./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-54.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_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-54.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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_fdc9ffe0-e311-419f-bbde-215075921ca8/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 2f657570a1e1457f1f304b0d552f8742bb723e9b2810b7fa1033cb000332d16c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:25:05,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:25:05,221 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:25:05,226 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:25:05,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:25:05,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:25:05,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:25:05,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:25:05,251 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:25:05,251 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:25:05,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:25:05,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:25:05,252 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:25:05,252 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:25:05,252 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:25:05,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:25:05,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:25:05,253 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:25:05,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:25:05,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:25:05,253 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:25:05,253 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:25:05,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:25:05,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:25:05,254 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:25:05,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:25:05,254 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:25:05,254 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:25:05,254 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:25:05,255 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:25:05,255 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:25:05,255 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:25:05,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:25:05,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:25:05,255 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:25:05,255 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:25:05,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:25:05,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:25:05,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:25:05,256 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:25:05,256 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:25:05,256 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:25:05,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:25:05,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:25:05,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:25:05,257 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:25:05,257 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:25:05,257 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:25:05,257 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_fdc9ffe0-e311-419f-bbde-215075921ca8/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 -> 2f657570a1e1457f1f304b0d552f8742bb723e9b2810b7fa1033cb000332d16c [2024-11-23 23:25:05,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:25:05,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:25:05,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:25:05,541 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:25:05,542 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:25:05,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-54.i [2024-11-23 23:25:08,767 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/data/663004d11/4ca194d4af784197829e42f3947e6f43/FLAG02cd5d76f [2024-11-23 23:25:09,085 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:25:09,086 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-54.i [2024-11-23 23:25:09,096 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/data/663004d11/4ca194d4af784197829e42f3947e6f43/FLAG02cd5d76f [2024-11-23 23:25:09,116 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/data/663004d11/4ca194d4af784197829e42f3947e6f43 [2024-11-23 23:25:09,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:25:09,119 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:25:09,122 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:25:09,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:25:09,128 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:25:09,129 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:25:09" (1/1) ... [2024-11-23 23:25:09,130 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e56669e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:09, skipping insertion in model container [2024-11-23 23:25:09,130 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:25:09" (1/1) ... [2024-11-23 23:25:09,157 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:25:09,318 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_fdc9ffe0-e311-419f-bbde-215075921ca8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-54.i[916,929] [2024-11-23 23:25:09,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:25:09,404 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:25:09,415 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_fdc9ffe0-e311-419f-bbde-215075921ca8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-54.i[916,929] [2024-11-23 23:25:09,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:25:09,481 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:25:09,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:09 WrapperNode [2024-11-23 23:25:09,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:25:09,485 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:25:09,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:25:09,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:25:09,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:09" (1/1) ... [2024-11-23 23:25:09,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:09" (1/1) ... [2024-11-23 23:25:09,584 INFO L138 Inliner]: procedures = 29, calls = 143, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 469 [2024-11-23 23:25:09,585 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:25:09,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:25:09,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:25:09,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:25:09,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:09" (1/1) ... [2024-11-23 23:25:09,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:09" (1/1) ... [2024-11-23 23:25:09,614 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:09" (1/1) ... [2024-11-23 23:25:09,646 INFO L175 MemorySlicer]: Split 115 memory accesses to 6 slices as follows [2, 33, 41, 7, 13, 19]. 36 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 3, 1, 2, 2]. The 16 writes are split as follows [0, 7, 4, 1, 2, 2]. [2024-11-23 23:25:09,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:09" (1/1) ... [2024-11-23 23:25:09,647 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:09" (1/1) ... [2024-11-23 23:25:09,667 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:09" (1/1) ... [2024-11-23 23:25:09,668 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:09" (1/1) ... [2024-11-23 23:25:09,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:09" (1/1) ... [2024-11-23 23:25:09,675 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:09" (1/1) ... [2024-11-23 23:25:09,677 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:09" (1/1) ... [2024-11-23 23:25:09,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:25:09,683 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:25:09,683 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:25:09,683 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:25:09,684 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:09" (1/1) ... [2024-11-23 23:25:09,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:25:09,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:25:09,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:25:09,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:25:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:25:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 23:25:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 23:25:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 23:25:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 23:25:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 23:25:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 23:25:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-23 23:25:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-23 23:25:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-23 23:25:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-23 23:25:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-23 23:25:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-23 23:25:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-23 23:25:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-23 23:25:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-23 23:25:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-23 23:25:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-23 23:25:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-23 23:25:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 23:25:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 23:25:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 23:25:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 23:25:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 23:25:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 23:25:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-23 23:25:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-23 23:25:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-23 23:25:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-23 23:25:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-23 23:25:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-23 23:25:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:25:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:25:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:25:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:25:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:25:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:25:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 23:25:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 23:25:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:25:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:25:09,950 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:25:09,953 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:25:10,506 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2024-11-23 23:25:10,506 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:25:10,523 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:25:10,525 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:25:10,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:25:10 BoogieIcfgContainer [2024-11-23 23:25:10,526 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:25:10,528 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:25:10,530 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:25:10,537 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:25:10,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:25:09" (1/3) ... [2024-11-23 23:25:10,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1fa09b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:25:10, skipping insertion in model container [2024-11-23 23:25:10,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:09" (2/3) ... [2024-11-23 23:25:10,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1fa09b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:25:10, skipping insertion in model container [2024-11-23 23:25:10,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:25:10" (3/3) ... [2024-11-23 23:25:10,541 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-54.i [2024-11-23 23:25:10,576 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:25:10,580 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-54.i that has 2 procedures, 110 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:25:10,661 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:25:10,680 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;@3b45b05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:25:10,680 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:25:10,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 95 states have (on average 1.4526315789473685) internal successors, (138), 96 states have internal predecessors, (138), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:25:10,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:25:10,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:10,698 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:10,699 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:10,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:10,704 INFO L85 PathProgramCache]: Analyzing trace with hash -772808128, now seen corresponding path program 1 times [2024-11-23 23:25:10,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:10,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757763640] [2024-11-23 23:25:10,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:10,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:11,055 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-23 23:25:11,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:11,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757763640] [2024-11-23 23:25:11,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757763640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:25:11,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582803323] [2024-11-23 23:25:11,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:11,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:25:11,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:25:11,059 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:25:11,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:25:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:11,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:25:11,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:11,389 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-23 23:25:11,391 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:25:11,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582803323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:11,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:25:11,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:25:11,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699068506] [2024-11-23 23:25:11,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:11,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:25:11,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:11,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:25:11,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:25:11,429 INFO L87 Difference]: Start difference. First operand has 110 states, 95 states have (on average 1.4526315789473685) internal successors, (138), 96 states have internal predecessors, (138), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:25:11,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:11,470 INFO L93 Difference]: Finished difference Result 213 states and 330 transitions. [2024-11-23 23:25:11,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:25:11,472 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2024-11-23 23:25:11,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:11,482 INFO L225 Difference]: With dead ends: 213 [2024-11-23 23:25:11,482 INFO L226 Difference]: Without dead ends: 106 [2024-11-23 23:25:11,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:25:11,491 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:11,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:25:11,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-23 23:25:11,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-23 23:25:11,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 92 states have (on average 1.423913043478261) internal successors, (131), 92 states have internal predecessors, (131), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:25:11,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 155 transitions. [2024-11-23 23:25:11,538 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 155 transitions. Word has length 105 [2024-11-23 23:25:11,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:11,539 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 155 transitions. [2024-11-23 23:25:11,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:25:11,541 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 155 transitions. [2024-11-23 23:25:11,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:25:11,546 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:11,546 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:11,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:25:11,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 23:25:11,750 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:11,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:11,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1959980268, now seen corresponding path program 1 times [2024-11-23 23:25:11,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:11,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178800413] [2024-11-23 23:25:11,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:11,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:12,393 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 23:25:12,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:12,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178800413] [2024-11-23 23:25:12,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178800413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:25:12,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889088171] [2024-11-23 23:25:12,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:12,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:25:12,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:25:12,398 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:25:12,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:25:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:12,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:25:12,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:12,757 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:12,757 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:25:12,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889088171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:12,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:25:12,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-23 23:25:12,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274482276] [2024-11-23 23:25:12,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:12,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:25:12,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:12,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:25:12,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:25:12,762 INFO L87 Difference]: Start difference. First operand 106 states and 155 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:12,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:12,824 INFO L93 Difference]: Finished difference Result 212 states and 311 transitions. [2024-11-23 23:25:12,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:25:12,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2024-11-23 23:25:12,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:12,831 INFO L225 Difference]: With dead ends: 212 [2024-11-23 23:25:12,831 INFO L226 Difference]: Without dead ends: 109 [2024-11-23 23:25:12,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:25:12,833 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 1 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:12,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 445 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:25:12,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-23 23:25:12,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2024-11-23 23:25:12,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 94 states have (on average 1.4148936170212767) internal successors, (133), 94 states have internal predecessors, (133), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:25:12,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 157 transitions. [2024-11-23 23:25:12,850 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 157 transitions. Word has length 105 [2024-11-23 23:25:12,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:12,855 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 157 transitions. [2024-11-23 23:25:12,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:12,856 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 157 transitions. [2024-11-23 23:25:12,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:25:12,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:12,858 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:12,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 23:25:13,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:25:13,059 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:13,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:13,060 INFO L85 PathProgramCache]: Analyzing trace with hash -559979666, now seen corresponding path program 1 times [2024-11-23 23:25:13,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:13,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541033652] [2024-11-23 23:25:13,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:13,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:13,356 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 23:25:13,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:13,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541033652] [2024-11-23 23:25:13,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541033652] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:25:13,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626995939] [2024-11-23 23:25:13,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:13,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:25:13,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:25:13,359 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:25:13,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:25:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:13,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:25:13,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:13,646 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:13,646 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:25:13,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626995939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:13,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:25:13,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-23 23:25:13,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556525663] [2024-11-23 23:25:13,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:13,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:25:13,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:13,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:25:13,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:25:13,648 INFO L87 Difference]: Start difference. First operand 108 states and 157 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:13,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:13,702 INFO L93 Difference]: Finished difference Result 216 states and 315 transitions. [2024-11-23 23:25:13,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:25:13,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2024-11-23 23:25:13,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:13,704 INFO L225 Difference]: With dead ends: 216 [2024-11-23 23:25:13,705 INFO L226 Difference]: Without dead ends: 111 [2024-11-23 23:25:13,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:25:13,710 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 1 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:13,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 448 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:25:13,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-23 23:25:13,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-11-23 23:25:13,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 96 states have (on average 1.40625) internal successors, (135), 96 states have internal predecessors, (135), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:25:13,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 159 transitions. [2024-11-23 23:25:13,720 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 159 transitions. Word has length 105 [2024-11-23 23:25:13,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:13,721 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 159 transitions. [2024-11-23 23:25:13,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:13,721 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 159 transitions. [2024-11-23 23:25:13,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:25:13,723 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:13,723 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:13,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:25:13,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:25:13,927 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:13,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:13,928 INFO L85 PathProgramCache]: Analyzing trace with hash -558132624, now seen corresponding path program 1 times [2024-11-23 23:25:13,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:13,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784474184] [2024-11-23 23:25:13,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:13,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:14,194 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 23:25:14,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:14,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784474184] [2024-11-23 23:25:14,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784474184] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:25:14,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280073692] [2024-11-23 23:25:14,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:14,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:25:14,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:25:14,198 