2024-11-24 00:11:49,192 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:11:49" (1/1) ... [2024-11-24 00:11:49,257 INFO L138 Inliner]: procedures = 29, calls = 156, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 466 [2024-11-24 00:11:49,260 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:11:49,261 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:11:49,261 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:11:49,261 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:11:49,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:11:49" (1/1) ... [2024-11-24 00:11:49,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:11:49" (1/1) ... [2024-11-24 00:11:49,283 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:11:49" (1/1) ... [2024-11-24 00:11:49,318 INFO L175 MemorySlicer]: Split 122 memory accesses to 6 slices as follows [2, 35, 47, 29, 6, 3]. 39 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 3, 1, 1]. The 18 writes are split as follows [0, 7, 5, 4, 1, 1]. [2024-11-24 00:11:49,322 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:11:49" (1/1) ... [2024-11-24 00:11:49,323 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:11:49" (1/1) ... [2024-11-24 00:11:49,349 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:11:49" (1/1) ... [2024-11-24 00:11:49,350 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:11:49" (1/1) ... [2024-11-24 00:11:49,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:11:49" (1/1) ... [2024-11-24 00:11:49,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:11:49" (1/1) ... [2024-11-24 00:11:49,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:11:49" (1/1) ... [2024-11-24 00:11:49,376 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:11:49,377 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:11:49,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:11:49,381 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:11:49,382 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:11:49" (1/1) ... [2024-11-24 00:11:49,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:11:49,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:11:49,417 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:11:49,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:11:49,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:11:49,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-24 00:11:49,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-24 00:11:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-24 00:11:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-24 00:11:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-24 00:11:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-24 00:11:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:11:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:11:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 00:11:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 00:11:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 00:11:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 00:11:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-24 00:11:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-24 00:11:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-24 00:11:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-24 00:11:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-24 00:11:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-24 00:11:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:11:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:11:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 00:11:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 00:11:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 00:11:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 00:11:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-24 00:11:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-24 00:11:49,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-24 00:11:49,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-24 00:11:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-24 00:11:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-24 00:11:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:11:49,456 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:11:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:11:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:11:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:11:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:11:49,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:11:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 00:11:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:11:49,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:11:49,651 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:11:49,654 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:11:50,290 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-11-24 00:11:50,290 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:11:50,304 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:11:50,305 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:11:50,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:11:50 BoogieIcfgContainer [2024-11-24 00:11:50,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:11:50,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:11:50,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:11:50,348 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:11:50,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:11:48" (1/3) ... [2024-11-24 00:11:50,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b3f74b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:11:50, skipping insertion in model container [2024-11-24 00:11:50,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:11:49" (2/3) ... [2024-11-24 00:11:50,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b3f74b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:11:50, skipping insertion in model container [2024-11-24 00:11:50,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:11:50" (3/3) ... [2024-11-24 00:11:50,356 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-52.i [2024-11-24 00:11:50,371 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:11:50,373 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-52.i that has 2 procedures, 115 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:11:50,447 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:11:50,462 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6a0b0811, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:11:50,462 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:11:50,467 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 94 states have (on average 1.4042553191489362) internal successors, (132), 95 states have internal predecessors, (132), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:11:50,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-24 00:11:50,481 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:50,482 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:50,483 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:50,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:50,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1134654582, now seen corresponding path program 1 times [2024-11-24 00:11:50,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:50,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722992736] [2024-11-24 00:11:50,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:50,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:50,905 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-24 00:11:50,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:50,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722992736] [2024-11-24 00:11:50,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722992736] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:50,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011295766] [2024-11-24 00:11:50,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:50,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:50,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:11:50,912 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:11:50,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:11:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:51,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:11:51,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:51,250 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-24 00:11:51,250 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:11:51,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011295766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:51,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:11:51,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:11:51,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341877005] [2024-11-24 00:11:51,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:51,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:11:51,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:51,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:11:51,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:11:51,292 INFO L87 Difference]: Start difference. First operand has 115 states, 94 states have (on average 1.4042553191489362) internal successors, (132), 95 states have internal predecessors, (132), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 00:11:51,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:51,339 INFO L93 Difference]: Finished difference Result 223 states and 348 transitions. [2024-11-24 00:11:51,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:11:51,341 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 145 [2024-11-24 00:11:51,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:51,349 INFO L225 Difference]: With dead ends: 223 [2024-11-24 00:11:51,349 INFO L226 Difference]: Without dead ends: 111 [2024-11-24 00:11:51,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:11:51,357 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:51,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:11:51,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-24 00:11:51,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-24 00:11:51,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 91 states have (on average 1.3736263736263736) internal successors, (125), 91 states have internal predecessors, (125), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:11:51,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 161 transitions. [2024-11-24 00:11:51,400 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 161 transitions. Word has length 145 [2024-11-24 00:11:51,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:51,400 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 161 transitions. [2024-11-24 00:11:51,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 00:11:51,401 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 161 transitions. [2024-11-24 00:11:51,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-24 00:11:51,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:51,404 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:51,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:11:51,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:51,605 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:51,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:51,606 INFO L85 PathProgramCache]: Analyzing trace with hash -584228882, now seen corresponding path program 1 times [2024-11-24 00:11:51,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:51,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768601334] [2024-11-24 00:11:51,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:51,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:53,514 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-24 00:11:53,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:53,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768601334] [2024-11-24 00:11:53,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768601334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:53,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571503814] [2024-11-24 00:11:53,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:53,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:53,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:11:53,522 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:11:53,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:11:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:53,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:11:53,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:53,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 63 [2024-11-24 00:11:54,338 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:54,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 291 treesize of output 171 [2024-11-24 00:11:54,403 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-24 00:11:54,404 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:54,773 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 00:11:54,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571503814] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:54,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:11:54,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 7] total 12 [2024-11-24 00:11:54,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719515052] [2024-11-24 00:11:54,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:54,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:11:54,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:54,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:11:54,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:11:54,777 INFO L87 Difference]: Start difference. First operand 111 states and 161 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:11:55,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:55,084 INFO L93 Difference]: Finished difference Result 310 states and 451 transitions. [2024-11-24 00:11:55,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:11:55,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-24 00:11:55,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:55,091 INFO L225 Difference]: With dead ends: 310 [2024-11-24 00:11:55,091 INFO L226 Difference]: Without dead ends: 202 [2024-11-24 00:11:55,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 289 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:11:55,092 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 126 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:55,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 824 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:11:55,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-24 00:11:55,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 199. [2024-11-24 00:11:55,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 164 states have (on average 1.3780487804878048) internal successors, (226), 165 states have internal predecessors, (226), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 00:11:55,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 290 transitions. [2024-11-24 00:11:55,142 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 290 transitions. Word has length 145 [2024-11-24 00:11:55,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:55,144 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 290 transitions. [2024-11-24 00:11:55,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:11:55,144 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 290 transitions. [2024-11-24 00:11:55,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-24 00:11:55,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:55,151 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:55,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:11:55,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:55,351 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:55,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:55,352 INFO L85 PathProgramCache]: Analyzing trace with hash 116835696, now seen corresponding path program 1 times [2024-11-24 00:11:55,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:55,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097877888] [2024-11-24 00:11:55,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:55,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:56,395 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-24 00:11:56,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:56,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097877888] [2024-11-24 00:11:56,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097877888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:56,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347536252] [2024-11-24 00:11:56,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:56,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:56,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:11:56,399 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:11:56,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:11:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:56,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 00:11:56,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:56,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-24 00:11:57,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-24 00:11:57,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-24 00:11:57,402 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 233 proven. 39 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-11-24 00:11:57,402 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:57,894 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-24 00:11:57,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347536252] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:11:57,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:11:57,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 11 [2024-11-24 00:11:57,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426675014] [2024-11-24 00:11:57,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:11:57,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:11:57,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:57,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:11:57,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:11:57,900 INFO L87 Difference]: Start difference. First operand 199 states and 290 transitions. Second operand has 11 states, 8 states have (on average 8.625) internal successors, (69), 11 states have internal predecessors, (69), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 2 states have call predecessors, (33), 5 states have call successors, (33) [2024-11-24 00:11:58,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:58,521 INFO L93 Difference]: Finished difference Result 419 states and 603 transitions. [2024-11-24 00:11:58,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:11:58,521 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 8.625) internal successors, (69), 11 states have internal predecessors, (69), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 2 states have call predecessors, (33), 5 states have call successors, (33) Word has length 145 [2024-11-24 00:11:58,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:58,526 INFO L225 Difference]: With dead ends: 419 [2024-11-24 00:11:58,526 INFO L226 Difference]: Without dead ends: 223 [2024-11-24 00:11:58,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 285 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:11:58,531 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 176 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:58,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 659 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:11:58,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-24 00:11:58,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 216. [2024-11-24 00:11:58,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 175 states have (on average 1.3485714285714285) internal successors, (236), 177 states have internal predecessors, (236), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 00:11:58,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 308 transitions. [2024-11-24 00:11:58,579 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 308 transitions. Word has length 145 [2024-11-24 00:11:58,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:58,580 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 308 transitions. [2024-11-24 00:11:58,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 8.625) internal successors, (69), 11 states have internal predecessors, (69), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 2 states have call predecessors, (33), 5 states have call successors, (33) [2024-11-24 00:11:58,580 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 308 transitions. [2024-11-24 00:11:58,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 00:11:58,582 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:58,582 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:58,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:11:58,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:58,790 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:58,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:58,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1573225525, now seen corresponding path program 1 times [2024-11-24 00:11:58,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:58,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203910730] [2024-11-24 00:11:58,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:58,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:11:58,892 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:11:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:11:59,070 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:11:59,070 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:11:59,071 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:11:59,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:11:59,077 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:11:59,207 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:11:59,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:11:59 BoogieIcfgContainer [2024-11-24 00:11:59,215 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:11:59,216 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:11:59,216 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:11:59,216 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:11:59,217 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:11:50" (3/4) ... [2024-11-24 00:11:59,219 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:11:59,220 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:11:59,221 INFO L158 Benchmark]: Toolchain (without parser) took 10467.64ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 91.5MB in the beginning and 85.5MB in the end (delta: 5.9MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2024-11-24 00:11:59,221 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:11:59,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.58ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 77.0MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:11:59,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.27ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 73.4MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:11:59,225 INFO L158 Benchmark]: Boogie Preprocessor took 115.18ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 69.4MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:11:59,225 INFO L158 Benchmark]: RCFGBuilder took 928.84ms. Allocated memory is still 117.4MB. Free memory was 69.2MB in the beginning and 38.5MB in the end (delta: 30.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:11:59,226 INFO L158 Benchmark]: TraceAbstraction took 8907.54ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 37.8MB in the beginning and 85.6MB in the end (delta: -47.8MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2024-11-24 00:11:59,226 INFO L158 Benchmark]: Witness Printer took 4.40ms. Allocated memory is still 184.5MB. Free memory was 85.6MB in the beginning and 85.5MB in the end (delta: 23.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:11:59,230 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 408.58ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 77.0MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.27ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 73.4MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 115.18ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 69.4MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 928.84ms. Allocated memory is still 117.4MB. Free memory was 69.2MB in the beginning and 38.5MB in the end (delta: 30.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8907.54ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 37.8MB in the beginning and 85.6MB in the end (delta: -47.8MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Witness Printer took 4.40ms. Allocated memory is still 184.5MB. Free memory was 85.6MB in the beginning and 85.5MB in the end (delta: 23.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 51, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51, overapproximation of someBinaryDOUBLEComparisonOperation at line 78, overapproximation of someBinaryDOUBLEComparisonOperation at line 58, overapproximation of someBinaryDOUBLEComparisonOperation at line 78, overapproximation of someBinaryDOUBLEComparisonOperation at line 80, overapproximation of someBinaryDOUBLEComparisonOperation at line 80, overapproximation of someBinaryDOUBLEComparisonOperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 84, overapproximation of someBinaryDOUBLEComparisonOperation at line 51, overapproximation of someBinaryDOUBLEComparisonOperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 84, overapproximation of someBinaryDOUBLEComparisonOperation at line 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 53. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 1, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 1, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 1, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 1, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 1, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 1, 0, 0, 1 }; [L25-L27] double double_Array_0[5] = { 0.0, 31.1, 25.7, 256.5, 256.6 }; [L25-L27] double double_Array_0[5] = { 0.0, 31.1, 25.7, 256.5, 256.6 }; [L25-L27] double double_Array_0[5] = { 0.0, 31.1, 25.7, 256.5, 256.6 }; [L25-L27] double double_Array_0[5] = { 0.0, 31.1, 25.7, 256.5, 256.6 }; [L25-L27] double double_Array_0[5] = { 0.0, 31.1, 25.7, 256.5, 256.6 }; [L25-L27] double double_Array_0[5] = { 0.0, 31.1, 25.7, 256.5, 256.6 }; [L28-L30] signed short int signed_short_int_Array_0[3] = { -1, 32, -4 }; [L28-L30] signed short int signed_short_int_Array_0[3] = { -1, 32, -4 }; [L28-L30] signed short int signed_short_int_Array_0[3] = { -1, 32, -4 }; [L28-L30] signed short int signed_short_int_Array_0[3] = { -1, 32, -4 }; [L31-L33] unsigned char unsigned_char_Array_0[1] = { 16 }; [L31-L33] unsigned char unsigned_char_Array_0[1] = { 16 }; [L34-L36] unsigned long int unsigned_long_int_Array_0[1] = { 8 }; [L34-L36] unsigned long int unsigned_long_int_Array_0[1] = { 8 }; VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=0, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L102] isInitial = 1 [L103] FCALL initially() [L105] FCALL updateLastVariables() [L106] CALL updateVariables() [L65] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L66] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L66] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L66] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L67] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L67] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L67] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L68] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L69] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L69] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L69] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L70] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L70] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L70] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L71] BOOL_unsigned_char_Array_0[2] = __VERIFIER_nondet_uchar() [L72] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L72] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[2] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L72] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[2] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L73] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L73] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[2] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L73] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[2] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L74] BOOL_unsigned_char_Array_0[3] = __VERIFIER_nondet_uchar() [L75] EXPR BOOL_unsigned_char_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L75] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[3] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L75] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[3] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L76] EXPR BOOL_unsigned_char_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L76] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[3] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L76] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[3] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L77] double_Array_0[0] = __VERIFIER_nondet_double() [L78] EXPR double_Array_0[0] [L78] EXPR double_Array_0[0] >= 4611686.018427382800e+12F && double_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L78] EXPR double_Array_0[0] >= 4611686.018427382800e+12F && double_Array_0[0] <= -1.0e-20F [L78] EXPR double_Array_0[0] [L78] EXPR double_Array_0[0] >= 4611686.018427382800e+12F && double_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L78] EXPR (double_Array_0[0] >= 4611686.018427382800e+12F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L78] EXPR (double_Array_0[0] >= 4611686.018427382800e+12F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L78] CALL assume_abort_if_not((double_Array_0[0] >= 4611686.018427382800e+12F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L78] RET assume_abort_if_not((double_Array_0[0] >= 4611686.018427382800e+12F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L79] double_Array_0[1] = __VERIFIER_nondet_double() [L80] EXPR double_Array_0[1] [L80] EXPR double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L80] EXPR double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F [L80] EXPR double_Array_0[1] [L80] EXPR double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L80] EXPR (double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 4611686.018427382800e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L80] EXPR (double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 4611686.018427382800e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L80] CALL assume_abort_if_not((double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 4611686.018427382800e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L80] RET assume_abort_if_not((double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 4611686.018427382800e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L81] double_Array_0[3] = __VERIFIER_nondet_double() [L82] EXPR double_Array_0[3] [L82] EXPR double_Array_0[3] >= 0.0F && double_Array_0[3] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L82] EXPR double_Array_0[3] >= 0.0F && double_Array_0[3] <= -1.0e-20F [L82] EXPR double_Array_0[3] [L82] EXPR double_Array_0[3] >= 0.0F && double_Array_0[3] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L82] EXPR (double_Array_0[3] >= 0.0F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L82] EXPR (double_Array_0[3] >= 0.0F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L82] CALL assume_abort_if_not((double_Array_0[3] >= 0.0F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L82] RET assume_abort_if_not((double_Array_0[3] >= 0.0F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L83] double_Array_0[4] = __VERIFIER_nondet_double() [L84] EXPR double_Array_0[4] [L84] EXPR double_Array_0[4] >= 0.0F && double_Array_0[4] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] EXPR double_Array_0[4] >= 0.0F && double_Array_0[4] <= -1.0e-20F [L84] EXPR double_Array_0[4] [L84] EXPR double_Array_0[4] >= 0.0F && double_Array_0[4] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] EXPR (double_Array_0[4] >= 0.0F && double_Array_0[4] <= -1.0e-20F) || (double_Array_0[4] <= 9223372.036854765600e+12F && double_Array_0[4] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] EXPR (double_Array_0[4] >= 0.0F && double_Array_0[4] <= -1.0e-20F) || (double_Array_0[4] <= 9223372.036854765600e+12F && double_Array_0[4] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] CALL assume_abort_if_not((double_Array_0[4] >= 0.0F && double_Array_0[4] <= -1.0e-20F) || (double_Array_0[4] <= 9223372.036854765600e+12F && double_Array_0[4] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] RET assume_abort_if_not((double_Array_0[4] >= 0.0F && double_Array_0[4] <= -1.0e-20F) || (double_Array_0[4] <= 9223372.036854765600e+12F && double_Array_0[4] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L85] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L86] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L86] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= -16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L86] RET assume_abort_if_not(signed_short_int_Array_0[0] >= -16383) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L87] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L87] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L87] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L88] signed_short_int_Array_0[1] = __VERIFIER_nondet_short() [L89] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L89] CALL assume_abort_if_not(signed_short_int_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L89] RET assume_abort_if_not(signed_short_int_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L90] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L90] CALL assume_abort_if_not(signed_short_int_Array_0[1] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L90] RET assume_abort_if_not(signed_short_int_Array_0[1] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L91] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L92] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L92] CALL assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L92] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L93] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L93] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 30) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L93] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 30) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L106] RET updateVariables() [L107] CALL step() [L40] EXPR signed_short_int_Array_0[1] [L40] signed short int stepLocal_0 = signed_short_int_Array_0[1]; [L41] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L41] COND FALSE !(stepLocal_0 > ((signed_short_int_Array_0[0] / -256) * 32)) [L48] EXPR BOOL_unsigned_char_Array_0[0] [L48] BOOL_unsigned_char_Array_0[4] = BOOL_unsigned_char_Array_0[0] [L50] BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L50] COND TRUE BOOL_unsigned_char_Array_0[2] [L51] EXPR double_Array_0[3] [L51] EXPR double_Array_0[0] [L51] EXPR double_Array_0[1] [L51] EXPR double_Array_0[4] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L51] EXPR (((double_Array_0[0] - double_Array_0[1])) > (double_Array_0[4])) ? ((double_Array_0[0] - double_Array_0[1])) : (double_Array_0[4]) [L51] EXPR double_Array_0[0] [L51] EXPR double_Array_0[1] [L51] EXPR (((double_Array_0[0] - double_Array_0[1])) > (double_Array_0[4])) ? ((double_Array_0[0] - double_Array_0[1])) : (double_Array_0[4]) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L51] double_Array_0[2] = (double_Array_0[3] - (((((double_Array_0[0] - double_Array_0[1])) > (double_Array_0[4])) ? ((double_Array_0[0] - double_Array_0[1])) : (double_Array_0[4])))) [L53] EXPR double_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L53] COND TRUE double_Array_0[2] < 63.75 [L54] EXPR signed_short_int_Array_0[1] [L54] signed_short_int_Array_0[2] = (10 - signed_short_int_Array_0[1]) [L58] EXPR double_Array_0[1] [L58] EXPR double_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L58] COND FALSE !(! (double_Array_0[1] < (127.125 / double_Array_0[0]))) [L107] RET step() [L108] CALL, EXPR property() [L98] EXPR double_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L98] EXPR (double_Array_0[2] < 63.75) ? (signed_short_int_Array_0[2] == ((signed short int) (10 - signed_short_int_Array_0[1]))) : (signed_short_int_Array_0[2] == ((signed short int) (4 + signed_short_int_Array_0[0]))) [L98] EXPR signed_short_int_Array_0[2] [L98] EXPR signed_short_int_Array_0[0] [L98] EXPR (double_Array_0[2] < 63.75) ? (signed_short_int_Array_0[2] == ((signed short int) (10 - signed_short_int_Array_0[1]))) : (signed_short_int_Array_0[2] == ((signed short int) (4 + signed_short_int_Array_0[0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L98] EXPR ((double_Array_0[2] < 63.75) ? (signed_short_int_Array_0[2] == ((signed short int) (10 - signed_short_int_Array_0[1]))) : (signed_short_int_Array_0[2] == ((signed short int) (4 + signed_short_int_Array_0[0])))) && ((signed_short_int_Array_0[1] > ((signed_short_int_Array_0[0] / -256) * 32)) ? (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (! (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L98] EXPR ((double_Array_0[2] < 63.75) ? (signed_short_int_Array_0[2] == ((signed short int) (10 - signed_short_int_Array_0[1]))) : (signed_short_int_Array_0[2] == ((signed short int) (4 + signed_short_int_Array_0[0])))) && ((signed_short_int_Array_0[1] > ((signed_short_int_Array_0[0] / -256) * 32)) ? (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (! (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L98] EXPR (((double_Array_0[2] < 63.75) ? (signed_short_int_Array_0[2] == ((signed short int) (10 - signed_short_int_Array_0[1]))) : (signed_short_int_Array_0[2] == ((signed short int) (4 + signed_short_int_Array_0[0])))) && ((signed_short_int_Array_0[1] > ((signed_short_int_Array_0[0] / -256) * 32)) ? (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (! (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[0])))) && (BOOL_unsigned_char_Array_0[2] ? (double_Array_0[2] == ((double) (double_Array_0[3] - (((((double_Array_0[0] - double_Array_0[1])) > (double_Array_0[4])) ? ((double_Array_0[0] - double_Array_0[1])) : (double_Array_0[4])))))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L98] EXPR (((double_Array_0[2] < 63.75) ? (signed_short_int_Array_0[2] == ((signed short int) (10 - signed_short_int_Array_0[1]))) : (signed_short_int_Array_0[2] == ((signed short int) (4 + signed_short_int_Array_0[0])))) && ((signed_short_int_Array_0[1] > ((signed_short_int_Array_0[0] / -256) * 32)) ? (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (! (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[0])))) && (BOOL_unsigned_char_Array_0[2] ? (double_Array_0[2] == ((double) (double_Array_0[3] - (((((double_Array_0[0] - double_Array_0[1])) > (double_Array_0[4])) ? ((double_Array_0[0] - double_Array_0[1])) : (double_Array_0[4])))))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L98] EXPR ((((double_Array_0[2] < 63.75) ? (signed_short_int_Array_0[2] == ((signed short int) (10 - signed_short_int_Array_0[1]))) : (signed_short_int_Array_0[2] == ((signed short int) (4 + signed_short_int_Array_0[0])))) && ((signed_short_int_Array_0[1] > ((signed_short_int_Array_0[0] / -256) * 32)) ? (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (! (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[0])))) && (BOOL_unsigned_char_Array_0[2] ? (double_Array_0[2] == ((double) (double_Array_0[3] - (((((double_Array_0[0] - double_Array_0[1])) > (double_Array_0[4])) ? ((double_Array_0[0] - double_Array_0[1])) : (double_Array_0[4])))))) : 1)) && ((! (double_Array_0[1] < (127.125 / double_Array_0[0]))) ? ((signed_short_int_Array_0[2] <= ((signed_short_int_Array_0[0] * signed_short_int_Array_0[1]) + (-2 << unsigned_char_Array_0[0]))) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) : 1) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L98] EXPR ((((double_Array_0[2] < 63.75) ? (signed_short_int_Array_0[2] == ((signed short int) (10 - signed_short_int_Array_0[1]))) : (signed_short_int_Array_0[2] == ((signed short int) (4 + signed_short_int_Array_0[0])))) && ((signed_short_int_Array_0[1] > ((signed_short_int_Array_0[0] / -256) * 32)) ? (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (! (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[0])))) && (BOOL_unsigned_char_Array_0[2] ? (double_Array_0[2] == ((double) (double_Array_0[3] - (((((double_Array_0[0] - double_Array_0[1])) > (double_Array_0[4])) ? ((double_Array_0[0] - double_Array_0[1])) : (double_Array_0[4])))))) : 1)) && ((! (double_Array_0[1] < (127.125 / double_Array_0[0]))) ? ((signed_short_int_Array_0[2] <= ((signed_short_int_Array_0[0] * signed_short_int_Array_0[1]) + (-2 << unsigned_char_Array_0[0]))) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) : 1) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L98-L99] return ((((double_Array_0[2] < 63.75) ? (signed_short_int_Array_0[2] == ((signed short int) (10 - signed_short_int_Array_0[1]))) : (signed_short_int_Array_0[2] == ((signed short int) (4 + signed_short_int_Array_0[0])))) && ((signed_short_int_Array_0[1] > ((signed_short_int_Array_0[0] / -256) * 32)) ? (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (! (BOOL_unsigned_char_Array_0[2] && BOOL_unsigned_char_Array_0[1])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[1]))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[0])))) && (BOOL_unsigned_char_Array_0[2] ? (double_Array_0[2] == ((double) (double_Array_0[3] - (((((double_Array_0[0] - double_Array_0[1])) > (double_Array_0[4])) ? ((double_Array_0[0] - double_Array_0[1])) : (double_Array_0[4])))))) : 1)) && ((! (double_Array_0[1] < (127.125 / double_Array_0[0]))) ? ((signed_short_int_Array_0[2] <= ((signed_short_int_Array_0[0] * signed_short_int_Array_0[1]) + (-2 << unsigned_char_Array_0[0]))) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) : 1) : 1) ; [L108] RET, EXPR property() [L108] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.7s, OverallIterations: 4, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 308 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 302 mSDsluCounter, 1644 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1124 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 417 IncrementalHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 520 mSDtfsCounter, 417 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 754 GetRequests, 720 SyntacticMatches, 7 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred in iteration=3, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 1017 NumberOfCodeBlocks, 1017 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1152 ConstructedInterpolants, 0 QuantifiedInterpolants, 4573 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1407 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 4655/4896 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:11:59,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-52.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5182de6a2b61004b6874de3375a854ac65701cd2e3bebc3a51c50ae7b501f0d7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:12:02,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:12:02,265 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:12:02,274 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:12:02,274 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:12:02,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:12:02,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:12:02,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:12:02,307 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:12:02,308 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:12:02,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:12:02,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:12:02,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:12:02,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:12:02,311 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:12:02,311 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:12:02,311 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:12:02,311 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:12:02,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:12:02,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:12:02,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:12:02,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:12:02,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:12:02,312 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:12:02,312 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:12:02,313 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:12:02,313 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:12:02,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:12:02,313 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:12:02,313 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:12:02,313 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:12:02,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:12:02,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:12:02,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:12:02,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:12:02,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:12:02,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:12:02,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:12:02,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:12:02,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:12:02,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:12:02,316 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:12:02,316 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:12:02,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:12:02,317 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:12:02,317 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:12:02,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:12:02,318 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:12:02,318 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:12:02,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:12:02,318 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC 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(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5182de6a2b61004b6874de3375a854ac65701cd2e3bebc3a51c50ae7b501f0d7 [2024-11-24 00:12:02,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:12:02,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:12:02,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:12:02,695 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:12:02,695 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:12:02,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-52.i [2024-11-24 00:12:05,804 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/data/2254cdaf3/689d205cc49f40c8828b6822e23d5e2e/FLAG212a89e66 [2024-11-24 00:12:06,092 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:12:06,093 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-52.i [2024-11-24 00:12:06,100 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/data/2254cdaf3/689d205cc49f40c8828b6822e23d5e2e/FLAG212a89e66 [2024-11-24 00:12:06,120 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/data/2254cdaf3/689d205cc49f40c8828b6822e23d5e2e [2024-11-24 00:12:06,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:12:06,124 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:12:06,125 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:12:06,125 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:12:06,130 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:12:06,131 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:12:06" (1/1) ... [2024-11-24 00:12:06,132 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2161215e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:12:06, skipping insertion in model container [2024-11-24 00:12:06,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:12:06" (1/1) ... [2024-11-24 00:12:06,150 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:12:06,302 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-52.i[916,929] [2024-11-24 00:12:06,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:12:06,384 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:12:06,393 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-52.i[916,929] [2024-11-24 00:12:06,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:12:06,494 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:12:06,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:12:06 WrapperNode [2024-11-24 00:12:06,496 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:12:06,497 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:12:06,497 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:12:06,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:12:06,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:12:06" (1/1) ... [2024-11-24 00:12:06,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:12:06" (1/1) ... [2024-11-24 00:12:06,587 INFO L138 Inliner]: procedures = 36, calls = 156, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 450 [2024-11-24 00:12:06,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:12:06,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:12:06,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:12:06,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:12:06,606 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:12:06" (1/1) ... [2024-11-24 00:12:06,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:12:06" (1/1) ... [2024-11-24 00:12:06,620 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:12:06" (1/1) ... [2024-11-24 00:12:06,661 INFO L175 MemorySlicer]: Split 122 memory accesses to 6 slices as follows [2, 35, 47, 29, 6, 3]. 39 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 3, 1, 1]. The 18 writes are split as follows [0, 7, 5, 4, 1, 1]. [2024-11-24 00:12:06,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:12:06" (1/1) ... [2024-11-24 00:12:06,662 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:12:06" (1/1) ... [2024-11-24 00:12:06,706 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:12:06" (1/1) ... [2024-11-24 00:12:06,710 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:12:06" (1/1) ... [2024-11-24 00:12:06,717 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:12:06" (1/1) ... [2024-11-24 00:12:06,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:12:06" (1/1) ... [2024-11-24 00:12:06,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:12:06" (1/1) ... [2024-11-24 00:12:06,739 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:12:06,743 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:12:06,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:12:06,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:12:06,745 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:12:06" (1/1) ... [2024-11-24 00:12:06,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:12:06,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:12:06,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:12:06,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:12:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:12:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-24 00:12:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-24 00:12:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-24 00:12:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-24 00:12:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-24 00:12:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-11-24 00:12:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-24 00:12:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-24 00:12:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-24 00:12:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-24 00:12:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-24 00:12:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-11-24 00:12:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-24 00:12:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-24 00:12:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-24 00:12:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-24 00:12:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-24 00:12:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-24 00:12:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-24 00:12:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-24 00:12:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-11-24 00:12:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-11-24 00:12:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-11-24 00:12:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2024-11-24 00:12:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:12:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-24 00:12:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-24 00:12:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-24 00:12:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-24 00:12:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-24 00:12:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-24 00:12:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-24 00:12:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-24 00:12:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-24 00:12:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-24 00:12:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-24 00:12:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-24 00:12:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-11-24 00:12:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:12:06,842 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:12:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:12:06,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:12:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-24 00:12:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-24 00:12:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-24 00:12:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-24 00:12:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-24 00:12:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-24 00:12:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-24 00:12:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-24 00:12:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-24 00:12:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-24 00:12:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-24 00:12:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-11-24 00:12:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-24 00:12:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-24 00:12:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-24 00:12:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-24 00:12:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-24 00:12:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-24 00:12:07,094 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:12:07,096 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:12:24,311 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-11-24 00:12:24,312 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:12:24,323 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:12:24,323 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:12:24,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:12:24 BoogieIcfgContainer [2024-11-24 00:12:24,324 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:12:24,326 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:12:24,326 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:12:24,352 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:12:24,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:12:06" (1/3) ... [2024-11-24 00:12:24,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9270d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:12:24, skipping insertion in model container [2024-11-24 00:12:24,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:12:06" (2/3) ... [2024-11-24 00:12:24,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9270d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:12:24, skipping insertion in model container [2024-11-24 00:12:24,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:12:24" (3/3) ... [2024-11-24 00:12:24,354 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-52.i [2024-11-24 00:12:24,372 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:12:24,374 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-52.i that has 2 procedures, 111 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:12:24,426 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:12:24,436 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@55d4bf6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:12:24,436 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:12:24,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 90 states have (on average 1.4) internal successors, (126), 91 states have internal predecessors, (126), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:12:24,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-24 00:12:24,452 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:24,453 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:24,453 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:24,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:24,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1943612156, now seen corresponding path program 1 times [2024-11-24 00:12:24,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:12:24,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41617919] [2024-11-24 00:12:24,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:24,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:12:24,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:12:24,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:12:24,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-24 00:12:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:25,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:12:25,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:25,713 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-11-24 00:12:25,713 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:12:25,714 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:12:25,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41617919] [2024-11-24 00:12:25,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41617919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:12:25,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:12:25,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:12:25,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448105353] [2024-11-24 00:12:25,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:12:25,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:12:25,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:12:25,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:12:25,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:12:25,751 INFO L87 Difference]: Start difference. First operand has 111 states, 90 states have (on average 1.4) internal successors, (126), 91 states have internal predecessors, (126), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 00:12:25,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:25,793 INFO L93 Difference]: Finished difference Result 215 states and 336 transitions. [2024-11-24 00:12:25,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:12:25,795 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 145 [2024-11-24 00:12:25,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:25,803 INFO L225 Difference]: With dead ends: 215 [2024-11-24 00:12:25,804 INFO L226 Difference]: Without dead ends: 107 [2024-11-24 00:12:25,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:12:25,811 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:25,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:12:25,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-24 00:12:25,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-24 00:12:25,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 87 states have (on average 1.367816091954023) internal successors, (119), 87 states have internal predecessors, (119), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:12:25,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 155 transitions. [2024-11-24 00:12:25,880 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 155 transitions. Word has length 145 [2024-11-24 00:12:25,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:25,880 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 155 transitions. [2024-11-24 00:12:25,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 00:12:25,882 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 155 transitions. [2024-11-24 00:12:25,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-24 00:12:25,890 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:25,891 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:25,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-24 00:12:26,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:12:26,092 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:26,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:26,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1393186456, now seen corresponding path program 1 times [2024-11-24 00:12:26,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:12:26,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222076052] [2024-11-24 00:12:26,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:26,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:12:26,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:12:26,098 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:12:26,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-24 00:12:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:27,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:12:27,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:28,464 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:28,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 157 treesize of output 67 [2024-11-24 00:12:28,657 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-24 00:12:28,659 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:12:28,659 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:12:28,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222076052] [2024-11-24 00:12:28,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222076052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:12:28,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:12:28,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:12:28,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330025467] [2024-11-24 00:12:28,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:12:28,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:12:28,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:12:28,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:12:28,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:12:28,665 INFO L87 Difference]: Start difference. First operand 107 states and 155 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 00:12:35,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 00:12:39,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:12:42,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:12:45,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:12:48,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 00:12:48,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:48,625 INFO L93 Difference]: Finished difference Result 212 states and 308 transitions. [2024-11-24 00:12:48,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:12:48,681 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 145 [2024-11-24 00:12:48,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:48,682 INFO L225 Difference]: With dead ends: 212 [2024-11-24 00:12:48,682 INFO L226 Difference]: Without dead ends: 108 [2024-11-24 00:12:48,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:12:48,684 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 122 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:48,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 438 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 175 Invalid, 1 Unknown, 0 Unchecked, 19.7s Time] [2024-11-24 00:12:48,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-24 00:12:48,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2024-11-24 00:12:48,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 87 states have internal predecessors, (118), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:12:48,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 154 transitions. [2024-11-24 00:12:48,697 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 154 transitions. Word has length 145 [2024-11-24 00:12:48,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:48,700 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 154 transitions. [2024-11-24 00:12:48,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 00:12:48,700 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 154 transitions. [2024-11-24 00:12:48,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 00:12:48,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:48,702 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:48,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-24 00:12:48,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:12:48,903 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:48,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:48,904 INFO L85 PathProgramCache]: Analyzing trace with hash -159048606, now seen corresponding path program 1 times [2024-11-24 00:12:48,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:12:48,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268118140] [2024-11-24 00:12:48,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:48,905 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:12:48,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:12:48,906 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:12:48,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-24 00:12:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:50,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:12:50,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:51,684 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:51,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2024-11-24 00:12:51,824 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-24 00:12:51,824 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:12:51,824 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:12:51,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268118140] [2024-11-24 00:12:51,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268118140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:12:51,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:12:51,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:12:51,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282563734] [2024-11-24 00:12:51,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:12:51,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:12:51,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:12:51,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:12:51,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:12:51,827 INFO L87 Difference]: Start difference. First operand 107 states and 154 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 00:12:57,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 00:12:59,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:01,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:04,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:06,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:08,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:12,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:13,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:13:13,148 INFO L93 Difference]: Finished difference Result 212 states and 306 transitions. [2024-11-24 00:13:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:13:13,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 147 [2024-11-24 00:13:13,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:13:13,209 INFO L225 Difference]: With dead ends: 212 [2024-11-24 00:13:13,209 INFO L226 Difference]: Without dead ends: 108 [2024-11-24 00:13:13,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:13:13,210 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 114 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:13:13,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 434 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 21.1s Time] [2024-11-24 00:13:13,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-24 00:13:13,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2024-11-24 00:13:13,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 87 states have (on average 1.3448275862068966) internal successors, (117), 87 states have internal predecessors, (117), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:13:13,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 153 transitions. [2024-11-24 00:13:13,221 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 153 transitions. Word has length 147 [2024-11-24 00:13:13,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:13:13,221 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 153 transitions. [2024-11-24 00:13:13,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 00:13:13,222 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 153 transitions. [2024-11-24 00:13:13,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-24 00:13:13,224 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:13,224 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:13:13,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-24 00:13:13,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:13:13,429 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:13:13,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:13,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1582640728, now seen corresponding path program 1 times [2024-11-24 00:13:13,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:13:13,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361340798] [2024-11-24 00:13:13,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:13:13,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:13:13,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:13:13,434 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:13:13,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-24 00:13:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:13:14,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:13:14,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:13:15,656 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:15,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2024-11-24 00:13:15,807 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-24 00:13:15,807 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:13:15,807 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:13:15,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361340798] [2024-11-24 00:13:15,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361340798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:13:15,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:13:15,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:13:15,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294964115] [2024-11-24 00:13:15,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:13:15,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:13:15,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:13:15,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:13:15,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:13:15,810 INFO L87 Difference]: Start difference. First operand 107 states and 153 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 00:13:22,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:23,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:26,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:32,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:34,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:37,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:37,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:13:37,674 INFO L93 Difference]: Finished difference Result 212 states and 304 transitions. [2024-11-24 00:13:37,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:13:37,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2024-11-24 00:13:37,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:13:37,729 INFO L225 Difference]: With dead ends: 212 [2024-11-24 00:13:37,729 INFO L226 Difference]: Without dead ends: 108 [2024-11-24 00:13:37,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:13:37,730 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 104 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:13:37,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 430 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 174 Invalid, 2 Unknown, 0 Unchecked, 21.7s Time] [2024-11-24 00:13:37,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-24 00:13:37,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2024-11-24 00:13:37,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 87 states have (on average 1.3333333333333333) internal successors, (116), 87 states have internal predecessors, (116), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:13:37,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 152 transitions. [2024-11-24 00:13:37,739 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 152 transitions. Word has length 149 [2024-11-24 00:13:37,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:13:37,740 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 152 transitions. [2024-11-24 00:13:37,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 00:13:37,740 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 152 transitions. [2024-11-24 00:13:37,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-24 00:13:37,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:37,742 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:13:37,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-24 00:13:37,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:13:37,943 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:13:37,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:37,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1837658786, now seen corresponding path program 1 times [2024-11-24 00:13:37,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:13:37,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394287934] [2024-11-24 00:13:37,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:13:37,944 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:13:37,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:13:37,946 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:13:37,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-24 00:13:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:13:38,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:13:38,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:13:40,172 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:40,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2024-11-24 00:13:40,296 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-24 00:13:40,296 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:13:40,296 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:13:40,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394287934] [2024-11-24 00:13:40,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394287934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:13:40,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:13:40,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:13:40,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355377047] [2024-11-24 00:13:40,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:13:40,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:13:40,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:13:40,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:13:40,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:13:40,298 INFO L87 Difference]: Start difference. First operand 107 states and 152 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 00:13:47,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:50,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:52,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:55,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:55,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:13:55,980 INFO L93 Difference]: Finished difference Result 212 states and 302 transitions. [2024-11-24 00:13:56,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:13:56,034 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 151 [2024-11-24 00:13:56,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:13:56,036 INFO L225 Difference]: With dead ends: 212 [2024-11-24 00:13:56,036 INFO L226 Difference]: Without dead ends: 108 [2024-11-24 00:13:56,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:13:56,037 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 96 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:13:56,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 423 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 1 Unknown, 0 Unchecked, 15.5s Time] [2024-11-24 00:13:56,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-24 00:13:56,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2024-11-24 00:13:56,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 87 states have (on average 1.3218390804597702) internal successors, (115), 87 states have internal predecessors, (115), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:13:56,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 151 transitions. [2024-11-24 00:13:56,047 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 151 transitions. Word has length 151 [2024-11-24 00:13:56,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:13:56,047 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 151 transitions. [2024-11-24 00:13:56,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 00:13:56,048 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 151 transitions. [2024-11-24 00:13:56,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 00:13:56,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:56,051 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:13:56,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-24 00:13:56,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:13:56,251 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:13:56,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:56,252 INFO L85 PathProgramCache]: Analyzing trace with hash 2086709736, now seen corresponding path program 1 times [2024-11-24 00:13:56,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:13:56,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957797317] [2024-11-24 00:13:56,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:13:56,253 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:13:56,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:13:56,256 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:13:56,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-24 00:13:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:13:57,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 00:13:57,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:13:57,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 00:13:58,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 24 [2024-11-24 00:14:03,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 24 [2024-11-24 00:14:03,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2024-11-24 00:14:03,698 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 252 proven. 72 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-24 00:14:03,698 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:14:06,067 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 72 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-11-24 00:14:06,068 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:14:06,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957797317] [2024-11-24 00:14:06,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957797317] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:14:06,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:14:06,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2024-11-24 00:14:06,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272373449] [2024-11-24 00:14:06,068 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:14:06,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:14:06,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:14:06,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:14:06,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:14:06,070 INFO L87 Difference]: Start difference. First operand 107 states and 151 transitions. Second operand has 18 states, 14 states have (on average 8.357142857142858) internal successors, (117), 16 states have internal predecessors, (117), 7 states have call successors, (32), 4 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-24 00:14:11,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:14:11,002 INFO L93 Difference]: Finished difference Result 233 states and 323 transitions. [2024-11-24 00:14:11,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 00:14:11,003 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 8.357142857142858) internal successors, (117), 16 states have internal predecessors, (117), 7 states have call successors, (32), 4 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 7 states have call successors, (32) Word has length 153 [2024-11-24 00:14:11,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:14:11,005 INFO L225 Difference]: With dead ends: 233 [2024-11-24 00:14:11,005 INFO L226 Difference]: Without dead ends: 129 [2024-11-24 00:14:11,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:14:11,007 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 150 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:14:11,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 808 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-24 00:14:11,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-24 00:14:11,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 124. [2024-11-24 00:14:11,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 98 states have (on average 1.2755102040816326) internal successors, (125), 99 states have internal predecessors, (125), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-24 00:14:11,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 169 transitions. [2024-11-24 00:14:11,032 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 169 transitions. Word has length 153 [2024-11-24 00:14:11,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:14:11,033 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 169 transitions. [2024-11-24 00:14:11,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 8.357142857142858) internal successors, (117), 16 states have internal predecessors, (117), 7 states have call successors, (32), 4 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-24 00:14:11,033 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 169 transitions. [2024-11-24 00:14:11,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 00:14:11,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:14:11,035 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:11,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-24 00:14:11,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:14:11,236 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:14:11,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:11,236 INFO L85 PathProgramCache]: Analyzing trace with hash 944225859, now seen corresponding path program 1 times [2024-11-24 00:14:11,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:14:11,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308385307] [2024-11-24 00:14:11,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:11,237 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:14:11,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:14:11,238 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:14:11,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-24 00:14:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:13,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 00:14:13,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:14:13,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 00:14:14,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 35 [2024-11-24 00:14:15,249 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:14:15,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 50 [2024-11-24 00:14:15,539 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 227 proven. 9 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-11-24 00:14:15,540 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:14:16,437 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 00:14:16,437 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:14:16,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308385307] [2024-11-24 00:14:16,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308385307] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:14:16,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:14:16,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2024-11-24 00:14:16,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166500383] [2024-11-24 00:14:16,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:14:16,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:14:16,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:14:16,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:14:16,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:14:16,439 INFO L87 Difference]: Start difference. First operand 124 states and 169 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:14:20,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:14:24,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:14:28,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:14:29,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:14:29,031 INFO L93 Difference]: Finished difference Result 331 states and 450 transitions. [2024-11-24 00:14:29,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:14:29,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 155 [2024-11-24 00:14:29,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:14:29,034 INFO L225 Difference]: With dead ends: 331 [2024-11-24 00:14:29,034 INFO L226 Difference]: Without dead ends: 219 [2024-11-24 00:14:29,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:14:29,036 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 116 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:14:29,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 768 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 2 Unknown, 0 Unchecked, 12.4s Time] [2024-11-24 00:14:29,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-24 00:14:29,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2024-11-24 00:14:29,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 173 states have (on average 1.283236994219653) internal successors, (222), 175 states have internal predecessors, (222), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 00:14:29,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 294 transitions. [2024-11-24 00:14:29,060 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 294 transitions. Word has length 155 [2024-11-24 00:14:29,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:14:29,060 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 294 transitions. [2024-11-24 00:14:29,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:14:29,061 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 294 transitions. [2024-11-24 00:14:29,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 00:14:29,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:14:29,062 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:29,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-24 00:14:29,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:14:29,263 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:14:29,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:29,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1645290437, now seen corresponding path program 1 times [2024-11-24 00:14:29,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:14:29,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991291599] [2024-11-24 00:14:29,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:29,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:14:29,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:14:29,265 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:14:29,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-24 00:14:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:30,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:14:30,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:14:30,652 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:14:30,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 33 [2024-11-24 00:14:33,144 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 00:14:33,145 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:14:33,145 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:14:33,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991291599] [2024-11-24 00:14:33,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991291599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:14:33,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:14:33,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:14:33,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051085733] [2024-11-24 00:14:33,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:14:33,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:14:33,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:14:33,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:14:33,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:14:33,146 INFO L87 Difference]: Start difference. First operand 216 states and 294 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:14:37,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:39,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:47,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:52,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:58,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:02,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:07,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:12,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:17,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:19,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:20,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:15:22,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:27,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:31,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:36,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:15:40,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:15:44,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:48,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:15:51,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:15:55,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:59,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:16:01,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:16:05,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:16:11,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:16:15,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:16:16,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:16:17,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:16:20,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:16:22,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:16:24,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:16:27,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:16:31,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:16:36,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:16:37,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:16:39,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:39,770 INFO L93 Difference]: Finished difference Result 490 states and 663 transitions. [2024-11-24 00:16:39,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:16:39,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 155 [2024-11-24 00:16:39,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:39,780 INFO L225 Difference]: With dead ends: 490 [2024-11-24 00:16:39,780 INFO L226 Difference]: Without dead ends: 286 [2024-11-24 00:16:39,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:16:39,781 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 137 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 5 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 125.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 126.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:39,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 446 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 212 Invalid, 20 Unknown, 0 Unchecked, 126.5s Time] [2024-11-24 00:16:39,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-24 00:16:39,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 274. [2024-11-24 00:16:39,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 214 states have (on average 1.2570093457943925) internal successors, (269), 216 states have internal predecessors, (269), 50 states have call successors, (50), 9 states have call predecessors, (50), 9 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-24 00:16:39,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 369 transitions. [2024-11-24 00:16:39,853 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 369 transitions. Word has length 155 [2024-11-24 00:16:39,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:39,854 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 369 transitions. [2024-11-24 00:16:39,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:16:39,854 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 369 transitions. [2024-11-24 00:16:39,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 00:16:39,855 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:39,855 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:16:39,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-24 00:16:40,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:16:40,056 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:40,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:40,057 INFO L85 PathProgramCache]: Analyzing trace with hash -335637819, now seen corresponding path program 1 times [2024-11-24 00:16:40,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:40,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98125316] [2024-11-24 00:16:40,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:40,057 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:16:40,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:40,059 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:16:40,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-24 00:16:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:41,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:16:41,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:41,509 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:41,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 34 [2024-11-24 00:16:41,651 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 00:16:41,651 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:16:41,652 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:41,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98125316] [2024-11-24 00:16:41,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98125316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:41,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:41,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:16:41,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107521871] [2024-11-24 00:16:41,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:41,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:16:41,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:16:41,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:16:41,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:16:41,653 INFO L87 Difference]: Start difference. First operand 274 states and 369 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:16:46,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:16:49,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:16:53,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:16:55,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:17:00,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:17:04,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:17:10,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:17:12,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:17:14,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:17:18,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:17:19,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:17:22,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:17:26,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:17:29,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:17:31,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:17:32,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:17:32,602 INFO L93 Difference]: Finished difference Result 500 states and 673 transitions. [2024-11-24 00:17:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:17:32,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 155 [2024-11-24 00:17:32,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:17:32,612 INFO L225 Difference]: With dead ends: 500 [2024-11-24 00:17:32,612 INFO L226 Difference]: Without dead ends: 286 [2024-11-24 00:17:32,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:17:32,615 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 136 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 4 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:17:32,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 687 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 254 Invalid, 6 Unknown, 0 Unchecked, 50.8s Time] [2024-11-24 00:17:32,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-24 00:17:32,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 274. [2024-11-24 00:17:32,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 214 states have (on average 1.2523364485981308) internal successors, (268), 216 states have internal predecessors, (268), 50 states have call successors, (50), 9 states have call predecessors, (50), 9 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-24 00:17:32,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 368 transitions. [2024-11-24 00:17:32,653 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 368 transitions. Word has length 155 [2024-11-24 00:17:32,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:17:32,654 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 368 transitions. [2024-11-24 00:17:32,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:17:32,654 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 368 transitions. [2024-11-24 00:17:32,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 00:17:32,655 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:17:32,656 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:17:32,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-24 00:17:32,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:17:32,856 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:17:32,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:17:32,857 INFO L85 PathProgramCache]: Analyzing trace with hash 365426759, now seen corresponding path program 1 times [2024-11-24 00:17:32,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:17:32,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858940731] [2024-11-24 00:17:32,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:17:32,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:17:32,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:17:32,859 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:17:32,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-24 00:17:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:17:34,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-24 00:17:34,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:17:34,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:17:35,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2024-11-24 00:17:38,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:17:38,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 54 [2024-11-24 00:17:38,749 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:17:38,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 64 [2024-11-24 00:17:39,152 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 297 proven. 27 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-24 00:17:39,153 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:17:40,270 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 00:17:40,270 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:17:40,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858940731] [2024-11-24 00:17:40,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858940731] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:17:40,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:17:40,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 21 [2024-11-24 00:17:40,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664419415] [2024-11-24 00:17:40,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:17:40,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:17:40,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:17:40,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:17:40,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:17:40,272 INFO L87 Difference]: Start difference. First operand 274 states and 368 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:17:42,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:17:47,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:17:50,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:17:51,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:17:51,217 INFO L93 Difference]: Finished difference Result 494 states and 660 transitions. [2024-11-24 00:17:51,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:17:51,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 155 [2024-11-24 00:17:51,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:17:51,220 INFO L225 Difference]: With dead ends: 494 [2024-11-24 00:17:51,220 INFO L226 Difference]: Without dead ends: 280 [2024-11-24 00:17:51,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:17:51,221 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 107 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:17:51,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 867 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2024-11-24 00:17:51,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-24 00:17:51,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 278. [2024-11-24 00:17:51,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 217 states have (on average 1.2442396313364055) internal successors, (270), 219 states have internal predecessors, (270), 50 states have call successors, (50), 10 states have call predecessors, (50), 10 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-24 00:17:51,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 370 transitions. [2024-11-24 00:17:51,254 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 370 transitions. Word has length 155 [2024-11-24 00:17:51,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:17:51,255 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 370 transitions. [2024-11-24 00:17:51,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:17:51,255 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 370 transitions. [2024-11-24 00:17:51,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-24 00:17:51,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:17:51,256 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:17:51,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-24 00:17:51,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:17:51,458 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:17:51,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:17:51,459 INFO L85 PathProgramCache]: Analyzing trace with hash -663050578, now seen corresponding path program 1 times [2024-11-24 00:17:51,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:17:51,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289942496] [2024-11-24 00:17:51,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:17:51,460 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:17:51,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:17:51,464 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:17:51,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-24 00:17:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:17:53,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 00:17:53,012 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:17:53,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:17:53,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-24 00:17:53,721 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:17:53,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2024-11-24 00:17:54,081 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:17:54,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2024-11-24 00:17:58,227 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:17:58,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 50 [2024-11-24 00:17:59,084 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:17:59,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 43 [2024-11-24 00:17:59,449 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 275 proven. 48 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2024-11-24 00:17:59,449 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:18:00,388 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 00:18:00,388 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:18:00,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289942496] [2024-11-24 00:18:00,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289942496] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:18:00,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:18:00,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 14 [2024-11-24 00:18:00,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706557829] [2024-11-24 00:18:00,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:18:00,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:18:00,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:18:00,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:18:00,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:18:00,390 INFO L87 Difference]: Start difference. First operand 278 states and 370 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:18:01,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:18:01,317 INFO L93 Difference]: Finished difference Result 572 states and 763 transitions. [2024-11-24 00:18:01,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:18:01,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 157 [2024-11-24 00:18:01,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:18:01,321 INFO L225 Difference]: With dead ends: 572 [2024-11-24 00:18:01,321 INFO L226 Difference]: Without dead ends: 354 [2024-11-24 00:18:01,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:18:01,322 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 43 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:18:01,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 732 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:18:01,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-24 00:18:01,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 306. [2024-11-24 00:18:01,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 245 states have (on average 1.2489795918367348) internal successors, (306), 247 states have internal predecessors, (306), 50 states have call successors, (50), 10 states have call predecessors, (50), 10 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-24 00:18:01,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 406 transitions. [2024-11-24 00:18:01,356 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 406 transitions. Word has length 157 [2024-11-24 00:18:01,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:18:01,357 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 406 transitions. [2024-11-24 00:18:01,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:18:01,357 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 406 transitions. [2024-11-24 00:18:01,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-24 00:18:01,358 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:18:01,358 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:18:01,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-24 00:18:01,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:18:01,559 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:18:01,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:18:01,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2122390219, now seen corresponding path program 1 times [2024-11-24 00:18:01,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:18:01,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799394514] [2024-11-24 00:18:01,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:01,560 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:18:01,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:18:01,561 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:18:01,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-24 00:18:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:03,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 00:18:03,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:03,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:18:03,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:18:05,681 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:18:05,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 54 [2024-11-24 00:18:06,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:18:06,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 40 [2024-11-24 00:18:06,768 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 302 proven. 21 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2024-11-24 00:18:06,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:18:08,227 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 00:18:08,227 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:18:08,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799394514] [2024-11-24 00:18:08,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799394514] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:18:08,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:18:08,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2024-11-24 00:18:08,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129295101] [2024-11-24 00:18:08,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:18:08,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:18:08,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:18:08,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:18:08,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:18:08,228 INFO L87 Difference]: Start difference. First operand 306 states and 406 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:18:12,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:18:15,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:18:19,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:18:21,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:18:22,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:18:22,252 INFO L93 Difference]: Finished difference Result 716 states and 946 transitions. [2024-11-24 00:18:22,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:18:22,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 158 [2024-11-24 00:18:22,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:18:22,256 INFO L225 Difference]: With dead ends: 716 [2024-11-24 00:18:22,256 INFO L226 Difference]: Without dead ends: 470 [2024-11-24 00:18:22,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:18:22,258 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 200 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 28 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:18:22,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 487 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 50 Invalid, 2 Unknown, 0 Unchecked, 13.8s Time] [2024-11-24 00:18:22,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-24 00:18:22,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 372. [2024-11-24 00:18:22,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 302 states have (on average 1.2516556291390728) internal successors, (378), 305 states have internal predecessors, (378), 56 states have call successors, (56), 13 states have call predecessors, (56), 13 states have return successors, (56), 53 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-24 00:18:22,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 490 transitions. [2024-11-24 00:18:22,306 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 490 transitions. Word has length 158 [2024-11-24 00:18:22,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:18:22,307 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 490 transitions. [2024-11-24 00:18:22,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:18:22,307 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 490 transitions. [2024-11-24 00:18:22,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-24 00:18:22,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:18:22,308 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:18:22,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-24 00:18:22,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:18:22,509 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:18:22,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:18:22,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1223178500, now seen corresponding path program 1 times [2024-11-24 00:18:22,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:18:22,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762696471] [2024-11-24 00:18:22,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:22,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:18:22,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:18:22,512 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:18:22,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-24 00:18:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:24,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:18:24,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:24,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:18:24,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-24 00:18:27,546 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:18:27,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 59 [2024-11-24 00:18:28,547 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:18:28,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 45 [2024-11-24 00:18:28,942 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 303 proven. 21 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-24 00:18:28,942 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:18:30,576 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 00:18:30,576 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:18:30,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [762696471] [2024-11-24 00:18:30,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [762696471] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:18:30,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:18:30,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18 [2024-11-24 00:18:30,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185708181] [2024-11-24 00:18:30,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:18:30,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:18:30,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:18:30,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:18:30,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:18:30,578 INFO L87 Difference]: Start difference. First operand 372 states and 490 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:18:34,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:18:38,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:18:40,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:18:45,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:18:48,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:18:49,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:18:49,119 INFO L93 Difference]: Finished difference Result 756 states and 993 transitions. [2024-11-24 00:18:49,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:18:49,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 159 [2024-11-24 00:18:49,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:18:49,125 INFO L225 Difference]: With dead ends: 756 [2024-11-24 00:18:49,125 INFO L226 Difference]: Without dead ends: 444 [2024-11-24 00:18:49,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:18:49,127 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 99 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:18:49,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 668 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 2 Unknown, 0 Unchecked, 18.4s Time] [2024-11-24 00:18:49,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-11-24 00:18:49,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 298. [2024-11-24 00:18:49,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 242 states have (on average 1.2355371900826446) internal successors, (299), 244 states have internal predecessors, (299), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-24 00:18:49,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 387 transitions. [2024-11-24 00:18:49,180 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 387 transitions. Word has length 159 [2024-11-24 00:18:49,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:18:49,180 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 387 transitions. [2024-11-24 00:18:49,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:18:49,181 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 387 transitions. [2024-11-24 00:18:49,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-24 00:18:49,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:18:49,184 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:18:49,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-24 00:18:49,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:18:49,385 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:18:49,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:18:49,385 INFO L85 PathProgramCache]: Analyzing trace with hash 203295232, now seen corresponding path program 1 times [2024-11-24 00:18:49,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:18:49,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684275750] [2024-11-24 00:18:49,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:49,386 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:18:49,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:18:49,389 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:18:49,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-24 00:18:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:50,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:18:50,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:51,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-24 00:18:51,141 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 00:18:51,141 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:18:51,141 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:18:51,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684275750] [2024-11-24 00:18:51,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684275750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:18:51,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:18:51,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:18:51,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53511310] [2024-11-24 00:18:51,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:18:51,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:18:51,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:18:51,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:18:51,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:18:51,143 INFO L87 Difference]: Start difference. First operand 298 states and 387 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:18:57,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:19:02,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:19:02,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:02,381 INFO L93 Difference]: Finished difference Result 544 states and 703 transitions. [2024-11-24 00:19:02,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:19:02,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 159 [2024-11-24 00:19:02,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:02,384 INFO L225 Difference]: With dead ends: 544 [2024-11-24 00:19:02,384 INFO L226 Difference]: Without dead ends: 306 [2024-11-24 00:19:02,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:19:02,386 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 49 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:02,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 510 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2024-11-24 00:19:02,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-24 00:19:02,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 264. [2024-11-24 00:19:02,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 215 states have (on average 1.2186046511627906) internal successors, (262), 217 states have internal predecessors, (262), 37 states have call successors, (37), 11 states have call predecessors, (37), 11 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-24 00:19:02,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 336 transitions. [2024-11-24 00:19:02,424 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 336 transitions. Word has length 159 [2024-11-24 00:19:02,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:02,425 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 336 transitions. [2024-11-24 00:19:02,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:19:02,425 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 336 transitions. [2024-11-24 00:19:02,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 00:19:02,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:02,426 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:19:02,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-24 00:19:02,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:19:02,627 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:02,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:02,628 INFO L85 PathProgramCache]: Analyzing trace with hash -179197991, now seen corresponding path program 1 times [2024-11-24 00:19:02,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:19:02,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605900500] [2024-11-24 00:19:02,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:02,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:19:02,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:19:02,631 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:19:02,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-24 00:19:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:04,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 00:19:04,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:19:04,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:19:05,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-24 00:19:05,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2024-11-24 00:19:10,350 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:19:10,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 44 [2024-11-24 00:19:11,390 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:19:11,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 44 [2024-11-24 00:19:12,104 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 254 proven. 84 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-24 00:19:12,105 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:19:13,502 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 00:19:13,502 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:19:13,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605900500] [2024-11-24 00:19:13,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605900500] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:19:13,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:19:13,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 19 [2024-11-24 00:19:13,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973941441] [2024-11-24 00:19:13,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:13,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:19:13,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:19:13,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:19:13,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:19:13,504 INFO L87 Difference]: Start difference. First operand 264 states and 336 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:19:14,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:14,851 INFO L93 Difference]: Finished difference Result 608 states and 772 transitions. [2024-11-24 00:19:14,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:19:14,852 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 160 [2024-11-24 00:19:14,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:14,854 INFO L225 Difference]: With dead ends: 608 [2024-11-24 00:19:14,854 INFO L226 Difference]: Without dead ends: 362 [2024-11-24 00:19:14,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:19:14,855 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 51 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:14,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 973 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:19:14,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-24 00:19:14,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 358. [2024-11-24 00:19:14,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 302 states have (on average 1.228476821192053) internal successors, (371), 306 states have internal predecessors, (371), 41 states have call successors, (41), 14 states have call predecessors, (41), 14 states have return successors, (41), 37 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-24 00:19:14,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 453 transitions. [2024-11-24 00:19:14,899 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 453 transitions. Word has length 160 [2024-11-24 00:19:14,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:14,899 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 453 transitions. [2024-11-24 00:19:14,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 00:19:14,899 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 453 transitions. [2024-11-24 00:19:14,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-24 00:19:14,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:14,901 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:19:14,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-24 00:19:15,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:19:15,102 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:15,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:15,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1221255943, now seen corresponding path program 1 times [2024-11-24 00:19:15,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:19:15,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095932530] [2024-11-24 00:19:15,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:15,103 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:19:15,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:19:15,105 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:19:15,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5f5c81-001d-4f26-a01a-90495f777100/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-24 00:19:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:19,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-24 00:19:19,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:19:20,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:19:22,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 65 [2024-11-24 00:19:28,175 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:19:28,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 244 treesize of output 125 [2024-11-24 00:19:34,593 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:19:34,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 229 treesize of output 134 [2024-11-24 00:20:12,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:20:12,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 428 treesize of output 213 [2024-11-24 00:20:51,399 WARN L286 SmtUtils]: Spent 7.84s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:20:58,552 WARN L286 SmtUtils]: Spent 7.15s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:21:18,315 WARN L286 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:21:25,645 WARN L286 SmtUtils]: Spent 7.33s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:21:33,786 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:21:42,034 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:21:49,052 WARN L286 SmtUtils]: Spent 7.02s on a formula simplification. DAG size of input: 19 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:21:54,759 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse8 (select |c_#memory_int#2| |c_~#double_Array_0~0.base|))) (let ((.cse4 (select .cse8 (bvadd (_ bv12 32) |c_~#double_Array_0~0.offset|))) (.cse2 (select .cse8 (bvadd (_ bv8 32) |c_~#double_Array_0~0.offset|)))) (let ((.cse5 (let ((.cse11 (concat .cse4 .cse2))) (fp ((_ extract 63 63) .cse11) ((_ extract 62 52) .cse11) ((_ extract 51 0) .cse11)))) (.cse7 (let ((.cse10 (concat (select .cse8 (bvadd (_ bv36 32) |c_~#double_Array_0~0.offset|)) (select .cse8 (bvadd (_ bv32 32) |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse10) ((_ extract 62 52) .cse10) ((_ extract 51 0) .cse10)))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (.cse6 (let ((.cse9 (concat (select .cse8 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse8 |c_~#double_Array_0~0.offset|)))) (fp ((_ extract 63 63) .cse9) ((_ extract 62 52) .cse9) ((_ extract 51 0) .cse9))))) (and (exists ((|v_skolemized_q#valueAsBitvector_107| (_ BitVec 64))) (let ((.cse1 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_107|))) (and (fp.geq (let ((.cse0 (concat .cse1 .cse2))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) .cse3) (= .cse4 .cse1)))) (fp.lt .cse5 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1017.0 8.0)) .cse6)) (fp.gt (fp.sub c_currentRoundingMode .cse6 .cse5) .cse7) (exists ((|v_skolemized_q#valueAsBitvector_108| (_ BitVec 64))) (= (select .cse8 (bvadd (_ bv24 32) |c_~#double_Array_0~0.offset|)) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_108|))) (fp.leq .cse6 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (fp.geq .cse7 .cse3) (fp.geq .cse6 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0))) (= c_currentRoundingMode roundNearestTiesToEven))))) is different from true [2024-11-24 00:22:06,065 WARN L286 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:22:13,324 WARN L286 SmtUtils]: Spent 7.26s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:22:21,207 WARN L286 SmtUtils]: Spent 5.49s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:22:33,113 WARN L286 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:22:44,602 WARN L286 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:22:49,904 WARN L286 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:23:01,010 WARN L286 SmtUtils]: Spent 7.25s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:23:09,250 WARN L286 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:23:16,913 WARN L286 SmtUtils]: Spent 7.66s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:23:24,268 WARN L286 SmtUtils]: Spent 7.35s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:23:32,603 WARN L286 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:23:40,881 WARN L286 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:23:49,762 WARN L286 SmtUtils]: Spent 6.79s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:23:57,592 WARN L286 SmtUtils]: Spent 7.83s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:24:04,784 WARN L286 SmtUtils]: Spent 7.19s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:24:13,034 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:24:19,408 WARN L286 SmtUtils]: Spent 6.37s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:24:26,616 WARN L286 SmtUtils]: Spent 7.21s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:24:34,524 WARN L286 SmtUtils]: Spent 7.91s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:24:45,867 WARN L286 SmtUtils]: Spent 7.31s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:24:54,117 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:25:02,283 WARN L286 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:25:17,527 WARN L286 SmtUtils]: Spent 7.31s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:25:24,019 WARN L286 SmtUtils]: Spent 6.49s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:25:32,355 WARN L286 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:25:40,149 WARN L286 SmtUtils]: Spent 7.79s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:25:48,441 WARN L286 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:25:56,715 WARN L286 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:26:03,261 WARN L286 SmtUtils]: Spent 6.55s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:26:09,799 WARN L286 SmtUtils]: Spent 6.54s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:26:17,832 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:26:26,085 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:26:35,492 WARN L286 SmtUtils]: Spent 5.83s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 00:26:43,457 WARN L286 SmtUtils]: Spent 7.97s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)