./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.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_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/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_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/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_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/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 9d5c0cca82b2b1013f4104737c9e937fc2a95196aace035533aadd05da24a612 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:48:02,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:48:02,422 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:48:02,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:48:02,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:48:02,456 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:48:02,457 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:48:02,457 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:48:02,457 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:48:02,458 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:48:02,458 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:48:02,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:48:02,458 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:48:02,458 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:48:02,458 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:48:02,459 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:48:02,459 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:48:02,459 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:48:02,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:48:02,459 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:48:02,459 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:48:02,459 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:48:02,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:48:02,460 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:48:02,460 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:48:02,460 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:48:02,460 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:48:02,461 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:48:02,461 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:48:02,461 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:48:02,461 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:48:02,461 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:48:02,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:48:02,462 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:48:02,462 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:48:02,462 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:48:02,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:48:02,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:48:02,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:48:02,463 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:48:02,463 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:48:02,463 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:48:02,463 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:48:02,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:48:02,464 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:48:02,464 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:48:02,464 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:48:02,464 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:48:02,464 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_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/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 -> 9d5c0cca82b2b1013f4104737c9e937fc2a95196aace035533aadd05da24a612 [2024-11-24 00:48:02,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:48:02,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:48:02,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:48:02,849 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:48:02,850 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:48:02,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i [2024-11-24 00:48:06,262 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/data/b131e0a7a/c43d62c57428421389c92e19d28266b3/FLAGd945a1188 [2024-11-24 00:48:06,668 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:48:06,668 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i [2024-11-24 00:48:06,683 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/data/b131e0a7a/c43d62c57428421389c92e19d28266b3/FLAGd945a1188 [2024-11-24 00:48:06,852 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/data/b131e0a7a/c43d62c57428421389c92e19d28266b3 [2024-11-24 00:48:06,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:48:06,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:48:06,860 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:48:06,860 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:48:06,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:48:06,867 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:48:06" (1/1) ... [2024-11-24 00:48:06,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a79086f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:06, skipping insertion in model container [2024-11-24 00:48:06,872 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:48:06" (1/1) ... [2024-11-24 00:48:06,899 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:48:07,108 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_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i[916,929] [2024-11-24 00:48:07,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:48:07,209 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:48:07,223 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_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i[916,929] [2024-11-24 00:48:07,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:48:07,352 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:48:07,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:07 WrapperNode [2024-11-24 00:48:07,353 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:48:07,355 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:48:07,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:48:07,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:48:07,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:07" (1/1) ... [2024-11-24 00:48:07,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:07" (1/1) ... [2024-11-24 00:48:07,459 INFO L138 Inliner]: procedures = 29, calls = 131, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 412 [2024-11-24 00:48:07,463 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:48:07,464 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:48:07,464 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:48:07,464 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:48:07,477 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:07" (1/1) ... [2024-11-24 00:48:07,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:07" (1/1) ... [2024-11-24 00:48:07,486 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:07" (1/1) ... [2024-11-24 00:48:07,530 INFO L175 MemorySlicer]: Split 103 memory accesses to 7 slices as follows [2, 13, 18, 8, 45, 11, 6]. 44 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 2, 2, 1, 4, 1, 1]. The 15 writes are split as follows [0, 2, 2, 1, 5, 3, 2]. [2024-11-24 00:48:07,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:07" (1/1) ... [2024-11-24 00:48:07,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:07" (1/1) ... [2024-11-24 00:48:07,573 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:07" (1/1) ... [2024-11-24 00:48:07,574 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:07" (1/1) ... [2024-11-24 00:48:07,583 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:07" (1/1) ... [2024-11-24 00:48:07,586 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:07" (1/1) ... [2024-11-24 00:48:07,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:07" (1/1) ... [2024-11-24 00:48:07,593 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:48:07,594 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:48:07,595 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:48:07,595 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:48:07,596 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:07" (1/1) ... [2024-11-24 00:48:07,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:48:07,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:07,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:48:07,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:48:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:48:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:48:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:48:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 00:48:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 00:48:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 00:48:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 00:48:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 00:48:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-24 00:48:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-24 00:48:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-24 00:48:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-24 00:48:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-24 00:48:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-24 00:48:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-24 00:48:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-24 00:48:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-24 00:48:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-24 00:48:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-24 00:48:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-24 00:48:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-24 00:48:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-24 00:48:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:48:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:48:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 00:48:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 00:48:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 00:48:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 00:48:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 00:48:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-24 00:48:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-24 00:48:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-24 00:48:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-24 00:48:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-24 00:48:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-24 00:48:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-24 00:48:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:48:07,693 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:48:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:48:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:48:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:48:07,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:48:07,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:48:07,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 00:48:07,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 00:48:07,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:48:07,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:48:07,897 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:48:07,899 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:48:08,574 INFO L? ?]: Removed 100 outVars from TransFormulas that were not future-live. [2024-11-24 00:48:08,574 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:48:08,591 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:48:08,592 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:48:08,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:48:08 BoogieIcfgContainer [2024-11-24 00:48:08,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:48:08,599 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:48:08,599 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:48:08,608 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:48:08,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:48:06" (1/3) ... [2024-11-24 00:48:08,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de02585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:48:08, skipping insertion in model container [2024-11-24 00:48:08,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:07" (2/3) ... [2024-11-24 00:48:08,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de02585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:48:08, skipping insertion in model container [2024-11-24 00:48:08,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:48:08" (3/3) ... [2024-11-24 00:48:08,611 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-79.i [2024-11-24 00:48:08,631 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:48:08,633 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-79.i that has 2 procedures, 95 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:48:08,709 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:48:08,725 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;@15dd4066, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:48:08,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:48:08,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 82 states have internal predecessors, (116), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:48:08,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 00:48:08,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:08,743 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:08,743 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:08,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:08,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2025508539, now seen corresponding path program 1 times [2024-11-24 00:48:08,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:08,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4165727] [2024-11-24 00:48:08,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:08,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:09,205 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-24 00:48:09,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:09,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4165727] [2024-11-24 00:48:09,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4165727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:09,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503503123] [2024-11-24 00:48:09,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:09,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:09,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:09,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:09,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:48:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:09,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:48:09,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:09,549 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-24 00:48:09,549 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:48:09,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503503123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:09,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:48:09,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:48:09,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469731453] [2024-11-24 00:48:09,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:09,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:48:09,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:09,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:48:09,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:48:09,587 INFO L87 Difference]: Start difference. First operand has 95 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 82 states have internal predecessors, (116), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:48:09,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:09,624 INFO L93 Difference]: Finished difference Result 183 states and 281 transitions. [2024-11-24 00:48:09,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:48:09,626 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2024-11-24 00:48:09,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:09,632 INFO L225 Difference]: With dead ends: 183 [2024-11-24 00:48:09,632 INFO L226 Difference]: Without dead ends: 91 [2024-11-24 00:48:09,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:48:09,639 INFO L435 NwaCegarLoop]: 131 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, 131 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:09,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:48:09,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-24 00:48:09,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-24 00:48:09,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:48:09,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 131 transitions. [2024-11-24 00:48:09,683 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 131 transitions. Word has length 101 [2024-11-24 00:48:09,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:09,684 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 131 transitions. [2024-11-24 00:48:09,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:48:09,685 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 131 transitions. [2024-11-24 00:48:09,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 00:48:09,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:09,691 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:09,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:48:09,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:48:09,892 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:09,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:09,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1202698245, now seen corresponding path program 1 times [2024-11-24 00:48:09,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:09,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99817359] [2024-11-24 00:48:09,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:09,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:10,249 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:10,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:10,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99817359] [2024-11-24 00:48:10,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99817359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:10,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:10,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:48:10,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139075614] [2024-11-24 00:48:10,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:10,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:48:10,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:10,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:48:10,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:10,255 INFO L87 Difference]: Start difference. First operand 91 states and 131 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:48:10,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:10,303 INFO L93 Difference]: Finished difference Result 181 states and 262 transitions. [2024-11-24 00:48:10,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:48:10,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2024-11-24 00:48:10,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:10,305 INFO L225 Difference]: With dead ends: 181 [2024-11-24 00:48:10,305 INFO L226 Difference]: Without dead ends: 93 [2024-11-24 00:48:10,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:10,307 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 376 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 [2024-11-24 00:48:10,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 376 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:48:10,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-24 00:48:10,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-24 00:48:10,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 80 states have (on average 1.3875) internal successors, (111), 80 states have internal predecessors, (111), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:48:10,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2024-11-24 00:48:10,318 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 101 [2024-11-24 00:48:10,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:10,319 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2024-11-24 00:48:10,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:48:10,320 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2024-11-24 00:48:10,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 00:48:10,323 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:10,323 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:10,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:48:10,323 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:10,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:10,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1213138105, now seen corresponding path program 1 times [2024-11-24 00:48:10,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:10,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107814713] [2024-11-24 00:48:10,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:10,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:10,779 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-24 00:48:10,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:10,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107814713] [2024-11-24 00:48:10,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107814713] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:10,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115125258] [2024-11-24 00:48:10,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:10,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:10,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:10,783 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:10,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:48:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:11,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:48:11,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:11,137 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:11,141 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:48:11,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115125258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:11,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:48:11,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-24 00:48:11,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192149698] [2024-11-24 00:48:11,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:11,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:48:11,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:11,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:48:11,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:48:11,143 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:11,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:11,234 INFO L93 Difference]: Finished difference Result 186 states and 267 transitions. [2024-11-24 00:48:11,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:48:11,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2024-11-24 00:48:11,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:11,236 INFO L225 Difference]: With dead ends: 186 [2024-11-24 00:48:11,240 INFO L226 Difference]: Without dead ends: 96 [2024-11-24 00:48:11,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:48:11,241 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 1 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:11,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 375 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:48:11,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-24 00:48:11,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 95. [2024-11-24 00:48:11,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 82 states have (on average 1.3780487804878048) internal successors, (113), 82 states have internal predecessors, (113), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:48:11,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2024-11-24 00:48:11,262 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 135 transitions. Word has length 101 [2024-11-24 00:48:11,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:11,263 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 135 transitions. [2024-11-24 00:48:11,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:11,263 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 135 transitions. [2024-11-24 00:48:11,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 00:48:11,265 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:11,265 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:11,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:48:11,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:11,470 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:11,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:11,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1211291063, now seen corresponding path program 1 times [2024-11-24 00:48:11,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:11,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296134309] [2024-11-24 00:48:11,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:11,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:11,830 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-24 00:48:11,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:11,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296134309] [2024-11-24 00:48:11,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296134309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:11,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914541122] [2024-11-24 00:48:11,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:11,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:11,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:11,836 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:11,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:48:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:12,097 INFO L256 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:48:12,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:12,152 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:48:12,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914541122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:12,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:48:12,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-24 00:48:12,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487790012] [2024-11-24 00:48:12,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:12,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:48:12,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:12,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:48:12,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:48:12,155 INFO L87 Difference]: Start difference. First operand 95 states and 135 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:12,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:12,189 INFO L93 Difference]: Finished difference Result 189 states and 270 transitions. [2024-11-24 00:48:12,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:48:12,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2024-11-24 00:48:12,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:12,191 INFO L225 Difference]: With dead ends: 189 [2024-11-24 00:48:12,191 INFO L226 Difference]: Without dead ends: 97 [2024-11-24 00:48:12,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:48:12,193 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 376 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 [2024-11-24 00:48:12,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 376 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:48:12,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-24 00:48:12,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-24 00:48:12,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 84 states have (on average 1.369047619047619) internal successors, (115), 84 states have internal predecessors, (115), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:48:12,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 137 transitions. [2024-11-24 00:48:12,204 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 137 transitions. Word has length 101 [2024-11-24 00:48:12,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:12,204 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 137 transitions. [2024-11-24 00:48:12,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:12,205 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 137 transitions. [2024-11-24 00:48:12,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:48:12,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:12,207 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:12,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:48:12,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:12,408 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:12,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:12,408 INFO L85 PathProgramCache]: Analyzing trace with hash -2064880860, now seen corresponding path program 1 times [2024-11-24 00:48:12,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:12,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255533279] [2024-11-24 00:48:12,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:12,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:12,913 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:12,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:12,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255533279] [2024-11-24 00:48:12,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255533279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:12,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:12,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:48:12,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793847480] [2024-11-24 00:48:12,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:12,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:48:12,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:12,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:48:12,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:48:12,918 INFO L87 Difference]: Start difference. First operand 97 states and 137 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:13,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:13,123 INFO L93 Difference]: Finished difference Result 275 states and 389 transitions. [2024-11-24 00:48:13,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:48:13,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-24 00:48:13,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:13,126 INFO L225 Difference]: With dead ends: 275 [2024-11-24 00:48:13,127 INFO L226 Difference]: Without dead ends: 181 [2024-11-24 00:48:13,130 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 [2024-11-24 00:48:13,131 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 111 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:13,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 747 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:48:13,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-24 00:48:13,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 99. [2024-11-24 00:48:13,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 86 states have (on average 1.3604651162790697) internal successors, (117), 86 states have internal predecessors, (117), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:48:13,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 139 transitions. [2024-11-24 00:48:13,158 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 139 transitions. Word has length 103 [2024-11-24 00:48:13,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:13,159 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 139 transitions. [2024-11-24 00:48:13,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:13,159 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 139 transitions. [2024-11-24 00:48:13,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:48:13,161 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:13,163 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:13,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:48:13,164 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:13,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:13,164 INFO L85 PathProgramCache]: Analyzing trace with hash 261437402, now seen corresponding path program 1 times [2024-11-24 00:48:13,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:13,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096280414] [2024-11-24 00:48:13,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:13,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:15,093 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:15,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:15,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096280414] [2024-11-24 00:48:15,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096280414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:15,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:15,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:48:15,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137953539] [2024-11-24 00:48:15,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:15,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:48:15,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:15,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:48:15,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:48:15,095 INFO L87 Difference]: Start difference. First operand 99 states and 139 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:48:16,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:16,843 INFO L93 Difference]: Finished difference Result 658 states and 921 transitions. [2024-11-24 00:48:16,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-24 00:48:16,844 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-11-24 00:48:16,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:16,848 INFO L225 Difference]: With dead ends: 658 [2024-11-24 00:48:16,848 INFO L226 Difference]: Without dead ends: 562 [2024-11-24 00:48:16,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2024-11-24 00:48:16,851 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 869 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:16,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 1631 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:48:16,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-24 00:48:16,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 363. [2024-11-24 00:48:16,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 318 states have (on average 1.3742138364779874) internal successors, (437), 320 states have internal predecessors, (437), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 00:48:16,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 517 transitions. [2024-11-24 00:48:16,897 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 517 transitions. Word has length 104 [2024-11-24 00:48:16,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:16,898 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 517 transitions. [2024-11-24 00:48:16,898 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:48:16,898 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 517 transitions. [2024-11-24 00:48:16,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:48:16,900 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:16,900 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:16,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:48:16,900 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:16,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:16,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1039852224, now seen corresponding path program 1 times [2024-11-24 00:48:16,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:16,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154642099] [2024-11-24 00:48:16,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:16,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:18,401 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:18,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:18,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154642099] [2024-11-24 00:48:18,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154642099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:18,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:18,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:48:18,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711395965] [2024-11-24 00:48:18,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:18,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:48:18,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:18,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:48:18,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:48:18,403 INFO L87 Difference]: Start difference. First operand 363 states and 517 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:48:19,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:19,411 INFO L93 Difference]: Finished difference Result 1015 states and 1440 transitions. [2024-11-24 00:48:19,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:48:19,413 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 105 [2024-11-24 00:48:19,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:19,420 INFO L225 Difference]: With dead ends: 1015 [2024-11-24 00:48:19,421 INFO L226 Difference]: Without dead ends: 655 [2024-11-24 00:48:19,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:48:19,426 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 201 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:19,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 868 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:48:19,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-24 00:48:19,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 363. [2024-11-24 00:48:19,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 318 states have (on average 1.3742138364779874) internal successors, (437), 320 states have internal predecessors, (437), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 00:48:19,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 517 transitions. [2024-11-24 00:48:19,513 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 517 transitions. Word has length 105 [2024-11-24 00:48:19,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:19,513 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 517 transitions. [2024-11-24 00:48:19,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:48:19,514 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 517 transitions. [2024-11-24 00:48:19,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:48:19,517 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:19,517 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:19,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:48:19,520 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:19,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:19,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1245149780, now seen corresponding path program 1 times [2024-11-24 00:48:19,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:19,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492220388] [2024-11-24 00:48:19,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:19,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:19,923 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:19,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:19,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492220388] [2024-11-24 00:48:19,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492220388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:19,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:19,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:48:19,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116489263] [2024-11-24 00:48:19,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:19,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:48:19,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:19,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:48:19,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:48:19,926 INFO L87 Difference]: Start difference. First operand 363 states and 517 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:20,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:20,220 INFO L93 Difference]: Finished difference Result 1041 states and 1477 transitions. [2024-11-24 00:48:20,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:48:20,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-24 00:48:20,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:20,226 INFO L225 Difference]: With dead ends: 1041 [2024-11-24 00:48:20,226 INFO L226 Difference]: Without dead ends: 681 [2024-11-24 00:48:20,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:48:20,228 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 88 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:20,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 687 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:48:20,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-11-24 00:48:20,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 675. [2024-11-24 00:48:20,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 606 states have (on average 1.3762376237623761) internal successors, (834), 612 states have internal predecessors, (834), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 00:48:20,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 954 transitions. [2024-11-24 00:48:20,328 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 954 transitions. Word has length 106 [2024-11-24 00:48:20,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:20,329 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 954 transitions. [2024-11-24 00:48:20,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:20,329 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 954 transitions. [2024-11-24 00:48:20,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:48:20,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:20,331 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:20,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:48:20,331 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:20,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:20,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1694498068, now seen corresponding path program 1 times [2024-11-24 00:48:20,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:20,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298025278] [2024-11-24 00:48:20,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:20,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:20,621 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:20,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:20,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298025278] [2024-11-24 00:48:20,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298025278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:20,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:20,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:48:20,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971691921] [2024-11-24 00:48:20,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:20,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:48:20,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:20,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:48:20,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:48:20,624 INFO L87 Difference]: Start difference. First operand 675 states and 954 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:20,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:20,917 INFO L93 Difference]: Finished difference Result 1875 states and 2640 transitions. [2024-11-24 00:48:20,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:48:20,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-24 00:48:20,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:20,927 INFO L225 Difference]: With dead ends: 1875 [2024-11-24 00:48:20,928 INFO L226 Difference]: Without dead ends: 1203 [2024-11-24 00:48:20,933 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 [2024-11-24 00:48:20,934 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 120 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:20,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 508 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:48:20,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2024-11-24 00:48:21,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 659. [2024-11-24 00:48:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 590 states have (on average 1.352542372881356) internal successors, (798), 596 states have internal predecessors, (798), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 00:48:21,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 918 transitions. [2024-11-24 00:48:21,083 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 918 transitions. Word has length 106 [2024-11-24 00:48:21,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:21,084 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 918 transitions. [2024-11-24 00:48:21,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:21,085 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 918 transitions. [2024-11-24 00:48:21,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:48:21,089 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:21,089 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:21,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:48:21,090 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:21,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:21,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1144390814, now seen corresponding path program 1 times [2024-11-24 00:48:21,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:21,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438221560] [2024-11-24 00:48:21,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:21,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:21,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:21,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438221560] [2024-11-24 00:48:21,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438221560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:21,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:21,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:48:21,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81702562] [2024-11-24 00:48:21,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:21,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:48:21,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:21,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:48:21,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:21,323 INFO L87 Difference]: Start difference. First operand 659 states and 918 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:21,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:21,428 INFO L93 Difference]: Finished difference Result 1251 states and 1745 transitions. [2024-11-24 00:48:21,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:48:21,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-24 00:48:21,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:21,434 INFO L225 Difference]: With dead ends: 1251 [2024-11-24 00:48:21,435 INFO L226 Difference]: Without dead ends: 595 [2024-11-24 00:48:21,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:21,438 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:21,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 347 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:48:21,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-11-24 00:48:21,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 591. [2024-11-24 00:48:21,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 522 states have (on average 1.3371647509578544) internal successors, (698), 528 states have internal predecessors, (698), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 00:48:21,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 818 transitions. [2024-11-24 00:48:21,522 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 818 transitions. Word has length 106 [2024-11-24 00:48:21,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:21,523 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 818 transitions. [2024-11-24 00:48:21,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:21,525 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 818 transitions. [2024-11-24 00:48:21,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:48:21,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:21,530 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:21,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:48:21,530 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:21,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:21,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1335213979, now seen corresponding path program 1 times [2024-11-24 00:48:21,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:21,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933191687] [2024-11-24 00:48:21,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:21,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:21,705 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:21,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:21,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933191687] [2024-11-24 00:48:21,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933191687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:21,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:21,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:48:21,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519073843] [2024-11-24 00:48:21,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:21,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:48:21,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:21,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:48:21,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:48:21,707 INFO L87 Difference]: Start difference. First operand 591 states and 818 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:22,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:22,005 INFO L93 Difference]: Finished difference Result 1473 states and 2028 transitions. [2024-11-24 00:48:22,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:48:22,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-24 00:48:22,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:22,011 INFO L225 Difference]: With dead ends: 1473 [2024-11-24 00:48:22,011 INFO L226 Difference]: Without dead ends: 885 [2024-11-24 00:48:22,013 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 [2024-11-24 00:48:22,014 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 41 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:22,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 360 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:48:22,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2024-11-24 00:48:22,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 695. [2024-11-24 00:48:22,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 626 states have (on average 1.329073482428115) internal successors, (832), 632 states have internal predecessors, (832), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 00:48:22,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 952 transitions. [2024-11-24 00:48:22,123 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 952 transitions. Word has length 107 [2024-11-24 00:48:22,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:22,124 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 952 transitions. [2024-11-24 00:48:22,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:22,124 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 952 transitions. [2024-11-24 00:48:22,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:48:22,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:22,128 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:22,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:48:22,128 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:22,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:22,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1922019993, now seen corresponding path program 1 times [2024-11-24 00:48:22,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:22,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278069963] [2024-11-24 00:48:22,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:22,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:22,561 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-24 00:48:22,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:22,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278069963] [2024-11-24 00:48:22,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278069963] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:22,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44903260] [2024-11-24 00:48:22,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:22,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:22,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:22,565 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:22,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:48:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:22,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 00:48:22,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:22,909 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 27 treesize of output 11 [2024-11-24 00:48:23,714 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:48:23,715 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 36 treesize of output 25 [2024-11-24 00:48:23,772 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:48:23,772 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 32 treesize of output 12 [2024-11-24 00:48:23,809 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 00:48:23,810 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:48:24,308 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-24 00:48:24,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44903260] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:48:24,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:48:24,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 18 [2024-11-24 00:48:24,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187700718] [2024-11-24 00:48:24,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:48:24,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:48:24,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:24,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:48:24,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:48:24,312 INFO L87 Difference]: Start difference. First operand 695 states and 952 transitions. Second operand has 18 states, 15 states have (on average 7.4) internal successors, (111), 18 states have internal predecessors, (111), 7 states have call successors, (23), 3 states have call predecessors, (23), 6 states have return successors, (23), 4 states have call predecessors, (23), 7 states have call successors, (23) [2024-11-24 00:48:25,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:25,182 INFO L93 Difference]: Finished difference Result 1240 states and 1696 transitions. [2024-11-24 00:48:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 00:48:25,183 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 7.4) internal successors, (111), 18 states have internal predecessors, (111), 7 states have call successors, (23), 3 states have call predecessors, (23), 6 states have return successors, (23), 4 states have call predecessors, (23), 7 states have call successors, (23) Word has length 107 [2024-11-24 00:48:25,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:25,187 INFO L225 Difference]: With dead ends: 1240 [2024-11-24 00:48:25,187 INFO L226 Difference]: Without dead ends: 548 [2024-11-24 00:48:25,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 202 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=219, Invalid=837, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 00:48:25,190 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 357 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:25,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 1031 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:48:25,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-11-24 00:48:25,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 203. [2024-11-24 00:48:25,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 181 states have (on average 1.281767955801105) internal successors, (232), 182 states have internal predecessors, (232), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:48:25,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 264 transitions. [2024-11-24 00:48:25,228 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 264 transitions. Word has length 107 [2024-11-24 00:48:25,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:25,228 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 264 transitions. [2024-11-24 00:48:25,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 7.4) internal successors, (111), 18 states have internal predecessors, (111), 7 states have call successors, (23), 3 states have call predecessors, (23), 6 states have return successors, (23), 4 states have call predecessors, (23), 7 states have call successors, (23) [2024-11-24 00:48:25,229 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 264 transitions. [2024-11-24 00:48:25,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:48:25,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:25,231 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:25,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 00:48:25,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-24 00:48:25,435 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:25,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:25,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2122612556, now seen corresponding path program 1 times [2024-11-24 00:48:25,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:25,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735991751] [2024-11-24 00:48:25,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:25,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:48:25,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1643547299] [2024-11-24 00:48:25,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:25,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:25,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:25,538 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:25,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:48:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:25,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:48:25,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:25,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:48:25,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:48:25,946 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 35 treesize of output 19 [2024-11-24 00:48:26,024 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 25 treesize of output 13 [2024-11-24 00:48:26,097 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:26,098 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:48:26,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:26,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735991751] [2024-11-24 00:48:26,099 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:48:26,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643547299] [2024-11-24 00:48:26,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643547299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:26,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:26,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:48:26,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863660722] [2024-11-24 00:48:26,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:26,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:48:26,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:26,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:48:26,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:48:26,101 INFO L87 Difference]: Start difference. First operand 203 states and 264 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:26,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:26,655 INFO L93 Difference]: Finished difference Result 482 states and 627 transitions. [2024-11-24 00:48:26,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:48:26,655 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-11-24 00:48:26,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:26,657 INFO L225 Difference]: With dead ends: 482 [2024-11-24 00:48:26,657 INFO L226 Difference]: Without dead ends: 282 [2024-11-24 00:48:26,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:48:26,658 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 40 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:26,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 900 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:48:26,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-24 00:48:26,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 237. [2024-11-24 00:48:26,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 215 states have (on average 1.2744186046511627) internal successors, (274), 216 states have internal predecessors, (274), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:48:26,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 306 transitions. [2024-11-24 00:48:26,686 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 306 transitions. Word has length 110 [2024-11-24 00:48:26,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:26,687 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 306 transitions. [2024-11-24 00:48:26,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:26,687 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 306 transitions. [2024-11-24 00:48:26,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:48:26,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:26,689 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:26,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 00:48:26,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-24 00:48:26,890 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:26,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:26,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1372957360, now seen corresponding path program 1 times [2024-11-24 00:48:26,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:26,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110747886] [2024-11-24 00:48:26,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:26,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:48:26,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [745230585] [2024-11-24 00:48:26,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:26,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:26,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:26,961 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:26,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:48:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:27,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 00:48:27,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:27,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:48:27,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:48:27,399 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:48:27,399 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 37 treesize of output 24 [2024-11-24 00:48:27,463 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:48:27,463 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 34 treesize of output 14 [2024-11-24 00:48:27,575 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:27,576 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:48:27,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:27,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110747886] [2024-11-24 00:48:27,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:48:27,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745230585] [2024-11-24 00:48:27,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745230585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:27,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:27,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:48:27,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795514341] [2024-11-24 00:48:27,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:27,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:48:27,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:27,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:48:27,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:48:27,578 INFO L87 Difference]: Start difference. First operand 237 states and 306 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:28,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:28,255 INFO L93 Difference]: Finished difference Result 558 states and 725 transitions. [2024-11-24 00:48:28,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:48:28,256 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-11-24 00:48:28,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:28,258 INFO L225 Difference]: With dead ends: 558 [2024-11-24 00:48:28,259 INFO L226 Difference]: Without dead ends: 324 [2024-11-24 00:48:28,259 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:48:28,260 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 45 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:28,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 873 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:48:28,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-24 00:48:28,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 265. [2024-11-24 00:48:28,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 243 states have (on average 1.2757201646090535) internal successors, (310), 244 states have internal predecessors, (310), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:48:28,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 342 transitions. [2024-11-24 00:48:28,308 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 342 transitions. Word has length 110 [2024-11-24 00:48:28,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:28,308 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 342 transitions. [2024-11-24 00:48:28,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:28,309 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 342 transitions. [2024-11-24 00:48:28,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:48:28,311 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:28,311 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:28,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-24 00:48:28,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-24 00:48:28,512 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:28,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:28,513 INFO L85 PathProgramCache]: Analyzing trace with hash 786151346, now seen corresponding path program 1 times [2024-11-24 00:48:28,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:28,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663870179] [2024-11-24 00:48:28,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:28,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:29,040 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:29,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:29,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663870179] [2024-11-24 00:48:29,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663870179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:29,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:29,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:48:29,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883175494] [2024-11-24 00:48:29,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:29,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:48:29,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:29,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:48:29,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:48:29,043 INFO L87 Difference]: Start difference. First operand 265 states and 342 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:29,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:29,292 INFO L93 Difference]: Finished difference Result 582 states and 753 transitions. [2024-11-24 00:48:29,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:48:29,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-11-24 00:48:29,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:29,295 INFO L225 Difference]: With dead ends: 582 [2024-11-24 00:48:29,295 INFO L226 Difference]: Without dead ends: 320 [2024-11-24 00:48:29,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:48:29,300 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 39 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:29,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 471 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:48:29,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-24 00:48:29,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 265. [2024-11-24 00:48:29,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 243 states have (on average 1.2592592592592593) internal successors, (306), 244 states have internal predecessors, (306), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:48:29,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 338 transitions. [2024-11-24 00:48:29,336 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 338 transitions. Word has length 110 [2024-11-24 00:48:29,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:29,336 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 338 transitions. [2024-11-24 00:48:29,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:29,337 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 338 transitions. [2024-11-24 00:48:29,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:48:29,338 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:29,338 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:29,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:48:29,339 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:29,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:29,340 INFO L85 PathProgramCache]: Analyzing trace with hash -2042884438, now seen corresponding path program 1 times [2024-11-24 00:48:29,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:29,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721058229] [2024-11-24 00:48:29,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:29,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:48:29,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [565458526] [2024-11-24 00:48:29,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:29,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:29,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:29,407 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:29,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 00:48:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:29,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 00:48:29,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:29,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:48:29,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:48:30,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2024-11-24 00:48:30,106 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 27 treesize of output 15 [2024-11-24 00:48:30,195 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:30,197 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:48:30,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:30,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721058229] [2024-11-24 00:48:30,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:48:30,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565458526] [2024-11-24 00:48:30,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565458526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:30,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:30,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:48:30,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182448409] [2024-11-24 00:48:30,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:30,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:48:30,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:30,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:48:30,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:48:30,200 INFO L87 Difference]: Start difference. First operand 265 states and 338 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:30,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:30,659 INFO L93 Difference]: Finished difference Result 568 states and 724 transitions. [2024-11-24 00:48:30,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:48:30,660 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-11-24 00:48:30,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:30,664 INFO L225 Difference]: With dead ends: 568 [2024-11-24 00:48:30,664 INFO L226 Difference]: Without dead ends: 306 [2024-11-24 00:48:30,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:48:30,666 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 41 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:30,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 574 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:48:30,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-24 00:48:30,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 281. [2024-11-24 00:48:30,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 259 states have (on average 1.2548262548262548) internal successors, (325), 260 states have internal predecessors, (325), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:48:30,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 357 transitions. [2024-11-24 00:48:30,700 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 357 transitions. Word has length 111 [2024-11-24 00:48:30,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:30,700 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 357 transitions. [2024-11-24 00:48:30,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:30,701 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 357 transitions. [2024-11-24 00:48:30,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:48:30,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:30,702 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:30,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 00:48:30,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-24 00:48:30,906 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:30,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:30,907 INFO L85 PathProgramCache]: Analyzing trace with hash -820772203, now seen corresponding path program 1 times [2024-11-24 00:48:30,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:30,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846007503] [2024-11-24 00:48:30,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:30,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:30,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:31,911 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:31,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:31,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846007503] [2024-11-24 00:48:31,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846007503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:31,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:31,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:48:31,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250848714] [2024-11-24 00:48:31,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:31,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:48:31,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:31,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:48:31,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:48:31,914 INFO L87 Difference]: Start difference. First operand 281 states and 357 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:48:32,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:32,069 INFO L93 Difference]: Finished difference Result 289 states and 366 transitions. [2024-11-24 00:48:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:48:32,070 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-24 00:48:32,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:32,072 INFO L225 Difference]: With dead ends: 289 [2024-11-24 00:48:32,072 INFO L226 Difference]: Without dead ends: 287 [2024-11-24 00:48:32,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:48:32,073 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 26 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:32,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 694 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:48:32,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-24 00:48:32,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2024-11-24 00:48:32,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 265 states have (on average 1.2490566037735849) internal successors, (331), 266 states have internal predecessors, (331), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:48:32,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 363 transitions. [2024-11-24 00:48:32,102 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 363 transitions. Word has length 111 [2024-11-24 00:48:32,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:32,103 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 363 transitions. [2024-11-24 00:48:32,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:48:32,103 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 363 transitions. [2024-11-24 00:48:32,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:48:32,105 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:32,105 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:32,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:48:32,105 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:32,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:32,106 INFO L85 PathProgramCache]: Analyzing trace with hash -818925161, now seen corresponding path program 1 times [2024-11-24 00:48:32,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:32,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392374599] [2024-11-24 00:48:32,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:32,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:32,286 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-24 00:48:32,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:32,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392374599] [2024-11-24 00:48:32,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392374599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:32,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068852479] [2024-11-24 00:48:32,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:32,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:32,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:32,290 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:32,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 00:48:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:32,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:48:32,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:32,594 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:32,595 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:48:32,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068852479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:32,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:48:32,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-24 00:48:32,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549822919] [2024-11-24 00:48:32,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:32,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:48:32,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:32,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:48:32,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:48:32,598 INFO L87 Difference]: Start difference. First operand 287 states and 363 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:32,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:32,655 INFO L93 Difference]: Finished difference Result 577 states and 731 transitions. [2024-11-24 00:48:32,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:48:32,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-11-24 00:48:32,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:32,660 INFO L225 Difference]: With dead ends: 577 [2024-11-24 00:48:32,660 INFO L226 Difference]: Without dead ends: 293 [2024-11-24 00:48:32,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:48:32,661 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:32,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 453 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:48:32,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-24 00:48:32,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-11-24 00:48:32,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 271 states have (on average 1.2435424354243543) internal successors, (337), 272 states have internal predecessors, (337), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:48:32,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 369 transitions. [2024-11-24 00:48:32,694 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 369 transitions. Word has length 111 [2024-11-24 00:48:32,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:32,695 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 369 transitions. [2024-11-24 00:48:32,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:32,695 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 369 transitions. [2024-11-24 00:48:32,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:48:32,697 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:32,697 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:32,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-24 00:48:32,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-24 00:48:32,901 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:32,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:32,902 INFO L85 PathProgramCache]: Analyzing trace with hash -873593326, now seen corresponding path program 1 times [2024-11-24 00:48:32,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:32,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855444643] [2024-11-24 00:48:32,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:32,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:33,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:33,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855444643] [2024-11-24 00:48:33,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855444643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:33,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:33,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:48:33,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901974795] [2024-11-24 00:48:33,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:33,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:48:33,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:33,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:48:33,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:48:33,231 INFO L87 Difference]: Start difference. First operand 293 states and 369 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:33,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:33,454 INFO L93 Difference]: Finished difference Result 652 states and 819 transitions. [2024-11-24 00:48:33,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:48:33,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-11-24 00:48:33,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:33,458 INFO L225 Difference]: With dead ends: 652 [2024-11-24 00:48:33,458 INFO L226 Difference]: Without dead ends: 362 [2024-11-24 00:48:33,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:48:33,459 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 34 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:33,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 369 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:48:33,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-24 00:48:33,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 308. [2024-11-24 00:48:33,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 286 states have (on average 1.2272727272727273) internal successors, (351), 287 states have internal predecessors, (351), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:48:33,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 383 transitions. [2024-11-24 00:48:33,492 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 383 transitions. Word has length 111 [2024-11-24 00:48:33,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:33,493 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 383 transitions. [2024-11-24 00:48:33,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:33,493 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 383 transitions. [2024-11-24 00:48:33,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:48:33,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:33,495 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:33,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:48:33,495 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:33,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:33,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1801929114, now seen corresponding path program 1 times [2024-11-24 00:48:33,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:33,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700543146] [2024-11-24 00:48:33,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:33,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:33,774 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:33,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:33,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700543146] [2024-11-24 00:48:33,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700543146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:33,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:33,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:48:33,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36618382] [2024-11-24 00:48:33,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:33,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:48:33,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:33,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:48:33,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:48:33,777 INFO L87 Difference]: Start difference. First operand 308 states and 383 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:34,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:34,019 INFO L93 Difference]: Finished difference Result 667 states and 829 transitions. [2024-11-24 00:48:34,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:48:34,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-11-24 00:48:34,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:34,022 INFO L225 Difference]: With dead ends: 667 [2024-11-24 00:48:34,022 INFO L226 Difference]: Without dead ends: 362 [2024-11-24 00:48:34,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:48:34,024 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 33 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:34,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 467 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:48:34,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-24 00:48:34,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 308. [2024-11-24 00:48:34,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 286 states have (on average 1.2202797202797202) internal successors, (349), 287 states have internal predecessors, (349), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:48:34,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 381 transitions. [2024-11-24 00:48:34,057 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 381 transitions. Word has length 111 [2024-11-24 00:48:34,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:34,058 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 381 transitions. [2024-11-24 00:48:34,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:34,058 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 381 transitions. [2024-11-24 00:48:34,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:48:34,060 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:34,060 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:34,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:48:34,061 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:34,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:34,061 INFO L85 PathProgramCache]: Analyzing trace with hash -785653014, now seen corresponding path program 1 times [2024-11-24 00:48:34,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:34,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783053290] [2024-11-24 00:48:34,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:34,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:48:34,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1015655550] [2024-11-24 00:48:34,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:34,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:34,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:34,119 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:34,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 00:48:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:34,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-24 00:48:34,449 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:34,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:48:34,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:48:34,563 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:48:34,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2024-11-24 00:48:34,629 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:48:34,630 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 36 treesize of output 16 [2024-11-24 00:48:34,687 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:34,687 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:48:34,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:34,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783053290] [2024-11-24 00:48:34,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:48:34,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015655550] [2024-11-24 00:48:34,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015655550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:34,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:34,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:48:34,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212040541] [2024-11-24 00:48:34,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:34,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:48:34,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:34,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:48:34,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:48:34,689 INFO L87 Difference]: Start difference. First operand 308 states and 381 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:35,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:35,163 INFO L93 Difference]: Finished difference Result 636 states and 786 transitions. [2024-11-24 00:48:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:48:35,164 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-11-24 00:48:35,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:35,166 INFO L225 Difference]: With dead ends: 636 [2024-11-24 00:48:35,167 INFO L226 Difference]: Without dead ends: 331 [2024-11-24 00:48:35,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:48:35,169 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 29 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:35,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 737 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:48:35,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-24 00:48:35,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 306. [2024-11-24 00:48:35,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 284 states have (on average 1.221830985915493) internal successors, (347), 285 states have internal predecessors, (347), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:48:35,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 379 transitions. [2024-11-24 00:48:35,230 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 379 transitions. Word has length 111 [2024-11-24 00:48:35,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:35,231 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 379 transitions. [2024-11-24 00:48:35,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:35,231 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 379 transitions. [2024-11-24 00:48:35,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-24 00:48:35,233 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:35,233 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:35,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-24 00:48:35,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:35,437 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:35,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:35,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1636201285, now seen corresponding path program 1 times [2024-11-24 00:48:35,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:35,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498073997] [2024-11-24 00:48:35,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:35,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:48:35,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [815299292] [2024-11-24 00:48:35,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:35,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:35,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:35,504 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:35,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 00:48:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:48:35,882 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:48:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:48:36,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:48:36,206 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:48:36,207 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:48:36,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-24 00:48:36,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:36,413 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] [2024-11-24 00:48:36,521 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:48:36,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:48:36 BoogieIcfgContainer [2024-11-24 00:48:36,525 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:48:36,526 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:48:36,526 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:48:36,526 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:48:36,527 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:48:08" (3/4) ... [2024-11-24 00:48:36,530 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:48:36,531 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:48:36,532 INFO L158 Benchmark]: Toolchain (without parser) took 29675.15ms. Allocated memory was 142.6MB in the beginning and 604.0MB in the end (delta: 461.4MB). Free memory was 105.1MB in the beginning and 505.7MB in the end (delta: -400.5MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2024-11-24 00:48:36,532 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:48:36,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.77ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 90.7MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:48:36,533 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.68ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 87.5MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:48:36,533 INFO L158 Benchmark]: Boogie Preprocessor took 129.94ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 83.6MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:48:36,533 INFO L158 Benchmark]: RCFGBuilder took 998.03ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 54.6MB in the end (delta: 29.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-24 00:48:36,533 INFO L158 Benchmark]: TraceAbstraction took 27926.20ms. Allocated memory was 142.6MB in the beginning and 604.0MB in the end (delta: 461.4MB). Free memory was 53.9MB in the beginning and 505.8MB in the end (delta: -451.9MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-11-24 00:48:36,534 INFO L158 Benchmark]: Witness Printer took 5.22ms. Allocated memory is still 604.0MB. Free memory was 505.8MB in the beginning and 505.7MB in the end (delta: 161.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:48:36,536 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 493.77ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 90.7MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.68ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 87.5MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 129.94ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 83.6MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 998.03ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 54.6MB in the end (delta: 29.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 27926.20ms. Allocated memory was 142.6MB in the beginning and 604.0MB in the end (delta: 461.4MB). Free memory was 53.9MB in the beginning and 505.8MB in the end (delta: -451.9MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Witness Printer took 5.22ms. Allocated memory is still 604.0MB. Free memory was 505.8MB in the beginning and 505.7MB in the end (delta: 161.4kB). 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 80, overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someBinaryDOUBLEComparisonOperation at line 78, overapproximation of someBinaryDOUBLEComparisonOperation at line 55, overapproximation of someBinaryDOUBLEComparisonOperation at line 78, overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of someBinaryDOUBLEComparisonOperation at line 76, overapproximation of someBinaryDOUBLEComparisonOperation at line 95, overapproximation of someBinaryDOUBLEComparisonOperation at line 76. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L25-L27] double double_Array_0[2] = { 1.6, 32.5 }; [L25-L27] double double_Array_0[2] = { 1.6, 32.5 }; [L25-L27] double double_Array_0[2] = { 1.6, 32.5 }; [L28-L30] float float_Array_0[1] = { 15.5 }; [L28-L30] float float_Array_0[1] = { 15.5 }; [L31-L33] signed char signed_char_Array_0[2][2] = { {64, 0}, {64, -16} }; [L31-L33] signed char signed_char_Array_0[2][2] = { {64, 0}, {64, -16} }; [L31-L33] signed char signed_char_Array_0[2][2] = { {64, 0}, {64, -16} }; [L31-L33] signed char signed_char_Array_0[2][2] = { {64, 0}, {64, -16} }; [L31-L33] signed char signed_char_Array_0[2][2] = { {64, 0}, {64, -16} }; [L34-L36] signed long int signed_long_int_Array_0[1] = { -64 }; [L34-L36] signed long int signed_long_int_Array_0[1] = { -64 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[1] = { 32 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[1] = { 32 }; [L40] unsigned short int last_1_unsigned_short_int_Array_0_0_ = 32; VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=0, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L99] isInitial = 1 [L100] FCALL initially() [L102] CALL updateLastVariables() [L92] EXPR unsigned_short_int_Array_0[0] [L92] last_1_unsigned_short_int_Array_0_0_ = unsigned_short_int_Array_0[0] [L102] RET updateLastVariables() [L103] CALL updateVariables() [L72] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L73] EXPR BOOL_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L73] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L73] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L74] EXPR BOOL_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L75] double_Array_0[0] = __VERIFIER_nondet_double() [L76] EXPR double_Array_0[0] [L76] EXPR double_Array_0[0] >= -922337.2036854776000e+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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] EXPR double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F [L76] EXPR double_Array_0[0] [L76] EXPR double_Array_0[0] >= -922337.2036854776000e+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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] EXPR (double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] EXPR (double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] CALL assume_abort_if_not((double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] RET assume_abort_if_not((double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L77] double_Array_0[1] = __VERIFIER_nondet_double() [L78] EXPR double_Array_0[1] [L78] EXPR double_Array_0[1] >= -922337.2036854776000e+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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] EXPR double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F [L78] EXPR double_Array_0[1] [L78] EXPR double_Array_0[1] >= -922337.2036854776000e+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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] EXPR (double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854776000e+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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] EXPR (double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854776000e+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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] CALL assume_abort_if_not((double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854776000e+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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] RET assume_abort_if_not((double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854776000e+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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L79] float_Array_0[0] = __VERIFIER_nondet_float() [L80] EXPR float_Array_0[0] [L80] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F [L80] EXPR float_Array_0[0] [L80] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] EXPR (float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] EXPR (float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] CALL assume_abort_if_not((float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] RET assume_abort_if_not((float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L81] signed_char_Array_0[0][0] = __VERIFIER_nondet_char() [L82] EXPR signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] CALL assume_abort_if_not(signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] RET assume_abort_if_not(signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] EXPR signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] CALL assume_abort_if_not(signed_char_Array_0[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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] RET assume_abort_if_not(signed_char_Array_0[0][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L84] signed_char_Array_0[1][0] = __VERIFIER_nondet_char() [L85] EXPR signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L85] CALL assume_abort_if_not(signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L85] RET assume_abort_if_not(signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] EXPR signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] CALL assume_abort_if_not(signed_char_Array_0[1][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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] RET assume_abort_if_not(signed_char_Array_0[1][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L87] signed_char_Array_0[0][1] = __VERIFIER_nondet_char() [L88] EXPR signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L88] CALL assume_abort_if_not(signed_char_Array_0[0][1] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L88] RET assume_abort_if_not(signed_char_Array_0[0][1] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] CALL assume_abort_if_not(signed_char_Array_0[0][1] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] RET assume_abort_if_not(signed_char_Array_0[0][1] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L103] RET updateVariables() [L104] CALL step() [L44] EXPR signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L44] EXPR ((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_) [L44] EXPR ((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L44] signed long int stepLocal_0 = (((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_)); [L45] EXPR signed_char_Array_0[1][0] [L45] EXPR signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L45] EXPR last_1_unsigned_short_int_Array_0_0_ >> signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, stepLocal_0=32, unsigned_short_int_Array_0={9:0}] [L45] COND TRUE stepLocal_0 <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1])) [L46] EXPR double_Array_0[1] [L46] EXPR double_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L46] COND FALSE !((- double_Array_0[1]) >= double_Array_0[0]) [L49] EXPR signed_char_Array_0[0][0] [L49] signed_long_int_Array_0[0] = signed_char_Array_0[0][0] [L54] EXPR signed_char_Array_0[0][0] [L54] EXPR signed_long_int_Array_0[0] [L54] signed long int stepLocal_1 = signed_char_Array_0[0][0] + signed_long_int_Array_0[0]; [L55] EXPR float_Array_0[0] [L55] EXPR double_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L55] COND FALSE !(float_Array_0[0] < double_Array_0[0]) [L62] EXPR BOOL_unsigned_char_Array_0[1] [L62] BOOL_unsigned_char_Array_0[0] = BOOL_unsigned_char_Array_0[1] [L63] EXPR BOOL_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L63] COND TRUE ! BOOL_unsigned_char_Array_0[0] [L64] EXPR BOOL_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L64] COND TRUE ! BOOL_unsigned_char_Array_0[0] [L65] EXPR signed_char_Array_0[0][1] [L65] signed_char_Array_0[1][1] = (signed_char_Array_0[0][1] + -32) [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR BOOL_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1 [L95] EXPR BOOL_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16)))))) [L95] EXPR signed_char_Array_0[1][1] [L95] EXPR signed_char_Array_0[0][1] [L95] EXPR (! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16)))))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) [L95] EXPR signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_) [L95] EXPR ((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR signed_char_Array_0[1][0] [L95] EXPR signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR last_1_unsigned_short_int_Array_0_0_ >> signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])) [L95] EXPR double_Array_0[1] [L95] EXPR double_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])) [L95] EXPR signed_long_int_Array_0[0] [L95] EXPR signed_char_Array_0[1][0] [L95] EXPR ((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])))) && ((float_Array_0[0] < double_Array_0[0]) ? (((signed_char_Array_0[0][0] + signed_long_int_Array_0[0]) <= (~ (signed_long_int_Array_0[0] % -32))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0]))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])))) && ((float_Array_0[0] < double_Array_0[0]) ? (((signed_char_Array_0[0][0] + signed_long_int_Array_0[0]) <= (~ (signed_long_int_Array_0[0] % -32))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0]))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])))) && ((float_Array_0[0] < double_Array_0[0]) ? (((signed_char_Array_0[0][0] + signed_long_int_Array_0[0]) <= (~ (signed_long_int_Array_0[0] % -32))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0]))) : 1)) && (BOOL_unsigned_char_Array_0[0] == ((unsigned char) BOOL_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])))) && ((float_Array_0[0] < double_Array_0[0]) ? (((signed_char_Array_0[0][0] + signed_long_int_Array_0[0]) <= (~ (signed_long_int_Array_0[0] % -32))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0]))) : 1)) && (BOOL_unsigned_char_Array_0[0] == ((unsigned char) BOOL_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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95-L96] return ((((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])))) && ((float_Array_0[0] < double_Array_0[0]) ? (((signed_char_Array_0[0][0] + signed_long_int_Array_0[0]) <= (~ (signed_long_int_Array_0[0] % -32))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0]))) : 1)) && (BOOL_unsigned_char_Array_0[0] == ((unsigned char) BOOL_unsigned_char_Array_0[1])) ; [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, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.7s, OverallIterations: 22, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2079 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2075 mSDsluCounter, 12975 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10134 mSDsCounter, 230 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3540 IncrementalHoareTripleChecker+Invalid, 3770 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 230 mSolverCounterUnsat, 2841 mSDtfsCounter, 3540 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1246 GetRequests, 1074 SyntacticMatches, 2 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=695occurred in iteration=11, InterpolantAutomatonStates: 165, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 21 MinimizatonAttempts, 1980 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 3431 NumberOfCodeBlocks, 3431 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 2845 ConstructedInterpolants, 0 QuantifiedInterpolants, 8608 SizeOfPredicates, 22 NumberOfNonLiveVariables, 3569 ConjunctsInSsa, 133 ConjunctsInUnsatCore, 27 InterpolantComputations, 20 PerfectInterpolantSequences, 5749/5940 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:48:36,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/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_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/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_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/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 9d5c0cca82b2b1013f4104737c9e937fc2a95196aace035533aadd05da24a612 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:48:39,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:48:39,687 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:48:39,694 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:48:39,694 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:48:39,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:48:39,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:48:39,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:48:39,735 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:48:39,736 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:48:39,737 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:48:39,737 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:48:39,738 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:48:39,738 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:48:39,739 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:48:39,739 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:48:39,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:48:39,740 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:48:39,740 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:48:39,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:48:39,740 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:48:39,740 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:48:39,741 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:48:39,741 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:48:39,741 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:48:39,741 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:48:39,741 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:48:39,741 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:48:39,741 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:48:39,742 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:48:39,742 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:48:39,743 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:48:39,743 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:48:39,743 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:48:39,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:48:39,743 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:48:39,744 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:48:39,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:48:39,744 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:48:39,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:48:39,744 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:48:39,744 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:48:39,744 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:48:39,744 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:48:39,745 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:48:39,745 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:48:39,745 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:48:39,745 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:48:39,745 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:48:39,745 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:48:39,745 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_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/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 -> 9d5c0cca82b2b1013f4104737c9e937fc2a95196aace035533aadd05da24a612 [2024-11-24 00:48:40,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:48:40,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:48:40,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:48:40,150 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:48:40,151 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:48:40,152 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i [2024-11-24 00:48:43,555 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/data/47ee718d3/ca9680b33a2441ffb11efb37ccd728ce/FLAG7a5cc6a4c [2024-11-24 00:48:43,856 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:48:43,857 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i [2024-11-24 00:48:43,871 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/data/47ee718d3/ca9680b33a2441ffb11efb37ccd728ce/FLAG7a5cc6a4c [2024-11-24 00:48:43,900 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/data/47ee718d3/ca9680b33a2441ffb11efb37ccd728ce [2024-11-24 00:48:43,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:48:43,904 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:48:43,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:48:43,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:48:43,912 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:48:43,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:48:43" (1/1) ... [2024-11-24 00:48:43,916 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@519a13de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:43, skipping insertion in model container [2024-11-24 00:48:43,917 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:48:43" (1/1) ... [2024-11-24 00:48:43,946 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:48:44,151 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_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i[916,929] [2024-11-24 00:48:44,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:48:44,306 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:48:44,321 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_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i[916,929] [2024-11-24 00:48:44,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:48:44,417 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:48:44,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:44 WrapperNode [2024-11-24 00:48:44,417 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:48:44,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:48:44,419 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:48:44,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:48:44,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:44" (1/1) ... [2024-11-24 00:48:44,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:44" (1/1) ... [2024-11-24 00:48:44,491 INFO L138 Inliner]: procedures = 39, calls = 131, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 395 [2024-11-24 00:48:44,491 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:48:44,492 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:48:44,492 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:48:44,492 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:48:44,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:44" (1/1) ... [2024-11-24 00:48:44,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:44" (1/1) ... [2024-11-24 00:48:44,511 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:44" (1/1) ... [2024-11-24 00:48:44,538 INFO L175 MemorySlicer]: Split 103 memory accesses to 7 slices as follows [2, 13, 18, 8, 45, 11, 6]. 44 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 2, 2, 1, 4, 1, 1]. The 15 writes are split as follows [0, 2, 2, 1, 5, 3, 2]. [2024-11-24 00:48:44,538 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:44" (1/1) ... [2024-11-24 00:48:44,539 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:44" (1/1) ... [2024-11-24 00:48:44,569 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:44" (1/1) ... [2024-11-24 00:48:44,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:44" (1/1) ... [2024-11-24 00:48:44,576 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:44" (1/1) ... [2024-11-24 00:48:44,581 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:44" (1/1) ... [2024-11-24 00:48:44,584 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:44" (1/1) ... [2024-11-24 00:48:44,593 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:48:44,594 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:48:44,594 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:48:44,594 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:48:44,595 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:44" (1/1) ... [2024-11-24 00:48:44,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:48:44,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:44,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:48:44,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:48:44,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:48:44,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-24 00:48:44,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-24 00:48:44,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-24 00:48:44,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-24 00:48:44,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-24 00:48:44,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-11-24 00:48:44,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2024-11-24 00:48:44,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-24 00:48:44,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-24 00:48:44,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-24 00:48:44,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-24 00:48:44,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-24 00:48:44,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-11-24 00:48:44,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2024-11-24 00:48:44,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-24 00:48:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-24 00:48:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-24 00:48:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-24 00:48:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-24 00:48:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-24 00:48:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-11-24 00:48:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-24 00:48:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-24 00:48:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-11-24 00:48:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-11-24 00:48:44,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-11-24 00:48:44,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2024-11-24 00:48:44,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6 [2024-11-24 00:48:44,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:48:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-24 00:48:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-24 00:48:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-24 00:48:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-24 00:48:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-24 00:48:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-24 00:48:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-24 00:48:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-24 00:48:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-24 00:48:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-24 00:48:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-24 00:48:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-24 00:48:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-24 00:48:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-24 00:48:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-24 00:48:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-24 00:48:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-24 00:48:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-24 00:48:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-24 00:48:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-24 00:48:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-24 00:48:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-24 00:48:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-11-24 00:48:44,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-11-24 00:48:44,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-11-24 00:48:44,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2024-11-24 00:48:44,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2024-11-24 00:48:44,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-24 00:48:44,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-24 00:48:44,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-24 00:48:44,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-24 00:48:44,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-24 00:48:44,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-24 00:48:44,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-24 00:48:44,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-24 00:48:44,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-24 00:48:44,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-24 00:48:44,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-24 00:48:44,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-24 00:48:44,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-11-24 00:48:44,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2024-11-24 00:48:44,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-24 00:48:44,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-24 00:48:44,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-24 00:48:44,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-24 00:48:44,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-24 00:48:44,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-24 00:48:44,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-24 00:48:44,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-24 00:48:44,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-24 00:48:44,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-24 00:48:44,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-24 00:48:44,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-24 00:48:44,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-24 00:48:44,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-24 00:48:44,701 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:48:44,701 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:48:44,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:48:44,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:48:44,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-24 00:48:44,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-24 00:48:44,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-24 00:48:44,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-24 00:48:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-24 00:48:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-24 00:48:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-24 00:48:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-24 00:48:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-24 00:48:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-24 00:48:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-24 00:48:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-24 00:48:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-11-24 00:48:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2024-11-24 00:48:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-24 00:48:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-24 00:48:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-24 00:48:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-24 00:48:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-24 00:48:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-24 00:48:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-24 00:48:44,957 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:48:44,959 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:48:46,032 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2024-11-24 00:48:46,032 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:48:46,048 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:48:46,049 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:48:46,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:48:46 BoogieIcfgContainer [2024-11-24 00:48:46,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:48:46,052 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:48:46,052 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:48:46,059 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:48:46,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:48:43" (1/3) ... [2024-11-24 00:48:46,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd10fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:48:46, skipping insertion in model container [2024-11-24 00:48:46,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:44" (2/3) ... [2024-11-24 00:48:46,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd10fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:48:46, skipping insertion in model container [2024-11-24 00:48:46,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:48:46" (3/3) ... [2024-11-24 00:48:46,064 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-79.i [2024-11-24 00:48:46,082 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:48:46,083 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-79.i that has 2 procedures, 91 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:48:46,145 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:48:46,159 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;@138bf863, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:48:46,159 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:48:46,164 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 77 states have (on average 1.4285714285714286) internal successors, (110), 78 states have internal predecessors, (110), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:48:46,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 00:48:46,175 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:46,177 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:46,178 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:46,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:46,187 INFO L85 PathProgramCache]: Analyzing trace with hash 503815468, now seen corresponding path program 1 times [2024-11-24 00:48:46,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:48:46,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038023726] [2024-11-24 00:48:46,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:46,207 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:48:46,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:48:46,210 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:48:46,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-24 00:48:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:46,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:48:46,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:46,750 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-24 00:48:46,750 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:48:46,751 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:48:46,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038023726] [2024-11-24 00:48:46,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038023726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:46,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:46,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:48:46,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750141201] [2024-11-24 00:48:46,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:46,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:48:46,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:48:46,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:48:46,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:48:46,793 INFO L87 Difference]: Start difference. First operand has 91 states, 77 states have (on average 1.4285714285714286) internal successors, (110), 78 states have internal predecessors, (110), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:48:46,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:46,843 INFO L93 Difference]: Finished difference Result 175 states and 269 transitions. [2024-11-24 00:48:46,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:48:46,846 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2024-11-24 00:48:46,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:46,855 INFO L225 Difference]: With dead ends: 175 [2024-11-24 00:48:46,855 INFO L226 Difference]: Without dead ends: 87 [2024-11-24 00:48:46,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:48:46,867 INFO L435 NwaCegarLoop]: 125 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, 125 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:46,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:48:46,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-24 00:48:46,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-24 00:48:46,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 74 states have internal predecessors, (103), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:48:46,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 125 transitions. [2024-11-24 00:48:46,932 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 125 transitions. Word has length 100 [2024-11-24 00:48:46,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:46,934 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 125 transitions. [2024-11-24 00:48:46,935 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:48:46,935 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 125 transitions. [2024-11-24 00:48:46,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 00:48:46,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:46,941 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:46,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-24 00:48:47,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:48:47,143 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:47,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:47,144 INFO L85 PathProgramCache]: Analyzing trace with hash 2139841186, now seen corresponding path program 1 times [2024-11-24 00:48:47,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:48:47,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263426434] [2024-11-24 00:48:47,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:47,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:48:47,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:48:47,148 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:48:47,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-24 00:48:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:47,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:48:47,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:47,671 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-24 00:48:47,671 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:48:47,671 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:48:47,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263426434] [2024-11-24 00:48:47,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1263426434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:47,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:47,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:48:47,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867560525] [2024-11-24 00:48:47,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:47,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:48:47,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:48:47,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:48:47,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:47,675 INFO L87 Difference]: Start difference. First operand 87 states and 125 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:48:47,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:47,771 INFO L93 Difference]: Finished difference Result 173 states and 250 transitions. [2024-11-24 00:48:47,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:48:47,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2024-11-24 00:48:47,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:47,775 INFO L225 Difference]: With dead ends: 173 [2024-11-24 00:48:47,775 INFO L226 Difference]: Without dead ends: 89 [2024-11-24 00:48:47,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:47,777 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:47,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 358 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:48:47,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-24 00:48:47,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-24 00:48:47,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 76 states have (on average 1.381578947368421) internal successors, (105), 76 states have internal predecessors, (105), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:48:47,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2024-11-24 00:48:47,801 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 100 [2024-11-24 00:48:47,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:47,803 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2024-11-24 00:48:47,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:48:47,803 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2024-11-24 00:48:47,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 00:48:47,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:47,807 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:47,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:48:48,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:48:48,011 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:48,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:48,012 INFO L85 PathProgramCache]: Analyzing trace with hash 814984992, now seen corresponding path program 1 times [2024-11-24 00:48:48,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:48:48,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080507762] [2024-11-24 00:48:48,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:48,014 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:48:48,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:48:48,020 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:48:48,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-24 00:48:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:48,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:48:48,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:48,926 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 24 treesize of output 12 [2024-11-24 00:48:48,992 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 00:48:48,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:48:49,576 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-24 00:48:49,578 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:48:49,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080507762] [2024-11-24 00:48:49,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080507762] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:48:49,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:48:49,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-24 00:48:49,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582776876] [2024-11-24 00:48:49,579 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:48:49,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:48:49,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:48:49,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:48:49,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:48:49,582 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand has 11 states, 9 states have (on average 6.666666666666667) internal successors, (60), 11 states have internal predecessors, (60), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-24 00:48:50,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:50,080 INFO L93 Difference]: Finished difference Result 181 states and 256 transitions. [2024-11-24 00:48:50,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:48:50,085 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.666666666666667) internal successors, (60), 11 states have internal predecessors, (60), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 100 [2024-11-24 00:48:50,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:50,086 INFO L225 Difference]: With dead ends: 181 [2024-11-24 00:48:50,086 INFO L226 Difference]: Without dead ends: 95 [2024-11-24 00:48:50,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 188 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:48:50,088 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 142 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:50,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 496 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:48:50,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-24 00:48:50,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-11-24 00:48:50,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 79 states have (on average 1.3544303797468353) internal successors, (107), 79 states have internal predecessors, (107), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:48:50,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 129 transitions. [2024-11-24 00:48:50,105 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 129 transitions. Word has length 100 [2024-11-24 00:48:50,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:50,106 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 129 transitions. [2024-11-24 00:48:50,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.666666666666667) internal successors, (60), 11 states have internal predecessors, (60), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-24 00:48:50,107 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 129 transitions. [2024-11-24 00:48:50,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 00:48:50,108 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:50,109 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:50,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-24 00:48:50,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:48:50,309 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:50,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:50,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1041802097, now seen corresponding path program 1 times [2024-11-24 00:48:50,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:48:50,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370253338] [2024-11-24 00:48:50,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:50,311 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:48:50,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:48:50,317 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:48:50,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-24 00:48:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:50,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:48:50,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:51,131 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 24 [2024-11-24 00:48:51,222 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:48:51,222 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 35 treesize of output 15 [2024-11-24 00:48:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 00:48:51,278 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:48:51,806 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-24 00:48:51,807 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:48:51,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370253338] [2024-11-24 00:48:51,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370253338] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:48:51,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:48:51,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-24 00:48:51,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743554760] [2024-11-24 00:48:51,809 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:48:51,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:48:51,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:48:51,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:48:51,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:48:51,813 INFO L87 Difference]: Start difference. First operand 93 states and 129 transitions. Second operand has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-24 00:48:52,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:52,539 INFO L93 Difference]: Finished difference Result 185 states and 257 transitions. [2024-11-24 00:48:52,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:48:52,540 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 101 [2024-11-24 00:48:52,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:52,542 INFO L225 Difference]: With dead ends: 185 [2024-11-24 00:48:52,542 INFO L226 Difference]: Without dead ends: 95 [2024-11-24 00:48:52,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:48:52,543 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 212 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:52,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 534 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:48:52,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-24 00:48:52,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-11-24 00:48:52,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 79 states have (on average 1.3417721518987342) internal successors, (106), 79 states have internal predecessors, (106), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:48:52,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 128 transitions. [2024-11-24 00:48:52,558 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 128 transitions. Word has length 101 [2024-11-24 00:48:52,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:52,558 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 128 transitions. [2024-11-24 00:48:52,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-24 00:48:52,559 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 128 transitions. [2024-11-24 00:48:52,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:48:52,561 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:52,561 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:52,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-24 00:48:52,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:48:52,762 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:52,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:52,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1690934070, now seen corresponding path program 1 times [2024-11-24 00:48:52,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:48:52,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241984880] [2024-11-24 00:48:52,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:52,763 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:48:52,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:48:52,765 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:48:52,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-24 00:48:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:53,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:48:53,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:53,158 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:48:53,158 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:48:53,158 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:48:53,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241984880] [2024-11-24 00:48:53,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241984880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:53,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:53,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:48:53,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22728139] [2024-11-24 00:48:53,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:53,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:48:53,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:48:53,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:48:53,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:48:53,161 INFO L87 Difference]: Start difference. First operand 93 states and 128 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:53,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:53,231 INFO L93 Difference]: Finished difference Result 188 states and 260 transitions. [2024-11-24 00:48:53,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:48:53,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-24 00:48:53,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:53,233 INFO L225 Difference]: With dead ends: 188 [2024-11-24 00:48:53,233 INFO L226 Difference]: Without dead ends: 98 [2024-11-24 00:48:53,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:48:53,235 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 1 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:53,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 459 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:48:53,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-24 00:48:53,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2024-11-24 00:48:53,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 83 states have (on average 1.3253012048192772) internal successors, (110), 83 states have internal predecessors, (110), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:48:53,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 132 transitions. [2024-11-24 00:48:53,249 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 132 transitions. Word has length 103 [2024-11-24 00:48:53,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:53,250 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 132 transitions. [2024-11-24 00:48:53,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:48:53,251 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 132 transitions. [2024-11-24 00:48:53,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:48:53,252 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:53,253 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:53,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-24 00:48:53,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:48:53,454 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:53,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:53,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1689087028, now seen corresponding path program 1 times [2024-11-24 00:48:53,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:48:53,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098415759] [2024-11-24 00:48:53,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:53,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:48:53,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:48:53,457 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:48:53,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-24 00:48:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:53,857 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 00:48:53,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:53,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:48:54,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 35 [2024-11-24 00:48:54,411 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:48:54,412 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 100 treesize of output 52 [2024-11-24 00:48:54,519 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-24 00:48:54,519 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:48:54,519 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:48:54,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098415759] [2024-11-24 00:48:54,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098415759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:54,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:54,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:48:54,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605903420] [2024-11-24 00:48:54,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:54,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:48:54,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:48:54,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:48:54,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:48:54,521 INFO L87 Difference]: Start difference. First operand 97 states and 132 transitions. Second operand has 14 states, 12 states have (on average 4.75) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:48:56,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:56,743 INFO L93 Difference]: Finished difference Result 283 states and 378 transitions. [2024-11-24 00:48:56,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 00:48:56,744 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.75) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 103 [2024-11-24 00:48:56,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:56,746 INFO L225 Difference]: With dead ends: 283 [2024-11-24 00:48:56,747 INFO L226 Difference]: Without dead ends: 189 [2024-11-24 00:48:56,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:48:56,748 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 221 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:56,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 1002 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 00:48:56,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-24 00:48:56,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 111. [2024-11-24 00:48:56,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 95 states have internal predecessors, (123), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:48:56,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 145 transitions. [2024-11-24 00:48:56,778 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 145 transitions. Word has length 103 [2024-11-24 00:48:56,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:56,779 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 145 transitions. [2024-11-24 00:48:56,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.75) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-24 00:48:56,779 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 145 transitions. [2024-11-24 00:48:56,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:48:56,781 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:56,781 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:56,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-24 00:48:56,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:48:56,982 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:56,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:56,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1223090714, now seen corresponding path program 1 times [2024-11-24 00:48:56,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:48:56,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340538987] [2024-11-24 00:48:56,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:56,984 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:48:56,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:48:56,986 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:48:56,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-24 00:48:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:57,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:48:57,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:57,640 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 24 [2024-11-24 00:48:57,714 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:48:57,715 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 35 treesize of output 15 [2024-11-24 00:48:57,761 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 00:48:57,761 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:48:58,250 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-24 00:48:58,251 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:48:58,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340538987] [2024-11-24 00:48:58,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340538987] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:48:58,251 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:48:58,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-24 00:48:58,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030607629] [2024-11-24 00:48:58,252 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:48:58,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:48:58,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:48:58,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:48:58,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:48:58,254 INFO L87 Difference]: Start difference. First operand 111 states and 145 transitions. Second operand has 13 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 13 states have internal predecessors, (69), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-24 00:48:58,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:58,926 INFO L93 Difference]: Finished difference Result 219 states and 286 transitions. [2024-11-24 00:48:58,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:48:58,927 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 13 states have internal predecessors, (69), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 105 [2024-11-24 00:48:58,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:58,928 INFO L225 Difference]: With dead ends: 219 [2024-11-24 00:48:58,928 INFO L226 Difference]: Without dead ends: 111 [2024-11-24 00:48:58,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:48:58,930 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 344 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:58,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 508 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:48:58,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-24 00:48:58,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2024-11-24 00:48:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 93 states have (on average 1.2688172043010753) internal successors, (118), 93 states have internal predecessors, (118), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:48:58,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 140 transitions. [2024-11-24 00:48:58,947 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 140 transitions. Word has length 105 [2024-11-24 00:48:58,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:58,947 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 140 transitions. [2024-11-24 00:48:58,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 13 states have internal predecessors, (69), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-24 00:48:58,948 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 140 transitions. [2024-11-24 00:48:58,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:48:58,949 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:58,949 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:58,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-24 00:48:59,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:48:59,150 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:59,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:59,150 INFO L85 PathProgramCache]: Analyzing trace with hash -752129614, now seen corresponding path program 1 times [2024-11-24 00:48:59,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:48:59,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500867236] [2024-11-24 00:48:59,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:59,151 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:48:59,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:48:59,155 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:48:59,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-24 00:48:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:59,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:48:59,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:59,819 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 24 [2024-11-24 00:48:59,870 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:48:59,871 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 35 treesize of output 15 [2024-11-24 00:48:59,919 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 00:48:59,919 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:49:00,376 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-24 00:49:00,376 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:49:00,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500867236] [2024-11-24 00:49:00,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500867236] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:49:00,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:49:00,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-24 00:49:00,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111310975] [2024-11-24 00:49:00,377 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:49:00,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:49:00,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:49:00,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:49:00,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:49:00,379 INFO L87 Difference]: Start difference. First operand 109 states and 140 transitions. Second operand has 13 states, 11 states have (on average 6.0) internal successors, (66), 13 states have internal predecessors, (66), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-24 00:49:00,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:00,971 INFO L93 Difference]: Finished difference Result 207 states and 267 transitions. [2024-11-24 00:49:00,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:49:00,972 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.0) internal successors, (66), 13 states have internal predecessors, (66), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 105 [2024-11-24 00:49:00,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:00,973 INFO L225 Difference]: With dead ends: 207 [2024-11-24 00:49:00,973 INFO L226 Difference]: Without dead ends: 101 [2024-11-24 00:49:00,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:49:00,975 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 192 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:00,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 484 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:49:00,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-24 00:49:00,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2024-11-24 00:49:01,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 83 states have (on average 1.2650602409638554) internal successors, (105), 83 states have internal predecessors, (105), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:49:01,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 127 transitions. [2024-11-24 00:49:01,005 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 127 transitions. Word has length 105 [2024-11-24 00:49:01,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:01,005 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 127 transitions. [2024-11-24 00:49:01,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.0) internal successors, (66), 13 states have internal predecessors, (66), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-24 00:49:01,005 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 127 transitions. [2024-11-24 00:49:01,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:49:01,007 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:01,007 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:01,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:49:01,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:01,208 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:01,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:01,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1310795771, now seen corresponding path program 1 times [2024-11-24 00:49:01,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:49:01,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953878301] [2024-11-24 00:49:01,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:01,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:01,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:49:01,211 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:49:01,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-24 00:49:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:01,593 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 00:49:01,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:01,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:49:01,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:49:01,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:49:01,631 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 17 treesize of output 13 [2024-11-24 00:49:01,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-24 00:49:01,744 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:49:01,744 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:49:01,744 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:49:01,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953878301] [2024-11-24 00:49:01,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953878301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:01,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:01,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:49:01,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019679600] [2024-11-24 00:49:01,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:01,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:49:01,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:49:01,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:49:01,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:49:01,747 INFO L87 Difference]: Start difference. First operand 99 states and 127 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:49:02,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:02,390 INFO L93 Difference]: Finished difference Result 269 states and 347 transitions. [2024-11-24 00:49:02,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:49:02,390 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-24 00:49:02,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:02,392 INFO L225 Difference]: With dead ends: 269 [2024-11-24 00:49:02,392 INFO L226 Difference]: Without dead ends: 173 [2024-11-24 00:49:02,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:49:02,393 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 74 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:02,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 656 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:49:02,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-24 00:49:02,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 170. [2024-11-24 00:49:02,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 147 states have (on average 1.2789115646258504) internal successors, (188), 148 states have internal predecessors, (188), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:49:02,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 220 transitions. [2024-11-24 00:49:02,428 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 220 transitions. Word has length 107 [2024-11-24 00:49:02,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:02,431 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 220 transitions. [2024-11-24 00:49:02,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:49:02,431 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 220 transitions. [2024-11-24 00:49:02,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:49:02,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:02,433 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:02,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-24 00:49:02,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:02,633 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:02,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:02,634 INFO L85 PathProgramCache]: Analyzing trace with hash -764141453, now seen corresponding path program 1 times [2024-11-24 00:49:02,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:49:02,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521094731] [2024-11-24 00:49:02,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:02,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:02,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:49:02,636 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:49:02,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-24 00:49:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:03,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 00:49:03,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:03,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-24 00:49:03,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:49:03,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-24 00:49:03,511 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:03,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2024-11-24 00:49:03,986 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:03,986 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 50 treesize of output 33 [2024-11-24 00:49:04,098 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:04,099 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 39 treesize of output 21 [2024-11-24 00:49:04,157 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 136 proven. 15 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-24 00:49:04,157 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:49:04,412 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:49:04,413 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:49:04,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521094731] [2024-11-24 00:49:04,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521094731] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:49:04,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:49:04,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2024-11-24 00:49:04,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469730200] [2024-11-24 00:49:04,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:04,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:49:04,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:49:04,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:49:04,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:49:04,414 INFO L87 Difference]: Start difference. First operand 170 states and 220 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:49:04,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:04,877 INFO L93 Difference]: Finished difference Result 411 states and 532 transitions. [2024-11-24 00:49:04,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:49:04,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-24 00:49:04,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:04,881 INFO L225 Difference]: With dead ends: 411 [2024-11-24 00:49:04,881 INFO L226 Difference]: Without dead ends: 244 [2024-11-24 00:49:04,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:49:04,882 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 64 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:04,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 260 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:49:04,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-24 00:49:04,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 199. [2024-11-24 00:49:04,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 176 states have (on average 1.2670454545454546) internal successors, (223), 177 states have internal predecessors, (223), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:49:04,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 255 transitions. [2024-11-24 00:49:04,904 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 255 transitions. Word has length 108 [2024-11-24 00:49:04,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:04,904 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 255 transitions. [2024-11-24 00:49:04,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:49:04,904 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 255 transitions. [2024-11-24 00:49:04,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:49:04,906 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:04,906 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:04,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-24 00:49:05,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:05,107 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:05,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:05,107 INFO L85 PathProgramCache]: Analyzing trace with hash -505976015, now seen corresponding path program 1 times [2024-11-24 00:49:05,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:49:05,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774838086] [2024-11-24 00:49:05,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:05,108 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:05,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:49:05,110 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:49:05,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-24 00:49:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:05,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 00:49:05,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:05,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-24 00:49:05,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 00:49:05,785 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 30 treesize of output 14 [2024-11-24 00:49:06,381 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:06,381 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 55 treesize of output 36 [2024-11-24 00:49:06,820 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:06,821 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 56 treesize of output 26 [2024-11-24 00:49:06,952 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-24 00:49:06,953 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:49:06,953 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:49:06,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774838086] [2024-11-24 00:49:06,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774838086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:06,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:06,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:49:06,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213909194] [2024-11-24 00:49:06,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:06,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:49:06,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:49:06,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:49:06,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:49:06,955 INFO L87 Difference]: Start difference. First operand 199 states and 255 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:49:10,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:10,478 INFO L93 Difference]: Finished difference Result 858 states and 1095 transitions. [2024-11-24 00:49:10,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:49:10,479 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-11-24 00:49:10,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:10,483 INFO L225 Difference]: With dead ends: 858 [2024-11-24 00:49:10,483 INFO L226 Difference]: Without dead ends: 662 [2024-11-24 00:49:10,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:49:10,485 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 360 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 88 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:10,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 790 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2024-11-24 00:49:10,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-24 00:49:10,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 541. [2024-11-24 00:49:10,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 480 states have (on average 1.25625) internal successors, (603), 484 states have internal predecessors, (603), 44 states have call successors, (44), 16 states have call predecessors, (44), 16 states have return successors, (44), 40 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-24 00:49:10,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 691 transitions. [2024-11-24 00:49:10,550 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 691 transitions. Word has length 108 [2024-11-24 00:49:10,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:10,550 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 691 transitions. [2024-11-24 00:49:10,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:49:10,551 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 691 transitions. [2024-11-24 00:49:10,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:49:10,552 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:10,552 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:10,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-24 00:49:10,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:10,753 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:10,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:10,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1607597809, now seen corresponding path program 1 times [2024-11-24 00:49:10,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:49:10,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760659050] [2024-11-24 00:49:10,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:10,754 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:10,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:49:10,756 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:49:10,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-24 00:49:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:11,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 00:49:11,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:11,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-24 00:49:11,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:49:11,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-24 00:49:11,796 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:11,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2024-11-24 00:49:12,467 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:12,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 49 [2024-11-24 00:49:13,093 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:13,093 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 80 treesize of output 38 [2024-11-24 00:49:14,809 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 136 proven. 15 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-24 00:49:14,809 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:49:16,709 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:49:16,709 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:49:16,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760659050] [2024-11-24 00:49:16,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1760659050] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:49:16,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:49:16,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 21 [2024-11-24 00:49:16,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310214823] [2024-11-24 00:49:16,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:16,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:49:16,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:49:16,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:49:16,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:49:16,711 INFO L87 Difference]: Start difference. First operand 541 states and 691 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:49:20,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:20,424 INFO L93 Difference]: Finished difference Result 1237 states and 1586 transitions. [2024-11-24 00:49:20,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:49:20,427 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-24 00:49:20,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:20,431 INFO L225 Difference]: With dead ends: 1237 [2024-11-24 00:49:20,431 INFO L226 Difference]: Without dead ends: 699 [2024-11-24 00:49:20,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:49:20,434 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 138 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:20,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 620 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-24 00:49:20,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-24 00:49:20,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 570. [2024-11-24 00:49:20,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 509 states have (on average 1.2514734774066798) internal successors, (637), 513 states have internal predecessors, (637), 44 states have call successors, (44), 16 states have call predecessors, (44), 16 states have return successors, (44), 40 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-24 00:49:20,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 725 transitions. [2024-11-24 00:49:20,507 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 725 transitions. Word has length 108 [2024-11-24 00:49:20,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:20,508 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 725 transitions. [2024-11-24 00:49:20,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:49:20,508 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 725 transitions. [2024-11-24 00:49:20,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:49:20,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:20,510 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:20,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-24 00:49:20,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:20,710 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:20,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:20,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1865763247, now seen corresponding path program 1 times [2024-11-24 00:49:20,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:49:20,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927634871] [2024-11-24 00:49:20,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:20,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:20,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:49:20,713 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:49:20,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-24 00:49:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:21,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-24 00:49:21,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:21,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-24 00:49:21,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:49:21,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:49:21,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-24 00:49:22,424 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:22,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 50 [2024-11-24 00:49:22,917 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 144 proven. 15 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-24 00:49:22,917 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:49:25,464 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:49:25,465 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:49:25,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927634871] [2024-11-24 00:49:25,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927634871] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:49:25,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:49:25,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 21 [2024-11-24 00:49:25,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133406204] [2024-11-24 00:49:25,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:25,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:49:25,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:49:25,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:49:25,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:49:25,466 INFO L87 Difference]: Start difference. First operand 570 states and 725 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:49:29,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:29,542 INFO L93 Difference]: Finished difference Result 1253 states and 1598 transitions. [2024-11-24 00:49:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:49:29,545 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-24 00:49:29,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:29,550 INFO L225 Difference]: With dead ends: 1253 [2024-11-24 00:49:29,550 INFO L226 Difference]: Without dead ends: 686 [2024-11-24 00:49:29,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:49:29,555 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 229 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:29,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 688 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-24 00:49:29,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-11-24 00:49:29,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 557. [2024-11-24 00:49:29,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 496 states have (on average 1.2540322580645162) internal successors, (622), 500 states have internal predecessors, (622), 44 states have call successors, (44), 16 states have call predecessors, (44), 16 states have return successors, (44), 40 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-24 00:49:29,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 710 transitions. [2024-11-24 00:49:29,618 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 710 transitions. Word has length 108 [2024-11-24 00:49:29,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:29,618 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 710 transitions. [2024-11-24 00:49:29,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:49:29,619 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 710 transitions. [2024-11-24 00:49:29,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:49:29,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:29,620 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:29,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-24 00:49:29,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:29,821 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:29,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:29,822 INFO L85 PathProgramCache]: Analyzing trace with hash 694939198, now seen corresponding path program 1 times [2024-11-24 00:49:29,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:49:29,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808459088] [2024-11-24 00:49:29,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:29,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:29,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:49:29,825 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:49:29,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-24 00:49:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:30,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 00:49:30,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:30,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-24 00:49:30,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 00:49:30,494 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 30 treesize of output 14 [2024-11-24 00:49:31,015 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:31,015 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 56 treesize of output 37 [2024-11-24 00:49:31,414 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:31,414 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 [2024-11-24 00:49:31,553 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-24 00:49:31,554 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:49:31,554 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:49:31,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808459088] [2024-11-24 00:49:31,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808459088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:31,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:31,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:49:31,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662772262] [2024-11-24 00:49:31,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:31,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:49:31,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:49:31,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:49:31,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:49:31,557 INFO L87 Difference]: Start difference. First operand 557 states and 710 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:49:35,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:35,362 INFO L93 Difference]: Finished difference Result 1306 states and 1653 transitions. [2024-11-24 00:49:35,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:49:35,363 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-11-24 00:49:35,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:35,369 INFO L225 Difference]: With dead ends: 1306 [2024-11-24 00:49:35,369 INFO L226 Difference]: Without dead ends: 752 [2024-11-24 00:49:35,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:49:35,373 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 354 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:35,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 826 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-24 00:49:35,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2024-11-24 00:49:35,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 629. [2024-11-24 00:49:35,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 558 states have (on average 1.2508960573476702) internal successors, (698), 563 states have internal predecessors, (698), 51 states have call successors, (51), 19 states have call predecessors, (51), 19 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-24 00:49:35,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 800 transitions. [2024-11-24 00:49:35,464 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 800 transitions. Word has length 109 [2024-11-24 00:49:35,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:35,464 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 800 transitions. [2024-11-24 00:49:35,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:49:35,465 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 800 transitions. [2024-11-24 00:49:35,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:49:35,467 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:35,467 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:35,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-24 00:49:35,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:35,668 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:35,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:35,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1917051433, now seen corresponding path program 1 times [2024-11-24 00:49:35,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:49:35,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625859643] [2024-11-24 00:49:35,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:35,669 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:35,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:49:35,671 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:49:35,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-24 00:49:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:36,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 00:49:36,055 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:36,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:49:36,399 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 24 [2024-11-24 00:49:36,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:36,646 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 68 treesize of output 32 [2024-11-24 00:49:36,702 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 00:49:36,702 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:49:36,920 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:49:36,920 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:49:36,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625859643] [2024-11-24 00:49:36,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1625859643] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:49:36,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:49:36,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2024-11-24 00:49:36,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577828319] [2024-11-24 00:49:36,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:36,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:49:36,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:49:36,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:49:36,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:49:36,922 INFO L87 Difference]: Start difference. First operand 629 states and 800 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:49:37,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:37,113 INFO L93 Difference]: Finished difference Result 652 states and 829 transitions. [2024-11-24 00:49:37,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:49:37,114 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-11-24 00:49:37,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:37,117 INFO L225 Difference]: With dead ends: 652 [2024-11-24 00:49:37,117 INFO L226 Difference]: Without dead ends: 650 [2024-11-24 00:49:37,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:49:37,118 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 24 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:37,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 492 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:49:37,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-11-24 00:49:37,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2024-11-24 00:49:37,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 579 states have (on average 1.241796200345423) internal successors, (719), 584 states have internal predecessors, (719), 51 states have call successors, (51), 19 states have call predecessors, (51), 19 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-24 00:49:37,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 821 transitions. [2024-11-24 00:49:37,185 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 821 transitions. Word has length 109 [2024-11-24 00:49:37,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:37,187 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 821 transitions. [2024-11-24 00:49:37,187 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:49:37,187 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 821 transitions. [2024-11-24 00:49:37,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:49:37,188 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:37,188 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:37,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-24 00:49:37,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:37,389 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:37,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:37,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1918898475, now seen corresponding path program 1 times [2024-11-24 00:49:37,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:49:37,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797307428] [2024-11-24 00:49:37,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:37,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:37,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:49:37,392 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:49:37,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-24 00:49:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:37,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:49:37,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:37,834 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:49:37,834 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:49:37,834 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:49:37,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797307428] [2024-11-24 00:49:37,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797307428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:37,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:37,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:49:37,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585113834] [2024-11-24 00:49:37,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:37,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:49:37,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:49:37,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:49:37,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:49:37,837 INFO L87 Difference]: Start difference. First operand 650 states and 821 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:49:37,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:37,962 INFO L93 Difference]: Finished difference Result 1318 states and 1667 transitions. [2024-11-24 00:49:37,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:49:37,963 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-11-24 00:49:37,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:37,967 INFO L225 Difference]: With dead ends: 1318 [2024-11-24 00:49:37,968 INFO L226 Difference]: Without dead ends: 671 [2024-11-24 00:49:37,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:49:37,971 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:37,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 429 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:49:37,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2024-11-24 00:49:38,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 671. [2024-11-24 00:49:38,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 600 states have (on average 1.2333333333333334) internal successors, (740), 605 states have internal predecessors, (740), 51 states have call successors, (51), 19 states have call predecessors, (51), 19 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-24 00:49:38,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 842 transitions. [2024-11-24 00:49:38,066 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 842 transitions. Word has length 109 [2024-11-24 00:49:38,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:38,067 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 842 transitions. [2024-11-24 00:49:38,067 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:49:38,067 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 842 transitions. [2024-11-24 00:49:38,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:49:38,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:38,069 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:38,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-24 00:49:38,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:38,270 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:38,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:38,270 INFO L85 PathProgramCache]: Analyzing trace with hash -2079437758, now seen corresponding path program 1 times [2024-11-24 00:49:38,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:49:38,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141499147] [2024-11-24 00:49:38,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:38,271 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:38,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:49:38,276 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:49:38,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-24 00:49:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:38,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-24 00:49:38,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:38,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-24 00:49:38,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:49:39,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:49:39,374 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:39,374 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 40 treesize of output 27 [2024-11-24 00:49:40,117 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:40,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 51 [2024-11-24 00:49:40,840 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:40,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 40 [2024-11-24 00:49:52,394 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 141 proven. 21 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-24 00:49:52,394 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:49:54,811 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:49:54,811 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:49:54,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2141499147] [2024-11-24 00:49:54,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2141499147] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:49:54,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:49:54,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 24 [2024-11-24 00:49:54,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207448547] [2024-11-24 00:49:54,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:54,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:49:54,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:49:54,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:49:54,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:49:54,813 INFO L87 Difference]: Start difference. First operand 671 states and 842 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:49:58,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:58,239 INFO L93 Difference]: Finished difference Result 1421 states and 1782 transitions. [2024-11-24 00:49:58,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:49:58,241 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-11-24 00:49:58,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:58,246 INFO L225 Difference]: With dead ends: 1421 [2024-11-24 00:49:58,246 INFO L226 Difference]: Without dead ends: 753 [2024-11-24 00:49:58,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=123, Invalid=579, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:49:58,248 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 77 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:58,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 532 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-24 00:49:58,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-24 00:49:58,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 673. [2024-11-24 00:49:58,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 602 states have (on average 1.2325581395348837) internal successors, (742), 607 states have internal predecessors, (742), 51 states have call successors, (51), 19 states have call predecessors, (51), 19 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-24 00:49:58,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 844 transitions. [2024-11-24 00:49:58,325 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 844 transitions. Word has length 109 [2024-11-24 00:49:58,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:58,326 INFO L471 AbstractCegarLoop]: Abstraction has 673 states and 844 transitions. [2024-11-24 00:49:58,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:49:58,326 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 844 transitions. [2024-11-24 00:49:58,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:49:58,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:58,327 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:58,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:49:58,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:58,528 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:58,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:58,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1204412288, now seen corresponding path program 1 times [2024-11-24 00:49:58,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:49:58,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994083408] [2024-11-24 00:49:58,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:58,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:49:58,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:49:58,531 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:49:58,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:49:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:58,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 00:49:58,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:58,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-24 00:49:59,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:49:59,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-24 00:49:59,426 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:59,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2024-11-24 00:49:59,803 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:59,803 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 40 treesize of output 27 [2024-11-24 00:49:59,888 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:49:59,888 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 29 treesize of output 15 [2024-11-24 00:49:59,940 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 136 proven. 15 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-24 00:49:59,940 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:50:00,172 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:50:00,173 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:50:00,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994083408] [2024-11-24 00:50:00,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994083408] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:50:00,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:50:00,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2024-11-24 00:50:00,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402961377] [2024-11-24 00:50:00,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:00,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:50:00,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:50:00,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:50:00,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:50:00,174 INFO L87 Difference]: Start difference. First operand 673 states and 844 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:50:00,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:00,850 INFO L93 Difference]: Finished difference Result 1401 states and 1753 transitions. [2024-11-24 00:50:00,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:50:00,851 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-11-24 00:50:00,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:00,855 INFO L225 Difference]: With dead ends: 1401 [2024-11-24 00:50:00,855 INFO L226 Difference]: Without dead ends: 731 [2024-11-24 00:50:00,856 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:50:00,857 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 35 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:00,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 417 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:50:00,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2024-11-24 00:50:00,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 671. [2024-11-24 00:50:00,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 600 states have (on average 1.2216666666666667) internal successors, (733), 605 states have internal predecessors, (733), 51 states have call successors, (51), 19 states have call predecessors, (51), 19 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-24 00:50:00,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 835 transitions. [2024-11-24 00:50:00,938 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 835 transitions. Word has length 109 [2024-11-24 00:50:00,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:00,938 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 835 transitions. [2024-11-24 00:50:00,939 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:50:00,939 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 835 transitions. [2024-11-24 00:50:00,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:50:00,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:00,940 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:00,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:50:01,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:01,141 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:01,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:01,142 INFO L85 PathProgramCache]: Analyzing trace with hash -454907722, now seen corresponding path program 1 times [2024-11-24 00:50:01,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:50:01,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828655266] [2024-11-24 00:50:01,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:01,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:01,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:50:01,146 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:50:01,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-24 00:50:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:01,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 00:50:01,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:01,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:50:01,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 00:50:01,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-24 00:50:01,888 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:50:01,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 32 [2024-11-24 00:50:02,087 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-24 00:50:02,087 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:02,087 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:50:02,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828655266] [2024-11-24 00:50:02,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828655266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:02,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:02,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:50:02,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322301753] [2024-11-24 00:50:02,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:02,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:50:02,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:50:02,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:50:02,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:50:02,089 INFO L87 Difference]: Start difference. First operand 671 states and 835 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:50:03,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:03,628 INFO L93 Difference]: Finished difference Result 1411 states and 1757 transitions. [2024-11-24 00:50:03,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:50:03,629 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-24 00:50:03,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:03,633 INFO L225 Difference]: With dead ends: 1411 [2024-11-24 00:50:03,633 INFO L226 Difference]: Without dead ends: 743 [2024-11-24 00:50:03,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:50:03,635 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 173 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:03,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 783 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 00:50:03,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2024-11-24 00:50:03,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 630. [2024-11-24 00:50:03,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 562 states have (on average 1.209964412811388) internal successors, (680), 566 states have internal predecessors, (680), 48 states have call successors, (48), 19 states have call predecessors, (48), 19 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:50:03,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 776 transitions. [2024-11-24 00:50:03,709 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 776 transitions. Word has length 110 [2024-11-24 00:50:03,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:03,710 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 776 transitions. [2024-11-24 00:50:03,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:50:03,710 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 776 transitions. [2024-11-24 00:50:03,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:50:03,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:03,712 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:03,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-24 00:50:03,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:03,913 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:03,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:03,913 INFO L85 PathProgramCache]: Analyzing trace with hash 246156856, now seen corresponding path program 1 times [2024-11-24 00:50:03,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:50:03,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819177714] [2024-11-24 00:50:03,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:03,914 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:03,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:50:03,917 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:50:03,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-24 00:50:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:04,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 00:50:04,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:06,162 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:50:06,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 303 treesize of output 99 [2024-11-24 00:50:06,337 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-24 00:50:06,337 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:50:07,021 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:50:07,021 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:50:07,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819177714] [2024-11-24 00:50:07,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819177714] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:50:07,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:50:07,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-24 00:50:07,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529829112] [2024-11-24 00:50:07,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:07,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:50:07,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:50:07,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:50:07,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:50:07,023 INFO L87 Difference]: Start difference. First operand 630 states and 776 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:50:07,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:07,670 INFO L93 Difference]: Finished difference Result 1257 states and 1547 transitions. [2024-11-24 00:50:07,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:50:07,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-11-24 00:50:07,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:07,674 INFO L225 Difference]: With dead ends: 1257 [2024-11-24 00:50:07,674 INFO L226 Difference]: Without dead ends: 630 [2024-11-24 00:50:07,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:50:07,676 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 35 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:07,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 495 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:50:07,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-11-24 00:50:07,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 618. [2024-11-24 00:50:07,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 550 states have (on average 1.2072727272727273) internal successors, (664), 554 states have internal predecessors, (664), 48 states have call successors, (48), 19 states have call predecessors, (48), 19 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:50:07,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 760 transitions. [2024-11-24 00:50:07,765 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 760 transitions. Word has length 110 [2024-11-24 00:50:07,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:07,765 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 760 transitions. [2024-11-24 00:50:07,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:50:07,766 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 760 transitions. [2024-11-24 00:50:07,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:50:07,767 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:07,767 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:07,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-24 00:50:07,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:07,968 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:07,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:07,968 INFO L85 PathProgramCache]: Analyzing trace with hash -392868108, now seen corresponding path program 1 times [2024-11-24 00:50:07,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:50:07,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373470013] [2024-11-24 00:50:07,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:07,969 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:07,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:50:07,971 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:50:07,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-24 00:50:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:08,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 00:50:08,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:10,205 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:50:10,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 304 treesize of output 100 [2024-11-24 00:50:10,428 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-24 00:50:10,428 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:50:11,056 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:50:11,056 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:50:11,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373470013] [2024-11-24 00:50:11,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373470013] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:50:11,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:50:11,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-24 00:50:11,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651874768] [2024-11-24 00:50:11,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:11,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:50:11,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:50:11,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:50:11,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:50:11,058 INFO L87 Difference]: Start difference. First operand 618 states and 760 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:50:11,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:11,654 INFO L93 Difference]: Finished difference Result 1304 states and 1600 transitions. [2024-11-24 00:50:11,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:50:11,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-11-24 00:50:11,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:11,659 INFO L225 Difference]: With dead ends: 1304 [2024-11-24 00:50:11,660 INFO L226 Difference]: Without dead ends: 689 [2024-11-24 00:50:11,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:50:11,662 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 72 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:11,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 369 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:50:11,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-11-24 00:50:11,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 619. [2024-11-24 00:50:11,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 551 states have (on average 1.2032667876588021) internal successors, (663), 555 states have internal predecessors, (663), 48 states have call successors, (48), 19 states have call predecessors, (48), 19 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:50:11,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 759 transitions. [2024-11-24 00:50:11,738 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 759 transitions. Word has length 110 [2024-11-24 00:50:11,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:11,739 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 759 transitions. [2024-11-24 00:50:11,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:50:11,739 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 759 transitions. [2024-11-24 00:50:11,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:50:11,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:11,740 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:11,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-11-24 00:50:11,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:11,941 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:11,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:11,942 INFO L85 PathProgramCache]: Analyzing trace with hash 308196470, now seen corresponding path program 1 times [2024-11-24 00:50:11,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:50:11,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157933872] [2024-11-24 00:50:11,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:11,943 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:11,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:50:11,946 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:50:11,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-24 00:50:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:12,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 00:50:12,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:12,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:50:12,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:50:12,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 00:50:12,641 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 17 treesize of output 13 [2024-11-24 00:50:12,721 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:50:12,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 30 [2024-11-24 00:50:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-24 00:50:12,922 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:12,922 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:50:12,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157933872] [2024-11-24 00:50:12,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157933872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:12,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:12,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:50:12,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631851061] [2024-11-24 00:50:12,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:12,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:50:12,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:50:12,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:50:12,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:50:12,924 INFO L87 Difference]: Start difference. First operand 619 states and 759 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:50:14,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:14,188 INFO L93 Difference]: Finished difference Result 1238 states and 1518 transitions. [2024-11-24 00:50:14,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:50:14,190 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-24 00:50:14,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:14,196 INFO L225 Difference]: With dead ends: 1238 [2024-11-24 00:50:14,197 INFO L226 Difference]: Without dead ends: 622 [2024-11-24 00:50:14,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:50:14,201 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 191 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:14,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 685 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:50:14,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-11-24 00:50:14,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 613. [2024-11-24 00:50:14,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 545 states have (on average 1.201834862385321) internal successors, (655), 549 states have internal predecessors, (655), 48 states have call successors, (48), 19 states have call predecessors, (48), 19 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:50:14,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 751 transitions. [2024-11-24 00:50:14,280 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 751 transitions. Word has length 110 [2024-11-24 00:50:14,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:14,281 INFO L471 AbstractCegarLoop]: Abstraction has 613 states and 751 transitions. [2024-11-24 00:50:14,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:50:14,281 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 751 transitions. [2024-11-24 00:50:14,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:50:14,282 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:14,282 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:14,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-24 00:50:14,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:14,483 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:14,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:14,483 INFO L85 PathProgramCache]: Analyzing trace with hash -90570928, now seen corresponding path program 1 times [2024-11-24 00:50:14,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:50:14,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131737734] [2024-11-24 00:50:14,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:14,484 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:14,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:50:14,486 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:50:14,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:50:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:14,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 00:50:14,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:23,756 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 136 treesize of output 88 [2024-11-24 00:50:23,779 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:50:23,780 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 100 treesize of output 40 [2024-11-24 00:50:25,100 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-24 00:50:25,100 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:25,100 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:50:25,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131737734] [2024-11-24 00:50:25,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131737734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:25,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:25,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:50:25,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263879893] [2024-11-24 00:50:25,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:25,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:50:25,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:50:25,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:50:25,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:50:25,102 INFO L87 Difference]: Start difference. First operand 613 states and 751 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:50:37,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:37,119 INFO L93 Difference]: Finished difference Result 1909 states and 2306 transitions. [2024-11-24 00:50:37,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:50:37,120 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-24 00:50:37,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:37,125 INFO L225 Difference]: With dead ends: 1909 [2024-11-24 00:50:37,125 INFO L226 Difference]: Without dead ends: 1299 [2024-11-24 00:50:37,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:50:37,127 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 246 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:37,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 719 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-11-24 00:50:37,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2024-11-24 00:50:37,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1250. [2024-11-24 00:50:37,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1115 states have (on average 1.1748878923766817) internal successors, (1310), 1129 states have internal predecessors, (1310), 96 states have call successors, (96), 38 states have call predecessors, (96), 38 states have return successors, (96), 82 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 00:50:37,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1502 transitions. [2024-11-24 00:50:37,287 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1502 transitions. Word has length 111 [2024-11-24 00:50:37,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:37,291 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1502 transitions. [2024-11-24 00:50:37,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:50:37,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1502 transitions. [2024-11-24 00:50:37,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:50:37,293 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:37,293 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:37,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -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)] Ended with exit code 0 [2024-11-24 00:50:37,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:37,494 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:37,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:37,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2127059470, now seen corresponding path program 1 times [2024-11-24 00:50:37,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:50:37,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996616542] [2024-11-24 00:50:37,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:37,495 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:37,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:50:37,497 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:50:37,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-24 00:50:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:37,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:50:37,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:37,861 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-24 00:50:37,861 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:37,861 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:50:37,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [996616542] [2024-11-24 00:50:37,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [996616542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:37,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:37,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:50:37,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508021537] [2024-11-24 00:50:37,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:37,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:50:37,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:50:37,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:50:37,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:50:37,865 INFO L87 Difference]: Start difference. First operand 1250 states and 1502 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:50:38,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:38,072 INFO L93 Difference]: Finished difference Result 2497 states and 3001 transitions. [2024-11-24 00:50:38,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:50:38,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-24 00:50:38,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:38,078 INFO L225 Difference]: With dead ends: 2497 [2024-11-24 00:50:38,078 INFO L226 Difference]: Without dead ends: 1250 [2024-11-24 00:50:38,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:50:38,081 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:38,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:50:38,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-24 00:50:38,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2024-11-24 00:50:38,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1115 states have (on average 1.169506726457399) internal successors, (1304), 1129 states have internal predecessors, (1304), 96 states have call successors, (96), 38 states have call predecessors, (96), 38 states have return successors, (96), 82 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 00:50:38,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1496 transitions. [2024-11-24 00:50:38,246 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1496 transitions. Word has length 111 [2024-11-24 00:50:38,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:38,246 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1496 transitions. [2024-11-24 00:50:38,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:50:38,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1496 transitions. [2024-11-24 00:50:38,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-24 00:50:38,248 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:38,249 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:38,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:50:38,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:38,449 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:38,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:38,450 INFO L85 PathProgramCache]: Analyzing trace with hash 909567505, now seen corresponding path program 1 times [2024-11-24 00:50:38,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:50:38,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1254027586] [2024-11-24 00:50:38,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:38,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:38,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:50:38,452 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:50:38,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-24 00:50:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:38,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:50:38,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:38,825 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 17 treesize of output 13 [2024-11-24 00:50:38,934 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 54 treesize of output 42 [2024-11-24 00:50:38,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 00:50:39,279 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 64 treesize of output 44 [2024-11-24 00:50:39,978 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 53 treesize of output 41 [2024-11-24 00:50:39,987 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 52 treesize of output 40 [2024-11-24 00:50:40,224 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:50:40,224 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:40,224 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:50:40,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1254027586] [2024-11-24 00:50:40,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1254027586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:40,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:40,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:50:40,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434153824] [2024-11-24 00:50:40,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:40,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:50:40,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:50:40,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:50:40,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:50:40,226 INFO L87 Difference]: Start difference. First operand 1250 states and 1496 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:50:45,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:45,927 INFO L93 Difference]: Finished difference Result 2147 states and 2552 transitions. [2024-11-24 00:50:45,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 00:50:45,928 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-11-24 00:50:45,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:45,934 INFO L225 Difference]: With dead ends: 2147 [2024-11-24 00:50:45,934 INFO L226 Difference]: Without dead ends: 1580 [2024-11-24 00:50:45,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:50:45,936 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 253 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:45,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 2233 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-24 00:50:45,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2024-11-24 00:50:46,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1388. [2024-11-24 00:50:46,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1253 states have (on average 1.1588188347964885) internal successors, (1452), 1267 states have internal predecessors, (1452), 96 states have call successors, (96), 38 states have call predecessors, (96), 38 states have return successors, (96), 82 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 00:50:46,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1644 transitions. [2024-11-24 00:50:46,114 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1644 transitions. Word has length 112 [2024-11-24 00:50:46,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:46,114 INFO L471 AbstractCegarLoop]: Abstraction has 1388 states and 1644 transitions. [2024-11-24 00:50:46,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:50:46,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1644 transitions. [2024-11-24 00:50:46,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-24 00:50:46,117 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:46,117 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:46,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:50:46,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:46,318 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:46,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:46,318 INFO L85 PathProgramCache]: Analyzing trace with hash 971607119, now seen corresponding path program 1 times [2024-11-24 00:50:46,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:50:46,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082857167] [2024-11-24 00:50:46,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:46,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:46,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:50:46,320 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:50:46,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-24 00:50:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:46,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 00:50:46,654 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:46,659 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 17 treesize of output 13 [2024-11-24 00:50:46,675 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 29 treesize of output 21 [2024-11-24 00:50:47,445 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 14 [2024-11-24 00:50:47,452 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 52 treesize of output 28 [2024-11-24 00:50:47,567 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:50:47,567 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:47,567 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:50:47,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082857167] [2024-11-24 00:50:47,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082857167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:47,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:47,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:50:47,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801639859] [2024-11-24 00:50:47,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:47,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:50:47,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:50:47,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:50:47,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:50:47,569 INFO L87 Difference]: Start difference. First operand 1388 states and 1644 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:50:51,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:51,550 INFO L93 Difference]: Finished difference Result 2305 states and 2724 transitions. [2024-11-24 00:50:51,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:50:51,552 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-11-24 00:50:51,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:51,555 INFO L225 Difference]: With dead ends: 2305 [2024-11-24 00:50:51,556 INFO L226 Difference]: Without dead ends: 1620 [2024-11-24 00:50:51,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:50:51,557 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 195 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:51,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1572 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-24 00:50:51,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2024-11-24 00:50:51,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1446. [2024-11-24 00:50:51,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1446 states, 1311 states have (on average 1.1540808543096872) internal successors, (1513), 1325 states have internal predecessors, (1513), 96 states have call successors, (96), 38 states have call predecessors, (96), 38 states have return successors, (96), 82 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 00:50:51,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 1705 transitions. [2024-11-24 00:50:51,760 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 1705 transitions. Word has length 112 [2024-11-24 00:50:51,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:51,761 INFO L471 AbstractCegarLoop]: Abstraction has 1446 states and 1705 transitions. [2024-11-24 00:50:51,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:50:51,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 1705 transitions. [2024-11-24 00:50:51,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-24 00:50:51,764 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:51,765 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:51,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-24 00:50:51,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:51,965 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:51,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:51,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1651665489, now seen corresponding path program 1 times [2024-11-24 00:50:51,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:50:51,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787473892] [2024-11-24 00:50:51,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:51,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:50:51,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:50:51,968 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:50:51,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-11-24 00:50:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:52,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 00:50:52,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:53,159 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 17 treesize of output 13 [2024-11-24 00:50:53,411 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 71 treesize of output 55 [2024-11-24 00:50:53,420 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 35 treesize of output 23 [2024-11-24 00:50:53,846 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 65 treesize of output 45 [2024-11-24 00:50:54,795 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 53 treesize of output 41 [2024-11-24 00:50:54,808 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 52 treesize of output 40 [2024-11-24 00:50:55,250 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:50:55,250 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:55,251 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:50:55,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787473892] [2024-11-24 00:50:55,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787473892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:55,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:55,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 00:50:55,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728127] [2024-11-24 00:50:55,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:55,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:50:55,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:50:55,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:50:55,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:50:55,253 INFO L87 Difference]: Start difference. First operand 1446 states and 1705 transitions. Second operand has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:51:04,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:51:04,348 INFO L93 Difference]: Finished difference Result 2525 states and 2980 transitions. [2024-11-24 00:51:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-24 00:51:04,350 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-11-24 00:51:04,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:51:04,354 INFO L225 Difference]: With dead ends: 2525 [2024-11-24 00:51:04,354 INFO L226 Difference]: Without dead ends: 1782 [2024-11-24 00:51:04,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=191, Invalid=1215, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 00:51:04,356 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 397 mSDsluCounter, 2185 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 2400 SdHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:51:04,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 2400 Invalid, 1425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-24 00:51:04,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2024-11-24 00:51:04,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1496. [2024-11-24 00:51:04,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1496 states, 1361 states have (on average 1.151359294636297) internal successors, (1567), 1375 states have internal predecessors, (1567), 96 states have call successors, (96), 38 states have call predecessors, (96), 38 states have return successors, (96), 82 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 00:51:04,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 1759 transitions. [2024-11-24 00:51:04,553 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 1759 transitions. Word has length 112 [2024-11-24 00:51:04,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:51:04,553 INFO L471 AbstractCegarLoop]: Abstraction has 1496 states and 1759 transitions. [2024-11-24 00:51:04,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:51:04,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 1759 transitions. [2024-11-24 00:51:04,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-24 00:51:04,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:51:04,556 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:51:04,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-11-24 00:51:04,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:51:04,756 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:51:04,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:51:04,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1971133969, now seen corresponding path program 1 times [2024-11-24 00:51:04,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:51:04,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978036749] [2024-11-24 00:51:04,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:51:04,757 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:51:04,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:51:04,762 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:51:04,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-24 00:51:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:51:05,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 00:51:05,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:51:05,999 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 17 treesize of output 13 [2024-11-24 00:51:06,107 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 42 treesize of output 30 [2024-11-24 00:51:06,114 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 19 [2024-11-24 00:51:06,591 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 46 treesize of output 34 [2024-11-24 00:51:07,145 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 53 treesize of output 41 [2024-11-24 00:51:07,150 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 64 treesize of output 48 [2024-11-24 00:51:07,391 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:51:07,391 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:51:07,391 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:51:07,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978036749] [2024-11-24 00:51:07,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978036749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:51:07,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:51:07,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 00:51:07,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666862891] [2024-11-24 00:51:07,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:51:07,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:51:07,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:51:07,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:51:07,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:51:07,393 INFO L87 Difference]: Start difference. First operand 1496 states and 1759 transitions. Second operand has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:51:16,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:51:16,447 INFO L93 Difference]: Finished difference Result 2629 states and 3074 transitions. [2024-11-24 00:51:16,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-24 00:51:16,448 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-11-24 00:51:16,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:51:16,455 INFO L225 Difference]: With dead ends: 2629 [2024-11-24 00:51:16,455 INFO L226 Difference]: Without dead ends: 1886 [2024-11-24 00:51:16,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=193, Invalid=1367, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 00:51:16,457 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 456 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:51:16,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 2613 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-24 00:51:16,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2024-11-24 00:51:16,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1452. [2024-11-24 00:51:16,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1335 states have (on average 1.144569288389513) internal successors, (1528), 1346 states have internal predecessors, (1528), 82 states have call successors, (82), 34 states have call predecessors, (82), 34 states have return successors, (82), 71 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-24 00:51:16,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 1692 transitions. [2024-11-24 00:51:16,630 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 1692 transitions. Word has length 112 [2024-11-24 00:51:16,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:51:16,630 INFO L471 AbstractCegarLoop]: Abstraction has 1452 states and 1692 transitions. [2024-11-24 00:51:16,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:51:16,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 1692 transitions. [2024-11-24 00:51:16,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-24 00:51:16,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:51:16,633 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:51:16,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-11-24 00:51:16,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:51:16,833 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:51:16,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:51:16,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1768826934, now seen corresponding path program 1 times [2024-11-24 00:51:16,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:51:16,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797899444] [2024-11-24 00:51:16,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:51:16,834 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:51:16,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:51:16,836 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:51:16,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-24 00:51:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:51:17,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 00:51:17,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:51:26,546 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 134 treesize of output 86 [2024-11-24 00:51:26,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:51:26,569 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 100 treesize of output 40 [2024-11-24 00:51:27,903 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 118 proven. 18 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 00:51:27,903 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:51:39,581 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:51:39,581 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:51:39,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797899444] [2024-11-24 00:51:39,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797899444] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:51:39,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:51:39,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-11-24 00:51:39,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593757319] [2024-11-24 00:51:39,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:51:39,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:51:39,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:51:39,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:51:39,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:51:39,583 INFO L87 Difference]: Start difference. First operand 1452 states and 1692 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:51:55,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:51:55,557 INFO L93 Difference]: Finished difference Result 2992 states and 3471 transitions. [2024-11-24 00:51:55,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:51:55,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 113 [2024-11-24 00:51:55,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:51:55,573 INFO L225 Difference]: With dead ends: 2992 [2024-11-24 00:51:55,573 INFO L226 Difference]: Without dead ends: 1543 [2024-11-24 00:51:55,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:51:55,576 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 30 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:51:55,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 382 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2024-11-24 00:51:55,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2024-11-24 00:51:55,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 754. [2024-11-24 00:51:55,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 695 states have (on average 1.1424460431654677) internal successors, (794), 698 states have internal predecessors, (794), 41 states have call successors, (41), 17 states have call predecessors, (41), 17 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-24 00:51:55,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 876 transitions. [2024-11-24 00:51:55,651 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 876 transitions. Word has length 113 [2024-11-24 00:51:55,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:51:55,651 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 876 transitions. [2024-11-24 00:51:55,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:51:55,651 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 876 transitions. [2024-11-24 00:51:55,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-24 00:51:55,652 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:51:55,652 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:51:55,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-11-24 00:51:55,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:51:55,853 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:51:55,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:51:55,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1074756446, now seen corresponding path program 1 times [2024-11-24 00:51:55,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:51:55,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176745060] [2024-11-24 00:51:55,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:51:55,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:51:55,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:51:55,856 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:51:55,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-11-24 00:51:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:51:56,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-24 00:51:56,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:51:56,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-24 00:51:56,452 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 [2024-11-24 00:51:56,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2024-11-24 00:51:57,361 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:51:57,361 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 56 treesize of output 35 [2024-11-24 00:51:58,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-24 00:51:59,627 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 146 proven. 21 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-24 00:51:59,627 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:52:04,666 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:52:04,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176745060] [2024-11-24 00:52:04,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176745060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:52:04,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [604417988] [2024-11-24 00:52:04,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:04,667 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:52:04,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:52:04,669 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:52:04,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2024-11-24 00:52:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:06,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 00:52:06,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:52:06,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-24 00:52:07,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:52:08,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-24 00:52:08,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2024-11-24 00:52:10,114 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 17 treesize of output 13 [2024-11-24 00:52:10,976 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:52:10,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 46 [2024-11-24 00:52:12,545 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 28 treesize of output 16 [2024-11-24 00:52:17,097 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 144 proven. 15 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-24 00:52:17,098 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:52:25,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [604417988] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:52:25,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:52:25,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 31 [2024-11-24 00:52:25,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903342857] [2024-11-24 00:52:25,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:52:25,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-24 00:52:25,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:52:25,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-24 00:52:25,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=1955, Unknown=1, NotChecked=0, Total=2256 [2024-11-24 00:52:25,089 INFO L87 Difference]: Start difference. First operand 754 states and 876 transitions. Second operand has 32 states, 29 states have (on average 4.137931034482759) internal successors, (120), 30 states have internal predecessors, (120), 9 states have call successors, (22), 7 states have call predecessors, (22), 9 states have return successors, (22), 6 states have call predecessors, (22), 9 states have call successors, (22) [2024-11-24 00:53:00,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:53:00,655 INFO L93 Difference]: Finished difference Result 1463 states and 1702 transitions. [2024-11-24 00:53:00,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-24 00:53:00,656 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 4.137931034482759) internal successors, (120), 30 states have internal predecessors, (120), 9 states have call successors, (22), 7 states have call predecessors, (22), 9 states have return successors, (22), 6 states have call predecessors, (22), 9 states have call successors, (22) Word has length 115 [2024-11-24 00:53:00,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:53:00,658 INFO L225 Difference]: With dead ends: 1463 [2024-11-24 00:53:00,658 INFO L226 Difference]: Without dead ends: 1069 [2024-11-24 00:53:00,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 266 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1737 ImplicationChecksByTransitivity, 31.0s TimeCoverageRelationStatistics Valid=1093, Invalid=5226, Unknown=1, NotChecked=0, Total=6320 [2024-11-24 00:53:00,661 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 974 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:53:00,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 2550 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 26.9s Time] [2024-11-24 00:53:00,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2024-11-24 00:53:00,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 793. [2024-11-24 00:53:00,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 731 states have (on average 1.1409028727770179) internal successors, (834), 734 states have internal predecessors, (834), 41 states have call successors, (41), 20 states have call predecessors, (41), 20 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-24 00:53:00,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 916 transitions. [2024-11-24 00:53:00,749 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 916 transitions. Word has length 115 [2024-11-24 00:53:00,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:53:00,750 INFO L471 AbstractCegarLoop]: Abstraction has 793 states and 916 transitions. [2024-11-24 00:53:00,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 4.137931034482759) internal successors, (120), 30 states have internal predecessors, (120), 9 states have call successors, (22), 7 states have call predecessors, (22), 9 states have return successors, (22), 6 states have call predecessors, (22), 9 states have call successors, (22) [2024-11-24 00:53:00,750 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 916 transitions. [2024-11-24 00:53:00,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-24 00:53:00,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:53:00,752 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:53:00,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-11-24 00:53:00,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2024-11-24 00:53:01,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:53:01,152 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:53:01,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:01,153 INFO L85 PathProgramCache]: Analyzing trace with hash 565283356, now seen corresponding path program 1 times [2024-11-24 00:53:01,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:53:01,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550963960] [2024-11-24 00:53:01,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:01,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:53:01,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:53:01,155 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:53:01,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-11-24 00:53:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:01,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-24 00:53:01,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:53:02,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:53:02,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-24 00:53:02,749 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:53:02,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2024-11-24 00:53:03,596 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 43 treesize of output 31 [2024-11-24 00:53:03,756 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:53:03,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 58 [2024-11-24 00:53:04,241 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 57 treesize of output 45 [2024-11-24 00:53:04,248 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:53:04,248 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 91 treesize of output 55 [2024-11-24 00:53:04,448 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 152 proven. 15 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-24 00:53:04,448 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:53:04,812 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 00:53:04,812 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:53:04,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550963960] [2024-11-24 00:53:04,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550963960] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:53:04,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:53:04,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 20 [2024-11-24 00:53:04,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780992819] [2024-11-24 00:53:04,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:04,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:53:04,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:53:04,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:53:04,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:53:04,813 INFO L87 Difference]: Start difference. First operand 793 states and 916 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:53:05,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:53:05,552 INFO L93 Difference]: Finished difference Result 1322 states and 1543 transitions. [2024-11-24 00:53:05,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:53:05,553 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 115 [2024-11-24 00:53:05,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:53:05,556 INFO L225 Difference]: With dead ends: 1322 [2024-11-24 00:53:05,557 INFO L226 Difference]: Without dead ends: 886 [2024-11-24 00:53:05,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:53:05,558 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 62 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:53:05,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 898 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:53:05,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-11-24 00:53:05,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 692. [2024-11-24 00:53:05,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 630 states have (on average 1.1412698412698412) internal successors, (719), 633 states have internal predecessors, (719), 41 states have call successors, (41), 20 states have call predecessors, (41), 20 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-24 00:53:05,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 801 transitions. [2024-11-24 00:53:05,649 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 801 transitions. Word has length 115 [2024-11-24 00:53:05,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:53:05,649 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 801 transitions. [2024-11-24 00:53:05,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:53:05,650 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 801 transitions. [2024-11-24 00:53:05,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-24 00:53:05,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:53:05,651 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:53:05,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-11-24 00:53:05,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:53:05,852 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:53:05,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:05,852 INFO L85 PathProgramCache]: Analyzing trace with hash 402458080, now seen corresponding path program 1 times [2024-11-24 00:53:05,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:53:05,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624222968] [2024-11-24 00:53:05,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:05,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:53:05,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:53:05,854 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:53:05,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-11-24 00:53:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:06,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 00:53:06,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:53:15,858 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 135 treesize of output 87 [2024-11-24 00:53:15,881 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:53:15,882 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 99 treesize of output 39 [2024-11-24 00:53:17,369 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 650 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-11-24 00:53:17,369 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:53:17,369 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:53:17,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624222968] [2024-11-24 00:53:17,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624222968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:53:17,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:53:17,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:53:17,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785381047] [2024-11-24 00:53:17,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:17,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:53:17,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:53:17,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:53:17,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:53:17,371 INFO L87 Difference]: Start difference. First operand 692 states and 801 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 9 states have internal predecessors, (112), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 00:53:29,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:53:29,684 INFO L93 Difference]: Finished difference Result 1799 states and 2075 transitions. [2024-11-24 00:53:29,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:53:29,685 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 9 states have internal predecessors, (112), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 216 [2024-11-24 00:53:29,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:53:29,688 INFO L225 Difference]: With dead ends: 1799 [2024-11-24 00:53:29,688 INFO L226 Difference]: Without dead ends: 1370 [2024-11-24 00:53:29,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:53:29,689 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 220 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:53:29,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 915 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-11-24 00:53:29,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2024-11-24 00:53:29,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1339. [2024-11-24 00:53:29,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1216 states have (on average 1.131578947368421) internal successors, (1376), 1227 states have internal predecessors, (1376), 82 states have call successors, (82), 40 states have call predecessors, (82), 40 states have return successors, (82), 71 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-24 00:53:29,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1540 transitions. [2024-11-24 00:53:29,841 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1540 transitions. Word has length 216 [2024-11-24 00:53:29,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:53:29,841 INFO L471 AbstractCegarLoop]: Abstraction has 1339 states and 1540 transitions. [2024-11-24 00:53:29,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 9 states have internal predecessors, (112), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 00:53:29,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1540 transitions. [2024-11-24 00:53:29,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-24 00:53:29,844 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:53:29,844 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 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, 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] [2024-11-24 00:53:29,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2024-11-24 00:53:30,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:53:30,044 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:53:30,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:30,045 INFO L85 PathProgramCache]: Analyzing trace with hash 413491589, now seen corresponding path program 1 times [2024-11-24 00:53:30,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:53:30,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084719803] [2024-11-24 00:53:30,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:30,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:53:30,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:53:30,048 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:53:30,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-11-24 00:53:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:30,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:53:30,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:53:30,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:53:30,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:53:30,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-24 00:53:31,175 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 17 treesize of output 13 [2024-11-24 00:53:31,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:53:31,244 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 48 treesize of output 30 [2024-11-24 00:53:31,325 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 28 treesize of output 16 [2024-11-24 00:53:31,434 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 667 proven. 15 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-11-24 00:53:31,434 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:53:32,145 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 54 proven. 48 refuted. 0 times theorem prover too weak. 881 trivial. 0 not checked. [2024-11-24 00:53:32,145 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:53:32,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084719803] [2024-11-24 00:53:32,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084719803] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:53:32,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:53:32,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2024-11-24 00:53:32,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133006457] [2024-11-24 00:53:32,145 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:53:32,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:53:32,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:53:32,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:53:32,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:53:32,147 INFO L87 Difference]: Start difference. First operand 1339 states and 1540 transitions. Second operand has 16 states, 14 states have (on average 8.642857142857142) internal successors, (121), 16 states have internal predecessors, (121), 6 states have call successors, (39), 4 states have call predecessors, (39), 6 states have return successors, (39), 4 states have call predecessors, (39), 6 states have call successors, (39) [2024-11-24 00:53:35,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:53:35,473 INFO L93 Difference]: Finished difference Result 2244 states and 2596 transitions. [2024-11-24 00:53:35,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 00:53:35,475 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 8.642857142857142) internal successors, (121), 16 states have internal predecessors, (121), 6 states have call successors, (39), 4 states have call predecessors, (39), 6 states have return successors, (39), 4 states have call predecessors, (39), 6 states have call successors, (39) Word has length 218 [2024-11-24 00:53:35,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:53:35,478 INFO L225 Difference]: With dead ends: 2244 [2024-11-24 00:53:35,478 INFO L226 Difference]: Without dead ends: 1392 [2024-11-24 00:53:35,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 420 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2024-11-24 00:53:35,479 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 306 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:53:35,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 812 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-24 00:53:35,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2024-11-24 00:53:35,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1188. [2024-11-24 00:53:35,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1064 states have (on average 1.1268796992481203) internal successors, (1199), 1074 states have internal predecessors, (1199), 78 states have call successors, (78), 45 states have call predecessors, (78), 45 states have return successors, (78), 68 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-24 00:53:35,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1355 transitions. [2024-11-24 00:53:35,637 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1355 transitions. Word has length 218 [2024-11-24 00:53:35,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:53:35,637 INFO L471 AbstractCegarLoop]: Abstraction has 1188 states and 1355 transitions. [2024-11-24 00:53:35,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 8.642857142857142) internal successors, (121), 16 states have internal predecessors, (121), 6 states have call successors, (39), 4 states have call predecessors, (39), 6 states have return successors, (39), 4 states have call predecessors, (39), 6 states have call successors, (39) [2024-11-24 00:53:35,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1355 transitions. [2024-11-24 00:53:35,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-24 00:53:35,639 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:53:35,640 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 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, 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] [2024-11-24 00:53:35,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-11-24 00:53:35,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:53:35,840 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:53:35,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:35,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1663724091, now seen corresponding path program 1 times [2024-11-24 00:53:35,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:53:35,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666115532] [2024-11-24 00:53:35,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:35,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:53:35,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:53:35,843 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:53:35,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-11-24 00:53:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:36,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-24 00:53:36,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:53:37,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:53:37,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:53:37,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:53:38,022 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 44 treesize of output 32 [2024-11-24 00:53:38,028 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 35 treesize of output 23 [2024-11-24 00:53:38,433 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 19 treesize of output 11 [2024-11-24 00:53:39,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:53:39,661 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 25 [2024-11-24 00:53:41,433 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:53:41,433 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 67 treesize of output 42 [2024-11-24 00:53:43,024 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:53:43,024 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 68 treesize of output 32 [2024-11-24 00:53:43,474 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 244 proven. 559 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-24 00:53:43,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:53:46,675 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 959 trivial. 0 not checked. [2024-11-24 00:53:46,675 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:53:46,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666115532] [2024-11-24 00:53:46,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666115532] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:53:46,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:53:46,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [21] total 27 [2024-11-24 00:53:46,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289892935] [2024-11-24 00:53:46,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:46,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:53:46,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:53:46,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:53:46,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:53:46,677 INFO L87 Difference]: Start difference. First operand 1188 states and 1355 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:53:50,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:53:50,213 INFO L93 Difference]: Finished difference Result 1878 states and 2126 transitions. [2024-11-24 00:53:50,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:53:50,215 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 218 [2024-11-24 00:53:50,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:53:50,217 INFO L225 Difference]: With dead ends: 1878 [2024-11-24 00:53:50,217 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 00:53:50,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 408 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=127, Invalid=685, Unknown=0, NotChecked=0, Total=812 [2024-11-24 00:53:50,219 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 58 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:53:50,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 415 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 00:53:50,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 00:53:50,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 00:53:50,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:53:50,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 00:53:50,220 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 218 [2024-11-24 00:53:50,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:53:50,221 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:53:50,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-24 00:53:50,221 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 00:53:50,221 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 00:53:50,224 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:53:50,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2024-11-24 00:53:50,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c417935-9bd6-40f9-b5c6-58aa10c4bb7c/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:53:50,427 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:53:50,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.