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:25:14,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:25:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:14,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:25:14,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:14,455 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:14,455 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:25:14,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280073692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:14,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:25:14,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-23 23:25:14,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064885779] [2024-11-23 23:25:14,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:14,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:25:14,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:14,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:25:14,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:25:14,461 INFO L87 Difference]: Start difference. First operand 110 states and 159 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:14,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:14,500 INFO L93 Difference]: Finished difference Result 219 states and 318 transitions. [2024-11-23 23:25:14,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:25:14,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2024-11-23 23:25:14,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:14,506 INFO L225 Difference]: With dead ends: 219 [2024-11-23 23:25:14,506 INFO L226 Difference]: Without dead ends: 112 [2024-11-23 23:25:14,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:25:14,507 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:14,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 448 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:25:14,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-23 23:25:14,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-23 23:25:14,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 98 states have (on average 1.3979591836734695) internal successors, (137), 98 states have internal predecessors, (137), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:25:14,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 161 transitions. [2024-11-23 23:25:14,527 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 161 transitions. Word has length 105 [2024-11-23 23:25:14,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:14,527 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 161 transitions. [2024-11-23 23:25:14,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:14,527 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 161 transitions. [2024-11-23 23:25:14,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 23:25:14,533 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:14,533 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:14,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 23:25:14,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-23 23:25:14,734 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:14,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:14,735 INFO L85 PathProgramCache]: Analyzing trace with hash 813028843, now seen corresponding path program 1 times [2024-11-23 23:25:14,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:14,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962077645] [2024-11-23 23:25:14,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:14,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:15,104 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:15,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:15,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962077645] [2024-11-23 23:25:15,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962077645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:15,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:15,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:25:15,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249135575] [2024-11-23 23:25:15,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:15,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:25:15,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:15,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:25:15,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:25:15,108 INFO L87 Difference]: Start difference. First operand 112 states and 161 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:15,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:15,277 INFO L93 Difference]: Finished difference Result 323 states and 466 transitions. [2024-11-23 23:25:15,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:25:15,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2024-11-23 23:25:15,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:15,281 INFO L225 Difference]: With dead ends: 323 [2024-11-23 23:25:15,282 INFO L226 Difference]: Without dead ends: 214 [2024-11-23 23:25:15,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:25:15,284 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 136 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:15,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 550 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:25:15,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-23 23:25:15,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 133. [2024-11-23 23:25:15,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 119 states have (on average 1.4285714285714286) internal successors, (170), 119 states have internal predecessors, (170), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:25:15,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 194 transitions. [2024-11-23 23:25:15,295 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 194 transitions. Word has length 107 [2024-11-23 23:25:15,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:15,295 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 194 transitions. [2024-11-23 23:25:15,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:15,295 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 194 transitions. [2024-11-23 23:25:15,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-23 23:25:15,297 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:15,297 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:15,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:25:15,297 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:15,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:15,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1898838398, now seen corresponding path program 1 times [2024-11-23 23:25:15,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:15,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710629849] [2024-11-23 23:25:15,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:15,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:15,657 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:15,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:15,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710629849] [2024-11-23 23:25:15,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710629849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:15,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:15,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:25:15,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25924906] [2024-11-23 23:25:15,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:15,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:25:15,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:15,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:25:15,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:25:15,660 INFO L87 Difference]: Start difference. First operand 133 states and 194 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:15,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:15,753 INFO L93 Difference]: Finished difference Result 368 states and 536 transitions. [2024-11-23 23:25:15,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:25:15,754 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), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-11-23 23:25:15,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:15,756 INFO L225 Difference]: With dead ends: 368 [2024-11-23 23:25:15,756 INFO L226 Difference]: Without dead ends: 238 [2024-11-23 23:25:15,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:25:15,758 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 109 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:15,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 421 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:25:15,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-23 23:25:15,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 234. [2024-11-23 23:25:15,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 207 states have (on average 1.4106280193236715) internal successors, (292), 207 states have internal predecessors, (292), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-23 23:25:15,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 340 transitions. [2024-11-23 23:25:15,794 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 340 transitions. Word has length 108 [2024-11-23 23:25:15,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:15,795 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 340 transitions. [2024-11-23 23:25:15,795 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), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:15,796 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 340 transitions. [2024-11-23 23:25:15,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-23 23:25:15,798 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:15,798 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:15,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:25:15,799 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:15,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:15,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1081189948, now seen corresponding path program 1 times [2024-11-23 23:25:15,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:15,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531655105] [2024-11-23 23:25:15,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:15,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:16,254 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:16,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:16,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531655105] [2024-11-23 23:25:16,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531655105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:16,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:16,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:25:16,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733806805] [2024-11-23 23:25:16,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:16,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:25:16,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:16,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:25:16,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:25:16,257 INFO L87 Difference]: Start difference. First operand 234 states and 340 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:16,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:16,441 INFO L93 Difference]: Finished difference Result 469 states and 681 transitions. [2024-11-23 23:25:16,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:25:16,443 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-11-23 23:25:16,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:16,444 INFO L225 Difference]: With dead ends: 469 [2024-11-23 23:25:16,445 INFO L226 Difference]: Without dead ends: 238 [2024-11-23 23:25:16,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:25:16,446 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 101 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:16,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 529 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:25:16,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-23 23:25:16,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 234. [2024-11-23 23:25:16,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 207 states have (on average 1.4057971014492754) internal successors, (291), 207 states have internal predecessors, (291), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-23 23:25:16,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 339 transitions. [2024-11-23 23:25:16,460 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 339 transitions. Word has length 108 [2024-11-23 23:25:16,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:16,460 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 339 transitions. [2024-11-23 23:25:16,461 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:16,461 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 339 transitions. [2024-11-23 23:25:16,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-23 23:25:16,462 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:16,462 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:16,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:25:16,463 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:16,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:16,463 INFO L85 PathProgramCache]: Analyzing trace with hash 494383934, now seen corresponding path program 1 times [2024-11-23 23:25:16,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:16,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214084513] [2024-11-23 23:25:16,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:16,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:17,941 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:17,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:17,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214084513] [2024-11-23 23:25:17,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214084513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:17,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:17,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:25:17,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481680447] [2024-11-23 23:25:17,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:17,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:25:17,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:17,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:25:17,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:25:17,944 INFO L87 Difference]: Start difference. First operand 234 states and 339 transitions. Second operand has 8 states, 6 states have (on average 8.5) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 23:25:18,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:18,199 INFO L93 Difference]: Finished difference Result 579 states and 826 transitions. [2024-11-23 23:25:18,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:25:18,201 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.5) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2024-11-23 23:25:18,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:18,203 INFO L225 Difference]: With dead ends: 579 [2024-11-23 23:25:18,204 INFO L226 Difference]: Without dead ends: 348 [2024-11-23 23:25:18,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:25:18,205 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 67 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:18,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 912 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:25:18,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-23 23:25:18,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 344. [2024-11-23 23:25:18,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 311 states have (on average 1.3794212218649518) internal successors, (429), 313 states have internal predecessors, (429), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-23 23:25:18,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 485 transitions. [2024-11-23 23:25:18,241 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 485 transitions. Word has length 108 [2024-11-23 23:25:18,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:18,242 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 485 transitions. [2024-11-23 23:25:18,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.5) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 23:25:18,242 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 485 transitions. [2024-11-23 23:25:18,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:25:18,243 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:18,244 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:18,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:25:18,244 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:18,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:18,244 INFO L85 PathProgramCache]: Analyzing trace with hash 9422404, now seen corresponding path program 1 times [2024-11-23 23:25:18,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:18,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150945374] [2024-11-23 23:25:18,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:18,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:18,843 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:18,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:18,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150945374] [2024-11-23 23:25:18,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150945374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:18,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:18,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:25:18,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922770923] [2024-11-23 23:25:18,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:18,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:25:18,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:18,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:25:18,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:25:18,846 INFO L87 Difference]: Start difference. First operand 344 states and 485 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:25:19,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:19,104 INFO L93 Difference]: Finished difference Result 730 states and 1031 transitions. [2024-11-23 23:25:19,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:25:19,105 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-23 23:25:19,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:19,111 INFO L225 Difference]: With dead ends: 730 [2024-11-23 23:25:19,111 INFO L226 Difference]: Without dead ends: 542 [2024-11-23 23:25:19,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:25:19,113 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 133 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:19,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 910 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:25:19,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-23 23:25:19,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 538. [2024-11-23 23:25:19,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 479 states have (on average 1.37160751565762) internal successors, (657), 484 states have internal predecessors, (657), 50 states have call successors, (50), 8 states have call predecessors, (50), 8 states have return successors, (50), 45 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-23 23:25:19,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 757 transitions. [2024-11-23 23:25:19,175 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 757 transitions. Word has length 109 [2024-11-23 23:25:19,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:19,175 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 757 transitions. [2024-11-23 23:25:19,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:25:19,176 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 757 transitions. [2024-11-23 23:25:19,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:25:19,177 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:19,177 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:19,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:25:19,180 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:19,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:19,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1001694846, now seen corresponding path program 1 times [2024-11-23 23:25:19,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:19,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896150209] [2024-11-23 23:25:19,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:19,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:19,923 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:19,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:19,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896150209] [2024-11-23 23:25:19,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896150209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:19,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:19,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:25:19,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646271212] [2024-11-23 23:25:19,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:19,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:25:19,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:19,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:25:19,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:25:19,926 INFO L87 Difference]: Start difference. First operand 538 states and 757 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:20,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:20,281 INFO L93 Difference]: Finished difference Result 1039 states and 1466 transitions. [2024-11-23 23:25:20,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:25:20,281 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-23 23:25:20,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:20,286 INFO L225 Difference]: With dead ends: 1039 [2024-11-23 23:25:20,286 INFO L226 Difference]: Without dead ends: 696 [2024-11-23 23:25:20,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:25:20,289 INFO L435 NwaCegarLoop]: 281 mSDtfsCounter, 141 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:20,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 2026 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:25:20,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-23 23:25:20,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 687. [2024-11-23 23:25:20,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 612 states have (on average 1.3676470588235294) internal successors, (837), 618 states have internal predecessors, (837), 64 states have call successors, (64), 10 states have call predecessors, (64), 10 states have return successors, (64), 58 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:25:20,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 965 transitions. [2024-11-23 23:25:20,361 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 965 transitions. Word has length 109 [2024-11-23 23:25:20,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:20,361 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 965 transitions. [2024-11-23 23:25:20,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:20,362 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 965 transitions. [2024-11-23 23:25:20,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:25:20,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:20,366 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:20,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:25:20,367 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:20,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:20,367 INFO L85 PathProgramCache]: Analyzing trace with hash 143435910, now seen corresponding path program 1 times [2024-11-23 23:25:20,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:20,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589335855] [2024-11-23 23:25:20,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:20,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:21,339 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:21,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:21,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589335855] [2024-11-23 23:25:21,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589335855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:21,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:21,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 23:25:21,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145207015] [2024-11-23 23:25:21,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:21,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:25:21,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:21,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:25:21,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:25:21,341 INFO L87 Difference]: Start difference. First operand 687 states and 965 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:25:22,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:22,185 INFO L93 Difference]: Finished difference Result 1308 states and 1841 transitions. [2024-11-23 23:25:22,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 23:25:22,186 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-23 23:25:22,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:22,190 INFO L225 Difference]: With dead ends: 1308 [2024-11-23 23:25:22,191 INFO L226 Difference]: Without dead ends: 816 [2024-11-23 23:25:22,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:25:22,193 INFO L435 NwaCegarLoop]: 354 mSDtfsCounter, 223 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:22,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 2879 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:25:22,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-11-23 23:25:22,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 536. [2024-11-23 23:25:22,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 477 states have (on average 1.3626834381551363) internal successors, (650), 482 states have internal predecessors, (650), 50 states have call successors, (50), 8 states have call predecessors, (50), 8 states have return successors, (50), 45 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-23 23:25:22,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 750 transitions. [2024-11-23 23:25:22,240 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 750 transitions. Word has length 109 [2024-11-23 23:25:22,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:22,241 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 750 transitions. [2024-11-23 23:25:22,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:25:22,241 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 750 transitions. [2024-11-23 23:25:22,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:25:22,243 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:22,243 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:22,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:25:22,243 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:22,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:22,244 INFO L85 PathProgramCache]: Analyzing trace with hash -867681340, now seen corresponding path program 1 times [2024-11-23 23:25:22,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:22,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859398019] [2024-11-23 23:25:22,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:22,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:22,685 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:22,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:22,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859398019] [2024-11-23 23:25:22,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859398019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:22,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:22,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:25:22,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817452325] [2024-11-23 23:25:22,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:22,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:25:22,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:22,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:25:22,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:25:22,688 INFO L87 Difference]: Start difference. First operand 536 states and 750 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:25:22,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:22,903 INFO L93 Difference]: Finished difference Result 997 states and 1396 transitions. [2024-11-23 23:25:22,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:25:22,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-23 23:25:22,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:22,908 INFO L225 Difference]: With dead ends: 997 [2024-11-23 23:25:22,908 INFO L226 Difference]: Without dead ends: 656 [2024-11-23 23:25:22,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:25:22,911 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 129 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:22,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1060 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:25:22,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2024-11-23 23:25:22,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 528. [2024-11-23 23:25:22,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 469 states have (on average 1.3603411513859276) internal successors, (638), 474 states have internal predecessors, (638), 50 states have call successors, (50), 8 states have call predecessors, (50), 8 states have return successors, (50), 45 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-23 23:25:22,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 738 transitions. [2024-11-23 23:25:22,966 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 738 transitions. Word has length 109 [2024-11-23 23:25:22,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:22,968 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 738 transitions. [2024-11-23 23:25:22,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:25:22,969 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 738 transitions. [2024-11-23 23:25:22,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:25:22,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:22,970 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:22,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:25:22,971 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:22,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:22,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1465883152, now seen corresponding path program 1 times [2024-11-23 23:25:22,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:22,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282350981] [2024-11-23 23:25:22,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:22,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:23,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:23,355 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:23,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:23,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282350981] [2024-11-23 23:25:23,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282350981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:23,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:23,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:25:23,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67735240] [2024-11-23 23:25:23,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:23,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:25:23,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:23,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:25:23,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:25:23,357 INFO L87 Difference]: Start difference. First operand 528 states and 738 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:23,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:23,467 INFO L93 Difference]: Finished difference Result 560 states and 772 transitions. [2024-11-23 23:25:23,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:25:23,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-23 23:25:23,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:23,471 INFO L225 Difference]: With dead ends: 560 [2024-11-23 23:25:23,471 INFO L226 Difference]: Without dead ends: 558 [2024-11-23 23:25:23,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:25:23,472 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 119 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:23,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 817 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:25:23,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-23 23:25:23,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2024-11-23 23:25:23,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 496 states have (on average 1.340725806451613) internal successors, (665), 501 states have internal predecessors, (665), 50 states have call successors, (50), 11 states have call predecessors, (50), 11 states have return successors, (50), 45 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-23 23:25:23,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 765 transitions. [2024-11-23 23:25:23,541 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 765 transitions. Word has length 110 [2024-11-23 23:25:23,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:23,542 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 765 transitions. [2024-11-23 23:25:23,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:23,542 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 765 transitions. [2024-11-23 23:25:23,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:25:23,544 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:23,544 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:23,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:25:23,544 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:23,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:23,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1467730194, now seen corresponding path program 1 times [2024-11-23 23:25:23,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:23,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269630911] [2024-11-23 23:25:23,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:23,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:25:23,602 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:25:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:25:23,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 23:25:23,714 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 23:25:23,715 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:25:23,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:25:23,721 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:23,807 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:25:23,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:25:23 BoogieIcfgContainer [2024-11-23 23:25:23,810 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:25:23,811 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:25:23,811 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:25:23,811 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:25:23,812 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:25:10" (3/4) ... [2024-11-23 23:25:23,814 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 23:25:23,815 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:25:23,816 INFO L158 Benchmark]: Toolchain (without parser) took 14696.96ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 93.2MB in the beginning and 213.2MB in the end (delta: -120.0MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2024-11-23 23:25:23,816 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 117.4MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:25:23,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.77ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 78.2MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:25:23,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.68ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 74.8MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:25:23,817 INFO L158 Benchmark]: Boogie Preprocessor took 93.77ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 70.5MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:25:23,818 INFO L158 Benchmark]: RCFGBuilder took 843.27ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 39.6MB in the end (delta: 30.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 23:25:23,818 INFO L158 Benchmark]: TraceAbstraction took 13282.23ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 38.9MB in the beginning and 213.2MB in the end (delta: -174.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:25:23,818 INFO L158 Benchmark]: Witness Printer took 4.28ms. Allocated memory is still 285.2MB. Free memory was 213.2MB in the beginning and 213.2MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:25:23,820 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 117.4MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.77ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 78.2MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.68ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 74.8MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 93.77ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 70.5MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 843.27ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 39.6MB in the end (delta: 30.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 13282.23ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 38.9MB in the beginning and 213.2MB in the end (delta: -174.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.28ms. Allocated memory is still 285.2MB. Free memory was 213.2MB in the beginning and 213.2MB in the end (delta: 37.2kB). 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 someBinaryFLOATComparisonOperation at line 95, overapproximation of someBinaryDOUBLEComparisonOperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 84, overapproximation of someBinaryDOUBLEComparisonOperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 84. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {0, 1}, {0, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {0, 1}, {0, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {0, 1}, {0, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {0, 1}, {0, 0} }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {0, 1}, {0, 0} }; [L25-L27] double double_Array_0[3] = { 5.5, 4.1, 9.75 }; [L25-L27] double double_Array_0[3] = { 5.5, 4.1, 9.75 }; [L25-L27] double double_Array_0[3] = { 5.5, 4.1, 9.75 }; [L25-L27] double double_Array_0[3] = { 5.5, 4.1, 9.75 }; [L28-L30] float float_Array_0[1] = { 9.8 }; [L28-L30] float float_Array_0[1] = { 9.8 }; [L31-L33] signed char signed_char_Array_0[2] = { 2, 25 }; [L31-L33] signed char signed_char_Array_0[2] = { 2, 25 }; [L31-L33] signed char signed_char_Array_0[2] = { 2, 25 }; [L34-L36] unsigned char unsigned_char_Array_0[2] = { 10, 16 }; [L34-L36] unsigned char unsigned_char_Array_0[2] = { 10, 16 }; [L34-L36] unsigned char unsigned_char_Array_0[2] = { 10, 16 }; VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=0, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L99] isInitial = 1 [L100] FCALL initially() [L102] FCALL updateLastVariables() [L103] CALL updateVariables() [L72] BOOL_unsigned_char_Array_0[0][0] = __VERIFIER_nondet_uchar() [L73] EXPR BOOL_unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L73] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L73] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L74] EXPR BOOL_unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0][0] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0][0] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L75] BOOL_unsigned_char_Array_0[1][0] = __VERIFIER_nondet_uchar() [L76] EXPR BOOL_unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L76] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][0] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L76] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][0] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L77] EXPR BOOL_unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L77] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L77] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L78] BOOL_unsigned_char_Array_0[0][1] = __VERIFIER_nondet_uchar() [L79] EXPR BOOL_unsigned_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L79] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L79] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L80] EXPR BOOL_unsigned_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L80] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0][1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L80] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0][1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L81] double_Array_0[0] = __VERIFIER_nondet_double() [L82] EXPR double_Array_0[0] [L82] EXPR double_Array_0[0] >= -922337.2036854765600e+13F && double_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L82] EXPR double_Array_0[0] >= -922337.2036854765600e+13F && double_Array_0[0] <= -1.0e-20F [L82] EXPR double_Array_0[0] [L82] EXPR double_Array_0[0] >= -922337.2036854765600e+13F && double_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L82] EXPR (double_Array_0[0] >= -922337.2036854765600e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L82] EXPR (double_Array_0[0] >= -922337.2036854765600e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L82] CALL assume_abort_if_not((double_Array_0[0] >= -922337.2036854765600e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L82] RET assume_abort_if_not((double_Array_0[0] >= -922337.2036854765600e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L83] double_Array_0[1] = __VERIFIER_nondet_double() [L84] EXPR double_Array_0[1] [L84] 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}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L84] EXPR double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F [L84] EXPR double_Array_0[1] [L84] 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}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L84] 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}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L84] 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}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L84] 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}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L84] 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}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L85] signed_char_Array_0[0] = __VERIFIER_nondet_char() [L86] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L86] CALL assume_abort_if_not(signed_char_Array_0[0] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L86] RET assume_abort_if_not(signed_char_Array_0[0] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L87] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L87] CALL assume_abort_if_not(signed_char_Array_0[0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L87] RET assume_abort_if_not(signed_char_Array_0[0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L88] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L89] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L89] 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}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L89] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L90] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L90] 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}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L90] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L103] RET updateVariables() [L104] CALL step() [L40] EXPR double_Array_0[0] [L40] float_Array_0[0] = double_Array_0[0] [L41] EXPR signed_char_Array_0[0] [L41] signed_char_Array_0[1] = signed_char_Array_0[0] [L42] signed long int stepLocal_0 = -4; [L43] EXPR signed_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L43] COND FALSE !(stepLocal_0 >= signed_char_Array_0[1]) [L46] EXPR unsigned_char_Array_0[0] [L46] unsigned char stepLocal_2 = unsigned_char_Array_0[0]; [L47] BOOL_unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L47] COND FALSE !(BOOL_unsigned_char_Array_0[0][0]) [L56] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L56] EXPR ((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1]) [L56] EXPR unsigned_char_Array_0[1] [L56] EXPR ((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1]) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, stepLocal_2=9, unsigned_char_Array_0={8:0}] [L56] signed long int stepLocal_1 = (((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1])); [L57] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L57] COND FALSE !((8 * unsigned_char_Array_0[1]) == stepLocal_1) [L68] EXPR BOOL_unsigned_char_Array_0[1][0] [L68] BOOL_unsigned_char_Array_0[1][1] = BOOL_unsigned_char_Array_0[1][0] [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR signed_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] EXPR (-4 >= signed_char_Array_0[1]) ? (unsigned_char_Array_0[1] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (((((1) < 0 ) ? -(1) : (1))))) ? (unsigned_char_Array_0[0]) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1 [L95] EXPR (-4 >= signed_char_Array_0[1]) ? (unsigned_char_Array_0[1] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (((((1) < 0 ) ? -(1) : (1))))) ? (unsigned_char_Array_0[0]) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] EXPR ((-4 >= signed_char_Array_0[1]) ? (unsigned_char_Array_0[1] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (((((1) < 0 ) ? -(1) : (1))))) ? (unsigned_char_Array_0[0]) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1) && (((8 * unsigned_char_Array_0[1]) == ((((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) ((double_Array_0[2] < float_Array_0[0]) && BOOL_unsigned_char_Array_0[0][0]))) : ((float_Array_0[0] >= ((((double_Array_0[2]) < 0 ) ? -(double_Array_0[2]) : (double_Array_0[2])))) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] EXPR ((-4 >= signed_char_Array_0[1]) ? (unsigned_char_Array_0[1] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (((((1) < 0 ) ? -(1) : (1))))) ? (unsigned_char_Array_0[0]) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1) && (((8 * unsigned_char_Array_0[1]) == ((((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) ((double_Array_0[2] < float_Array_0[0]) && BOOL_unsigned_char_Array_0[0][0]))) : ((float_Array_0[0] >= ((((double_Array_0[2]) < 0 ) ? -(double_Array_0[2]) : (double_Array_0[2])))) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][0]))) [L95] EXPR unsigned_char_Array_0[1] [L95] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] EXPR ((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1]) [L95] EXPR unsigned_char_Array_0[1] [L95] EXPR ((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1]) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] EXPR ((8 * unsigned_char_Array_0[1]) == ((((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) ((double_Array_0[2] < float_Array_0[0]) && BOOL_unsigned_char_Array_0[0][0]))) : ((float_Array_0[0] >= ((((double_Array_0[2]) < 0 ) ? -(double_Array_0[2]) : (double_Array_0[2])))) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][0])) [L95] EXPR BOOL_unsigned_char_Array_0[1][1] [L95] EXPR BOOL_unsigned_char_Array_0[1][0] [L95] EXPR ((8 * unsigned_char_Array_0[1]) == ((((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) ((double_Array_0[2] < float_Array_0[0]) && BOOL_unsigned_char_Array_0[0][0]))) : ((float_Array_0[0] >= ((((double_Array_0[2]) < 0 ) ? -(double_Array_0[2]) : (double_Array_0[2])))) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][0])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] EXPR ((-4 >= signed_char_Array_0[1]) ? (unsigned_char_Array_0[1] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (((((1) < 0 ) ? -(1) : (1))))) ? (unsigned_char_Array_0[0]) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1) && (((8 * unsigned_char_Array_0[1]) == ((((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) ((double_Array_0[2] < float_Array_0[0]) && BOOL_unsigned_char_Array_0[0][0]))) : ((float_Array_0[0] >= ((((double_Array_0[2]) < 0 ) ? -(double_Array_0[2]) : (double_Array_0[2])))) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] EXPR (((-4 >= signed_char_Array_0[1]) ? (unsigned_char_Array_0[1] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (((((1) < 0 ) ? -(1) : (1))))) ? (unsigned_char_Array_0[0]) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1) && (((8 * unsigned_char_Array_0[1]) == ((((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) ((double_Array_0[2] < float_Array_0[0]) && BOOL_unsigned_char_Array_0[0][0]))) : ((float_Array_0[0] >= ((((double_Array_0[2]) < 0 ) ? -(double_Array_0[2]) : (double_Array_0[2])))) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][0])))) && (BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_char_Array_0[0] > signed_char_Array_0[1]) ? (double_Array_0[2] == ((double) ((((((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) > (double_Array_0[1])) ? (((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) : (double_Array_0[1]))))) : (BOOL_unsigned_char_Array_0[1][0] ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1)) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] EXPR (((-4 >= signed_char_Array_0[1]) ? (unsigned_char_Array_0[1] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (((((1) < 0 ) ? -(1) : (1))))) ? (unsigned_char_Array_0[0]) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1) && (((8 * unsigned_char_Array_0[1]) == ((((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) ((double_Array_0[2] < float_Array_0[0]) && BOOL_unsigned_char_Array_0[0][0]))) : ((float_Array_0[0] >= ((((double_Array_0[2]) < 0 ) ? -(double_Array_0[2]) : (double_Array_0[2])))) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][0])))) && (BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_char_Array_0[0] > signed_char_Array_0[1]) ? (double_Array_0[2] == ((double) ((((((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) > (double_Array_0[1])) ? (((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) : (double_Array_0[1]))))) : (BOOL_unsigned_char_Array_0[1][0] ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1)) : 1) [L95] EXPR BOOL_unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] EXPR BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_char_Array_0[0] > signed_char_Array_0[1]) ? (double_Array_0[2] == ((double) ((((((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) > (double_Array_0[1])) ? (((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) : (double_Array_0[1]))))) : (BOOL_unsigned_char_Array_0[1][0] ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1)) : 1 [L95] EXPR BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_char_Array_0[0] > signed_char_Array_0[1]) ? (double_Array_0[2] == ((double) ((((((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) > (double_Array_0[1])) ? (((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) : (double_Array_0[1]))))) : (BOOL_unsigned_char_Array_0[1][0] ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1)) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] EXPR (((-4 >= signed_char_Array_0[1]) ? (unsigned_char_Array_0[1] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (((((1) < 0 ) ? -(1) : (1))))) ? (unsigned_char_Array_0[0]) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1) && (((8 * unsigned_char_Array_0[1]) == ((((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) ((double_Array_0[2] < float_Array_0[0]) && BOOL_unsigned_char_Array_0[0][0]))) : ((float_Array_0[0] >= ((((double_Array_0[2]) < 0 ) ? -(double_Array_0[2]) : (double_Array_0[2])))) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][0])))) && (BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_char_Array_0[0] > signed_char_Array_0[1]) ? (double_Array_0[2] == ((double) ((((((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) > (double_Array_0[1])) ? (((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) : (double_Array_0[1]))))) : (BOOL_unsigned_char_Array_0[1][0] ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1)) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] EXPR ((((-4 >= signed_char_Array_0[1]) ? (unsigned_char_Array_0[1] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (((((1) < 0 ) ? -(1) : (1))))) ? (unsigned_char_Array_0[0]) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1) && (((8 * unsigned_char_Array_0[1]) == ((((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) ((double_Array_0[2] < float_Array_0[0]) && BOOL_unsigned_char_Array_0[0][0]))) : ((float_Array_0[0] >= ((((double_Array_0[2]) < 0 ) ? -(double_Array_0[2]) : (double_Array_0[2])))) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][0])))) && (BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_char_Array_0[0] > signed_char_Array_0[1]) ? (double_Array_0[2] == ((double) ((((((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) > (double_Array_0[1])) ? (((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) : (double_Array_0[1]))))) : (BOOL_unsigned_char_Array_0[1][0] ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1)) : 1)) && (float_Array_0[0] == ((float) double_Array_0[0])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] EXPR ((((-4 >= signed_char_Array_0[1]) ? (unsigned_char_Array_0[1] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (((((1) < 0 ) ? -(1) : (1))))) ? (unsigned_char_Array_0[0]) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1) && (((8 * unsigned_char_Array_0[1]) == ((((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) ((double_Array_0[2] < float_Array_0[0]) && BOOL_unsigned_char_Array_0[0][0]))) : ((float_Array_0[0] >= ((((double_Array_0[2]) < 0 ) ? -(double_Array_0[2]) : (double_Array_0[2])))) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][0])))) && (BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_char_Array_0[0] > signed_char_Array_0[1]) ? (double_Array_0[2] == ((double) ((((((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) > (double_Array_0[1])) ? (((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) : (double_Array_0[1]))))) : (BOOL_unsigned_char_Array_0[1][0] ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1)) : 1)) && (float_Array_0[0] == ((float) double_Array_0[0])) [L95] EXPR float_Array_0[0] [L95] EXPR double_Array_0[0] [L95] EXPR ((((-4 >= signed_char_Array_0[1]) ? (unsigned_char_Array_0[1] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (((((1) < 0 ) ? -(1) : (1))))) ? (unsigned_char_Array_0[0]) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1) && (((8 * unsigned_char_Array_0[1]) == ((((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) ((double_Array_0[2] < float_Array_0[0]) && BOOL_unsigned_char_Array_0[0][0]))) : ((float_Array_0[0] >= ((((double_Array_0[2]) < 0 ) ? -(double_Array_0[2]) : (double_Array_0[2])))) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][0])))) && (BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_char_Array_0[0] > signed_char_Array_0[1]) ? (double_Array_0[2] == ((double) ((((((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) > (double_Array_0[1])) ? (((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) : (double_Array_0[1]))))) : (BOOL_unsigned_char_Array_0[1][0] ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1)) : 1)) && (float_Array_0[0] == ((float) double_Array_0[0])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] EXPR (((((-4 >= signed_char_Array_0[1]) ? (unsigned_char_Array_0[1] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (((((1) < 0 ) ? -(1) : (1))))) ? (unsigned_char_Array_0[0]) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1) && (((8 * unsigned_char_Array_0[1]) == ((((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) ((double_Array_0[2] < float_Array_0[0]) && BOOL_unsigned_char_Array_0[0][0]))) : ((float_Array_0[0] >= ((((double_Array_0[2]) < 0 ) ? -(double_Array_0[2]) : (double_Array_0[2])))) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][0])))) && (BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_char_Array_0[0] > signed_char_Array_0[1]) ? (double_Array_0[2] == ((double) ((((((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) > (double_Array_0[1])) ? (((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) : (double_Array_0[1]))))) : (BOOL_unsigned_char_Array_0[1][0] ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1)) : 1)) && (float_Array_0[0] == ((float) double_Array_0[0]))) && (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] EXPR (((((-4 >= signed_char_Array_0[1]) ? (unsigned_char_Array_0[1] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (((((1) < 0 ) ? -(1) : (1))))) ? (unsigned_char_Array_0[0]) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1) && (((8 * unsigned_char_Array_0[1]) == ((((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) ((double_Array_0[2] < float_Array_0[0]) && BOOL_unsigned_char_Array_0[0][0]))) : ((float_Array_0[0] >= ((((double_Array_0[2]) < 0 ) ? -(double_Array_0[2]) : (double_Array_0[2])))) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][0])))) && (BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_char_Array_0[0] > signed_char_Array_0[1]) ? (double_Array_0[2] == ((double) ((((((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) > (double_Array_0[1])) ? (((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) : (double_Array_0[1]))))) : (BOOL_unsigned_char_Array_0[1][0] ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1)) : 1)) && (float_Array_0[0] == ((float) double_Array_0[0]))) && (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95-L96] return (((((-4 >= signed_char_Array_0[1]) ? (unsigned_char_Array_0[1] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (((((1) < 0 ) ? -(1) : (1))))) ? (unsigned_char_Array_0[0]) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1) && (((8 * unsigned_char_Array_0[1]) == ((((10) > (unsigned_char_Array_0[1])) ? (10) : (unsigned_char_Array_0[1])))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) ((double_Array_0[2] < float_Array_0[0]) && BOOL_unsigned_char_Array_0[0][0]))) : ((float_Array_0[0] >= ((((double_Array_0[2]) < 0 ) ? -(double_Array_0[2]) : (double_Array_0[2])))) ? (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) 0)))) : (BOOL_unsigned_char_Array_0[1][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][0])))) && (BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_char_Array_0[0] > signed_char_Array_0[1]) ? (double_Array_0[2] == ((double) ((((((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) > (double_Array_0[1])) ? (((((double_Array_0[0]) > (16.5)) ? (double_Array_0[0]) : (16.5)))) : (double_Array_0[1]))))) : (BOOL_unsigned_char_Array_0[1][0] ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1)) : 1)) && (float_Array_0[0] == ((float) double_Array_0[0]))) && (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_char_Array_0={7:0}, unsigned_char_Array_0={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 110 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.1s, OverallIterations: 14, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1165 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1160 mSDsluCounter, 11600 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9099 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1486 IncrementalHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 2501 mSDtfsCounter, 1486 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 547 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=687occurred in iteration=10, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 516 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 1927 NumberOfCodeBlocks, 1927 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1800 ConstructedInterpolants, 0 QuantifiedInterpolants, 3431 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1475 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 4367/4488 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 [2024-11-23 23:25:23,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-54.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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_fdc9ffe0-e311-419f-bbde-215075921ca8/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 2f657570a1e1457f1f304b0d552f8742bb723e9b2810b7fa1033cb000332d16c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:25:26,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:25:26,784 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 23:25:26,798 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:25:26,798 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:25:26,839 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:25:26,841 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:25:26,841 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:25:26,842 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:25:26,842 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:25:26,844 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:25:26,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:25:26,845 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:25:26,845 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:25:26,846 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:25:26,846 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:25:26,846 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:25:26,846 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:25:26,846 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:25:26,846 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:25:26,847 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:25:26,847 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:25:26,847 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:25:26,847 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 23:25:26,847 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 23:25:26,847 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 23:25:26,848 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:25:26,848 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:25:26,848 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:25:26,848 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:25:26,848 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:25:26,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:25:26,849 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:25:26,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:25:26,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:25:26,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:25:26,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:25:26,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:25:26,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:25:26,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:25:26,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:25:26,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:25:26,850 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:25:26,850 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:25:26,850 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 23:25:26,850 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 23:25:26,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:25:26,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:25:26,851 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:25:26,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:25:26,851 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_fdc9ffe0-e311-419f-bbde-215075921ca8/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 -> 2f657570a1e1457f1f304b0d552f8742bb723e9b2810b7fa1033cb000332d16c [2024-11-23 23:25:27,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:25:27,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:25:27,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:25:27,214 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:25:27,214 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:25:27,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-54.i [2024-11-23 23:25:30,223 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/data/15297845e/f3762005199e4fa590a9b39c6a0d6446/FLAG2e70020fe [2024-11-23 23:25:30,509 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:25:30,510 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-54.i [2024-11-23 23:25:30,517 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/data/15297845e/f3762005199e4fa590a9b39c6a0d6446/FLAG2e70020fe [2024-11-23 23:25:30,531 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/data/15297845e/f3762005199e4fa590a9b39c6a0d6446 [2024-11-23 23:25:30,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:25:30,536 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:25:30,537 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:25:30,537 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:25:30,545 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:25:30,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:25:30" (1/1) ... [2024-11-23 23:25:30,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ced063d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:30, skipping insertion in model container [2024-11-23 23:25:30,548 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:25:30" (1/1) ... [2024-11-23 23:25:30,565 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:25:30,745 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_fdc9ffe0-e311-419f-bbde-215075921ca8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-54.i[916,929] [2024-11-23 23:25:30,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:25:30,844 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:25:30,855 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_fdc9ffe0-e311-419f-bbde-215075921ca8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-54.i[916,929] [2024-11-23 23:25:30,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:25:30,955 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:25:30,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:30 WrapperNode [2024-11-23 23:25:30,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:25:30,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:25:30,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:25:30,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:25:30,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:30" (1/1) ... [2024-11-23 23:25:30,992 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:30" (1/1) ... [2024-11-23 23:25:31,036 INFO L138 Inliner]: procedures = 33, calls = 143, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 468 [2024-11-23 23:25:31,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:25:31,037 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:25:31,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:25:31,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:25:31,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:30" (1/1) ... [2024-11-23 23:25:31,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:30" (1/1) ... [2024-11-23 23:25:31,064 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:30" (1/1) ... [2024-11-23 23:25:31,107 INFO L175 MemorySlicer]: Split 115 memory accesses to 6 slices as follows [2, 33, 41, 7, 13, 19]. 36 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 3, 1, 2, 2]. The 16 writes are split as follows [0, 7, 4, 1, 2, 2]. [2024-11-23 23:25:31,107 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:30" (1/1) ... [2024-11-23 23:25:31,108 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:30" (1/1) ... [2024-11-23 23:25:31,133 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:30" (1/1) ... [2024-11-23 23:25:31,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:30" (1/1) ... [2024-11-23 23:25:31,139 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:30" (1/1) ... [2024-11-23 23:25:31,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:30" (1/1) ... [2024-11-23 23:25:31,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:30" (1/1) ... [2024-11-23 23:25:31,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:25:31,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:25:31,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:25:31,153 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:25:31,154 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:30" (1/1) ... [2024-11-23 23:25:31,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:25:31,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:25:31,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:25:31,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:25:31,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:25:31,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-23 23:25:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-23 23:25:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-23 23:25:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-23 23:25:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-23 23:25:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-11-23 23:25:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-23 23:25:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-23 23:25:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-23 23:25:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-23 23:25:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-23 23:25:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-11-23 23:25:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-23 23:25:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-23 23:25:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-23 23:25:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-23 23:25:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-23 23:25:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-23 23:25:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 23:25:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-23 23:25:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-23 23:25:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-23 23:25:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-23 23:25:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-23 23:25:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-23 23:25:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-23 23:25:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-23 23:25:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-23 23:25:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-23 23:25:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-23 23:25:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-23 23:25:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-23 23:25:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-11-23 23:25:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-11-23 23:25:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-11-23 23:25:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2024-11-23 23:25:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-23 23:25:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-23 23:25:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-23 23:25:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-23 23:25:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-23 23:25:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-23 23:25:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-23 23:25:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-23 23:25:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-23 23:25:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-23 23:25:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-23 23:25:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-23 23:25:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:25:31,235 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:25:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:25:31,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:25:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-23 23:25:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-23 23:25:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-23 23:25:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-23 23:25:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-23 23:25:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-23 23:25:31,417 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:25:31,419 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:25:33,138 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-23 23:25:33,138 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:25:33,157 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:25:33,157 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:25:33,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:25:33 BoogieIcfgContainer [2024-11-23 23:25:33,158 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:25:33,162 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:25:33,162 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:25:33,171 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:25:33,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:25:30" (1/3) ... [2024-11-23 23:25:33,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c5ece8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:25:33, skipping insertion in model container [2024-11-23 23:25:33,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:30" (2/3) ... [2024-11-23 23:25:33,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c5ece8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:25:33, skipping insertion in model container [2024-11-23 23:25:33,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:25:33" (3/3) ... [2024-11-23 23:25:33,174 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-54.i [2024-11-23 23:25:33,194 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:25:33,196 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-54.i that has 2 procedures, 110 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:25:33,271 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:25:33,288 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;@6a21bf20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:25:33,290 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:25:33,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 95 states have (on average 1.4526315789473685) internal successors, (138), 96 states have internal predecessors, (138), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:25:33,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:25:33,313 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:33,314 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:33,315 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:33,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:33,322 INFO L85 PathProgramCache]: Analyzing trace with hash -772808128, now seen corresponding path program 1 times [2024-11-23 23:25:33,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:25:33,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812964299] [2024-11-23 23:25:33,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:33,339 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 [2024-11-23 23:25:33,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:25:33,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:25:33,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:33,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:25:33,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-23 23:25:33,832 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:25:33,832 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:25:33,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812964299] [2024-11-23 23:25:33,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812964299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:33,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:33,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:25:33,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410695500] [2024-11-23 23:25:33,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:33,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:25:33,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:25:33,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:25:33,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:25:33,861 INFO L87 Difference]: Start difference. First operand has 110 states, 95 states have (on average 1.4526315789473685) internal successors, (138), 96 states have internal predecessors, (138), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:25:33,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:33,889 INFO L93 Difference]: Finished difference Result 213 states and 330 transitions. [2024-11-23 23:25:33,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:25:33,890 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2024-11-23 23:25:33,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:33,896 INFO L225 Difference]: With dead ends: 213 [2024-11-23 23:25:33,897 INFO L226 Difference]: Without dead ends: 106 [2024-11-23 23:25:33,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:25:33,903 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:33,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:25:33,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-23 23:25:33,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-23 23:25:33,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 92 states have (on average 1.423913043478261) internal successors, (131), 92 states have internal predecessors, (131), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:25:33,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 155 transitions. [2024-11-23 23:25:33,946 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 155 transitions. Word has length 105 [2024-11-23 23:25:33,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:33,946 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 155 transitions. [2024-11-23 23:25:33,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:25:33,951 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 155 transitions. [2024-11-23 23:25:33,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:25:33,958 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:33,958 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:33,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:34,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:34,159 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:34,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:34,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1959980268, now seen corresponding path program 1 times [2024-11-23 23:25:34,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:25:34,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794859922] [2024-11-23 23:25:34,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:34,160 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 [2024-11-23 23:25:34,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:25:34,165 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:25:34,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:34,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:25:34,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:34,705 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:34,705 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:25:34,705 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:25:34,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794859922] [2024-11-23 23:25:34,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1794859922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:34,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:34,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:25:34,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037466173] [2024-11-23 23:25:34,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:34,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:25:34,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:25:34,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:25:34,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:25:34,709 INFO L87 Difference]: Start difference. First operand 106 states and 155 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:34,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:34,774 INFO L93 Difference]: Finished difference Result 211 states and 310 transitions. [2024-11-23 23:25:34,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:25:34,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2024-11-23 23:25:34,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:34,777 INFO L225 Difference]: With dead ends: 211 [2024-11-23 23:25:34,777 INFO L226 Difference]: Without dead ends: 108 [2024-11-23 23:25:34,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:25:34,778 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:34,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 448 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:25:34,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-23 23:25:34,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-23 23:25:34,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 94 states have (on average 1.4148936170212767) internal successors, (133), 94 states have internal predecessors, (133), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:25:34,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 157 transitions. [2024-11-23 23:25:34,794 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 157 transitions. Word has length 105 [2024-11-23 23:25:34,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:34,795 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 157 transitions. [2024-11-23 23:25:34,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:34,796 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 157 transitions. [2024-11-23 23:25:34,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 23:25:34,797 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:34,798 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:34,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-23 23:25:34,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:34,999 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:34,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:34,999 INFO L85 PathProgramCache]: Analyzing trace with hash -963825561, now seen corresponding path program 1 times [2024-11-23 23:25:35,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:25:35,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92022988] [2024-11-23 23:25:35,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:35,000 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 [2024-11-23 23:25:35,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:25:35,002 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:25:35,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:35,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:25:35,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:35,524 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:35,524 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:25:35,525 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:25:35,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92022988] [2024-11-23 23:25:35,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92022988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:35,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:35,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:25:35,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570957520] [2024-11-23 23:25:35,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:35,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:25:35,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:25:35,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:25:35,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:25:35,527 INFO L87 Difference]: Start difference. First operand 108 states and 157 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:36,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:36,181 INFO L93 Difference]: Finished difference Result 218 states and 318 transitions. [2024-11-23 23:25:36,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:25:36,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2024-11-23 23:25:36,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:36,188 INFO L225 Difference]: With dead ends: 218 [2024-11-23 23:25:36,188 INFO L226 Difference]: Without dead ends: 113 [2024-11-23 23:25:36,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:25:36,194 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:36,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 584 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:25:36,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-23 23:25:36,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2024-11-23 23:25:36,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 98 states have (on average 1.3979591836734695) internal successors, (137), 98 states have internal predecessors, (137), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:25:36,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 161 transitions. [2024-11-23 23:25:36,214 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 161 transitions. Word has length 107 [2024-11-23 23:25:36,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:36,215 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 161 transitions. [2024-11-23 23:25:36,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:36,215 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 161 transitions. [2024-11-23 23:25:36,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 23:25:36,217 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:36,217 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:36,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-23 23:25:36,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:36,419 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:36,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:36,420 INFO L85 PathProgramCache]: Analyzing trace with hash 811181801, now seen corresponding path program 1 times [2024-11-23 23:25:36,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:25:36,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625023440] [2024-11-23 23:25:36,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:36,421 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 [2024-11-23 23:25:36,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:25:36,425 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:25:36,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:36,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:25:36,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:36,873 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:36,874 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:25:36,874 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:25:36,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625023440] [2024-11-23 23:25:36,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1625023440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:36,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:36,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:25:36,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752836185] [2024-11-23 23:25:36,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:36,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:25:36,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:25:36,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:25:36,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:25:36,876 INFO L87 Difference]: Start difference. First operand 112 states and 161 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:37,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:37,150 INFO L93 Difference]: Finished difference Result 224 states and 323 transitions. [2024-11-23 23:25:37,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:25:37,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2024-11-23 23:25:37,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:37,159 INFO L225 Difference]: With dead ends: 224 [2024-11-23 23:25:37,161 INFO L226 Difference]: Without dead ends: 115 [2024-11-23 23:25:37,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:25:37,163 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 1 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:37,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 724 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:25:37,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-23 23:25:37,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 114. [2024-11-23 23:25:37,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 100 states have (on average 1.39) internal successors, (139), 100 states have internal predecessors, (139), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:25:37,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 163 transitions. [2024-11-23 23:25:37,183 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 163 transitions. Word has length 107 [2024-11-23 23:25:37,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:37,186 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 163 transitions. [2024-11-23 23:25:37,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:37,187 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 163 transitions. [2024-11-23 23:25:37,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 23:25:37,188 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:37,189 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:37,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:37,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:37,389 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:37,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:37,390 INFO L85 PathProgramCache]: Analyzing trace with hash 813028843, now seen corresponding path program 1 times [2024-11-23 23:25:37,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:25:37,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615729885] [2024-11-23 23:25:37,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:37,391 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 [2024-11-23 23:25:37,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:25:37,398 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:25:37,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:37,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:25:37,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:37,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-23 23:25:37,958 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:37,958 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:25:37,959 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:25:37,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615729885] [2024-11-23 23:25:37,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615729885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:37,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:37,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:25:37,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094324426] [2024-11-23 23:25:37,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:37,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:25:37,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:25:37,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:25:37,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:25:37,963 INFO L87 Difference]: Start difference. First operand 114 states and 163 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:38,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:38,733 INFO L93 Difference]: Finished difference Result 327 states and 470 transitions. [2024-11-23 23:25:38,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:25:38,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2024-11-23 23:25:38,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:38,736 INFO L225 Difference]: With dead ends: 327 [2024-11-23 23:25:38,736 INFO L226 Difference]: Without dead ends: 216 [2024-11-23 23:25:38,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:25:38,737 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 136 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:38,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 550 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:25:38,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-23 23:25:38,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 135. [2024-11-23 23:25:38,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 121 states have (on average 1.421487603305785) internal successors, (172), 121 states have internal predecessors, (172), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 23:25:38,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 196 transitions. [2024-11-23 23:25:38,750 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 196 transitions. Word has length 107 [2024-11-23 23:25:38,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:38,751 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 196 transitions. [2024-11-23 23:25:38,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:38,751 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 196 transitions. [2024-11-23 23:25:38,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-23 23:25:38,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:38,753 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:38,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:38,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:38,953 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:38,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:38,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1898838398, now seen corresponding path program 1 times [2024-11-23 23:25:38,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:25:38,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688270185] [2024-11-23 23:25:38,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:38,955 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 [2024-11-23 23:25:38,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:25:38,957 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:25:38,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:39,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:25:39,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:39,713 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 [2024-11-23 23:25:39,807 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 [2024-11-23 23:25:39,825 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:39,825 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:25:39,825 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:25:39,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688270185] [2024-11-23 23:25:39,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1688270185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:39,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:39,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:25:39,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368052390] [2024-11-23 23:25:39,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:39,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:25:39,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:25:39,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:25:39,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:25:39,830 INFO L87 Difference]: Start difference. First operand 135 states and 196 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:40,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:40,160 INFO L93 Difference]: Finished difference Result 372 states and 540 transitions. [2024-11-23 23:25:40,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:25:40,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-11-23 23:25:40,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:40,163 INFO L225 Difference]: With dead ends: 372 [2024-11-23 23:25:40,163 INFO L226 Difference]: Without dead ends: 240 [2024-11-23 23:25:40,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:25:40,164 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 94 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:40,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 421 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:25:40,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-23 23:25:40,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 236. [2024-11-23 23:25:40,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 209 states have (on average 1.4066985645933014) internal successors, (294), 209 states have internal predecessors, (294), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-23 23:25:40,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 342 transitions. [2024-11-23 23:25:40,210 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 342 transitions. Word has length 108 [2024-11-23 23:25:40,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:40,211 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 342 transitions. [2024-11-23 23:25:40,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:40,211 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 342 transitions. [2024-11-23 23:25:40,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-23 23:25:40,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:40,214 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:40,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:40,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:40,415 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:40,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:40,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1081189948, now seen corresponding path program 1 times [2024-11-23 23:25:40,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:25:40,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474050426] [2024-11-23 23:25:40,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:40,416 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 [2024-11-23 23:25:40,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:25:40,420 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:25:40,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:40,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:25:40,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:40,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-23 23:25:40,883 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:40,883 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:25:40,883 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:25:40,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474050426] [2024-11-23 23:25:40,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474050426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:40,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:40,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:25:40,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017940252] [2024-11-23 23:25:40,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:40,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:25:40,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:25:40,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:25:40,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:25:40,885 INFO L87 Difference]: Start difference. First operand 236 states and 342 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:42,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:42,543 INFO L93 Difference]: Finished difference Result 589 states and 855 transitions. [2024-11-23 23:25:42,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:25:42,544 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-11-23 23:25:42,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:42,546 INFO L225 Difference]: With dead ends: 589 [2024-11-23 23:25:42,547 INFO L226 Difference]: Without dead ends: 356 [2024-11-23 23:25:42,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:25:42,548 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 144 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:42,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 539 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 23:25:42,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-23 23:25:42,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 251. [2024-11-23 23:25:42,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 224 states have (on average 1.4107142857142858) internal successors, (316), 224 states have internal predecessors, (316), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-23 23:25:42,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 364 transitions. [2024-11-23 23:25:42,567 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 364 transitions. Word has length 108 [2024-11-23 23:25:42,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:42,568 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 364 transitions. [2024-11-23 23:25:42,568 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:42,568 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 364 transitions. [2024-11-23 23:25:42,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-23 23:25:42,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:42,570 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:42,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-23 23:25:42,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:42,770 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:42,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:42,771 INFO L85 PathProgramCache]: Analyzing trace with hash 494383934, now seen corresponding path program 1 times [2024-11-23 23:25:42,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:25:42,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276251727] [2024-11-23 23:25:42,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:42,771 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 [2024-11-23 23:25:42,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:25:42,773 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:25:42,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:43,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-23 23:25:43,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:43,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-23 23:25:43,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 24 [2024-11-23 23:25:44,674 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 54 treesize of output 35 [2024-11-23 23:25:44,938 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:25:44,938 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 71 treesize of output 35 [2024-11-23 23:25:45,055 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 100 proven. 48 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-23 23:25:45,057 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:25:45,327 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:45,328 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:25:45,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276251727] [2024-11-23 23:25:45,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276251727] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:25:45,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:25:45,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 17 [2024-11-23 23:25:45,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485372325] [2024-11-23 23:25:45,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:45,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:25:45,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:25:45,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:25:45,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:25:45,331 INFO L87 Difference]: Start difference. First operand 251 states and 364 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:46,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:46,299 INFO L93 Difference]: Finished difference Result 623 states and 889 transitions. [2024-11-23 23:25:46,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:25:46,300 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-11-23 23:25:46,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:46,302 INFO L225 Difference]: With dead ends: 623 [2024-11-23 23:25:46,303 INFO L226 Difference]: Without dead ends: 375 [2024-11-23 23:25:46,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 198 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:25:46,304 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 67 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:46,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 682 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:25:46,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-23 23:25:46,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 371. [2024-11-23 23:25:46,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 338 states have (on average 1.3816568047337279) internal successors, (467), 340 states have internal predecessors, (467), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-23 23:25:46,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 523 transitions. [2024-11-23 23:25:46,327 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 523 transitions. Word has length 108 [2024-11-23 23:25:46,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:46,328 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 523 transitions. [2024-11-23 23:25:46,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:46,328 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 523 transitions. [2024-11-23 23:25:46,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:25:46,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:46,330 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:46,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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)] Ended with exit code 0 [2024-11-23 23:25:46,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:46,531 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:46,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:46,532 INFO L85 PathProgramCache]: Analyzing trace with hash 9422404, now seen corresponding path program 1 times [2024-11-23 23:25:46,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:25:46,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349099952] [2024-11-23 23:25:46,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:46,532 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 [2024-11-23 23:25:46,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:25:46,536 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:25:46,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:46,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 23:25:46,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:46,904 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 12 treesize of output 8 [2024-11-23 23:25:47,059 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 34 treesize of output 29 [2024-11-23 23:25:47,219 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:25:47,220 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 38 treesize of output 20 [2024-11-23 23:25:47,249 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-23 23:25:47,249 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:25:47,250 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:25:47,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349099952] [2024-11-23 23:25:47,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349099952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:47,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:47,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:25:47,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511923512] [2024-11-23 23:25:47,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:47,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:25:47,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:25:47,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:25:47,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:25:47,252 INFO L87 Difference]: Start difference. First operand 371 states and 523 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:25:47,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:47,958 INFO L93 Difference]: Finished difference Result 1048 states and 1474 transitions. [2024-11-23 23:25:47,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:25:47,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-23 23:25:47,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:47,965 INFO L225 Difference]: With dead ends: 1048 [2024-11-23 23:25:47,965 INFO L226 Difference]: Without dead ends: 680 [2024-11-23 23:25:47,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:25:47,967 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 384 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:47,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 690 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:25:47,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2024-11-23 23:25:48,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 676. [2024-11-23 23:25:48,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 615 states have (on average 1.3707317073170733) internal successors, (843), 621 states have internal predecessors, (843), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 46 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-23 23:25:48,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 947 transitions. [2024-11-23 23:25:48,026 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 947 transitions. Word has length 109 [2024-11-23 23:25:48,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:48,027 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 947 transitions. [2024-11-23 23:25:48,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:25:48,027 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 947 transitions. [2024-11-23 23:25:48,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:25:48,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:48,029 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:48,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:48,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:48,230 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:48,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:48,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1001694846, now seen corresponding path program 1 times [2024-11-23 23:25:48,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:25:48,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405295695] [2024-11-23 23:25:48,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:48,231 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 [2024-11-23 23:25:48,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:25:48,233 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:25:48,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:48,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:25:48,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:48,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-23 23:25:48,607 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 [2024-11-23 23:25:48,688 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:48,688 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:25:48,688 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:25:48,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405295695] [2024-11-23 23:25:48,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405295695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:48,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:48,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:25:48,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861483432] [2024-11-23 23:25:48,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:48,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:25:48,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:25:48,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:25:48,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:25:48,690 INFO L87 Difference]: Start difference. First operand 676 states and 947 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:49,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:49,573 INFO L93 Difference]: Finished difference Result 1691 states and 2370 transitions. [2024-11-23 23:25:49,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:25:49,574 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-23 23:25:49,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:49,582 INFO L225 Difference]: With dead ends: 1691 [2024-11-23 23:25:49,582 INFO L226 Difference]: Without dead ends: 1018 [2024-11-23 23:25:49,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:25:49,585 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 141 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:49,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1517 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:25:49,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2024-11-23 23:25:49,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 699. [2024-11-23 23:25:49,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 626 states have (on average 1.3674121405750799) internal successors, (856), 633 states have internal predecessors, (856), 62 states have call successors, (62), 10 states have call predecessors, (62), 10 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 23:25:49,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 980 transitions. [2024-11-23 23:25:49,673 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 980 transitions. Word has length 109 [2024-11-23 23:25:49,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:49,675 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 980 transitions. [2024-11-23 23:25:49,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:49,675 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 980 transitions. [2024-11-23 23:25:49,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:25:49,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:49,679 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:49,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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)] Forceful destruction successful, exit code 0 [2024-11-23 23:25:49,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:49,879 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:49,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:49,881 INFO L85 PathProgramCache]: Analyzing trace with hash 143435910, now seen corresponding path program 1 times [2024-11-23 23:25:49,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:25:49,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223828206] [2024-11-23 23:25:49,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:49,882 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 [2024-11-23 23:25:49,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:25:49,885 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:25:49,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:50,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-23 23:25:50,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:50,279 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 31 treesize of output 26 [2024-11-23 23:25:50,443 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:25:50,443 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 46 treesize of output 22 [2024-11-23 23:25:50,552 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:50,552 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:25:50,552 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:25:50,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223828206] [2024-11-23 23:25:50,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223828206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:50,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:50,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:25:50,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826965728] [2024-11-23 23:25:50,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:50,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:25:50,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:25:50,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:25:50,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:25:50,554 INFO L87 Difference]: Start difference. First operand 699 states and 980 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:51,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:51,376 INFO L93 Difference]: Finished difference Result 1606 states and 2247 transitions. [2024-11-23 23:25:51,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:25:51,377 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-23 23:25:51,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:51,382 INFO L225 Difference]: With dead ends: 1606 [2024-11-23 23:25:51,382 INFO L226 Difference]: Without dead ends: 949 [2024-11-23 23:25:51,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:25:51,385 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 129 mSDsluCounter, 1649 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:51,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 1924 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:25:51,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-23 23:25:51,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 679. [2024-11-23 23:25:51,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 606 states have (on average 1.3663366336633664) internal successors, (828), 613 states have internal predecessors, (828), 62 states have call successors, (62), 10 states have call predecessors, (62), 10 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 23:25:51,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 952 transitions. [2024-11-23 23:25:51,466 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 952 transitions. Word has length 109 [2024-11-23 23:25:51,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:51,467 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 952 transitions. [2024-11-23 23:25:51,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:51,468 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 952 transitions. [2024-11-23 23:25:51,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:25:51,469 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:51,470 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:51,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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)] Forceful destruction successful, exit code 0 [2024-11-23 23:25:51,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:51,673 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:51,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:51,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1465883152, now seen corresponding path program 1 times [2024-11-23 23:25:51,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:25:51,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46750224] [2024-11-23 23:25:51,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:51,682 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 [2024-11-23 23:25:51,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:25:51,687 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:25:51,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:52,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:25:52,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:52,203 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 [2024-11-23 23:25:52,209 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 [2024-11-23 23:25:52,329 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:25:52,329 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 57 treesize of output 27 [2024-11-23 23:25:52,372 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:25:52,373 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:25:52,373 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:25:52,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46750224] [2024-11-23 23:25:52,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [46750224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:52,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:52,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:25:52,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095292512] [2024-11-23 23:25:52,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:52,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:25:52,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:25:52,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:25:52,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:25:52,375 INFO L87 Difference]: Start difference. First operand 679 states and 952 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:52,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:52,558 INFO L93 Difference]: Finished difference Result 721 states and 997 transitions. [2024-11-23 23:25:52,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:25:52,559 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-23 23:25:52,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:52,562 INFO L225 Difference]: With dead ends: 721 [2024-11-23 23:25:52,563 INFO L226 Difference]: Without dead ends: 719 [2024-11-23 23:25:52,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:25:52,564 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 119 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 817 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 [2024-11-23 23:25:52,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 817 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:25:52,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-11-23 23:25:52,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2024-11-23 23:25:52,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 642 states have (on average 1.3457943925233644) internal successors, (864), 649 states have internal predecessors, (864), 62 states have call successors, (62), 14 states have call predecessors, (62), 14 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 23:25:52,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 988 transitions. [2024-11-23 23:25:52,627 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 988 transitions. Word has length 110 [2024-11-23 23:25:52,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:52,628 INFO L471 AbstractCegarLoop]: Abstraction has 719 states and 988 transitions. [2024-11-23 23:25:52,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:25:52,628 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 988 transitions. [2024-11-23 23:25:52,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:25:52,630 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:52,630 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:52,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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)] Forceful destruction successful, exit code 0 [2024-11-23 23:25:52,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:25:52,831 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:52,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:52,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1467730194, now seen corresponding path program 1 times [2024-11-23 23:25:52,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:25:52,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1735724246] [2024-11-23 23:25:52,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:52,832 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 [2024-11-23 23:25:52,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:25:52,835 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:25:52,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-23 23:25:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:53,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 23:25:53,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:54,054 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 [2024-11-23 23:25:54,683 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:25:54,684 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 126 treesize of output 67 [2024-11-23 23:25:59,373 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 [2024-11-23 23:26:13,083 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 203 treesize of output 167 [2024-11-23 23:26:13,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:26:13,107 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 277 treesize of output 121 [2024-11-23 23:26:13,861 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-23 23:26:13,861 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:26:13,862 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:26:13,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1735724246] [2024-11-23 23:26:13,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1735724246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:26:13,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:26:13,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:26:13,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804807349] [2024-11-23 23:26:13,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:26:13,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:26:13,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:26:13,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:26:13,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=81, Unknown=1, NotChecked=0, Total=110 [2024-11-23 23:26:13,863 INFO L87 Difference]: Start difference. First operand 719 states and 988 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 23:26:19,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:26:26,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:26:29,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:26:33,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:26:36,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:26:40,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:26:46,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:26:51,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:27:12,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:12,686 INFO L93 Difference]: Finished difference Result 2635 states and 3596 transitions. [2024-11-23 23:27:12,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:27:12,694 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2024-11-23 23:27:12,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:12,703 INFO L225 Difference]: With dead ends: 2635 [2024-11-23 23:27:12,703 INFO L226 Difference]: Without dead ends: 1958 [2024-11-23 23:27:12,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=47, Invalid=133, Unknown=2, NotChecked=0, Total=182 [2024-11-23 23:27:12,705 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 473 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:12,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 956 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 636 Invalid, 8 Unknown, 0 Unchecked, 52.1s Time] [2024-11-23 23:27:12,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2024-11-23 23:27:12,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1946. [2024-11-23 23:27:12,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1946 states, 1755 states have (on average 1.3367521367521367) internal successors, (2346), 1781 states have internal predecessors, (2346), 150 states have call successors, (150), 40 states have call predecessors, (150), 40 states have return successors, (150), 124 states have call predecessors, (150), 150 states have call successors, (150) [2024-11-23 23:27:12,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 2646 transitions. [2024-11-23 23:27:12,878 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 2646 transitions. Word has length 110 [2024-11-23 23:27:12,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:12,879 INFO L471 AbstractCegarLoop]: Abstraction has 1946 states and 2646 transitions. [2024-11-23 23:27:12,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 23:27:12,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 2646 transitions. [2024-11-23 23:27:12,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:27:12,882 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:12,882 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:27:12,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-23 23:27:13,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:27:13,083 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:13,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:13,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1052229740, now seen corresponding path program 1 times [2024-11-23 23:27:13,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:27:13,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1061956289] [2024-11-23 23:27:13,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:13,084 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 [2024-11-23 23:27:13,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:27:13,086 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:27:13,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:27:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:13,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:27:13,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:27:13,427 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:27:13,427 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:27:13,427 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:27:13,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1061956289] [2024-11-23 23:27:13,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1061956289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:13,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:13,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:27:13,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104757816] [2024-11-23 23:27:13,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:13,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:27:13,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:27:13,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:27:13,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:27:13,429 INFO L87 Difference]: Start difference. First operand 1946 states and 2646 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:27:13,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:13,793 INFO L93 Difference]: Finished difference Result 3900 states and 5304 transitions. [2024-11-23 23:27:13,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:27:13,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-23 23:27:13,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:13,802 INFO L225 Difference]: With dead ends: 3900 [2024-11-23 23:27:13,802 INFO L226 Difference]: Without dead ends: 2018 [2024-11-23 23:27:13,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:27:13,805 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:13,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 588 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:27:13,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2024-11-23 23:27:13,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 2018. [2024-11-23 23:27:13,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2018 states, 1827 states have (on average 1.3234811165845648) internal successors, (2418), 1853 states have internal predecessors, (2418), 150 states have call successors, (150), 40 states have call predecessors, (150), 40 states have return successors, (150), 124 states have call predecessors, (150), 150 states have call successors, (150) [2024-11-23 23:27:13,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2018 states to 2018 states and 2718 transitions. [2024-11-23 23:27:13,974 INFO L78 Accepts]: Start accepts. Automaton has 2018 states and 2718 transitions. Word has length 110 [2024-11-23 23:27:13,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:13,975 INFO L471 AbstractCegarLoop]: Abstraction has 2018 states and 2718 transitions. [2024-11-23 23:27:13,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:27:13,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2018 states and 2718 transitions. [2024-11-23 23:27:13,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:27:13,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:13,978 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:27:13,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:27:14,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:27:14,179 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:14,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:14,180 INFO L85 PathProgramCache]: Analyzing trace with hash 975104020, now seen corresponding path program 1 times [2024-11-23 23:27:14,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:27:14,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324502587] [2024-11-23 23:27:14,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:14,181 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 [2024-11-23 23:27:14,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:27:14,183 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:27:14,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:27:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:14,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:27:14,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:27:14,538 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-23 23:27:14,538 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:27:14,538 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:27:14,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324502587] [2024-11-23 23:27:14,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324502587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:14,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:14,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:27:14,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933228976] [2024-11-23 23:27:14,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:14,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:27:14,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:27:14,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:27:14,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:27:14,540 INFO L87 Difference]: Start difference. First operand 2018 states and 2718 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:27:15,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:15,097 INFO L93 Difference]: Finished difference Result 3988 states and 5374 transitions. [2024-11-23 23:27:15,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:27:15,105 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), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2024-11-23 23:27:15,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:15,112 INFO L225 Difference]: With dead ends: 3988 [2024-11-23 23:27:15,112 INFO L226 Difference]: Without dead ends: 2018 [2024-11-23 23:27:15,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:27:15,116 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:15,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 448 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:27:15,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2024-11-23 23:27:15,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 2018. [2024-11-23 23:27:15,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2018 states, 1827 states have (on average 1.320744389709907) internal successors, (2413), 1853 states have internal predecessors, (2413), 150 states have call successors, (150), 40 states have call predecessors, (150), 40 states have return successors, (150), 124 states have call predecessors, (150), 150 states have call successors, (150) [2024-11-23 23:27:15,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2018 states to 2018 states and 2713 transitions. [2024-11-23 23:27:15,288 INFO L78 Accepts]: Start accepts. Automaton has 2018 states and 2713 transitions. Word has length 110 [2024-11-23 23:27:15,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:15,288 INFO L471 AbstractCegarLoop]: Abstraction has 2018 states and 2713 transitions. [2024-11-23 23:27:15,288 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), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:27:15,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2018 states and 2713 transitions. [2024-11-23 23:27:15,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:27:15,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:15,292 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:27:15,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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)] Forceful destruction successful, exit code 0 [2024-11-23 23:27:15,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:27:15,493 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:15,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:15,493 INFO L85 PathProgramCache]: Analyzing trace with hash 306004882, now seen corresponding path program 1 times [2024-11-23 23:27:15,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:27:15,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825849113] [2024-11-23 23:27:15,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:15,494 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 [2024-11-23 23:27:15,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:27:15,496 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:27:15,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:27:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:15,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:27:15,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:27:15,877 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 34 treesize of output 16 [2024-11-23 23:27:15,932 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:27:15,932 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:27:15,933 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:27:15,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825849113] [2024-11-23 23:27:15,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825849113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:15,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:15,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:27:15,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349229830] [2024-11-23 23:27:15,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:15,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:27:15,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:27:15,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:27:15,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:27:15,935 INFO L87 Difference]: Start difference. First operand 2018 states and 2713 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:27:16,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:16,417 INFO L93 Difference]: Finished difference Result 3606 states and 4835 transitions. [2024-11-23 23:27:16,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:27:16,418 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-23 23:27:16,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:16,424 INFO L225 Difference]: With dead ends: 3606 [2024-11-23 23:27:16,425 INFO L226 Difference]: Without dead ends: 1652 [2024-11-23 23:27:16,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:27:16,428 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:16,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 567 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:27:16,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2024-11-23 23:27:16,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 1652. [2024-11-23 23:27:16,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1473 states have (on average 1.3034623217922607) internal successors, (1920), 1493 states have internal predecessors, (1920), 138 states have call successors, (138), 40 states have call predecessors, (138), 40 states have return successors, (138), 118 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-23 23:27:16,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 2196 transitions. [2024-11-23 23:27:16,578 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 2196 transitions. Word has length 111 [2024-11-23 23:27:16,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:16,578 INFO L471 AbstractCegarLoop]: Abstraction has 1652 states and 2196 transitions. [2024-11-23 23:27:16,579 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:27:16,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 2196 transitions. [2024-11-23 23:27:16,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 23:27:16,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:16,581 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:27:16,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:27:16,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:27:16,782 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:16,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:16,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1000745361, now seen corresponding path program 1 times [2024-11-23 23:27:16,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:27:16,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987241457] [2024-11-23 23:27:16,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:16,785 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 [2024-11-23 23:27:16,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:27:16,787 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:27:16,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:27:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:17,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:27:17,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:27:17,239 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 12 treesize of output 8 [2024-11-23 23:27:17,429 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 32 treesize of output 27 [2024-11-23 23:27:17,723 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:27:17,724 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 38 treesize of output 25 [2024-11-23 23:27:18,669 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:27:18,669 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 27 treesize of output 13 [2024-11-23 23:27:18,706 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-23 23:27:18,706 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:27:19,175 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 23:27:19,175 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:27:19,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987241457] [2024-11-23 23:27:19,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987241457] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:27:19,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:27:19,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 14 [2024-11-23 23:27:19,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884478154] [2024-11-23 23:27:19,175 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:27:19,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:27:19,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:27:19,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:27:19,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:27:19,177 INFO L87 Difference]: Start difference. First operand 1652 states and 2196 transitions. Second operand has 14 states, 12 states have (on average 7.5) internal successors, (90), 13 states have internal predecessors, (90), 6 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-23 23:27:21,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:21,108 INFO L93 Difference]: Finished difference Result 2828 states and 3711 transitions. [2024-11-23 23:27:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 23:27:21,108 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.5) internal successors, (90), 13 states have internal predecessors, (90), 6 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) Word has length 112 [2024-11-23 23:27:21,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:21,112 INFO L225 Difference]: With dead ends: 2828 [2024-11-23 23:27:21,112 INFO L226 Difference]: Without dead ends: 1240 [2024-11-23 23:27:21,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:27:21,115 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 436 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:21,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 485 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 23:27:21,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2024-11-23 23:27:21,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 992. [2024-11-23 23:27:21,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 853 states have (on average 1.2661195779601406) internal successors, (1080), 863 states have internal predecessors, (1080), 102 states have call successors, (102), 36 states have call predecessors, (102), 36 states have return successors, (102), 92 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-23 23:27:21,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1284 transitions. [2024-11-23 23:27:21,234 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1284 transitions. Word has length 112 [2024-11-23 23:27:21,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:21,234 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1284 transitions. [2024-11-23 23:27:21,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.5) internal successors, (90), 13 states have internal predecessors, (90), 6 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-23 23:27:21,235 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1284 transitions. [2024-11-23 23:27:21,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 23:27:21,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:21,237 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:27:21,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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)] Forceful destruction successful, exit code 0 [2024-11-23 23:27:21,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:27:21,438 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:21,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:21,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1417948679, now seen corresponding path program 1 times [2024-11-23 23:27:21,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:27:21,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982773193] [2024-11-23 23:27:21,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:21,443 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 [2024-11-23 23:27:21,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:27:21,446 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:27:21,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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)] Waiting until timeout for monitored process [2024-11-23 23:27:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:21,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 23:27:21,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:27:21,943 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 36 treesize of output 18 [2024-11-23 23:27:21,990 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:27:21,990 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:27:21,990 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:27:21,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1982773193] [2024-11-23 23:27:21,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1982773193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:21,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:21,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:27:21,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049572644] [2024-11-23 23:27:21,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:21,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:27:21,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:27:21,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:27:21,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:27:21,992 INFO L87 Difference]: Start difference. First operand 992 states and 1284 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:27:22,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:22,823 INFO L93 Difference]: Finished difference Result 1884 states and 2430 transitions. [2024-11-23 23:27:22,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:27:22,824 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-11-23 23:27:22,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:22,827 INFO L225 Difference]: With dead ends: 1884 [2024-11-23 23:27:22,827 INFO L226 Difference]: Without dead ends: 956 [2024-11-23 23:27:22,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:27:22,828 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 107 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:22,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 687 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:27:22,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-11-23 23:27:22,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 944. [2024-11-23 23:27:22,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 805 states have (on average 1.2521739130434784) internal successors, (1008), 815 states have internal predecessors, (1008), 102 states have call successors, (102), 36 states have call predecessors, (102), 36 states have return successors, (102), 92 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-23 23:27:22,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1212 transitions. [2024-11-23 23:27:22,979 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1212 transitions. Word has length 112 [2024-11-23 23:27:22,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:22,979 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1212 transitions. [2024-11-23 23:27:22,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:27:22,979 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1212 transitions. [2024-11-23 23:27:22,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 23:27:22,982 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:22,982 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:27:22,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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)] Forceful destruction successful, exit code 0 [2024-11-23 23:27:23,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:27:23,183 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:23,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:23,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1654464936, now seen corresponding path program 1 times [2024-11-23 23:27:23,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:27:23,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004986147] [2024-11-23 23:27:23,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:23,185 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 [2024-11-23 23:27:23,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:27:23,187 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:27:23,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:27:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:24,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-23 23:27:24,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:27:24,422 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 [2024-11-23 23:27:25,191 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:27:25,191 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 129 treesize of output 55 [2024-11-23 23:27:26,917 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 [2024-11-23 23:27:41,107 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 203 treesize of output 167 [2024-11-23 23:27:41,135 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:27:41,135 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 265 treesize of output 115 [2024-11-23 23:27:41,768 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 149 proven. 15 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-23 23:27:41,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:27:55,078 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:27:55,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004986147] [2024-11-23 23:27:55,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004986147] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:27:55,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1121103538] [2024-11-23 23:27:55,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:55,078 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 23:27:55,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 23:27:55,080 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 23:27:55,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-23 23:27:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:56,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-23 23:27:56,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:27:57,542 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 [2024-11-23 23:28:11,832 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:28:11,833 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 119 treesize of output 77 [2024-11-23 23:28:19,081 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 [2024-11-23 23:28:53,962 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 185 treesize of output 149 [2024-11-23 23:28:53,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:28:53,992 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 181 treesize of output 93 [2024-11-23 23:28:54,452 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 149 proven. 15 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-23 23:28:54,452 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:29:03,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1121103538] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:29:03,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:29:03,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 23 [2024-11-23 23:29:03,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861537826] [2024-11-23 23:29:03,042 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:29:03,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-23 23:29:03,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:29:03,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-23 23:29:03,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=509, Unknown=2, NotChecked=0, Total=650 [2024-11-23 23:29:03,044 INFO L87 Difference]: Start difference. First operand 944 states and 1212 transitions. Second operand has 24 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 20 states have internal predecessors, (116), 6 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-23 23:29:10,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:29:38,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:29:49,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:29:58,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:30:03,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.68s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:30:07,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.97s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:30:12,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:30:14,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:30:14,336 INFO L93 Difference]: Finished difference Result 2318 states and 2956 transitions. [2024-11-23 23:30:14,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 23:30:14,337 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 20 states have internal predecessors, (116), 6 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) Word has length 112 [2024-11-23 23:30:14,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:30:14,343 INFO L225 Difference]: With dead ends: 2318 [2024-11-23 23:30:14,343 INFO L226 Difference]: Without dead ends: 1438 [2024-11-23 23:30:14,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 255 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 52.3s TimeCoverageRelationStatistics Valid=281, Invalid=906, Unknown=3, NotChecked=0, Total=1190 [2024-11-23 23:30:14,345 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 624 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 67 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:30:14,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 1853 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1315 Invalid, 5 Unknown, 0 Unchecked, 51.4s Time] [2024-11-23 23:30:14,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-11-23 23:30:14,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 969. [2024-11-23 23:30:14,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 824 states have (on average 1.25) internal successors, (1030), 835 states have internal predecessors, (1030), 106 states have call successors, (106), 38 states have call predecessors, (106), 38 states have return successors, (106), 95 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-23 23:30:14,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1242 transitions. [2024-11-23 23:30:14,524 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1242 transitions. Word has length 112 [2024-11-23 23:30:14,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:30:14,525 INFO L471 AbstractCegarLoop]: Abstraction has 969 states and 1242 transitions. [2024-11-23 23:30:14,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 20 states have internal predecessors, (116), 6 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-23 23:30:14,525 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1242 transitions. [2024-11-23 23:30:14,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 23:30:14,527 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:30:14,527 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:30:14,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:14,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2024-11-23 23:30:14,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-23 23:30:14,928 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:30:14,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:30:14,928 INFO L85 PathProgramCache]: Analyzing trace with hash -700524778, now seen corresponding path program 1 times [2024-11-23 23:30:14,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:30:14,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943597900] [2024-11-23 23:30:14,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:30:14,928 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 [2024-11-23 23:30:14,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:30:14,930 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:30:14,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:30:15,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:30:15,265 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:30:15,325 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-23 23:30:15,325 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:30:15,326 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:30:15,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943597900] [2024-11-23 23:30:15,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943597900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:30:15,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:30:15,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:30:15,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158075305] [2024-11-23 23:30:15,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:30:15,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:30:15,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:30:15,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:30:15,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:30:15,327 INFO L87 Difference]: Start difference. First operand 969 states and 1242 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 23:30:16,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:30:16,069 INFO L93 Difference]: Finished difference Result 1494 states and 1890 transitions. [2024-11-23 23:30:16,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:30:16,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2024-11-23 23:30:16,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:30:16,081 INFO L225 Difference]: With dead ends: 1494 [2024-11-23 23:30:16,081 INFO L226 Difference]: Without dead ends: 565 [2024-11-23 23:30:16,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:30:16,083 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 1 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:30:16,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 594 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:30:16,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-23 23:30:16,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 541. [2024-11-23 23:30:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 457 states have (on average 1.2297592997811817) internal successors, (562), 461 states have internal predecessors, (562), 58 states have call successors, (58), 25 states have call predecessors, (58), 25 states have return successors, (58), 54 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 23:30:16,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 678 transitions. [2024-11-23 23:30:16,207 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 678 transitions. Word has length 112 [2024-11-23 23:30:16,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:30:16,209 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 678 transitions. [2024-11-23 23:30:16,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 23:30:16,209 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 678 transitions. [2024-11-23 23:30:16,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 23:30:16,210 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:30:16,211 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:30:16,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:16,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:16,411 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:30:16,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:30:16,412 INFO L85 PathProgramCache]: Analyzing trace with hash -144957465, now seen corresponding path program 1 times [2024-11-23 23:30:16,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:30:16,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177228392] [2024-11-23 23:30:16,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:30:16,412 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 [2024-11-23 23:30:16,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:30:16,414 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:30:16,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:30:16,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:30:16,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:30:16,771 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:30:16,771 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:30:16,771 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:30:16,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177228392] [2024-11-23 23:30:16,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177228392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:30:16,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:30:16,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:30:16,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425131897] [2024-11-23 23:30:16,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:30:16,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:30:16,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:30:16,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:30:16,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:30:16,773 INFO L87 Difference]: Start difference. First operand 541 states and 678 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:30:17,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:30:17,100 INFO L93 Difference]: Finished difference Result 982 states and 1221 transitions. [2024-11-23 23:30:17,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:30:17,101 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-23 23:30:17,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:30:17,103 INFO L225 Difference]: With dead ends: 982 [2024-11-23 23:30:17,103 INFO L226 Difference]: Without dead ends: 509 [2024-11-23 23:30:17,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:30:17,105 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:30:17,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 378 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:30:17,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-23 23:30:17,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-23 23:30:17,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 425 states have (on average 1.1976470588235295) internal successors, (509), 429 states have internal predecessors, (509), 58 states have call successors, (58), 25 states have call predecessors, (58), 25 states have return successors, (58), 54 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 23:30:17,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 625 transitions. [2024-11-23 23:30:17,198 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 625 transitions. Word has length 113 [2024-11-23 23:30:17,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:30:17,198 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 625 transitions. [2024-11-23 23:30:17,198 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:30:17,198 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 625 transitions. [2024-11-23 23:30:17,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-23 23:30:17,199 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:30:17,199 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:30:17,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:17,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:17,400 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:30:17,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:30:17,400 INFO L85 PathProgramCache]: Analyzing trace with hash -651190060, now seen corresponding path program 1 times [2024-11-23 23:30:17,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:30:17,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784676391] [2024-11-23 23:30:17,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:30:17,401 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 [2024-11-23 23:30:17,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:30:17,402 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:30:17,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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)] Waiting until timeout for monitored process [2024-11-23 23:30:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:30:17,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:30:17,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:30:17,794 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 [2024-11-23 23:30:17,875 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 [2024-11-23 23:30:17,932 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 [2024-11-23 23:30:18,203 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 29 treesize of output 13 [2024-11-23 23:30:18,246 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 [2024-11-23 23:30:18,295 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-23 23:30:18,295 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:30:18,806 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 23:30:18,806 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:30:18,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784676391] [2024-11-23 23:30:18,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784676391] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:30:18,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:30:18,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-23 23:30:18,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312177220] [2024-11-23 23:30:18,807 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:30:18,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:30:18,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:30:18,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:30:18,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:30:18,808 INFO L87 Difference]: Start difference. First operand 509 states and 625 transitions. Second operand has 11 states, 9 states have (on average 7.666666666666667) internal successors, (69), 11 states have internal predecessors, (69), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-23 23:30:19,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:30:19,948 INFO L93 Difference]: Finished difference Result 912 states and 1101 transitions. [2024-11-23 23:30:19,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:30:19,953 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.666666666666667) internal successors, (69), 11 states have internal predecessors, (69), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) Word has length 114 [2024-11-23 23:30:19,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:30:19,956 INFO L225 Difference]: With dead ends: 912 [2024-11-23 23:30:19,956 INFO L226 Difference]: Without dead ends: 471 [2024-11-23 23:30:19,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 216 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:30:19,959 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 152 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:30:19,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 383 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:30:19,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-23 23:30:20,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 447. [2024-11-23 23:30:20,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 363 states have (on average 1.1487603305785123) internal successors, (417), 367 states have internal predecessors, (417), 58 states have call successors, (58), 25 states have call predecessors, (58), 25 states have return successors, (58), 54 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 23:30:20,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 533 transitions. [2024-11-23 23:30:20,062 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 533 transitions. Word has length 114 [2024-11-23 23:30:20,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:30:20,063 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 533 transitions. [2024-11-23 23:30:20,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.666666666666667) internal successors, (69), 11 states have internal predecessors, (69), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-23 23:30:20,063 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 533 transitions. [2024-11-23 23:30:20,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-23 23:30:20,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:30:20,064 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:30:20,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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)] Forceful destruction successful, exit code 0 [2024-11-23 23:30:20,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:20,264 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:30:20,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:30:20,265 INFO L85 PathProgramCache]: Analyzing trace with hash 900248462, now seen corresponding path program 1 times [2024-11-23 23:30:20,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:30:20,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765939313] [2024-11-23 23:30:20,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:30:20,265 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 [2024-11-23 23:30:20,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:30:20,267 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:30:20,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:30:20,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:30:20,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:30:20,618 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:30:20,618 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:30:20,618 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:30:20,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765939313] [2024-11-23 23:30:20,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765939313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:30:20,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:30:20,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:30:20,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629088664] [2024-11-23 23:30:20,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:30:20,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:30:20,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:30:20,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:30:20,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:30:20,620 INFO L87 Difference]: Start difference. First operand 447 states and 533 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:30:20,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:30:20,713 INFO L93 Difference]: Finished difference Result 828 states and 985 transitions. [2024-11-23 23:30:20,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:30:20,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2024-11-23 23:30:20,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:30:20,716 INFO L225 Difference]: With dead ends: 828 [2024-11-23 23:30:20,716 INFO L226 Difference]: Without dead ends: 449 [2024-11-23 23:30:20,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:30:20,717 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 219 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 [2024-11-23 23:30:20,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 219 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:30:20,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-23 23:30:20,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2024-11-23 23:30:20,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 365 states have (on average 1.1479452054794521) internal successors, (419), 369 states have internal predecessors, (419), 58 states have call successors, (58), 25 states have call predecessors, (58), 25 states have return successors, (58), 54 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-23 23:30:20,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 535 transitions. [2024-11-23 23:30:20,828 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 535 transitions. Word has length 114 [2024-11-23 23:30:20,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:30:20,829 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 535 transitions. [2024-11-23 23:30:20,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:30:20,829 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 535 transitions. [2024-11-23 23:30:20,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-23 23:30:20,830 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:30:20,830 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:30:20,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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)] Ended with exit code 0 [2024-11-23 23:30:21,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:21,031 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:30:21,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:30:21,031 INFO L85 PathProgramCache]: Analyzing trace with hash -688099440, now seen corresponding path program 1 times [2024-11-23 23:30:21,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:30:21,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449237070] [2024-11-23 23:30:21,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:30:21,031 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 [2024-11-23 23:30:21,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:30:21,033 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:30:21,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:30:21,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:30:21,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:30:21,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-23 23:30:21,468 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 [2024-11-23 23:30:21,487 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:30:21,487 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:30:21,487 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:30:21,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449237070] [2024-11-23 23:30:21,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449237070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:30:21,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:30:21,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:30:21,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142354860] [2024-11-23 23:30:21,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:30:21,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:30:21,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:30:21,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:30:21,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:30:21,489 INFO L87 Difference]: Start difference. First operand 449 states and 535 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:30:22,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:30:22,115 INFO L93 Difference]: Finished difference Result 1000 states and 1182 transitions. [2024-11-23 23:30:22,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:30:22,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2024-11-23 23:30:22,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:30:22,118 INFO L225 Difference]: With dead ends: 1000 [2024-11-23 23:30:22,118 INFO L226 Difference]: Without dead ends: 603 [2024-11-23 23:30:22,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:30:22,119 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 80 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:30:22,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 641 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:30:22,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-11-23 23:30:22,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 600. [2024-11-23 23:30:22,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 484 states have (on average 1.1301652892561984) internal successors, (547), 489 states have internal predecessors, (547), 80 states have call successors, (80), 35 states have call predecessors, (80), 35 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-23 23:30:22,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 707 transitions. [2024-11-23 23:30:22,218 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 707 transitions. Word has length 114 [2024-11-23 23:30:22,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:30:22,218 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 707 transitions. [2024-11-23 23:30:22,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:30:22,219 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 707 transitions. [2024-11-23 23:30:22,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-23 23:30:22,219 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:30:22,219 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:30:22,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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)] Ended with exit code 0 [2024-11-23 23:30:22,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:22,420 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:30:22,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:30:22,420 INFO L85 PathProgramCache]: Analyzing trace with hash -2074302834, now seen corresponding path program 1 times [2024-11-23 23:30:22,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:30:22,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767620326] [2024-11-23 23:30:22,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:30:22,421 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 [2024-11-23 23:30:22,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:30:22,423 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:30:22,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:30:22,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:30:22,752 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:30:22,822 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 31 treesize of output 26 [2024-11-23 23:30:23,009 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:30:23,009 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 37 treesize of output 17 [2024-11-23 23:30:23,064 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:30:23,064 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:30:23,065 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:30:23,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767620326] [2024-11-23 23:30:23,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767620326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:30:23,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:30:23,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:30:23,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373840235] [2024-11-23 23:30:23,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:30:23,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:30:23,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:30:23,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:30:23,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:30:23,067 INFO L87 Difference]: Start difference. First operand 600 states and 707 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:30:23,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:30:23,771 INFO L93 Difference]: Finished difference Result 1048 states and 1228 transitions. [2024-11-23 23:30:23,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:30:23,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2024-11-23 23:30:23,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:30:23,775 INFO L225 Difference]: With dead ends: 1048 [2024-11-23 23:30:23,776 INFO L226 Difference]: Without dead ends: 507 [2024-11-23 23:30:23,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:30:23,777 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 69 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:30:23,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 739 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:30:23,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-11-23 23:30:23,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 506. [2024-11-23 23:30:23,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 405 states have (on average 1.1185185185185185) internal successors, (453), 409 states have internal predecessors, (453), 70 states have call successors, (70), 30 states have call predecessors, (70), 30 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-23 23:30:23,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 593 transitions. [2024-11-23 23:30:23,865 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 593 transitions. Word has length 114 [2024-11-23 23:30:23,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:30:23,866 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 593 transitions. [2024-11-23 23:30:23,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:30:23,866 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 593 transitions. [2024-11-23 23:30:23,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-23 23:30:23,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:30:23,868 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:30:23,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:24,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:24,069 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:30:24,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:30:24,069 INFO L85 PathProgramCache]: Analyzing trace with hash 337789084, now seen corresponding path program 1 times [2024-11-23 23:30:24,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:30:24,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967919624] [2024-11-23 23:30:24,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:30:24,070 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 [2024-11-23 23:30:24,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:30:24,072 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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) [2024-11-23 23:30:24,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:30:24,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:30:24,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:30:24,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-23 23:30:24,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1141 trivial. 0 not checked. [2024-11-23 23:30:24,705 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:30:24,705 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:30:24,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967919624] [2024-11-23 23:30:24,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967919624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:30:24,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:30:24,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:30:24,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690174147] [2024-11-23 23:30:24,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:30:24,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:30:24,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:30:24,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:30:24,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:30:24,708 INFO L87 Difference]: Start difference. First operand 506 states and 593 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:30:25,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:30:25,502 INFO L93 Difference]: Finished difference Result 927 states and 1079 transitions. [2024-11-23 23:30:25,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:30:25,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 221 [2024-11-23 23:30:25,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:30:25,504 INFO L225 Difference]: With dead ends: 927 [2024-11-23 23:30:25,504 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 23:30:25,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:30:25,505 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 83 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:30:25,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 532 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:30:25,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 23:30:25,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 23:30:25,506 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) [2024-11-23 23:30:25,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 23:30:25,507 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 221 [2024-11-23 23:30:25,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:30:25,507 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:30:25,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 23:30:25,507 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 23:30:25,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 23:30:25,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:30:25,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:25,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc9ffe0-e311-419f-bbde-215075921ca8/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 [2024-11-23 23:30:25,713 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] [2024-11-23 23:30:25,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 23:32:30,289 WARN L286 SmtUtils]: Spent 2.03m on a formula simplification. DAG size of input: 191 DAG size of output: 140 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-23 23:33:51,103 WARN L286 SmtUtils]: Spent 1.35m on a formula simplification. DAG size of input: 167 DAG size of output: 131 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-23 23:36:21,136 WARN L286 SmtUtils]: Spent 2.50m on a formula simplification. DAG size of input: 157 DAG size of output: 121 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-23 23:38:38,191 WARN L286 SmtUtils]: Spent 2.28m on a formula simplification. DAG size of input: 199 DAG size of output: 143 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter)