./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.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_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 84da415e9ad0a7cbbc07d5b79a769caa1c0599f3ba39b8d5c5504fcb214f076c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:15:48,209 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:15:48,338 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:15:48,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:15:48,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:15:48,395 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:15:48,396 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:15:48,396 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:15:48,397 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:15:48,397 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:15:48,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:15:48,397 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:15:48,397 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:15:48,397 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:15:48,398 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:15:48,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:15:48,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:15:48,398 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:15:48,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:15:48,398 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:15:48,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:15:48,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:15:48,399 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:15:48,399 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:15:48,399 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:15:48,399 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:15:48,399 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:15:48,399 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:15:48,400 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:15:48,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:15:48,400 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:15:48,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:15:48,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:15:48,400 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:15:48,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:15:48,400 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:15:48,401 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:15:48,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:15:48,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:15:48,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:15:48,401 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:15:48,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:15:48,401 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:15:48,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:15:48,401 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:15:48,401 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:15:48,401 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:15:48,401 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:15:48,401 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_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 -> 84da415e9ad0a7cbbc07d5b79a769caa1c0599f3ba39b8d5c5504fcb214f076c [2024-11-24 00:15:48,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:15:48,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:15:48,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:15:48,849 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:15:48,850 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:15:48,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i [2024-11-24 00:15:52,776 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/data/40d48cb1b/a56ebbbffc884d5494eb8202046aeefd/FLAG09d571236 [2024-11-24 00:15:53,174 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:15:53,174 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i [2024-11-24 00:15:53,190 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/data/40d48cb1b/a56ebbbffc884d5494eb8202046aeefd/FLAG09d571236 [2024-11-24 00:15:53,214 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/data/40d48cb1b/a56ebbbffc884d5494eb8202046aeefd [2024-11-24 00:15:53,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:15:53,220 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:15:53,225 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:15:53,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:15:53,236 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:15:53,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:15:53" (1/1) ... [2024-11-24 00:15:53,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f0612c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:53, skipping insertion in model container [2024-11-24 00:15:53,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:15:53" (1/1) ... [2024-11-24 00:15:53,266 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:15:53,493 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_4de76f9f-2e4d-4c92-a96f-e0351d77934e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i[916,929] [2024-11-24 00:15:53,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:15:53,638 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:15:53,652 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_4de76f9f-2e4d-4c92-a96f-e0351d77934e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i[916,929] [2024-11-24 00:15:53,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:15:53,726 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:15:53,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:53 WrapperNode [2024-11-24 00:15:53,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:15:53,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:15:53,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:15:53,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:15:53,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:53" (1/1) ... [2024-11-24 00:15:53,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:53" (1/1) ... [2024-11-24 00:15:53,809 INFO L138 Inliner]: procedures = 29, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 414 [2024-11-24 00:15:53,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:15:53,813 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:15:53,813 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:15:53,813 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:15:53,830 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:53" (1/1) ... [2024-11-24 00:15:53,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:53" (1/1) ... [2024-11-24 00:15:53,836 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:53" (1/1) ... [2024-11-24 00:15:53,886 INFO L175 MemorySlicer]: Split 110 memory accesses to 5 slices as follows [2, 20, 22, 33, 33]. 30 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 2, 2, 4, 2]. The 16 writes are split as follows [0, 2, 5, 6, 3]. [2024-11-24 00:15:53,886 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:53" (1/1) ... [2024-11-24 00:15:53,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:53" (1/1) ... [2024-11-24 00:15:53,910 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:53" (1/1) ... [2024-11-24 00:15:53,911 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:53" (1/1) ... [2024-11-24 00:15:53,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:53" (1/1) ... [2024-11-24 00:15:53,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:53" (1/1) ... [2024-11-24 00:15:53,923 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:53" (1/1) ... [2024-11-24 00:15:53,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:15:53,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:15:53,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:15:53,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:15:53,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:53" (1/1) ... [2024-11-24 00:15:53,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:15:53,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:15:53,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:15:53,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:15:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:15:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-24 00:15:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-24 00:15:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-24 00:15:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-24 00:15:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-24 00:15:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:15:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:15:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 00:15:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 00:15:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 00:15:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-24 00:15:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-24 00:15:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-24 00:15:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-24 00:15:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-24 00:15:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:15:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:15:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 00:15:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 00:15:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 00:15:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-24 00:15:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-24 00:15:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-24 00:15:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-24 00:15:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-24 00:15:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:15:54,025 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:15:54,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:15:54,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:15:54,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:15:54,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:15:54,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:15:54,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:15:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:15:54,191 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:15:54,194 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:15:55,015 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-24 00:15:55,015 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:15:55,039 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:15:55,040 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:15:55,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:15:55 BoogieIcfgContainer [2024-11-24 00:15:55,040 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:15:55,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:15:55,044 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:15:55,053 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:15:55,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:15:53" (1/3) ... [2024-11-24 00:15:55,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30599073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:15:55, skipping insertion in model container [2024-11-24 00:15:55,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:53" (2/3) ... [2024-11-24 00:15:55,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30599073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:15:55, skipping insertion in model container [2024-11-24 00:15:55,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:15:55" (3/3) ... [2024-11-24 00:15:55,058 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-31.i [2024-11-24 00:15:55,079 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:15:55,080 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-31.i that has 2 procedures, 87 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:15:55,185 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:15:55,198 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;@198ba86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:15:55,198 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:15:55,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:15:55,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 00:15:55,216 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:15:55,217 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:15:55,217 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:15:55,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:15:55,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1922605135, now seen corresponding path program 1 times [2024-11-24 00:15:55,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:15:55,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838421012] [2024-11-24 00:15:55,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:15:55,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:15:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:15:55,723 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-24 00:15:55,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:15:55,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838421012] [2024-11-24 00:15:55,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838421012] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:15:55,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085836485] [2024-11-24 00:15:55,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:15:55,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:15:55,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:15:55,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:15:55,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:15:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:15:56,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:15:56,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:15:56,136 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-24 00:15:56,139 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:15:56,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085836485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:15:56,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:15:56,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:15:56,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551574485] [2024-11-24 00:15:56,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:15:56,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:15:56,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:15:56,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:15:56,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:15:56,183 INFO L87 Difference]: Start difference. First operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:15:56,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:15:56,231 INFO L93 Difference]: Finished difference Result 167 states and 261 transitions. [2024-11-24 00:15:56,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:15:56,236 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2024-11-24 00:15:56,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:15:56,248 INFO L225 Difference]: With dead ends: 167 [2024-11-24 00:15:56,248 INFO L226 Difference]: Without dead ends: 83 [2024-11-24 00:15:56,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 95 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 00:15:56,259 INFO L435 NwaCegarLoop]: 121 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, 121 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 00:15:56,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:15:56,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-24 00:15:56,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-24 00:15:56,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 70 states have internal predecessors, (99), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:15:56,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 121 transitions. [2024-11-24 00:15:56,319 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 121 transitions. Word has length 94 [2024-11-24 00:15:56,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:15:56,320 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 121 transitions. [2024-11-24 00:15:56,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:15:56,320 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 121 transitions. [2024-11-24 00:15:56,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 00:15:56,324 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:15:56,325 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:15:56,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:15:56,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:15:56,529 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:15:56,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:15:56,530 INFO L85 PathProgramCache]: Analyzing trace with hash 434162283, now seen corresponding path program 1 times [2024-11-24 00:15:56,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:15:56,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405468253] [2024-11-24 00:15:56,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:15:56,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:15:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:15:57,344 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:15:57,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:15:57,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405468253] [2024-11-24 00:15:57,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405468253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:15:57,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:15:57,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:15:57,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477153676] [2024-11-24 00:15:57,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:15:57,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:15:57,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:15:57,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:15:57,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:15:57,351 INFO L87 Difference]: Start difference. First operand 83 states and 121 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:15:57,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:15:57,397 INFO L93 Difference]: Finished difference Result 163 states and 239 transitions. [2024-11-24 00:15:57,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:15:57,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2024-11-24 00:15:57,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:15:57,399 INFO L225 Difference]: With dead ends: 163 [2024-11-24 00:15:57,400 INFO L226 Difference]: Without dead ends: 83 [2024-11-24 00:15:57,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:15:57,403 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:15:57,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 235 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:15:57,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-24 00:15:57,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-24 00:15:57,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 70 states have (on average 1.4) internal successors, (98), 70 states have internal predecessors, (98), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:15:57,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2024-11-24 00:15:57,416 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 120 transitions. Word has length 94 [2024-11-24 00:15:57,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:15:57,417 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 120 transitions. [2024-11-24 00:15:57,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:15:57,417 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 120 transitions. [2024-11-24 00:15:57,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 00:15:57,419 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:15:57,419 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:15:57,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:15:57,420 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:15:57,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:15:57,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1154185619, now seen corresponding path program 1 times [2024-11-24 00:15:57,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:15:57,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098962688] [2024-11-24 00:15:57,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:15:57,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:15:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:00,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:16:00,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098962688] [2024-11-24 00:16:00,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098962688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:00,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:00,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:16:00,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491181738] [2024-11-24 00:16:00,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:00,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:16:00,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:16:00,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:16:00,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:16:00,660 INFO L87 Difference]: Start difference. First operand 83 states and 120 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:16:01,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:01,243 INFO L93 Difference]: Finished difference Result 222 states and 320 transitions. [2024-11-24 00:16:01,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:16:01,245 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2024-11-24 00:16:01,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:01,248 INFO L225 Difference]: With dead ends: 222 [2024-11-24 00:16:01,248 INFO L226 Difference]: Without dead ends: 142 [2024-11-24 00:16:01,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:16:01,252 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 79 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:01,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 817 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:16:01,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-24 00:16:01,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 139. [2024-11-24 00:16:01,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 118 states have (on average 1.3898305084745763) internal successors, (164), 119 states have internal predecessors, (164), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:16:01,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 200 transitions. [2024-11-24 00:16:01,290 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 200 transitions. Word has length 94 [2024-11-24 00:16:01,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:01,291 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 200 transitions. [2024-11-24 00:16:01,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:16:01,292 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 200 transitions. [2024-11-24 00:16:01,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 00:16:01,294 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:01,295 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:01,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:16:01,295 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:01,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:01,296 INFO L85 PathProgramCache]: Analyzing trace with hash -463624664, now seen corresponding path program 1 times [2024-11-24 00:16:01,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:16:01,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701460375] [2024-11-24 00:16:01,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:01,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:16:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:02,216 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:02,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:16:02,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701460375] [2024-11-24 00:16:02,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701460375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:02,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:02,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:16:02,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909949228] [2024-11-24 00:16:02,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:02,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:16:02,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:16:02,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:16:02,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:16:02,222 INFO L87 Difference]: Start difference. First operand 139 states and 200 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:16:02,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:02,379 INFO L93 Difference]: Finished difference Result 275 states and 397 transitions. [2024-11-24 00:16:02,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:16:02,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2024-11-24 00:16:02,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:02,386 INFO L225 Difference]: With dead ends: 275 [2024-11-24 00:16:02,386 INFO L226 Difference]: Without dead ends: 139 [2024-11-24 00:16:02,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:16:02,388 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:02,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 409 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:16:02,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-24 00:16:02,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-24 00:16:02,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 119 states have internal predecessors, (162), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:16:02,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 198 transitions. [2024-11-24 00:16:02,426 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 198 transitions. Word has length 96 [2024-11-24 00:16:02,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:02,427 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 198 transitions. [2024-11-24 00:16:02,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:16:02,428 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 198 transitions. [2024-11-24 00:16:02,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 00:16:02,430 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:02,430 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:02,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:16:02,431 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:02,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:02,431 INFO L85 PathProgramCache]: Analyzing trace with hash -856651674, now seen corresponding path program 1 times [2024-11-24 00:16:02,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:16:02,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782358814] [2024-11-24 00:16:02,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:02,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:16:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:03,697 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:03,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:16:03,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782358814] [2024-11-24 00:16:03,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782358814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:03,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:03,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:16:03,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164680257] [2024-11-24 00:16:03,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:03,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:16:03,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:16:03,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:16:03,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:16:03,703 INFO L87 Difference]: Start difference. First operand 139 states and 198 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:04,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:04,081 INFO L93 Difference]: Finished difference Result 304 states and 433 transitions. [2024-11-24 00:16:04,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:16:04,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-11-24 00:16:04,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:04,084 INFO L225 Difference]: With dead ends: 304 [2024-11-24 00:16:04,084 INFO L226 Difference]: Without dead ends: 168 [2024-11-24 00:16:04,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:16:04,090 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 86 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:04,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 674 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:16:04,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-24 00:16:04,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 113. [2024-11-24 00:16:04,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.3369565217391304) internal successors, (123), 93 states have internal predecessors, (123), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:16:04,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 159 transitions. [2024-11-24 00:16:04,130 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 159 transitions. Word has length 96 [2024-11-24 00:16:04,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:04,130 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 159 transitions. [2024-11-24 00:16:04,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:04,130 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 159 transitions. [2024-11-24 00:16:04,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 00:16:04,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:04,135 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:04,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:16:04,136 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:04,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:04,136 INFO L85 PathProgramCache]: Analyzing trace with hash 916608243, now seen corresponding path program 1 times [2024-11-24 00:16:04,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:16:04,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625959151] [2024-11-24 00:16:04,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:04,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:16:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:04,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:16:04,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625959151] [2024-11-24 00:16:04,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625959151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:04,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:04,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:16:04,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717869067] [2024-11-24 00:16:04,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:04,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:16:04,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:16:04,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:16:04,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:16:04,267 INFO L87 Difference]: Start difference. First operand 113 states and 159 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:04,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:04,308 INFO L93 Difference]: Finished difference Result 204 states and 287 transitions. [2024-11-24 00:16:04,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:16:04,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-11-24 00:16:04,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:04,310 INFO L225 Difference]: With dead ends: 204 [2024-11-24 00:16:04,310 INFO L226 Difference]: Without dead ends: 114 [2024-11-24 00:16:04,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:16:04,314 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:04,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 230 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:16:04,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-24 00:16:04,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-24 00:16:04,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 93 states have (on average 1.3333333333333333) internal successors, (124), 94 states have internal predecessors, (124), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:16:04,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 160 transitions. [2024-11-24 00:16:04,344 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 160 transitions. Word has length 96 [2024-11-24 00:16:04,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:04,344 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 160 transitions. [2024-11-24 00:16:04,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:04,346 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 160 transitions. [2024-11-24 00:16:04,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 00:16:04,348 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:04,348 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:04,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:16:04,349 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:04,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:04,349 INFO L85 PathProgramCache]: Analyzing trace with hash 329802229, now seen corresponding path program 1 times [2024-11-24 00:16:04,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:16:04,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737215457] [2024-11-24 00:16:04,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:04,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:16:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:04,859 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:04,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:16:04,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737215457] [2024-11-24 00:16:04,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737215457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:04,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:04,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:16:04,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190232785] [2024-11-24 00:16:04,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:04,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:16:04,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:16:04,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:16:04,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:16:04,861 INFO L87 Difference]: Start difference. First operand 114 states and 160 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:16:05,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:05,115 INFO L93 Difference]: Finished difference Result 251 states and 345 transitions. [2024-11-24 00:16:05,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:16:05,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2024-11-24 00:16:05,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:05,118 INFO L225 Difference]: With dead ends: 251 [2024-11-24 00:16:05,118 INFO L226 Difference]: Without dead ends: 160 [2024-11-24 00:16:05,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:16:05,119 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 57 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:05,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 613 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:16:05,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-24 00:16:05,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2024-11-24 00:16:05,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 132 states have (on average 1.3257575757575757) internal successors, (175), 134 states have internal predecessors, (175), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:16:05,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 215 transitions. [2024-11-24 00:16:05,152 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 215 transitions. Word has length 96 [2024-11-24 00:16:05,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:05,152 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 215 transitions. [2024-11-24 00:16:05,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:16:05,153 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 215 transitions. [2024-11-24 00:16:05,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:16:05,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:05,154 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:05,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:16:05,155 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:05,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:05,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1874819353, now seen corresponding path program 1 times [2024-11-24 00:16:05,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:16:05,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567072655] [2024-11-24 00:16:05,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:05,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:16:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:05,646 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:05,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:16:05,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567072655] [2024-11-24 00:16:05,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567072655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:05,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:05,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:16:05,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644262775] [2024-11-24 00:16:05,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:05,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:16:05,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:16:05,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:16:05,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:16:05,653 INFO L87 Difference]: Start difference. First operand 157 states and 215 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:16:05,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:05,902 INFO L93 Difference]: Finished difference Result 287 states and 388 transitions. [2024-11-24 00:16:05,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:16:05,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2024-11-24 00:16:05,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:05,905 INFO L225 Difference]: With dead ends: 287 [2024-11-24 00:16:05,905 INFO L226 Difference]: Without dead ends: 157 [2024-11-24 00:16:05,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:16:05,907 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 46 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:05,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 534 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:16:05,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-24 00:16:05,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 122. [2024-11-24 00:16:05,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 99 states have (on average 1.292929292929293) internal successors, (128), 100 states have internal predecessors, (128), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:16:05,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 164 transitions. [2024-11-24 00:16:05,929 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 164 transitions. Word has length 97 [2024-11-24 00:16:05,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:05,930 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 164 transitions. [2024-11-24 00:16:05,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:16:05,930 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 164 transitions. [2024-11-24 00:16:05,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 00:16:05,931 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:05,932 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:05,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:16:05,932 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:05,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:05,933 INFO L85 PathProgramCache]: Analyzing trace with hash -421311151, now seen corresponding path program 1 times [2024-11-24 00:16:05,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:16:05,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262250286] [2024-11-24 00:16:05,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:05,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:16:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:06,655 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:06,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:16:06,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262250286] [2024-11-24 00:16:06,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262250286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:06,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:06,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:16:06,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721857559] [2024-11-24 00:16:06,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:06,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:16:06,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:16:06,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:16:06,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:16:06,660 INFO L87 Difference]: Start difference. First operand 122 states and 164 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:06,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:06,986 INFO L93 Difference]: Finished difference Result 307 states and 411 transitions. [2024-11-24 00:16:06,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:16:06,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 98 [2024-11-24 00:16:06,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:06,989 INFO L225 Difference]: With dead ends: 307 [2024-11-24 00:16:06,989 INFO L226 Difference]: Without dead ends: 212 [2024-11-24 00:16:06,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:16:06,991 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 91 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:06,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 732 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:16:06,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-24 00:16:07,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 209. [2024-11-24 00:16:07,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 174 states have (on average 1.2988505747126438) internal successors, (226), 176 states have internal predecessors, (226), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:16:07,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 280 transitions. [2024-11-24 00:16:07,031 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 280 transitions. Word has length 98 [2024-11-24 00:16:07,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:07,032 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 280 transitions. [2024-11-24 00:16:07,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:07,033 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 280 transitions. [2024-11-24 00:16:07,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:16:07,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:07,035 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:07,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:16:07,035 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:07,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:07,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1036545903, now seen corresponding path program 1 times [2024-11-24 00:16:07,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:16:07,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176406288] [2024-11-24 00:16:07,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:07,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:16:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:07,368 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:07,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:16:07,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176406288] [2024-11-24 00:16:07,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176406288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:07,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:07,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:16:07,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12008149] [2024-11-24 00:16:07,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:07,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:16:07,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:16:07,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:16:07,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:16:07,371 INFO L87 Difference]: Start difference. First operand 209 states and 280 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:07,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:07,554 INFO L93 Difference]: Finished difference Result 466 states and 626 transitions. [2024-11-24 00:16:07,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:16:07,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-24 00:16:07,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:07,558 INFO L225 Difference]: With dead ends: 466 [2024-11-24 00:16:07,559 INFO L226 Difference]: Without dead ends: 284 [2024-11-24 00:16:07,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:16:07,561 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 89 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:07,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 364 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:16:07,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-11-24 00:16:07,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 217. [2024-11-24 00:16:07,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 182 states have (on average 1.2857142857142858) internal successors, (234), 184 states have internal predecessors, (234), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:16:07,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 288 transitions. [2024-11-24 00:16:07,617 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 288 transitions. Word has length 99 [2024-11-24 00:16:07,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:07,618 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 288 transitions. [2024-11-24 00:16:07,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:07,618 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 288 transitions. [2024-11-24 00:16:07,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:16:07,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:07,620 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:07,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:16:07,621 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:07,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:07,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1365186479, now seen corresponding path program 1 times [2024-11-24 00:16:07,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:16:07,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348893097] [2024-11-24 00:16:07,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:07,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:16:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:07,843 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-24 00:16:07,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:16:07,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348893097] [2024-11-24 00:16:07,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348893097] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:16:07,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028414369] [2024-11-24 00:16:07,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:07,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:16:07,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:16:07,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:16:07,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:16:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:08,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:16:08,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:08,203 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:08,203 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:16:08,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028414369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:08,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:16:08,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-11-24 00:16:08,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411715119] [2024-11-24 00:16:08,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:08,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:16:08,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:16:08,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:16:08,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:16:08,206 INFO L87 Difference]: Start difference. First operand 217 states and 288 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:08,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:08,287 INFO L93 Difference]: Finished difference Result 413 states and 548 transitions. [2024-11-24 00:16:08,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:16:08,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-24 00:16:08,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:08,290 INFO L225 Difference]: With dead ends: 413 [2024-11-24 00:16:08,290 INFO L226 Difference]: Without dead ends: 223 [2024-11-24 00:16:08,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:16:08,292 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:08,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 454 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:16:08,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-24 00:16:08,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 219. [2024-11-24 00:16:08,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 184 states have (on average 1.2826086956521738) internal successors, (236), 186 states have internal predecessors, (236), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:16:08,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 290 transitions. [2024-11-24 00:16:08,340 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 290 transitions. Word has length 99 [2024-11-24 00:16:08,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:08,340 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 290 transitions. [2024-11-24 00:16:08,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:08,341 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 290 transitions. [2024-11-24 00:16:08,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:16:08,344 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:08,344 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:08,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:16:08,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-24 00:16:08,548 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:08,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:08,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1572870353, now seen corresponding path program 1 times [2024-11-24 00:16:08,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:16:08,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017548361] [2024-11-24 00:16:08,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:08,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:16:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:08,912 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:08,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:16:08,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017548361] [2024-11-24 00:16:08,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017548361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:08,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:08,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:16:08,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141542211] [2024-11-24 00:16:08,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:08,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:16:08,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:16:08,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:16:08,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:16:08,914 INFO L87 Difference]: Start difference. First operand 219 states and 290 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:09,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:09,171 INFO L93 Difference]: Finished difference Result 546 states and 718 transitions. [2024-11-24 00:16:09,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:16:09,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-24 00:16:09,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:09,174 INFO L225 Difference]: With dead ends: 546 [2024-11-24 00:16:09,175 INFO L226 Difference]: Without dead ends: 354 [2024-11-24 00:16:09,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:16:09,176 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 71 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:09,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 791 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:16:09,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-24 00:16:09,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 227. [2024-11-24 00:16:09,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 192 states have (on average 1.2916666666666667) internal successors, (248), 194 states have internal predecessors, (248), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:16:09,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 302 transitions. [2024-11-24 00:16:09,218 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 302 transitions. Word has length 99 [2024-11-24 00:16:09,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:09,218 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 302 transitions. [2024-11-24 00:16:09,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:09,219 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 302 transitions. [2024-11-24 00:16:09,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:16:09,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:09,220 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:09,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:16:09,221 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:09,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:09,222 INFO L85 PathProgramCache]: Analyzing trace with hash 551801999, now seen corresponding path program 1 times [2024-11-24 00:16:09,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:16:09,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632838284] [2024-11-24 00:16:09,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:09,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:16:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:09,678 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:09,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:16:09,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632838284] [2024-11-24 00:16:09,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632838284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:09,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:09,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:16:09,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914548211] [2024-11-24 00:16:09,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:09,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:16:09,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:16:09,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:16:09,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:16:09,681 INFO L87 Difference]: Start difference. First operand 227 states and 302 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:10,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:10,090 INFO L93 Difference]: Finished difference Result 538 states and 707 transitions. [2024-11-24 00:16:10,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:16:10,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-24 00:16:10,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:10,096 INFO L225 Difference]: With dead ends: 538 [2024-11-24 00:16:10,096 INFO L226 Difference]: Without dead ends: 338 [2024-11-24 00:16:10,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:16:10,099 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 132 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:10,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 573 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:16:10,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-24 00:16:10,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 191. [2024-11-24 00:16:10,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 164 states have (on average 1.2865853658536586) internal successors, (211), 165 states have internal predecessors, (211), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:16:10,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 251 transitions. [2024-11-24 00:16:10,155 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 251 transitions. Word has length 99 [2024-11-24 00:16:10,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:10,156 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 251 transitions. [2024-11-24 00:16:10,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:10,156 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 251 transitions. [2024-11-24 00:16:10,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:16:10,159 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:10,160 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:10,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:16:10,160 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:10,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:10,161 INFO L85 PathProgramCache]: Analyzing trace with hash -2001270962, now seen corresponding path program 1 times [2024-11-24 00:16:10,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:16:10,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779213803] [2024-11-24 00:16:10,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:10,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:16:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:16:10,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1459301066] [2024-11-24 00:16:10,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:10,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:16:10,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:16:10,252 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:16:10,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:16:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:10,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-24 00:16:10,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:11,171 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 25 treesize of output 13 [2024-11-24 00:16:11,375 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 29 treesize of output 13 [2024-11-24 00:16:11,556 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 25 treesize of output 13 [2024-11-24 00:16:11,935 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:11,936 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 48 treesize of output 36 [2024-11-24 00:16:12,062 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:12,063 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 56 treesize of output 49 [2024-11-24 00:16:12,272 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:12,273 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 68 treesize of output 24 [2024-11-24 00:16:12,302 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:12,302 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:16:12,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:16:12,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779213803] [2024-11-24 00:16:12,303 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:16:12,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459301066] [2024-11-24 00:16:12,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459301066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:12,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:12,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:16:12,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107649551] [2024-11-24 00:16:12,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:12,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:16:12,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:16:12,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:16:12,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:16:12,305 INFO L87 Difference]: Start difference. First operand 191 states and 251 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:13,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:13,082 INFO L93 Difference]: Finished difference Result 510 states and 669 transitions. [2024-11-24 00:16:13,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:16:13,083 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-24 00:16:13,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:13,085 INFO L225 Difference]: With dead ends: 510 [2024-11-24 00:16:13,085 INFO L226 Difference]: Without dead ends: 322 [2024-11-24 00:16:13,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:16:13,088 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 147 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:13,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 860 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:16:13,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-24 00:16:13,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 273. [2024-11-24 00:16:13,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 231 states have (on average 1.2727272727272727) internal successors, (294), 232 states have internal predecessors, (294), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-24 00:16:13,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 356 transitions. [2024-11-24 00:16:13,160 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 356 transitions. Word has length 99 [2024-11-24 00:16:13,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:13,162 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 356 transitions. [2024-11-24 00:16:13,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:13,162 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 356 transitions. [2024-11-24 00:16:13,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 00:16:13,168 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:13,168 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:13,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:16:13,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-24 00:16:13,369 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:13,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:13,370 INFO L85 PathProgramCache]: Analyzing trace with hash 325744351, now seen corresponding path program 1 times [2024-11-24 00:16:13,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:16:13,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867532318] [2024-11-24 00:16:13,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:13,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:16:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:13,597 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-24 00:16:13,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:16:13,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867532318] [2024-11-24 00:16:13,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867532318] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:16:13,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073199172] [2024-11-24 00:16:13,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:13,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:16:13,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:16:13,602 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:16:13,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:16:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:13,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:16:13,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:13,943 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:13,943 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:16:13,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073199172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:13,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:16:13,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-11-24 00:16:13,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759105849] [2024-11-24 00:16:13,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:13,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:16:13,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:16:13,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:16:13,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:16:13,945 INFO L87 Difference]: Start difference. First operand 273 states and 356 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:14,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:14,033 INFO L93 Difference]: Finished difference Result 469 states and 614 transitions. [2024-11-24 00:16:14,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:16:14,034 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 100 [2024-11-24 00:16:14,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:14,038 INFO L225 Difference]: With dead ends: 469 [2024-11-24 00:16:14,038 INFO L226 Difference]: Without dead ends: 281 [2024-11-24 00:16:14,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:16:14,041 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:14,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 556 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:16:14,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-24 00:16:14,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 278. [2024-11-24 00:16:14,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 236 states have (on average 1.2669491525423728) internal successors, (299), 237 states have internal predecessors, (299), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-24 00:16:14,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 361 transitions. [2024-11-24 00:16:14,100 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 361 transitions. Word has length 100 [2024-11-24 00:16:14,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:14,101 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 361 transitions. [2024-11-24 00:16:14,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:14,101 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 361 transitions. [2024-11-24 00:16:14,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 00:16:14,104 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:14,105 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:14,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 00:16:14,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-24 00:16:14,306 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:14,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:14,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1298355466, now seen corresponding path program 1 times [2024-11-24 00:16:14,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:16:14,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012323870] [2024-11-24 00:16:14,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:14,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:16:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:16:14,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1173351030] [2024-11-24 00:16:14,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:14,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:16:14,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:16:14,399 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:16:14,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:16:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:16:14,876 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:16:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:16:15,231 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:16:15,231 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:16:15,233 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:16:15,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 00:16:15,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-24 00:16:15,440 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:16:15,577 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:16:15,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:16:15 BoogieIcfgContainer [2024-11-24 00:16:15,585 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:16:15,587 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:16:15,587 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:16:15,588 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:16:15,588 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:15:55" (3/4) ... [2024-11-24 00:16:15,592 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:16:15,593 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:16:15,594 INFO L158 Benchmark]: Toolchain (without parser) took 22373.47ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 91.3MB in the beginning and 163.9MB in the end (delta: -72.6MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. [2024-11-24 00:16:15,594 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 83.9MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:16:15,594 INFO L158 Benchmark]: CACSL2BoogieTranslator took 502.11ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 76.7MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:16:15,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.85ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 73.3MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:16:15,595 INFO L158 Benchmark]: Boogie Preprocessor took 115.66ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 69.4MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:16:15,595 INFO L158 Benchmark]: RCFGBuilder took 1111.04ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 41.7MB in the end (delta: 27.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 00:16:15,595 INFO L158 Benchmark]: TraceAbstraction took 20540.95ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 41.3MB in the beginning and 163.9MB in the end (delta: -122.6MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2024-11-24 00:16:15,598 INFO L158 Benchmark]: Witness Printer took 5.74ms. Allocated memory is still 268.4MB. Free memory was 163.9MB in the beginning and 163.9MB in the end (delta: 23.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:16:15,600 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 83.9MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 502.11ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 76.7MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.85ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 73.3MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 115.66ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 69.4MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1111.04ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 41.7MB in the end (delta: 27.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 20540.95ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 41.3MB in the beginning and 163.9MB in the end (delta: -122.6MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * Witness Printer took 5.74ms. Allocated memory is still 268.4MB. Free memory was 163.9MB in the beginning and 163.9MB in the end (delta: 23.6kB). 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 someBinaryDOUBLEComparisonOperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 98. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L25-L27] double double_Array_0[2] = { 0.97, 32.6 }; [L25-L27] double double_Array_0[2] = { 0.97, 32.6 }; [L25-L27] double double_Array_0[2] = { 0.97, 32.6 }; [L28-L30] signed long int signed_long_int_Array_0[2][2] = { {-32, 1107940323}, {4, 200} }; [L28-L30] signed long int signed_long_int_Array_0[2][2] = { {-32, 1107940323}, {4, 200} }; [L28-L30] signed long int signed_long_int_Array_0[2][2] = { {-32, 1107940323}, {4, 200} }; [L28-L30] signed long int signed_long_int_Array_0[2][2] = { {-32, 1107940323}, {4, 200} }; [L28-L30] signed long int signed_long_int_Array_0[2][2] = { {-32, 1107940323}, {4, 200} }; [L31-L33] unsigned char unsigned_char_Array_0[2] = { 4, 64 }; [L31-L33] unsigned char unsigned_char_Array_0[2] = { 4, 64 }; [L31-L33] unsigned char unsigned_char_Array_0[2] = { 4, 64 }; [L34] double last_1_double_Array_0_0_ = 0.97; [L35] signed long int last_1_signed_long_int_Array_0_1__0_ = 4; VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=0, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L102] isInitial = 1 [L103] FCALL initially() [L105] CALL updateLastVariables() [L94] EXPR double_Array_0[0] [L94] last_1_double_Array_0_0_ = double_Array_0[0] [L95] EXPR signed_long_int_Array_0[1][0] [L95] last_1_signed_long_int_Array_0_1__0_ = signed_long_int_Array_0[1][0] [L105] RET updateLastVariables() [L106] CALL updateVariables() [L75] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L76] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L76] 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, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L76] 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, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L78] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L79] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L79] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L79] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] 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, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] 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, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L81] double_Array_0[1] = __VERIFIER_nondet_double() [L82] EXPR double_Array_0[1] [L82] EXPR double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] EXPR double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F [L82] EXPR double_Array_0[1] [L82] EXPR double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] EXPR (double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] EXPR (double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] CALL assume_abort_if_not((double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+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, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] RET assume_abort_if_not((double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] signed_long_int_Array_0[0][0] = __VERIFIER_nondet_long() [L84] EXPR signed_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L84] CALL assume_abort_if_not(signed_long_int_Array_0[0][0] >= -1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L84] RET assume_abort_if_not(signed_long_int_Array_0[0][0] >= -1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L85] EXPR signed_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L85] CALL assume_abort_if_not(signed_long_int_Array_0[0][0] <= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L85] RET assume_abort_if_not(signed_long_int_Array_0[0][0] <= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L86] signed_long_int_Array_0[0][1] = __VERIFIER_nondet_long() [L87] EXPR signed_long_int_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L87] CALL assume_abort_if_not(signed_long_int_Array_0[0][1] >= 1073741822) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L87] RET assume_abort_if_not(signed_long_int_Array_0[0][1] >= 1073741822) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L88] EXPR signed_long_int_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L88] CALL assume_abort_if_not(signed_long_int_Array_0[0][1] <= 2147483646) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L88] RET assume_abort_if_not(signed_long_int_Array_0[0][1] <= 2147483646) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L90] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L90] 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, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L90] 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, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L91] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L91] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L91] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L106] RET updateVariables() [L107] CALL step() [L39] EXPR signed_long_int_Array_0[0][1] [L39] EXPR signed_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L39] COND FALSE !(! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) [L46] EXPR unsigned_char_Array_0[0] [L46] unsigned_char_Array_0[1] = unsigned_char_Array_0[0] [L48] EXPR unsigned_char_Array_0[1] [L48] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L48] COND FALSE !(unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) [L51] EXPR unsigned_char_Array_0[1] [L51] EXPR signed_long_int_Array_0[0][1] [L51] signed_long_int_Array_0[1][0] = (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]) [L53] EXPR unsigned_char_Array_0[1] [L53] EXPR signed_long_int_Array_0[0][1] [L53] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L53] COND FALSE !((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) [L64] EXPR double_Array_0[1] [L64] double_Array_0[0] = double_Array_0[1] [L66] BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L66] COND TRUE BOOL_unsigned_char_Array_0[1] [L67] EXPR signed_long_int_Array_0[0][1] [L67] EXPR unsigned_char_Array_0[1] [L67] EXPR unsigned_char_Array_0[1] [L67] signed_long_int_Array_0[1][1] = ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]) [L107] RET step() [L108] CALL, EXPR property() [L98] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1) [L98] EXPR signed_long_int_Array_0[1][1] [L98] EXPR signed_long_int_Array_0[0][1] [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1])))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1])))) [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))) [L98] EXPR signed_long_int_Array_0[1][0] [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR signed_long_int_Array_0[0][1] [L98] EXPR (unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1])))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR ((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR ((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) [L98] EXPR signed_long_int_Array_0[0][1] [L98] EXPR signed_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR unsigned_char_Array_0[0] [L98] EXPR (! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR ((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])))) && (((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])))) && (((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) [L98] EXPR unsigned_char_Array_0[1] [L98] EXPR signed_long_int_Array_0[0][1] [L98] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR ((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1])) [L98] EXPR double_Array_0[0] [L98] EXPR double_Array_0[1] [L98] EXPR ((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR (((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])))) && (((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98-L99] return (((BOOL_unsigned_char_Array_0[1] ? (signed_long_int_Array_0[1][1] == ((signed long int) ((signed_long_int_Array_0[0][1] - unsigned_char_Array_0[1]) - unsigned_char_Array_0[1]))) : ((BOOL_unsigned_char_Array_0[0] && (signed_long_int_Array_0[0][1] < unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[1][1] == ((signed long int) signed_long_int_Array_0[0][1])) : 1)) && ((unsigned_char_Array_0[1] < unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] + unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[1][0] == ((signed long int) (unsigned_char_Array_0[1] - signed_long_int_Array_0[0][1]))))) && ((! (signed_long_int_Array_0[0][1] < (signed_long_int_Array_0[0][0] * last_1_signed_long_int_Array_0_1__0_))) ? ((((((last_1_double_Array_0_0_) < 0 ) ? -(last_1_double_Array_0_0_) : (last_1_double_Array_0_0_))) < last_1_double_Array_0_0_) ? (BOOL_unsigned_char_Array_0[0] ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])))) && (((unsigned_char_Array_0[1] + signed_long_int_Array_0[0][1]) < unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0] == ((double) 0.8)) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[1]))) : (double_Array_0[0] == ((double) double_Array_0[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, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0_=97/100, last_1_signed_long_int_Array_0_1__0_=4, signed_long_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.3s, OverallIterations: 16, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 802 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 798 mSDsluCounter, 7963 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5960 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1530 IncrementalHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 2003 mSDtfsCounter, 1530 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 509 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=15, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 15 MinimizatonAttempts, 496 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 10.8s InterpolantComputationTime, 2048 NumberOfCodeBlocks, 2048 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1731 ConstructedInterpolants, 0 QuantifiedInterpolants, 4964 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1438 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 18 InterpolantComputations, 15 PerfectInterpolantSequences, 3880/3960 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 00:16:15,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 84da415e9ad0a7cbbc07d5b79a769caa1c0599f3ba39b8d5c5504fcb214f076c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:16:18,895 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:16:19,070 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:16:19,079 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:16:19,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:16:19,152 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:16:19,155 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:16:19,155 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:16:19,155 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:16:19,156 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:16:19,156 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:16:19,156 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:16:19,157 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:16:19,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:16:19,158 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:16:19,160 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:16:19,160 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:16:19,160 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:16:19,160 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:16:19,160 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:16:19,160 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:16:19,160 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:16:19,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:16:19,161 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:16:19,161 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:16:19,161 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:16:19,161 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:16:19,161 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:16:19,161 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:16:19,161 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:16:19,161 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:16:19,161 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:16:19,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:16:19,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:16:19,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:16:19,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:16:19,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:16:19,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:16:19,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:16:19,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:16:19,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:16:19,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:16:19,163 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:16:19,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:16:19,163 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:16:19,163 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:16:19,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:16:19,163 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:16:19,163 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:16:19,163 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:16:19,163 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_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 -> 84da415e9ad0a7cbbc07d5b79a769caa1c0599f3ba39b8d5c5504fcb214f076c [2024-11-24 00:16:19,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:16:19,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:16:19,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:16:19,631 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:16:19,632 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:16:19,633 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i [2024-11-24 00:16:23,478 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/data/b16d37da5/35f5bfb50b664cd18204bf8d3f629463/FLAGa0cc782aa [2024-11-24 00:16:23,854 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:16:23,855 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i [2024-11-24 00:16:23,865 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/data/b16d37da5/35f5bfb50b664cd18204bf8d3f629463/FLAGa0cc782aa [2024-11-24 00:16:23,894 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/data/b16d37da5/35f5bfb50b664cd18204bf8d3f629463 [2024-11-24 00:16:23,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:16:23,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:16:23,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:16:23,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:16:23,912 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:16:23,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:16:23" (1/1) ... [2024-11-24 00:16:23,918 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c14b5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:16:23, skipping insertion in model container [2024-11-24 00:16:23,918 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:16:23" (1/1) ... [2024-11-24 00:16:23,946 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:16:24,169 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_4de76f9f-2e4d-4c92-a96f-e0351d77934e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i[916,929] [2024-11-24 00:16:24,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:16:24,323 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:16:24,337 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_4de76f9f-2e4d-4c92-a96f-e0351d77934e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-31.i[916,929] [2024-11-24 00:16:24,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:16:24,472 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:16:24,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:16:24 WrapperNode [2024-11-24 00:16:24,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:16:24,477 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:16:24,478 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:16:24,478 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:16:24,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:16:24" (1/1) ... [2024-11-24 00:16:24,517 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:16:24" (1/1) ... [2024-11-24 00:16:24,567 INFO L138 Inliner]: procedures = 33, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 412 [2024-11-24 00:16:24,567 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:16:24,568 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:16:24,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:16:24,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:16:24,580 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:16:24" (1/1) ... [2024-11-24 00:16:24,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:16:24" (1/1) ... [2024-11-24 00:16:24,588 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:16:24" (1/1) ... [2024-11-24 00:16:24,612 INFO L175 MemorySlicer]: Split 110 memory accesses to 5 slices as follows [2, 20, 22, 33, 33]. 30 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 2, 2, 4, 2]. The 16 writes are split as follows [0, 2, 5, 6, 3]. [2024-11-24 00:16:24,613 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:16:24" (1/1) ... [2024-11-24 00:16:24,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:16:24" (1/1) ... [2024-11-24 00:16:24,666 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:16:24" (1/1) ... [2024-11-24 00:16:24,672 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:16:24" (1/1) ... [2024-11-24 00:16:24,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:16:24" (1/1) ... [2024-11-24 00:16:24,683 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:16:24" (1/1) ... [2024-11-24 00:16:24,686 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:16:24" (1/1) ... [2024-11-24 00:16:24,703 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:16:24,704 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:16:24,705 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:16:24,705 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:16:24,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:16:24" (1/1) ... [2024-11-24 00:16:24,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:16:24,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:16:24,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:16:24,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:16:24,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:16:24,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-24 00:16:24,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-24 00:16:24,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-24 00:16:24,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-24 00:16:24,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-24 00:16:24,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-24 00:16:24,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-24 00:16:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-24 00:16:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-24 00:16:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-24 00:16:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-24 00:16:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-24 00:16:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-24 00:16:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-24 00:16:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-24 00:16:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:16:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-24 00:16:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-24 00:16:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-24 00:16:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-24 00:16:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-24 00:16:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-24 00:16:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-24 00:16:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-24 00:16:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-24 00:16:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-24 00:16:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-24 00:16:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-11-24 00:16:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-11-24 00:16:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-11-24 00:16:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-24 00:16:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-24 00:16:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-24 00:16:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-24 00:16:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-24 00:16:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:16:24,811 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:16:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:16:24,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:16:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-24 00:16:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-24 00:16:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-24 00:16:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-24 00:16:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-24 00:16:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-24 00:16:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-24 00:16:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-24 00:16:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-24 00:16:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-24 00:16:25,064 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:16:25,066 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:16:26,030 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-24 00:16:26,030 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:16:26,050 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:16:26,051 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:16:26,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:16:26 BoogieIcfgContainer [2024-11-24 00:16:26,051 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:16:26,054 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:16:26,054 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:16:26,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:16:26,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:16:23" (1/3) ... [2024-11-24 00:16:26,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e4f7fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:16:26, skipping insertion in model container [2024-11-24 00:16:26,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:16:24" (2/3) ... [2024-11-24 00:16:26,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e4f7fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:16:26, skipping insertion in model container [2024-11-24 00:16:26,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:16:26" (3/3) ... [2024-11-24 00:16:26,067 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-31.i [2024-11-24 00:16:26,089 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:16:26,092 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-31.i that has 2 procedures, 87 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:16:26,181 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:16:26,207 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;@5ad02d84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:16:26,207 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:16:26,212 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:16:26,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 00:16:26,229 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:26,230 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:26,231 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:26,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:26,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1922605135, now seen corresponding path program 1 times [2024-11-24 00:16:26,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:26,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471074326] [2024-11-24 00:16:26,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:26,263 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 00:16:26,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:26,269 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:26,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:26,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:16:26,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:26,889 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-24 00:16:26,891 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:16:26,892 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:26,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471074326] [2024-11-24 00:16:26,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471074326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:26,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:26,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:16:26,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925212846] [2024-11-24 00:16:26,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:26,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:16:26,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:16:26,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:16:26,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:16:26,937 INFO L87 Difference]: Start difference. First operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:16:26,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:26,987 INFO L93 Difference]: Finished difference Result 164 states and 256 transitions. [2024-11-24 00:16:26,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:16:26,990 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2024-11-24 00:16:26,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:26,999 INFO L225 Difference]: With dead ends: 164 [2024-11-24 00:16:27,000 INFO L226 Difference]: Without dead ends: 80 [2024-11-24 00:16:27,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 93 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 00:16:27,012 INFO L435 NwaCegarLoop]: 114 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, 114 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 00:16:27,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:16:27,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-24 00:16:27,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-24 00:16:27,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 67 states have (on average 1.373134328358209) internal successors, (92), 67 states have internal predecessors, (92), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:16:27,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2024-11-24 00:16:27,071 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 94 [2024-11-24 00:16:27,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:27,073 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2024-11-24 00:16:27,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:16:27,073 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2024-11-24 00:16:27,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 00:16:27,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:27,081 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:27,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:27,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:27,282 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:27,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:27,285 INFO L85 PathProgramCache]: Analyzing trace with hash 434162283, now seen corresponding path program 1 times [2024-11-24 00:16:27,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:27,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799740697] [2024-11-24 00:16:27,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:27,287 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 00:16:27,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:27,290 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:27,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:27,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:16:27,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:27,847 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 21 treesize of output 9 [2024-11-24 00:16:27,913 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:27,915 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:16:27,916 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:27,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799740697] [2024-11-24 00:16:27,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799740697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:27,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:27,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:16:27,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776882472] [2024-11-24 00:16:27,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:27,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:16:27,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:16:27,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:16:27,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:16:27,922 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:27,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:27,986 INFO L93 Difference]: Finished difference Result 157 states and 225 transitions. [2024-11-24 00:16:27,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:16:27,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2024-11-24 00:16:27,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:27,989 INFO L225 Difference]: With dead ends: 157 [2024-11-24 00:16:27,989 INFO L226 Difference]: Without dead ends: 80 [2024-11-24 00:16:27,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:16:27,995 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:27,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:16:28,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-24 00:16:28,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-24 00:16:28,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 67 states have (on average 1.3582089552238805) internal successors, (91), 67 states have internal predecessors, (91), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:16:28,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 113 transitions. [2024-11-24 00:16:28,022 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 113 transitions. Word has length 94 [2024-11-24 00:16:28,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:28,026 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 113 transitions. [2024-11-24 00:16:28,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:28,027 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 113 transitions. [2024-11-24 00:16:28,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 00:16:28,034 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:28,034 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:28,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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)] Forceful destruction successful, exit code 0 [2024-11-24 00:16:28,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:28,235 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:28,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:28,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1154185619, now seen corresponding path program 1 times [2024-11-24 00:16:28,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:28,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216223017] [2024-11-24 00:16:28,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:28,238 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 00:16:28,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:28,240 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:28,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:28,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 00:16:28,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:28,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:16:28,965 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 29 treesize of output 13 [2024-11-24 00:16:29,002 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 35 [2024-11-24 00:16:29,299 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-24 00:16:29,300 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:16:29,658 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:29,658 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:29,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216223017] [2024-11-24 00:16:29,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216223017] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:16:29,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:16:29,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-24 00:16:29,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269721563] [2024-11-24 00:16:29,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:29,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:16:29,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:16:29,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:16:29,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:16:29,662 INFO L87 Difference]: Start difference. First operand 80 states and 113 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:30,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:30,469 INFO L93 Difference]: Finished difference Result 214 states and 302 transitions. [2024-11-24 00:16:30,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:16:30,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2024-11-24 00:16:30,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:30,473 INFO L225 Difference]: With dead ends: 214 [2024-11-24 00:16:30,473 INFO L226 Difference]: Without dead ends: 137 [2024-11-24 00:16:30,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:16:30,479 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 75 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:30,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 479 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:16:30,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-24 00:16:30,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2024-11-24 00:16:30,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 113 states have (on average 1.3539823008849559) internal successors, (153), 114 states have internal predecessors, (153), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:16:30,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 189 transitions. [2024-11-24 00:16:30,535 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 189 transitions. Word has length 94 [2024-11-24 00:16:30,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:30,536 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 189 transitions. [2024-11-24 00:16:30,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:30,536 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 189 transitions. [2024-11-24 00:16:30,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 00:16:30,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:30,543 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:30,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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)] Forceful destruction successful, exit code 0 [2024-11-24 00:16:30,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:30,744 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:30,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:30,745 INFO L85 PathProgramCache]: Analyzing trace with hash -463624664, now seen corresponding path program 1 times [2024-11-24 00:16:30,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:30,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107354981] [2024-11-24 00:16:30,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:30,746 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 00:16:30,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:30,752 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:30,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:31,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:16:31,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:31,089 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 21 treesize of output 9 [2024-11-24 00:16:31,118 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:31,119 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:16:31,119 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:31,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2107354981] [2024-11-24 00:16:31,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2107354981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:31,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:31,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:16:31,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768005173] [2024-11-24 00:16:31,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:31,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:16:31,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:16:31,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:16:31,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:16:31,122 INFO L87 Difference]: Start difference. First operand 134 states and 189 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:31,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:31,167 INFO L93 Difference]: Finished difference Result 265 states and 375 transitions. [2024-11-24 00:16:31,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:16:31,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-11-24 00:16:31,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:31,172 INFO L225 Difference]: With dead ends: 265 [2024-11-24 00:16:31,172 INFO L226 Difference]: Without dead ends: 134 [2024-11-24 00:16:31,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:16:31,174 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:31,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 218 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:16:31,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-24 00:16:31,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2024-11-24 00:16:31,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 113 states have (on average 1.336283185840708) internal successors, (151), 114 states have internal predecessors, (151), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:16:31,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 187 transitions. [2024-11-24 00:16:31,201 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 187 transitions. Word has length 96 [2024-11-24 00:16:31,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:31,202 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 187 transitions. [2024-11-24 00:16:31,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:31,202 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 187 transitions. [2024-11-24 00:16:31,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 00:16:31,204 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:31,204 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:31,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:31,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:31,405 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:31,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:31,406 INFO L85 PathProgramCache]: Analyzing trace with hash -856651674, now seen corresponding path program 1 times [2024-11-24 00:16:31,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:31,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552618032] [2024-11-24 00:16:31,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:31,407 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 00:16:31,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:31,411 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:31,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:31,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 00:16:31,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:31,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:16:32,203 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 40 treesize of output 33 [2024-11-24 00:16:32,380 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:32,380 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 58 [2024-11-24 00:16:33,309 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:33,310 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 152 treesize of output 98 [2024-11-24 00:16:33,422 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-24 00:16:33,422 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:16:33,732 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:33,732 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:33,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552618032] [2024-11-24 00:16:33,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552618032] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:16:33,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:16:33,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2024-11-24 00:16:33,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823483381] [2024-11-24 00:16:33,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:33,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:16:33,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:16:33,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:16:33,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:16:33,735 INFO L87 Difference]: Start difference. First operand 134 states and 187 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:34,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:34,367 INFO L93 Difference]: Finished difference Result 294 states and 411 transitions. [2024-11-24 00:16:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:16:34,368 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-11-24 00:16:34,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:34,371 INFO L225 Difference]: With dead ends: 294 [2024-11-24 00:16:34,371 INFO L226 Difference]: Without dead ends: 163 [2024-11-24 00:16:34,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:16:34,373 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 82 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:34,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 541 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:16:34,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-24 00:16:34,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 110. [2024-11-24 00:16:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 89 states have (on average 1.303370786516854) internal successors, (116), 90 states have internal predecessors, (116), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:16:34,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 152 transitions. [2024-11-24 00:16:34,404 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 152 transitions. Word has length 96 [2024-11-24 00:16:34,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:34,405 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 152 transitions. [2024-11-24 00:16:34,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:34,405 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 152 transitions. [2024-11-24 00:16:34,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 00:16:34,407 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:34,407 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:34,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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)] Forceful destruction successful, exit code 0 [2024-11-24 00:16:34,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:34,608 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:34,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:34,609 INFO L85 PathProgramCache]: Analyzing trace with hash 916608243, now seen corresponding path program 1 times [2024-11-24 00:16:34,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:34,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423275669] [2024-11-24 00:16:34,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:34,609 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 00:16:34,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:34,611 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:34,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:34,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 00:16:34,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:34,899 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:34,899 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:16:34,900 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:34,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423275669] [2024-11-24 00:16:34,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423275669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:34,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:34,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:16:34,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978592781] [2024-11-24 00:16:34,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:34,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:16:34,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:16:34,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:16:34,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:16:34,902 INFO L87 Difference]: Start difference. First operand 110 states and 152 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:34,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:34,941 INFO L93 Difference]: Finished difference Result 198 states and 273 transitions. [2024-11-24 00:16:34,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:16:34,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-11-24 00:16:34,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:34,944 INFO L225 Difference]: With dead ends: 198 [2024-11-24 00:16:34,944 INFO L226 Difference]: Without dead ends: 111 [2024-11-24 00:16:34,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:16:34,946 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:34,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:16:34,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-24 00:16:34,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-24 00:16:34,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 90 states have (on average 1.3) internal successors, (117), 91 states have internal predecessors, (117), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:16:34,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 153 transitions. [2024-11-24 00:16:34,968 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 153 transitions. Word has length 96 [2024-11-24 00:16:34,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:34,968 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 153 transitions. [2024-11-24 00:16:34,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:34,969 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 153 transitions. [2024-11-24 00:16:34,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 00:16:34,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:34,971 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:34,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:35,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:35,172 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:35,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:35,172 INFO L85 PathProgramCache]: Analyzing trace with hash 329802229, now seen corresponding path program 1 times [2024-11-24 00:16:35,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:35,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788626093] [2024-11-24 00:16:35,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:35,173 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 00:16:35,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:35,177 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:35,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:35,478 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:16:35,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:35,904 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-24 00:16:35,904 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:16:36,061 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:36,062 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:36,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788626093] [2024-11-24 00:16:36,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1788626093] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:16:36,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:16:36,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-24 00:16:36,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655754625] [2024-11-24 00:16:36,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:36,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:16:36,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:16:36,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:16:36,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:16:36,065 INFO L87 Difference]: Start difference. First operand 111 states and 153 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:36,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:36,283 INFO L93 Difference]: Finished difference Result 243 states and 327 transitions. [2024-11-24 00:16:36,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:16:36,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-11-24 00:16:36,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:36,286 INFO L225 Difference]: With dead ends: 243 [2024-11-24 00:16:36,287 INFO L226 Difference]: Without dead ends: 155 [2024-11-24 00:16:36,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:16:36,289 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 53 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:36,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 456 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:16:36,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-24 00:16:36,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 152. [2024-11-24 00:16:36,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 127 states have (on average 1.2913385826771653) internal successors, (164), 129 states have internal predecessors, (164), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:16:36,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 204 transitions. [2024-11-24 00:16:36,321 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 204 transitions. Word has length 96 [2024-11-24 00:16:36,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:36,322 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 204 transitions. [2024-11-24 00:16:36,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:36,323 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 204 transitions. [2024-11-24 00:16:36,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:16:36,325 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:36,325 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:36,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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)] Forceful destruction successful, exit code 0 [2024-11-24 00:16:36,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:36,526 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:36,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:36,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1874819353, now seen corresponding path program 1 times [2024-11-24 00:16:36,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:36,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2076571467] [2024-11-24 00:16:36,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:36,528 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 00:16:36,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:36,533 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:36,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:36,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:16:36,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:37,220 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 33 treesize of output 15 [2024-11-24 00:16:37,258 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-24 00:16:37,259 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:16:37,433 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:37,433 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:37,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2076571467] [2024-11-24 00:16:37,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2076571467] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:16:37,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:16:37,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-24 00:16:37,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468238173] [2024-11-24 00:16:37,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:37,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:16:37,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:16:37,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:16:37,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:16:37,436 INFO L87 Difference]: Start difference. First operand 152 states and 204 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:37,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:37,632 INFO L93 Difference]: Finished difference Result 277 states and 366 transitions. [2024-11-24 00:16:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:16:37,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 97 [2024-11-24 00:16:37,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:37,635 INFO L225 Difference]: With dead ends: 277 [2024-11-24 00:16:37,635 INFO L226 Difference]: Without dead ends: 152 [2024-11-24 00:16:37,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:16:37,636 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 80 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:37,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 317 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:16:37,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-24 00:16:37,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 119. [2024-11-24 00:16:37,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 96 states have (on average 1.2604166666666667) internal successors, (121), 97 states have internal predecessors, (121), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:16:37,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 157 transitions. [2024-11-24 00:16:37,655 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 157 transitions. Word has length 97 [2024-11-24 00:16:37,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:37,656 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 157 transitions. [2024-11-24 00:16:37,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:37,656 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 157 transitions. [2024-11-24 00:16:37,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 00:16:37,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:37,658 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:37,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:37,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:37,859 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:37,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:37,859 INFO L85 PathProgramCache]: Analyzing trace with hash -421311151, now seen corresponding path program 1 times [2024-11-24 00:16:37,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:37,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836971621] [2024-11-24 00:16:37,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:37,860 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 00:16:37,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:37,865 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:37,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:38,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 00:16:38,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:38,263 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 00:16:38,270 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 19 treesize of output 19 [2024-11-24 00:16:38,373 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:38,373 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 60 treesize of output 30 [2024-11-24 00:16:38,408 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:38,409 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:16:38,409 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:38,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836971621] [2024-11-24 00:16:38,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836971621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:38,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:38,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:16:38,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87314320] [2024-11-24 00:16:38,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:38,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:16:38,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:16:38,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:16:38,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:16:38,411 INFO L87 Difference]: Start difference. First operand 119 states and 157 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:38,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:38,761 INFO L93 Difference]: Finished difference Result 299 states and 393 transitions. [2024-11-24 00:16:38,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:16:38,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 98 [2024-11-24 00:16:38,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:38,765 INFO L225 Difference]: With dead ends: 299 [2024-11-24 00:16:38,765 INFO L226 Difference]: Without dead ends: 207 [2024-11-24 00:16:38,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:16:38,769 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 87 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:38,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 634 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:16:38,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-24 00:16:38,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 204. [2024-11-24 00:16:38,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 169 states have (on average 1.272189349112426) internal successors, (215), 171 states have internal predecessors, (215), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:16:38,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 269 transitions. [2024-11-24 00:16:38,808 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 269 transitions. Word has length 98 [2024-11-24 00:16:38,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:38,809 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 269 transitions. [2024-11-24 00:16:38,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:38,810 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 269 transitions. [2024-11-24 00:16:38,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:16:38,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:38,813 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:38,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:39,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:39,013 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:39,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:39,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1036545903, now seen corresponding path program 1 times [2024-11-24 00:16:39,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:39,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496657356] [2024-11-24 00:16:39,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:39,015 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 00:16:39,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:39,017 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:39,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:39,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:16:39,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:39,382 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:39,382 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:16:39,383 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:39,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496657356] [2024-11-24 00:16:39,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496657356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:39,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:39,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:16:39,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469758554] [2024-11-24 00:16:39,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:39,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:16:39,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:16:39,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:16:39,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:16:39,384 INFO L87 Difference]: Start difference. First operand 204 states and 269 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:39,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:39,602 INFO L93 Difference]: Finished difference Result 452 states and 596 transitions. [2024-11-24 00:16:39,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:16:39,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-24 00:16:39,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:39,605 INFO L225 Difference]: With dead ends: 452 [2024-11-24 00:16:39,605 INFO L226 Difference]: Without dead ends: 275 [2024-11-24 00:16:39,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:16:39,607 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 42 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:39,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 451 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:16:39,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-11-24 00:16:39,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 212. [2024-11-24 00:16:39,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 177 states have (on average 1.2598870056497176) internal successors, (223), 179 states have internal predecessors, (223), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:16:39,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 277 transitions. [2024-11-24 00:16:39,638 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 277 transitions. Word has length 99 [2024-11-24 00:16:39,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:39,639 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 277 transitions. [2024-11-24 00:16:39,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:39,639 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 277 transitions. [2024-11-24 00:16:39,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:16:39,641 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:39,641 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:39,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:39,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:39,842 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:39,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:39,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1365186479, now seen corresponding path program 1 times [2024-11-24 00:16:39,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:39,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198360981] [2024-11-24 00:16:39,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:39,843 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 00:16:39,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:39,848 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:39,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:40,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:16:40,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:40,193 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:40,193 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:16:40,193 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:40,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198360981] [2024-11-24 00:16:40,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198360981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:40,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:40,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:16:40,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047720427] [2024-11-24 00:16:40,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:40,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:16:40,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:16:40,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:16:40,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:16:40,195 INFO L87 Difference]: Start difference. First operand 212 states and 277 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:40,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:40,276 INFO L93 Difference]: Finished difference Result 403 states and 526 transitions. [2024-11-24 00:16:40,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:16:40,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-24 00:16:40,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:40,279 INFO L225 Difference]: With dead ends: 403 [2024-11-24 00:16:40,279 INFO L226 Difference]: Without dead ends: 218 [2024-11-24 00:16:40,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:16:40,281 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:40,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 426 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:16:40,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-24 00:16:40,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 214. [2024-11-24 00:16:40,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 179 states have (on average 1.2569832402234637) internal successors, (225), 181 states have internal predecessors, (225), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:16:40,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 279 transitions. [2024-11-24 00:16:40,310 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 279 transitions. Word has length 99 [2024-11-24 00:16:40,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:40,311 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 279 transitions. [2024-11-24 00:16:40,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:40,311 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 279 transitions. [2024-11-24 00:16:40,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:16:40,313 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:40,313 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:40,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:40,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:40,517 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:40,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:40,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1572870353, now seen corresponding path program 1 times [2024-11-24 00:16:40,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:40,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719688830] [2024-11-24 00:16:40,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:40,519 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 00:16:40,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:40,521 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:40,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:40,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 00:16:40,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:40,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:16:41,016 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 29 treesize of output 13 [2024-11-24 00:16:41,059 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 37 treesize of output 19 [2024-11-24 00:16:41,098 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-24 00:16:41,098 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:16:41,209 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:41,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719688830] [2024-11-24 00:16:41,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [719688830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:16:41,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [594495918] [2024-11-24 00:16:41,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:41,209 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:16:41,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:16:41,219 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:16:41,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-24 00:16:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:42,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 00:16:42,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:42,548 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 15 treesize of output 15 [2024-11-24 00:16:42,700 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:42,701 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:16:42,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [594495918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:42,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:16:42,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-11-24 00:16:42,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428927549] [2024-11-24 00:16:42,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:42,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:16:42,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:16:42,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:16:42,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:16:42,702 INFO L87 Difference]: Start difference. First operand 214 states and 279 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:43,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:43,338 INFO L93 Difference]: Finished difference Result 532 states and 688 transitions. [2024-11-24 00:16:43,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:16:43,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-24 00:16:43,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:43,342 INFO L225 Difference]: With dead ends: 532 [2024-11-24 00:16:43,342 INFO L226 Difference]: Without dead ends: 345 [2024-11-24 00:16:43,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:16:43,344 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 126 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:43,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 659 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:16:43,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-24 00:16:43,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 222. [2024-11-24 00:16:43,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 187 states have (on average 1.267379679144385) internal successors, (237), 189 states have internal predecessors, (237), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:16:43,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 291 transitions. [2024-11-24 00:16:43,378 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 291 transitions. Word has length 99 [2024-11-24 00:16:43,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:43,379 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 291 transitions. [2024-11-24 00:16:43,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:43,379 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 291 transitions. [2024-11-24 00:16:43,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:16:43,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:43,381 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:43,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:43,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-24 00:16:43,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:16:43,782 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:43,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:43,782 INFO L85 PathProgramCache]: Analyzing trace with hash 551801999, now seen corresponding path program 1 times [2024-11-24 00:16:43,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:43,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728362111] [2024-11-24 00:16:43,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:43,783 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 00:16:43,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:43,787 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:43,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:44,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:16:44,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:44,175 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:44,175 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:16:44,175 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:44,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728362111] [2024-11-24 00:16:44,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728362111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:16:44,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:16:44,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:16:44,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311973870] [2024-11-24 00:16:44,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:44,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:16:44,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:16:44,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:16:44,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:16:44,177 INFO L87 Difference]: Start difference. First operand 222 states and 291 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:44,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:44,601 INFO L93 Difference]: Finished difference Result 524 states and 677 transitions. [2024-11-24 00:16:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:16:44,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-24 00:16:44,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:44,605 INFO L225 Difference]: With dead ends: 524 [2024-11-24 00:16:44,605 INFO L226 Difference]: Without dead ends: 329 [2024-11-24 00:16:44,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:16:44,607 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 69 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:44,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 435 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:16:44,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-24 00:16:44,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 186. [2024-11-24 00:16:44,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 159 states have (on average 1.2578616352201257) internal successors, (200), 160 states have internal predecessors, (200), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:16:44,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 240 transitions. [2024-11-24 00:16:44,639 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 240 transitions. Word has length 99 [2024-11-24 00:16:44,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:44,640 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 240 transitions. [2024-11-24 00:16:44,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:44,640 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 240 transitions. [2024-11-24 00:16:44,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:16:44,641 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:44,642 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:44,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:44,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:44,842 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:44,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:44,843 INFO L85 PathProgramCache]: Analyzing trace with hash -2001270962, now seen corresponding path program 1 times [2024-11-24 00:16:44,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:44,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276222960] [2024-11-24 00:16:44,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:44,844 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 00:16:44,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:44,849 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:44,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:16:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:45,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 00:16:45,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:45,286 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 9 treesize of output 3 [2024-11-24 00:16:45,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:16:46,075 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 26 treesize of output 14 [2024-11-24 00:16:46,587 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:46,588 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 45 treesize of output 26 [2024-11-24 00:16:46,902 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:46,903 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 63 [2024-11-24 00:16:46,919 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 60 treesize of output 42 [2024-11-24 00:16:47,310 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:47,310 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 81 treesize of output 37 [2024-11-24 00:16:47,403 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-24 00:16:47,403 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:16:49,565 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:16:49,566 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:49,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276222960] [2024-11-24 00:16:49,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276222960] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:16:49,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:16:49,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 19 [2024-11-24 00:16:49,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70172511] [2024-11-24 00:16:49,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:49,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:16:49,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:16:49,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:16:49,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:16:49,568 INFO L87 Difference]: Start difference. First operand 186 states and 240 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:16:55,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:16:59,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:17:03,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:17:07,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:17:11,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:17:15,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:17:19,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:17:23,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:17:24,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:17:24,693 INFO L93 Difference]: Finished difference Result 438 states and 562 transitions. [2024-11-24 00:17:24,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:17:24,697 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-24 00:17:24,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:17:24,699 INFO L225 Difference]: With dead ends: 438 [2024-11-24 00:17:24,699 INFO L226 Difference]: Without dead ends: 255 [2024-11-24 00:17:24,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:17:24,701 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 158 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:17:24,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 569 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 133 Invalid, 8 Unknown, 0 Unchecked, 34.6s Time] [2024-11-24 00:17:24,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-24 00:17:24,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 208. [2024-11-24 00:17:24,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 181 states have (on average 1.2486187845303867) internal successors, (226), 182 states have internal predecessors, (226), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:17:24,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 266 transitions. [2024-11-24 00:17:24,729 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 266 transitions. Word has length 99 [2024-11-24 00:17:24,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:17:24,733 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 266 transitions. [2024-11-24 00:17:24,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:17:24,733 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 266 transitions. [2024-11-24 00:17:24,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 00:17:24,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:17:24,734 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:17:24,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:17:24,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:17:24,935 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:17:24,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:17:24,935 INFO L85 PathProgramCache]: Analyzing trace with hash 325744351, now seen corresponding path program 1 times [2024-11-24 00:17:24,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:17:24,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41798454] [2024-11-24 00:17:24,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:17:24,936 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 00:17:24,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:17:24,938 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:17:24,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:17:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:17:25,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:17:25,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:17:25,277 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:17:25,277 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:17:25,277 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:17:25,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41798454] [2024-11-24 00:17:25,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41798454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:17:25,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:17:25,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:17:25,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270623686] [2024-11-24 00:17:25,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:17:25,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:17:25,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:17:25,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:17:25,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:17:25,279 INFO L87 Difference]: Start difference. First operand 208 states and 266 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:17:25,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:17:25,398 INFO L93 Difference]: Finished difference Result 416 states and 533 transitions. [2024-11-24 00:17:25,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:17:25,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 100 [2024-11-24 00:17:25,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:17:25,400 INFO L225 Difference]: With dead ends: 416 [2024-11-24 00:17:25,400 INFO L226 Difference]: Without dead ends: 211 [2024-11-24 00:17:25,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:17:25,403 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:17:25,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 522 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:17:25,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-24 00:17:25,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 208. [2024-11-24 00:17:25,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 181 states have (on average 1.2430939226519337) internal successors, (225), 182 states have internal predecessors, (225), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:17:25,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 265 transitions. [2024-11-24 00:17:25,430 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 265 transitions. Word has length 100 [2024-11-24 00:17:25,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:17:25,430 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 265 transitions. [2024-11-24 00:17:25,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:17:25,431 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 265 transitions. [2024-11-24 00:17:25,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 00:17:25,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:17:25,432 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:17:25,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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)] Ended with exit code 0 [2024-11-24 00:17:25,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:17:25,636 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:17:25,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:17:25,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1298355466, now seen corresponding path program 1 times [2024-11-24 00:17:25,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:17:25,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303690195] [2024-11-24 00:17:25,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:17:25,637 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 00:17:25,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:17:25,639 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:17:25,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (18)] Waiting until timeout for monitored process [2024-11-24 00:17:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:17:25,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 00:17:25,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:17:26,049 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 00:17:26,843 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:17:26,843 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 188 treesize of output 98 [2024-11-24 00:17:27,439 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:17:27,440 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 384 treesize of output 134 [2024-11-24 00:17:27,586 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-24 00:17:27,587 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:17:28,045 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:17:28,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303690195] [2024-11-24 00:17:28,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303690195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:17:28,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [982084384] [2024-11-24 00:17:28,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:17:28,046 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:17:28,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:17:28,048 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:17:28,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-24 00:17:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:17:29,276 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 00:17:29,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:17:29,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-24 00:17:31,743 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:17:31,743 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 1 case distinctions, treesize of input 166 treesize of output 100 [2024-11-24 00:17:32,965 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:17:32,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 299 treesize of output 151 [2024-11-24 00:17:33,007 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-24 00:17:33,007 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:17:33,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [982084384] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:17:33,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:17:33,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2024-11-24 00:17:33,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155230947] [2024-11-24 00:17:33,287 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:17:33,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:17:33,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:17:33,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:17:33,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:17:33,289 INFO L87 Difference]: Start difference. First operand 208 states and 265 transitions. Second operand has 18 states, 18 states have (on average 5.388888888888889) internal successors, (97), 17 states have internal predecessors, (97), 4 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-24 00:17:38,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:17:38,208 INFO L93 Difference]: Finished difference Result 542 states and 681 transitions. [2024-11-24 00:17:38,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:17:38,209 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.388888888888889) internal successors, (97), 17 states have internal predecessors, (97), 4 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 100 [2024-11-24 00:17:38,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:17:38,212 INFO L225 Difference]: With dead ends: 542 [2024-11-24 00:17:38,212 INFO L226 Difference]: Without dead ends: 540 [2024-11-24 00:17:38,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 232 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=167, Invalid=825, Unknown=0, NotChecked=0, Total=992 [2024-11-24 00:17:38,214 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 650 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:17:38,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 1004 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-24 00:17:38,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-24 00:17:38,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 532. [2024-11-24 00:17:38,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 467 states have (on average 1.2334047109207709) internal successors, (576), 473 states have internal predecessors, (576), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 42 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:17:38,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 672 transitions. [2024-11-24 00:17:38,275 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 672 transitions. Word has length 100 [2024-11-24 00:17:38,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:17:38,276 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 672 transitions. [2024-11-24 00:17:38,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.388888888888889) internal successors, (97), 17 states have internal predecessors, (97), 4 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-24 00:17:38,276 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 672 transitions. [2024-11-24 00:17:38,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 00:17:38,277 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:17:38,278 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:17:38,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (18)] Ended with exit code 0 [2024-11-24 00:17:38,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-11-24 00:17:38,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:17:38,678 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:17:38,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:17:38,679 INFO L85 PathProgramCache]: Analyzing trace with hash 2029261176, now seen corresponding path program 1 times [2024-11-24 00:17:38,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:17:38,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935144068] [2024-11-24 00:17:38,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:17:38,679 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 00:17:38,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:17:38,681 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:17:38,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (20)] Waiting until timeout for monitored process [2024-11-24 00:17:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:17:38,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:17:38,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:17:38,952 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-24 00:17:38,952 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:17:38,952 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:17:38,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935144068] [2024-11-24 00:17:38,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935144068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:17:38,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:17:38,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:17:38,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866100288] [2024-11-24 00:17:38,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:17:38,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:17:38,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:17:38,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:17:38,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:17:38,959 INFO L87 Difference]: Start difference. First operand 532 states and 672 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:17:39,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:17:39,076 INFO L93 Difference]: Finished difference Result 1061 states and 1341 transitions. [2024-11-24 00:17:39,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:17:39,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2024-11-24 00:17:39,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:17:39,079 INFO L225 Difference]: With dead ends: 1061 [2024-11-24 00:17:39,080 INFO L226 Difference]: Without dead ends: 532 [2024-11-24 00:17:39,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:17:39,081 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:17:39,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 316 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:17:39,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-24 00:17:39,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-11-24 00:17:39,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 467 states have (on average 1.2291220556745182) internal successors, (574), 473 states have internal predecessors, (574), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 42 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:17:39,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 670 transitions. [2024-11-24 00:17:39,154 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 670 transitions. Word has length 100 [2024-11-24 00:17:39,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:17:39,155 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 670 transitions. [2024-11-24 00:17:39,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:17:39,155 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 670 transitions. [2024-11-24 00:17:39,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 00:17:39,157 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:17:39,157 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:17:39,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (20)] Ended with exit code 0 [2024-11-24 00:17:39,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:17:39,358 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:17:39,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:17:39,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1665814440, now seen corresponding path program 1 times [2024-11-24 00:17:39,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:17:39,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264191342] [2024-11-24 00:17:39,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:17:39,359 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 00:17:39,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:17:39,362 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:17:39,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (21)] Waiting until timeout for monitored process [2024-11-24 00:17:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:17:39,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 00:17:39,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:17:39,697 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 9 treesize of output 3 [2024-11-24 00:17:39,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:17:40,211 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:17:40,211 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 45 treesize of output 26 [2024-11-24 00:17:40,295 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 32 treesize of output 26 [2024-11-24 00:17:40,303 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:17:40,304 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 52 treesize of output 42 [2024-11-24 00:17:40,789 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:17:40,789 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 78 treesize of output 40 [2024-11-24 00:17:40,853 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-24 00:17:40,853 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:17:42,034 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:17:42,034 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:17:42,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264191342] [2024-11-24 00:17:42,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264191342] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:17:42,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:17:42,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2024-11-24 00:17:42,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731859716] [2024-11-24 00:17:42,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:17:42,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:17:42,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:17:42,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:17:42,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:17:42,036 INFO L87 Difference]: Start difference. First operand 532 states and 670 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:17:46,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:17:50,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:17:51,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:17:51,626 INFO L93 Difference]: Finished difference Result 1145 states and 1438 transitions. [2024-11-24 00:17:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:17:51,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2024-11-24 00:17:51,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:17:51,635 INFO L225 Difference]: With dead ends: 1145 [2024-11-24 00:17:51,635 INFO L226 Difference]: Without dead ends: 616 [2024-11-24 00:17:51,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:17:51,637 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 40 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:17:51,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 459 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2024-11-24 00:17:51,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-11-24 00:17:51,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 515. [2024-11-24 00:17:51,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 450 states have (on average 1.22) internal successors, (549), 456 states have internal predecessors, (549), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 42 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:17:51,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 645 transitions. [2024-11-24 00:17:51,707 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 645 transitions. Word has length 101 [2024-11-24 00:17:51,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:17:51,708 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 645 transitions. [2024-11-24 00:17:51,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:17:51,708 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 645 transitions. [2024-11-24 00:17:51,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 00:17:51,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:17:51,710 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:17:51,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (21)] Ended with exit code 0 [2024-11-24 00:17:51,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:17:51,910 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:17:51,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:17:51,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1855279878, now seen corresponding path program 1 times [2024-11-24 00:17:51,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:17:51,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758989614] [2024-11-24 00:17:51,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:17:51,911 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 00:17:51,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:17:51,913 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:17:51,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (22)] Waiting until timeout for monitored process [2024-11-24 00:17:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:17:52,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:17:52,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:17:52,222 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-24 00:17:52,222 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:17:52,222 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:17:52,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758989614] [2024-11-24 00:17:52,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758989614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:17:52,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:17:52,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:17:52,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508636329] [2024-11-24 00:17:52,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:17:52,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:17:52,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:17:52,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:17:52,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:17:52,224 INFO L87 Difference]: Start difference. First operand 515 states and 645 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:17:52,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:17:52,557 INFO L93 Difference]: Finished difference Result 1059 states and 1321 transitions. [2024-11-24 00:17:52,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:17:52,557 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 102 [2024-11-24 00:17:52,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:17:52,560 INFO L225 Difference]: With dead ends: 1059 [2024-11-24 00:17:52,560 INFO L226 Difference]: Without dead ends: 543 [2024-11-24 00:17:52,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:17:52,562 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:17:52,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 448 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:17:52,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-11-24 00:17:52,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 515. [2024-11-24 00:17:52,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 450 states have (on average 1.2155555555555555) internal successors, (547), 456 states have internal predecessors, (547), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 42 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:17:52,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 643 transitions. [2024-11-24 00:17:52,628 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 643 transitions. Word has length 102 [2024-11-24 00:17:52,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:17:52,628 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 643 transitions. [2024-11-24 00:17:52,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:17:52,629 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 643 transitions. [2024-11-24 00:17:52,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 00:17:52,630 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:17:52,630 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:17:52,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (22)] Ended with exit code 0 [2024-11-24 00:17:52,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:17:52,831 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:17:52,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:17:52,831 INFO L85 PathProgramCache]: Analyzing trace with hash 531229628, now seen corresponding path program 1 times [2024-11-24 00:17:52,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:17:52,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103611988] [2024-11-24 00:17:52,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:17:52,832 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 00:17:52,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:17:52,834 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:17:52,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (23)] Waiting until timeout for monitored process [2024-11-24 00:17:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:17:53,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-24 00:17:53,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:17:53,262 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 00:17:54,085 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:17:54,085 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 186 treesize of output 96 [2024-11-24 00:17:54,626 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:17:54,626 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 382 treesize of output 132 [2024-11-24 00:17:54,786 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 130 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 00:17:54,786 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:17:55,212 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:17:55,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103611988] [2024-11-24 00:17:55,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103611988] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:17:55,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1384238117] [2024-11-24 00:17:55,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:17:55,212 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:17:55,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:17:55,214 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:17:55,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2024-11-24 00:17:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:17:56,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-24 00:17:56,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:17:56,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-24 00:18:07,919 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:18:07,919 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 1 case distinctions, treesize of input 164 treesize of output 98 [2024-11-24 00:18:09,033 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:18:09,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 193 treesize of output 81 [2024-11-24 00:18:09,083 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 130 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 00:18:09,083 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:18:09,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1384238117] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:18:09,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:18:09,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 24 [2024-11-24 00:18:09,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283966044] [2024-11-24 00:18:09,394 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:18:09,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-24 00:18:09,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:18:09,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-24 00:18:09,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=756, Unknown=1, NotChecked=0, Total=870 [2024-11-24 00:18:09,396 INFO L87 Difference]: Start difference. First operand 515 states and 643 transitions. Second operand has 25 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 22 states have internal predecessors, (107), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) [2024-11-24 00:18:15,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:18:15,804 INFO L93 Difference]: Finished difference Result 689 states and 843 transitions. [2024-11-24 00:18:15,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 00:18:15,805 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 22 states have internal predecessors, (107), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) Word has length 102 [2024-11-24 00:18:15,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:18:15,808 INFO L225 Difference]: With dead ends: 689 [2024-11-24 00:18:15,808 INFO L226 Difference]: Without dead ends: 687 [2024-11-24 00:18:15,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 228 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=394, Invalid=1861, Unknown=1, NotChecked=0, Total=2256 [2024-11-24 00:18:15,809 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 753 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:18:15,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1198 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-24 00:18:15,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-11-24 00:18:15,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 523. [2024-11-24 00:18:15,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 456 states have (on average 1.212719298245614) internal successors, (553), 462 states have internal predecessors, (553), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 42 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:18:15,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 649 transitions. [2024-11-24 00:18:15,894 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 649 transitions. Word has length 102 [2024-11-24 00:18:15,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:18:15,895 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 649 transitions. [2024-11-24 00:18:15,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 22 states have internal predecessors, (107), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) [2024-11-24 00:18:15,895 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 649 transitions. [2024-11-24 00:18:15,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:18:15,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:18:15,897 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:15,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (23)] Ended with exit code 0 [2024-11-24 00:18:16,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2024-11-24 00:18:16,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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=3,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:18:16,298 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:18:16,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:18:16,298 INFO L85 PathProgramCache]: Analyzing trace with hash -944868170, now seen corresponding path program 1 times [2024-11-24 00:18:16,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:18:16,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63891195] [2024-11-24 00:18:16,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:16,299 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 00:18:16,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:18:16,302 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:16,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (25)] Waiting until timeout for monitored process [2024-11-24 00:18:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:16,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 00:18:16,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:16,698 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 60 treesize of output 53 [2024-11-24 00:18:17,508 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:18:17,509 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 77 treesize of output 53 [2024-11-24 00:18:17,513 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 42 treesize of output 18 [2024-11-24 00:18:17,591 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:18:17,592 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:18:17,592 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:18:17,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63891195] [2024-11-24 00:18:17,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63891195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:18:17,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:18:17,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:18:17,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711814807] [2024-11-24 00:18:17,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:18:17,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:18:17,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:18:17,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:18:17,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:18:17,593 INFO L87 Difference]: Start difference. First operand 523 states and 649 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:18:20,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:18:20,534 INFO L93 Difference]: Finished difference Result 1542 states and 1893 transitions. [2024-11-24 00:18:20,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:18:20,535 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-24 00:18:20,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:18:20,539 INFO L225 Difference]: With dead ends: 1542 [2024-11-24 00:18:20,539 INFO L226 Difference]: Without dead ends: 1022 [2024-11-24 00:18:20,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:18:20,541 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 163 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:18:20,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 668 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-24 00:18:20,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2024-11-24 00:18:20,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 726. [2024-11-24 00:18:20,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 624 states have (on average 1.1923076923076923) internal successors, (744), 635 states have internal predecessors, (744), 72 states have call successors, (72), 29 states have call predecessors, (72), 29 states have return successors, (72), 61 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-24 00:18:20,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 888 transitions. [2024-11-24 00:18:20,685 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 888 transitions. Word has length 103 [2024-11-24 00:18:20,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:18:20,686 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 888 transitions. [2024-11-24 00:18:20,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:18:20,686 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 888 transitions. [2024-11-24 00:18:20,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:18:20,688 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:18:20,688 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:20,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (25)] Forceful destruction successful, exit code 0 [2024-11-24 00:18:20,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:20,889 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:18:20,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:18:20,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1351234095, now seen corresponding path program 1 times [2024-11-24 00:18:20,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:18:20,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798065949] [2024-11-24 00:18:20,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:20,890 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 00:18:20,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:18:20,892 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:20,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (26)] Waiting until timeout for monitored process [2024-11-24 00:18:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:21,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:18:21,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:21,631 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-24 00:18:21,631 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:18:21,807 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:18:21,807 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:18:21,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798065949] [2024-11-24 00:18:21,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798065949] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:18:21,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:18:21,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-24 00:18:21,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617979026] [2024-11-24 00:18:21,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:18:21,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:18:21,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:18:21,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:18:21,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:18:21,809 INFO L87 Difference]: Start difference. First operand 726 states and 888 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:18:22,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:18:22,027 INFO L93 Difference]: Finished difference Result 1710 states and 2076 transitions. [2024-11-24 00:18:22,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:18:22,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-24 00:18:22,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:18:22,032 INFO L225 Difference]: With dead ends: 1710 [2024-11-24 00:18:22,032 INFO L226 Difference]: Without dead ends: 1000 [2024-11-24 00:18:22,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:18:22,034 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 52 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:18:22,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 309 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:18:22,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2024-11-24 00:18:22,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 838. [2024-11-24 00:18:22,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 736 states have (on average 1.171195652173913) internal successors, (862), 747 states have internal predecessors, (862), 72 states have call successors, (72), 29 states have call predecessors, (72), 29 states have return successors, (72), 61 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-24 00:18:22,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1006 transitions. [2024-11-24 00:18:22,176 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1006 transitions. Word has length 103 [2024-11-24 00:18:22,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:18:22,176 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1006 transitions. [2024-11-24 00:18:22,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:18:22,177 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1006 transitions. [2024-11-24 00:18:22,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:18:22,179 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:18:22,179 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:22,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (26)] Forceful destruction successful, exit code 0 [2024-11-24 00:18:22,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:22,380 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:18:22,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:18:22,381 INFO L85 PathProgramCache]: Analyzing trace with hash -541887469, now seen corresponding path program 1 times [2024-11-24 00:18:22,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:18:22,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817262069] [2024-11-24 00:18:22,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:22,382 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 00:18:22,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:18:22,384 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:22,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (27)] Waiting until timeout for monitored process [2024-11-24 00:18:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:22,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 00:18:22,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:22,772 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 61 treesize of output 54 [2024-11-24 00:18:23,164 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:18:23,165 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 66 treesize of output 42 [2024-11-24 00:18:23,168 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 00:18:23,223 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:18:23,223 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:18:23,223 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:18:23,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817262069] [2024-11-24 00:18:23,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817262069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:18:23,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:18:23,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:18:23,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488652971] [2024-11-24 00:18:23,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:18:23,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:18:23,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:18:23,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:18:23,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:18:23,225 INFO L87 Difference]: Start difference. First operand 838 states and 1006 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:18:24,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:18:24,526 INFO L93 Difference]: Finished difference Result 1757 states and 2096 transitions. [2024-11-24 00:18:24,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:18:24,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-24 00:18:24,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:18:24,532 INFO L225 Difference]: With dead ends: 1757 [2024-11-24 00:18:24,532 INFO L226 Difference]: Without dead ends: 935 [2024-11-24 00:18:24,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:18:24,534 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 117 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:18:24,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 538 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:18:24,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-11-24 00:18:24,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 851. [2024-11-24 00:18:24,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 738 states have (on average 1.1571815718157181) internal successors, (854), 750 states have internal predecessors, (854), 79 states have call successors, (79), 33 states have call predecessors, (79), 33 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 00:18:24,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1012 transitions. [2024-11-24 00:18:24,709 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1012 transitions. Word has length 103 [2024-11-24 00:18:24,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:18:24,710 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1012 transitions. [2024-11-24 00:18:24,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:18:24,710 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1012 transitions. [2024-11-24 00:18:24,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:18:24,712 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:18:24,712 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:24,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (27)] Ended with exit code 0 [2024-11-24 00:18:24,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:24,913 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:18:24,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:18:24,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1160317400, now seen corresponding path program 1 times [2024-11-24 00:18:24,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:18:24,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [860680332] [2024-11-24 00:18:24,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:24,914 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 00:18:24,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:18:24,916 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:24,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (28)] Waiting until timeout for monitored process [2024-11-24 00:18:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:25,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 00:18:25,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:25,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:18:25,426 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 29 treesize of output 13 [2024-11-24 00:18:25,460 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 37 treesize of output 19 [2024-11-24 00:18:25,494 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-24 00:18:25,495 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:18:25,617 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:18:25,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [860680332] [2024-11-24 00:18:25,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [860680332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:18:25,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1016519830] [2024-11-24 00:18:25,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:25,618 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:18:25,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:18:25,619 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:18:25,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-24 00:18:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:26,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 00:18:26,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:26,751 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 00:18:27,023 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 23 treesize of output 11 [2024-11-24 00:18:27,060 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 31 treesize of output 19 [2024-11-24 00:18:27,074 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-24 00:18:27,074 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:18:27,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1016519830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:18:27,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:18:27,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-24 00:18:27,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820951571] [2024-11-24 00:18:27,168 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:18:27,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:18:27,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:18:27,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:18:27,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:18:27,169 INFO L87 Difference]: Start difference. First operand 851 states and 1012 transitions. Second operand has 12 states, 10 states have (on average 9.6) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) [2024-11-24 00:18:27,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:18:27,737 INFO L93 Difference]: Finished difference Result 1663 states and 1953 transitions. [2024-11-24 00:18:27,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:18:27,737 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 9.6) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) Word has length 104 [2024-11-24 00:18:27,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:18:27,741 INFO L225 Difference]: With dead ends: 1663 [2024-11-24 00:18:27,741 INFO L226 Difference]: Without dead ends: 828 [2024-11-24 00:18:27,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 259 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:18:27,743 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 73 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:18:27,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 350 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:18:27,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-11-24 00:18:27,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 784. [2024-11-24 00:18:27,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 667 states have (on average 1.1244377811094453) internal successors, (750), 679 states have internal predecessors, (750), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 00:18:27,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 908 transitions. [2024-11-24 00:18:27,889 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 908 transitions. Word has length 104 [2024-11-24 00:18:27,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:18:27,889 INFO L471 AbstractCegarLoop]: Abstraction has 784 states and 908 transitions. [2024-11-24 00:18:27,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 9.6) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) [2024-11-24 00:18:27,889 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 908 transitions. [2024-11-24 00:18:27,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:18:27,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:18:27,891 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:27,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (28)] Ended with exit code 0 [2024-11-24 00:18:28,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2024-11-24 00:18:28,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:18:28,292 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:18:28,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:18:28,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1812975801, now seen corresponding path program 1 times [2024-11-24 00:18:28,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:18:28,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119772054] [2024-11-24 00:18:28,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:28,293 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 00:18:28,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:18:28,294 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:28,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (30)] Waiting until timeout for monitored process [2024-11-24 00:18:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:28,655 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-24 00:18:28,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:28,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 10 [2024-11-24 00:18:30,051 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:18:30,051 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 198 treesize of output 102 [2024-11-24 00:18:30,758 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:18:30,758 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 394 treesize of output 138 [2024-11-24 00:18:30,958 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-24 00:18:30,958 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:18:31,505 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:18:31,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119772054] [2024-11-24 00:18:31,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119772054] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:18:31,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1593788877] [2024-11-24 00:18:31,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:31,505 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:18:31,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:18:31,507 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:18:31,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-24 00:18:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:32,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-24 00:18:32,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:32,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-24 00:18:35,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:18:35,010 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 1 case distinctions, treesize of input 166 treesize of output 100 [2024-11-24 00:18:35,929 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:18:35,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 326 treesize of output 142 [2024-11-24 00:18:35,963 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-24 00:18:35,963 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:18:36,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1593788877] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:18:36,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:18:36,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2024-11-24 00:18:36,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241989802] [2024-11-24 00:18:36,252 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:18:36,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:18:36,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:18:36,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:18:36,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:18:36,253 INFO L87 Difference]: Start difference. First operand 784 states and 908 transitions. Second operand has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 18 states have internal predecessors, (106), 4 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-24 00:18:40,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:18:40,965 INFO L93 Difference]: Finished difference Result 1080 states and 1236 transitions. [2024-11-24 00:18:40,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:18:40,967 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 18 states have internal predecessors, (106), 4 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 105 [2024-11-24 00:18:40,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:18:40,969 INFO L225 Difference]: With dead ends: 1080 [2024-11-24 00:18:40,970 INFO L226 Difference]: Without dead ends: 1078 [2024-11-24 00:18:40,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=186, Invalid=1004, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 00:18:40,970 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 317 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:18:40,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 1127 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-24 00:18:40,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2024-11-24 00:18:41,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 882. [2024-11-24 00:18:41,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 765 states have (on average 1.1241830065359477) internal successors, (860), 777 states have internal predecessors, (860), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 00:18:41,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1018 transitions. [2024-11-24 00:18:41,110 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1018 transitions. Word has length 105 [2024-11-24 00:18:41,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:18:41,110 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1018 transitions. [2024-11-24 00:18:41,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 18 states have internal predecessors, (106), 4 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-24 00:18:41,110 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1018 transitions. [2024-11-24 00:18:41,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:18:41,112 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:18:41,112 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:41,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (30)] Ended with exit code 0 [2024-11-24 00:18:41,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2024-11-24 00:18:41,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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=3,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:18:41,513 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:18:41,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:18:41,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1061662125, now seen corresponding path program 1 times [2024-11-24 00:18:41,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:18:41,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980353197] [2024-11-24 00:18:41,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:41,514 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 00:18:41,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:18:41,516 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:41,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (32)] Waiting until timeout for monitored process [2024-11-24 00:18:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:41,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:18:41,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:41,954 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:18:41,955 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:18:41,955 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:18:41,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980353197] [2024-11-24 00:18:41,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980353197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:18:41,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:18:41,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:18:41,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452836129] [2024-11-24 00:18:41,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:18:41,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:18:41,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:18:41,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:18:41,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:18:41,958 INFO L87 Difference]: Start difference. First operand 882 states and 1018 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:18:42,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:18:42,228 INFO L93 Difference]: Finished difference Result 2188 states and 2532 transitions. [2024-11-24 00:18:42,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:18:42,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-24 00:18:42,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:18:42,234 INFO L225 Difference]: With dead ends: 2188 [2024-11-24 00:18:42,234 INFO L226 Difference]: Without dead ends: 1322 [2024-11-24 00:18:42,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:18:42,236 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 30 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:18:42,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 482 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:18:42,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2024-11-24 00:18:42,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1208. [2024-11-24 00:18:42,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 1091 states have (on average 1.1301558203483044) internal successors, (1233), 1103 states have internal predecessors, (1233), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 00:18:42,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1391 transitions. [2024-11-24 00:18:42,419 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1391 transitions. Word has length 106 [2024-11-24 00:18:42,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:18:42,419 INFO L471 AbstractCegarLoop]: Abstraction has 1208 states and 1391 transitions. [2024-11-24 00:18:42,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:18:42,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1391 transitions. [2024-11-24 00:18:42,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:18:42,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:18:42,421 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:42,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (32)] Ended with exit code 0 [2024-11-24 00:18:42,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:42,622 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:18:42,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:18:42,622 INFO L85 PathProgramCache]: Analyzing trace with hash -999622511, now seen corresponding path program 1 times [2024-11-24 00:18:42,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:18:42,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [939650369] [2024-11-24 00:18:42,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:42,623 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 00:18:42,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:18:42,625 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:42,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (33)] Waiting until timeout for monitored process [2024-11-24 00:18:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:42,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 00:18:42,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:42,927 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:18:42,927 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:18:42,927 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:18:42,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [939650369] [2024-11-24 00:18:42,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [939650369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:18:42,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:18:42,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:18:42,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190617047] [2024-11-24 00:18:42,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:18:42,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:18:42,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:18:42,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:18:42,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:18:42,929 INFO L87 Difference]: Start difference. First operand 1208 states and 1391 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:18:43,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:18:43,103 INFO L93 Difference]: Finished difference Result 2224 states and 2563 transitions. [2024-11-24 00:18:43,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:18:43,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-24 00:18:43,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:18:43,106 INFO L225 Difference]: With dead ends: 2224 [2024-11-24 00:18:43,106 INFO L226 Difference]: Without dead ends: 1032 [2024-11-24 00:18:43,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:18:43,108 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:18:43,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 205 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:18:43,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2024-11-24 00:18:43,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1032. [2024-11-24 00:18:43,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 915 states have (on average 1.1245901639344262) internal successors, (1029), 927 states have internal predecessors, (1029), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 00:18:43,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1187 transitions. [2024-11-24 00:18:43,255 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1187 transitions. Word has length 106 [2024-11-24 00:18:43,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:18:43,255 INFO L471 AbstractCegarLoop]: Abstraction has 1032 states and 1187 transitions. [2024-11-24 00:18:43,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:18:43,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1187 transitions. [2024-11-24 00:18:43,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:18:43,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:18:43,257 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:43,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (33)] Forceful destruction successful, exit code 0 [2024-11-24 00:18:43,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:43,457 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:18:43,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:18:43,458 INFO L85 PathProgramCache]: Analyzing trace with hash 2092814708, now seen corresponding path program 1 times [2024-11-24 00:18:43,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:18:43,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819917063] [2024-11-24 00:18:43,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:43,458 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 00:18:43,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:18:43,460 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:43,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (34)] Waiting until timeout for monitored process [2024-11-24 00:18:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:43,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:18:43,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:43,828 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:18:43,829 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:18:43,829 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:18:43,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819917063] [2024-11-24 00:18:43,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819917063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:18:43,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:18:43,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:18:43,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088775164] [2024-11-24 00:18:43,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:18:43,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:18:43,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:18:43,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:18:43,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:18:43,830 INFO L87 Difference]: Start difference. First operand 1032 states and 1187 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:18:44,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:18:44,060 INFO L93 Difference]: Finished difference Result 2256 states and 2592 transitions. [2024-11-24 00:18:44,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:18:44,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-24 00:18:44,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:18:44,064 INFO L225 Difference]: With dead ends: 2256 [2024-11-24 00:18:44,064 INFO L226 Difference]: Without dead ends: 1240 [2024-11-24 00:18:44,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:18:44,065 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 26 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:18:44,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 456 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:18:44,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2024-11-24 00:18:44,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1208. [2024-11-24 00:18:44,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 1091 states have (on average 1.1191567369385884) internal successors, (1221), 1103 states have internal predecessors, (1221), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 00:18:44,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1379 transitions. [2024-11-24 00:18:44,235 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1379 transitions. Word has length 107 [2024-11-24 00:18:44,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:18:44,236 INFO L471 AbstractCegarLoop]: Abstraction has 1208 states and 1379 transitions. [2024-11-24 00:18:44,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:18:44,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1379 transitions. [2024-11-24 00:18:44,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:18:44,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:18:44,256 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:44,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (34)] Forceful destruction successful, exit code 0 [2024-11-24 00:18:44,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:44,457 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:18:44,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:18:44,457 INFO L85 PathProgramCache]: Analyzing trace with hash -278924554, now seen corresponding path program 1 times [2024-11-24 00:18:44,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:18:44,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971849070] [2024-11-24 00:18:44,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:44,458 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 00:18:44,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:18:44,459 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:44,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (35)] Waiting until timeout for monitored process [2024-11-24 00:18:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:44,746 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:18:44,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:45,094 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-24 00:18:45,094 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:18:45,203 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:18:45,203 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:18:45,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971849070] [2024-11-24 00:18:45,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971849070] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:18:45,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:18:45,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-24 00:18:45,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521053043] [2024-11-24 00:18:45,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:18:45,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:18:45,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:18:45,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:18:45,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:18:45,205 INFO L87 Difference]: Start difference. First operand 1208 states and 1379 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:18:45,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:18:45,470 INFO L93 Difference]: Finished difference Result 2388 states and 2730 transitions. [2024-11-24 00:18:45,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:18:45,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-24 00:18:45,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:18:45,475 INFO L225 Difference]: With dead ends: 2388 [2024-11-24 00:18:45,475 INFO L226 Difference]: Without dead ends: 1196 [2024-11-24 00:18:45,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:18:45,477 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 98 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:18:45,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 351 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:18:45,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2024-11-24 00:18:45,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1144. [2024-11-24 00:18:45,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1027 states have (on average 1.1207400194741968) internal successors, (1151), 1039 states have internal predecessors, (1151), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 00:18:45,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1309 transitions. [2024-11-24 00:18:45,733 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1309 transitions. Word has length 107 [2024-11-24 00:18:45,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:18:45,734 INFO L471 AbstractCegarLoop]: Abstraction has 1144 states and 1309 transitions. [2024-11-24 00:18:45,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:18:45,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1309 transitions. [2024-11-24 00:18:45,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:18:45,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:18:45,735 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:45,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (35)] Ended with exit code 0 [2024-11-24 00:18:45,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:45,936 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:18:45,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:18:45,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1490412621, now seen corresponding path program 1 times [2024-11-24 00:18:45,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:18:45,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646218637] [2024-11-24 00:18:45,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:45,937 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 00:18:45,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:18:45,939 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:18:45,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (36)] Waiting until timeout for monitored process [2024-11-24 00:18:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:46,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-24 00:18:46,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:46,545 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 00:18:47,830 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:18:47,831 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 186 treesize of output 96 [2024-11-24 00:18:48,582 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:18:48,583 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 382 treesize of output 132 [2024-11-24 00:18:48,839 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 130 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 00:18:48,839 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:18:49,492 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:18:49,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646218637] [2024-11-24 00:18:49,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1646218637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:18:49,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1916504943] [2024-11-24 00:18:49,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:18:49,492 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:18:49,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:18:49,496 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:18:49,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-24 00:18:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:18:51,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-24 00:18:51,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:51,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2024-11-24 00:19:00,757 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:19:00,758 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 1 case distinctions, treesize of input 156 treesize of output 94 [2024-11-24 00:19:01,976 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:19:01,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 289 treesize of output 145 [2024-11-24 00:19:02,020 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 130 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 00:19:02,020 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:19:02,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1916504943] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:19:02,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:19:02,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 25 [2024-11-24 00:19:02,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029391200] [2024-11-24 00:19:02,338 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:19:02,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-24 00:19:02,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:19:02,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-24 00:19:02,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=873, Unknown=1, NotChecked=0, Total=992 [2024-11-24 00:19:02,340 INFO L87 Difference]: Start difference. First operand 1144 states and 1309 transitions. Second operand has 26 states, 24 states have (on average 4.833333333333333) internal successors, (116), 23 states have internal predecessors, (116), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) [2024-11-24 00:19:07,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:07,559 INFO L93 Difference]: Finished difference Result 1421 states and 1607 transitions. [2024-11-24 00:19:07,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 00:19:07,560 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 4.833333333333333) internal successors, (116), 23 states have internal predecessors, (116), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) Word has length 107 [2024-11-24 00:19:07,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:07,563 INFO L225 Difference]: With dead ends: 1421 [2024-11-24 00:19:07,563 INFO L226 Difference]: Without dead ends: 1419 [2024-11-24 00:19:07,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 246 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=417, Invalid=2132, Unknown=1, NotChecked=0, Total=2550 [2024-11-24 00:19:07,565 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 641 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:07,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 1178 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-24 00:19:07,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2024-11-24 00:19:07,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 944. [2024-11-24 00:19:07,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 827 states have (on average 1.1160822249093107) internal successors, (923), 839 states have internal predecessors, (923), 79 states have call successors, (79), 37 states have call predecessors, (79), 37 states have return successors, (79), 67 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 00:19:07,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1081 transitions. [2024-11-24 00:19:07,705 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1081 transitions. Word has length 107 [2024-11-24 00:19:07,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:07,705 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1081 transitions. [2024-11-24 00:19:07,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 4.833333333333333) internal successors, (116), 23 states have internal predecessors, (116), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 4 states have call predecessors, (22), 6 states have call successors, (22) [2024-11-24 00:19:07,705 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1081 transitions. [2024-11-24 00:19:07,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:19:07,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:07,707 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:19:07,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (36)] Ended with exit code 0 [2024-11-24 00:19:07,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2024-11-24 00:19:08,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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=3,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:19:08,108 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:08,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:08,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1229739150, now seen corresponding path program 1 times [2024-11-24 00:19:08,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:19:08,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508773253] [2024-11-24 00:19:08,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:08,108 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 00:19:08,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:19:08,110 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:19:08,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (38)] Waiting until timeout for monitored process [2024-11-24 00:19:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:08,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 00:19:08,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:19:08,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:19:08,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2024-11-24 00:19:09,183 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:19:09,184 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 123 treesize of output 53 [2024-11-24 00:19:09,287 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:19:09,287 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:19:09,287 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:19:09,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508773253] [2024-11-24 00:19:09,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508773253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:19:09,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:19:09,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:19:09,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995705915] [2024-11-24 00:19:09,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:09,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:19:09,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:19:09,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:19:09,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:19:09,289 INFO L87 Difference]: Start difference. First operand 944 states and 1081 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:19:10,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:10,364 INFO L93 Difference]: Finished difference Result 1126 states and 1297 transitions. [2024-11-24 00:19:10,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:19:10,364 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-24 00:19:10,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:10,369 INFO L225 Difference]: With dead ends: 1126 [2024-11-24 00:19:10,369 INFO L226 Difference]: Without dead ends: 1124 [2024-11-24 00:19:10,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:19:10,370 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 145 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:10,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1258 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:19:10,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2024-11-24 00:19:10,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 924. [2024-11-24 00:19:10,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 819 states have (on average 1.1172161172161172) internal successors, (915), 829 states have internal predecessors, (915), 71 states have call successors, (71), 33 states have call predecessors, (71), 33 states have return successors, (71), 61 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-24 00:19:10,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1057 transitions. [2024-11-24 00:19:10,494 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1057 transitions. Word has length 108 [2024-11-24 00:19:10,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:10,495 INFO L471 AbstractCegarLoop]: Abstraction has 924 states and 1057 transitions. [2024-11-24 00:19:10,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:19:10,495 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1057 transitions. [2024-11-24 00:19:10,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:19:10,496 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:10,496 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:19:10,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (38)] Ended with exit code 0 [2024-11-24 00:19:10,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:19:10,696 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:10,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:10,697 INFO L85 PathProgramCache]: Analyzing trace with hash 420392524, now seen corresponding path program 1 times [2024-11-24 00:19:10,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:19:10,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779112664] [2024-11-24 00:19:10,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:10,697 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 00:19:10,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:19:10,699 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:19:10,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (39)] Waiting until timeout for monitored process [2024-11-24 00:19:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:11,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:19:11,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:19:11,124 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 18 treesize of output 10 [2024-11-24 00:19:11,176 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:19:11,176 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:19:11,177 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:19:11,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779112664] [2024-11-24 00:19:11,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779112664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:19:11,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:19:11,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:19:11,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526590280] [2024-11-24 00:19:11,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:11,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:19:11,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:19:11,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:19:11,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:19:11,178 INFO L87 Difference]: Start difference. First operand 924 states and 1057 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:19:11,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:11,845 INFO L93 Difference]: Finished difference Result 1862 states and 2128 transitions. [2024-11-24 00:19:11,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:19:11,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-24 00:19:11,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:11,850 INFO L225 Difference]: With dead ends: 1862 [2024-11-24 00:19:11,850 INFO L226 Difference]: Without dead ends: 954 [2024-11-24 00:19:11,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:19:11,852 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 27 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:11,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 466 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:19:11,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2024-11-24 00:19:11,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 922. [2024-11-24 00:19:11,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 817 states have (on average 1.1126070991432069) internal successors, (909), 827 states have internal predecessors, (909), 71 states have call successors, (71), 33 states have call predecessors, (71), 33 states have return successors, (71), 61 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-24 00:19:11,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1051 transitions. [2024-11-24 00:19:11,989 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1051 transitions. Word has length 108 [2024-11-24 00:19:11,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:11,990 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1051 transitions. [2024-11-24 00:19:11,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:19:11,991 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1051 transitions. [2024-11-24 00:19:11,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:19:11,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:11,993 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:19:12,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (39)] Ended with exit code 0 [2024-11-24 00:19:12,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:19:12,193 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:12,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:12,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1291778764, now seen corresponding path program 1 times [2024-11-24 00:19:12,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:19:12,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730010400] [2024-11-24 00:19:12,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:12,194 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 00:19:12,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:19:12,196 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:19:12,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (40)] Waiting until timeout for monitored process [2024-11-24 00:19:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:12,497 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:19:12,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:19:12,531 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 18 treesize of output 10 [2024-11-24 00:19:12,548 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:19:12,548 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:19:12,549 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:19:12,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730010400] [2024-11-24 00:19:12,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730010400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:19:12,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:19:12,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:19:12,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761055055] [2024-11-24 00:19:12,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:12,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:19:12,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:19:12,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:19:12,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:19:12,550 INFO L87 Difference]: Start difference. First operand 922 states and 1051 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:19:12,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:12,742 INFO L93 Difference]: Finished difference Result 1738 states and 1983 transitions. [2024-11-24 00:19:12,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:19:12,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-24 00:19:12,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:12,747 INFO L225 Difference]: With dead ends: 1738 [2024-11-24 00:19:12,747 INFO L226 Difference]: Without dead ends: 832 [2024-11-24 00:19:12,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:19:12,750 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:12,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 288 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:19:12,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2024-11-24 00:19:12,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2024-11-24 00:19:12,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 727 states have (on average 1.107290233837689) internal successors, (805), 737 states have internal predecessors, (805), 71 states have call successors, (71), 33 states have call predecessors, (71), 33 states have return successors, (71), 61 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-24 00:19:12,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 947 transitions. [2024-11-24 00:19:12,887 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 947 transitions. Word has length 108 [2024-11-24 00:19:12,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:12,887 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 947 transitions. [2024-11-24 00:19:12,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:19:12,887 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 947 transitions. [2024-11-24 00:19:12,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:19:12,888 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:12,888 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:19:12,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (40)] Ended with exit code 0 [2024-11-24 00:19:13,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:19:13,089 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:13,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:13,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1654958547, now seen corresponding path program 1 times [2024-11-24 00:19:13,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:19:13,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998196683] [2024-11-24 00:19:13,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:13,090 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 00:19:13,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:19:13,092 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:19:13,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (41)] Waiting until timeout for monitored process [2024-11-24 00:19:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:13,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:19:13,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:19:13,771 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 33 treesize of output 15 [2024-11-24 00:19:13,811 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-24 00:19:13,811 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:19:13,977 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:19:13,977 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:19:13,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998196683] [2024-11-24 00:19:13,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [998196683] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:19:13,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:19:13,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-24 00:19:13,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519066527] [2024-11-24 00:19:13,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:13,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:19:13,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:19:13,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:19:13,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:19:13,979 INFO L87 Difference]: Start difference. First operand 832 states and 947 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:19:14,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:14,276 INFO L93 Difference]: Finished difference Result 1508 states and 1712 transitions. [2024-11-24 00:19:14,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:19:14,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-11-24 00:19:14,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:14,279 INFO L225 Difference]: With dead ends: 1508 [2024-11-24 00:19:14,279 INFO L226 Difference]: Without dead ends: 692 [2024-11-24 00:19:14,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:19:14,280 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 75 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:14,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 333 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:19:14,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-11-24 00:19:14,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 658. [2024-11-24 00:19:14,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 553 states have (on average 1.0849909584086799) internal successors, (600), 563 states have internal predecessors, (600), 71 states have call successors, (71), 33 states have call predecessors, (71), 33 states have return successors, (71), 61 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-24 00:19:14,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 742 transitions. [2024-11-24 00:19:14,394 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 742 transitions. Word has length 111 [2024-11-24 00:19:14,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:14,394 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 742 transitions. [2024-11-24 00:19:14,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:19:14,395 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 742 transitions. [2024-11-24 00:19:14,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-24 00:19:14,396 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:14,396 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:19:14,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (41)] Forceful destruction successful, exit code 0 [2024-11-24 00:19:14,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:19:14,600 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:14,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:14,600 INFO L85 PathProgramCache]: Analyzing trace with hash 497158722, now seen corresponding path program 1 times [2024-11-24 00:19:14,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:19:14,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1237681007] [2024-11-24 00:19:14,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:14,601 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 00:19:14,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:19:14,603 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:19:14,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (42)] Waiting until timeout for monitored process [2024-11-24 00:19:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:14,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 00:19:14,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:19:15,444 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 21 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-24 00:19:15,444 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:19:15,732 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:19:15,732 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:19:15,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1237681007] [2024-11-24 00:19:15,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1237681007] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:19:15,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:19:15,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-24 00:19:15,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804131293] [2024-11-24 00:19:15,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:15,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:19:15,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:19:15,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:19:15,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:19:15,734 INFO L87 Difference]: Start difference. First operand 658 states and 742 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:19:16,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:16,095 INFO L93 Difference]: Finished difference Result 1316 states and 1478 transitions. [2024-11-24 00:19:16,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:19:16,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-11-24 00:19:16,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:16,097 INFO L225 Difference]: With dead ends: 1316 [2024-11-24 00:19:16,097 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 00:19:16,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:19:16,099 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 47 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:16,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 318 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:19:16,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 00:19:16,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 00:19:16,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:19:16,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 00:19:16,101 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2024-11-24 00:19:16,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:16,101 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:19:16,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:19:16,101 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 00:19:16,102 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 00:19:16,105 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:19:16,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 (42)] Ended with exit code 0 [2024-11-24 00:19:16,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de76f9f-2e4d-4c92-a96f-e0351d77934e/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 00:19:16,308 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:19:16,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 00:19:46,430 WARN L286 SmtUtils]: Spent 11.85s on a formula simplification. DAG size of input: 246 DAG size of output: 329 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:20:02,249 WARN L286 SmtUtils]: Spent 6.67s on a formula simplification. DAG size of input: 240 DAG size of output: 329 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:20:13,850 WARN L286 SmtUtils]: Spent 11.60s on a formula simplification. DAG size of input: 246 DAG size of output: 329 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:20:24,859 WARN L286 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 240 DAG size of output: 329 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:21:27,137 WARN L286 SmtUtils]: Spent 57.17s on a formula simplification. DAG size of input: 369 DAG size of output: 542 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:22:33,333 WARN L286 SmtUtils]: Spent 1.09m on a formula simplification. DAG size of input: 359 DAG size of output: 149 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-24 00:22:57,829 WARN L286 SmtUtils]: Spent 24.49s on a formula simplification. DAG size of input: 87 DAG size of output: 51 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-24 00:23:21,384 WARN L286 SmtUtils]: Spent 23.55s on a formula simplification. DAG size of input: 102 DAG size of output: 51 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-24 00:23:45,813 WARN L286 SmtUtils]: Spent 24.43s on a formula simplification. DAG size of input: 87 DAG size of output: 51 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-24 00:27:49,453 WARN L286 SmtUtils]: Spent 4.06m on a formula simplification. DAG size of input: 1428 DAG size of output: 74 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-24 00:28:13,577 WARN L286 SmtUtils]: Spent 24.12s on a formula simplification. DAG size of input: 102 DAG size of output: 51 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-24 00:29:21,315 WARN L286 SmtUtils]: Spent 1.13m on a formula simplification. DAG size of input: 359 DAG size of output: 149 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-24 00:30:34,414 WARN L286 SmtUtils]: Spent 1.22m on a formula simplification. DAG size of input: 258 DAG size of output: 132 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter)