./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/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_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/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 64bit --witnessprinter.graph.data.programhash ef92dd0c18fa389aa454198685fbcc052698924a127f9f39b737e9548a23680b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:39:48,712 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:39:48,800 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 01:39:48,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:39:48,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:39:48,861 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:39:48,861 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:39:48,862 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:39:48,862 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:39:48,864 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:39:48,865 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:39:48,865 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:39:48,865 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:39:48,865 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:39:48,865 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:39:48,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:39:48,866 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:39:48,866 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:39:48,866 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:39:48,866 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:39:48,866 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:39:48,866 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:39:48,866 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:39:48,867 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:39:48,867 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:39:48,867 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:39:48,867 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:39:48,867 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:39:48,867 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:39:48,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:39:48,867 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:39:48,868 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:39:48,868 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:39:48,868 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:39:48,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:39:48,868 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:39:48,868 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:39:48,869 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:39:48,869 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:39:48,869 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:39:48,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:39:48,869 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:39:48,869 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:39:48,870 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:39:48,870 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:39:48,870 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_c991f8c6-d981-4273-8ecc-d92984a6a437/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef92dd0c18fa389aa454198685fbcc052698924a127f9f39b737e9548a23680b [2024-11-24 01:39:49,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:39:49,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:39:49,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:39:49,256 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:39:49,256 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:39:49,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2024-11-24 01:39:52,381 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/data/eee82ce07/a5831608998c4483ac6394f3c1a90cac/FLAG0944f118e [2024-11-24 01:39:53,068 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:39:53,072 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2024-11-24 01:39:53,137 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/data/eee82ce07/a5831608998c4483ac6394f3c1a90cac/FLAG0944f118e [2024-11-24 01:39:53,459 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/data/eee82ce07/a5831608998c4483ac6394f3c1a90cac [2024-11-24 01:39:53,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:39:53,465 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:39:53,469 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:39:53,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:39:53,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:39:53,476 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:39:53" (1/1) ... [2024-11-24 01:39:53,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a0e3eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:39:53, skipping insertion in model container [2024-11-24 01:39:53,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:39:53" (1/1) ... [2024-11-24 01:39:53,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:39:54,432 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_c991f8c6-d981-4273-8ecc-d92984a6a437/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i[160969,160982] [2024-11-24 01:39:54,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:39:54,804 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:39:55,039 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_c991f8c6-d981-4273-8ecc-d92984a6a437/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i[160969,160982] [2024-11-24 01:39:55,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:39:55,172 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:39:55,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:39:55 WrapperNode [2024-11-24 01:39:55,173 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:39:55,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:39:55,175 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:39:55,175 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:39:55,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:39:55" (1/1) ... [2024-11-24 01:39:55,231 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:39:55" (1/1) ... [2024-11-24 01:39:55,336 INFO L138 Inliner]: procedures = 101, calls = 399, calls flagged for inlining = 41, calls inlined = 38, statements flattened = 1034 [2024-11-24 01:39:55,337 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:39:55,337 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:39:55,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:39:55,338 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:39:55,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:39:55" (1/1) ... [2024-11-24 01:39:55,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:39:55" (1/1) ... [2024-11-24 01:39:55,359 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:39:55" (1/1) ... [2024-11-24 01:39:55,427 INFO L175 MemorySlicer]: Split 259 memory accesses to 11 slices as follows [90, 2, 21, 7, 19, 44, 17, 33, 3, 2, 21]. 35 percent of accesses are in the largest equivalence class. The 78 initializations are split as follows [0, 2, 21, 7, 0, 0, 15, 33, 0, 0, 0]. The 113 writes are split as follows [29, 0, 0, 0, 19, 44, 1, 0, 1, 1, 18]. [2024-11-24 01:39:55,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:39:55" (1/1) ... [2024-11-24 01:39:55,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:39:55" (1/1) ... [2024-11-24 01:39:55,516 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:39:55" (1/1) ... [2024-11-24 01:39:55,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:39:55" (1/1) ... [2024-11-24 01:39:55,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:39:55" (1/1) ... [2024-11-24 01:39:55,556 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:39:55" (1/1) ... [2024-11-24 01:39:55,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:39:55" (1/1) ... [2024-11-24 01:39:55,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:39:55,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:39:55,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:39:55,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:39:55,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:39:55" (1/1) ... [2024-11-24 01:39:55,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:39:55,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:39:55,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:39:55,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:39:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 01:39:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 01:39:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 01:39:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 01:39:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 01:39:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 01:39:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-24 01:39:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-24 01:39:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-24 01:39:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-24 01:39:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-24 01:39:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-24 01:39:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-24 01:39:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-24 01:39:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-24 01:39:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-24 01:39:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-24 01:39:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-24 01:39:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-24 01:39:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-24 01:39:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-11-24 01:39:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-11-24 01:39:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 01:39:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 01:39:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 01:39:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 01:39:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 01:39:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 01:39:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-24 01:39:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-24 01:39:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-24 01:39:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-24 01:39:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-24 01:39:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-24 01:39:55,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-24 01:39:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:39:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:39:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 01:39:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 01:39:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 01:39:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 01:39:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 01:39:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 01:39:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-24 01:39:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-24 01:39:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-24 01:39:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2024-11-24 01:39:55,673 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2024-11-24 01:39:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-24 01:39:55,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-24 01:39:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-24 01:39:55,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-24 01:39:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-24 01:39:55,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-24 01:39:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:39:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:39:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 01:39:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 01:39:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 01:39:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 01:39:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 01:39:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 01:39:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-24 01:39:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-24 01:39:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-24 01:39:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-24 01:39:55,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-24 01:39:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-11-24 01:39:55,676 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-11-24 01:39:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-24 01:39:55,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-24 01:39:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-24 01:39:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-24 01:39:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-24 01:39:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-24 01:39:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-24 01:39:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-24 01:39:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-24 01:39:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-24 01:39:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-24 01:39:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-24 01:39:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-11-24 01:39:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-24 01:39:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-24 01:39:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-24 01:39:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-24 01:39:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-24 01:39:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-24 01:39:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-24 01:39:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-24 01:39:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-24 01:39:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-24 01:39:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-11-24 01:39:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:39:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:39:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:39:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:39:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2024-11-24 01:39:55,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2024-11-24 01:39:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 01:39:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 01:39:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 01:39:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 01:39:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 01:39:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 01:39:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 01:39:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 01:39:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-24 01:39:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-24 01:39:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-24 01:39:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 01:39:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 01:39:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 01:39:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 01:39:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 01:39:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 01:39:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 01:39:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 01:39:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 01:39:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-24 01:39:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-24 01:39:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-24 01:39:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_tx_fixup [2024-11-24 01:39:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_tx_fixup [2024-11-24 01:39:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_rx_fixup [2024-11-24 01:39:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_rx_fixup [2024-11-24 01:39:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:39:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 01:39:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 01:39:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 01:39:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 01:39:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 01:39:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 01:39:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 01:39:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-24 01:39:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-24 01:39:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-24 01:39:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-24 01:39:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-24 01:39:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-24 01:39:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:39:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:39:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:39:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:39:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 01:39:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 01:39:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 01:39:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 01:39:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 01:39:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 01:39:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-24 01:39:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-24 01:39:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-24 01:39:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-24 01:39:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-24 01:39:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-24 01:39:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-24 01:39:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-24 01:39:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-24 01:39:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-24 01:39:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-11-24 01:39:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-11-24 01:39:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-24 01:39:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-24 01:39:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:39:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:39:56,146 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:39:56,149 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:39:56,183 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-24 01:40:02,000 INFO L? ?]: Removed 434 outVars from TransFormulas that were not future-live. [2024-11-24 01:40:02,001 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:40:02,020 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:40:02,020 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:40:02,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:40:02 BoogieIcfgContainer [2024-11-24 01:40:02,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:40:02,023 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:40:02,023 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:40:02,028 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:40:02,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:39:53" (1/3) ... [2024-11-24 01:40:02,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b64dcd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:40:02, skipping insertion in model container [2024-11-24 01:40:02,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:39:55" (2/3) ... [2024-11-24 01:40:02,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b64dcd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:40:02, skipping insertion in model container [2024-11-24 01:40:02,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:40:02" (3/3) ... [2024-11-24 01:40:02,031 INFO L128 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2024-11-24 01:40:02,048 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:40:02,050 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i that has 26 procedures, 296 locations, 1 initial locations, 16 loop locations, and 1 error locations. [2024-11-24 01:40:02,116 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:40:02,136 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;@6fb2077e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:40:02,136 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:40:02,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 259 states, 203 states have (on average 1.3940886699507389) internal successors, (283), 209 states have internal predecessors, (283), 39 states have call successors, (39), 16 states have call predecessors, (39), 15 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-24 01:40:02,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-24 01:40:02,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:40:02,152 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:40:02,152 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:40:02,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:40:02,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1953970243, now seen corresponding path program 1 times [2024-11-24 01:40:02,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:40:02,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781747390] [2024-11-24 01:40:02,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:02,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:40:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:03,635 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 01:40:03,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:40:03,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781747390] [2024-11-24 01:40:03,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781747390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:40:03,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:40:03,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:40:03,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633994175] [2024-11-24 01:40:03,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:40:03,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:40:03,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:40:03,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:40:03,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:40:03,677 INFO L87 Difference]: Start difference. First operand has 259 states, 203 states have (on average 1.3940886699507389) internal successors, (283), 209 states have internal predecessors, (283), 39 states have call successors, (39), 16 states have call predecessors, (39), 15 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-24 01:40:07,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:40:07,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:40:07,949 INFO L93 Difference]: Finished difference Result 725 states and 1046 transitions. [2024-11-24 01:40:07,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:40:07,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2024-11-24 01:40:07,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:40:07,965 INFO L225 Difference]: With dead ends: 725 [2024-11-24 01:40:07,965 INFO L226 Difference]: Without dead ends: 455 [2024-11-24 01:40:07,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:40:07,974 INFO L435 NwaCegarLoop]: 358 mSDtfsCounter, 297 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:40:07,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 689 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-24 01:40:07,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-24 01:40:08,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2024-11-24 01:40:08,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 366 states have (on average 1.366120218579235) internal successors, (500), 366 states have internal predecessors, (500), 62 states have call successors, (62), 27 states have call predecessors, (62), 26 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-24 01:40:08,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 623 transitions. [2024-11-24 01:40:08,114 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 623 transitions. Word has length 42 [2024-11-24 01:40:08,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:40:08,114 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 623 transitions. [2024-11-24 01:40:08,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-24 01:40:08,115 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 623 transitions. [2024-11-24 01:40:08,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-24 01:40:08,122 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:40:08,122 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:08,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:40:08,123 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:40:08,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:40:08,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1161460593, now seen corresponding path program 1 times [2024-11-24 01:40:08,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:40:08,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926814202] [2024-11-24 01:40:08,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:08,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:40:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:09,324 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 01:40:09,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:40:09,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926814202] [2024-11-24 01:40:09,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926814202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:40:09,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:40:09,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:40:09,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190479282] [2024-11-24 01:40:09,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:40:09,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:40:09,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:40:09,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:40:09,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:40:09,328 INFO L87 Difference]: Start difference. First operand 455 states and 623 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 01:40:09,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:40:09,571 INFO L93 Difference]: Finished difference Result 1322 states and 1831 transitions. [2024-11-24 01:40:09,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:40:09,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2024-11-24 01:40:09,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:40:09,590 INFO L225 Difference]: With dead ends: 1322 [2024-11-24 01:40:09,590 INFO L226 Difference]: Without dead ends: 881 [2024-11-24 01:40:09,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:40:09,598 INFO L435 NwaCegarLoop]: 345 mSDtfsCounter, 309 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:40:09,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 1343 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:40:09,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-11-24 01:40:09,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2024-11-24 01:40:09,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 711 states have (on average 1.3670886075949367) internal successors, (972), 711 states have internal predecessors, (972), 119 states have call successors, (119), 51 states have call predecessors, (119), 50 states have return successors, (124), 118 states have call predecessors, (124), 118 states have call successors, (124) [2024-11-24 01:40:09,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1215 transitions. [2024-11-24 01:40:09,713 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1215 transitions. Word has length 52 [2024-11-24 01:40:09,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:40:09,714 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1215 transitions. [2024-11-24 01:40:09,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 01:40:09,714 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1215 transitions. [2024-11-24 01:40:09,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-24 01:40:09,726 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:40:09,727 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:09,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:40:09,727 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:40:09,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:40:09,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1955503532, now seen corresponding path program 1 times [2024-11-24 01:40:09,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:40:09,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549657289] [2024-11-24 01:40:09,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:09,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:40:10,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:10,527 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-24 01:40:10,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:40:10,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549657289] [2024-11-24 01:40:10,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549657289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:40:10,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:40:10,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:40:10,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407210599] [2024-11-24 01:40:10,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:40:10,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:40:10,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:40:10,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:40:10,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:40:10,529 INFO L87 Difference]: Start difference. First operand 881 states and 1215 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 01:40:10,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:40:10,705 INFO L93 Difference]: Finished difference Result 1972 states and 2737 transitions. [2024-11-24 01:40:10,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:40:10,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2024-11-24 01:40:10,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:40:10,718 INFO L225 Difference]: With dead ends: 1972 [2024-11-24 01:40:10,720 INFO L226 Difference]: Without dead ends: 1111 [2024-11-24 01:40:10,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:40:10,728 INFO L435 NwaCegarLoop]: 348 mSDtfsCounter, 115 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:40:10,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 640 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:40:10,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2024-11-24 01:40:10,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1102. [2024-11-24 01:40:10,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 909 states have (on average 1.3916391639163916) internal successors, (1265), 909 states have internal predecessors, (1265), 132 states have call successors, (132), 61 states have call predecessors, (132), 60 states have return successors, (137), 131 states have call predecessors, (137), 131 states have call successors, (137) [2024-11-24 01:40:10,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1534 transitions. [2024-11-24 01:40:10,852 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1534 transitions. Word has length 125 [2024-11-24 01:40:10,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:40:10,854 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1534 transitions. [2024-11-24 01:40:10,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 01:40:10,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1534 transitions. [2024-11-24 01:40:10,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 01:40:10,865 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:40:10,866 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:10,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:40:10,866 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:40:10,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:40:10,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1053291948, now seen corresponding path program 1 times [2024-11-24 01:40:10,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:40:10,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104304662] [2024-11-24 01:40:10,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:10,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:40:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:11,756 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-24 01:40:11,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:40:11,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104304662] [2024-11-24 01:40:11,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104304662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:40:11,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:40:11,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:40:11,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842195720] [2024-11-24 01:40:11,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:40:11,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:40:11,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:40:11,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:40:11,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:40:11,763 INFO L87 Difference]: Start difference. First operand 1102 states and 1534 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:40:15,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:40:16,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:40:16,121 INFO L93 Difference]: Finished difference Result 2918 states and 4063 transitions. [2024-11-24 01:40:16,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:40:16,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 147 [2024-11-24 01:40:16,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:40:16,136 INFO L225 Difference]: With dead ends: 2918 [2024-11-24 01:40:16,136 INFO L226 Difference]: Without dead ends: 1847 [2024-11-24 01:40:16,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:40:16,141 INFO L435 NwaCegarLoop]: 415 mSDtfsCounter, 283 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:40:16,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 697 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-24 01:40:16,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2024-11-24 01:40:16,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1838. [2024-11-24 01:40:16,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1515 states have (on average 1.3762376237623761) internal successors, (2085), 1515 states have internal predecessors, (2085), 218 states have call successors, (218), 105 states have call predecessors, (218), 104 states have return successors, (225), 217 states have call predecessors, (225), 217 states have call successors, (225) [2024-11-24 01:40:16,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2528 transitions. [2024-11-24 01:40:16,272 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2528 transitions. Word has length 147 [2024-11-24 01:40:16,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:40:16,274 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2528 transitions. [2024-11-24 01:40:16,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:40:16,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2528 transitions. [2024-11-24 01:40:16,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 01:40:16,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:40:16,285 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:16,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:40:16,286 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:40:16,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:40:16,287 INFO L85 PathProgramCache]: Analyzing trace with hash -96506492, now seen corresponding path program 1 times [2024-11-24 01:40:16,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:40:16,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208319811] [2024-11-24 01:40:16,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:16,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:40:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-24 01:40:17,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:40:17,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208319811] [2024-11-24 01:40:17,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208319811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:40:17,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:40:17,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:40:17,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635812884] [2024-11-24 01:40:17,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:40:17,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:40:17,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:40:17,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:40:17,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:40:17,504 INFO L87 Difference]: Start difference. First operand 1838 states and 2528 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:40:17,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:40:17,666 INFO L93 Difference]: Finished difference Result 3683 states and 5100 transitions. [2024-11-24 01:40:17,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:40:17,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 147 [2024-11-24 01:40:17,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:40:17,683 INFO L225 Difference]: With dead ends: 3683 [2024-11-24 01:40:17,683 INFO L226 Difference]: Without dead ends: 1876 [2024-11-24 01:40:17,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:40:17,692 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 0 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:40:17,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1335 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:40:17,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2024-11-24 01:40:17,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1870. [2024-11-24 01:40:17,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1870 states, 1539 states have (on average 1.3703703703703705) internal successors, (2109), 1539 states have internal predecessors, (2109), 218 states have call successors, (218), 105 states have call predecessors, (218), 112 states have return successors, (241), 225 states have call predecessors, (241), 217 states have call successors, (241) [2024-11-24 01:40:17,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2568 transitions. [2024-11-24 01:40:17,821 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2568 transitions. Word has length 147 [2024-11-24 01:40:17,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:40:17,822 INFO L471 AbstractCegarLoop]: Abstraction has 1870 states and 2568 transitions. [2024-11-24 01:40:17,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:40:17,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2568 transitions. [2024-11-24 01:40:17,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-24 01:40:17,829 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:40:17,829 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:17,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:40:17,829 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:40:17,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:40:17,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1047595038, now seen corresponding path program 1 times [2024-11-24 01:40:17,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:40:17,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982062844] [2024-11-24 01:40:17,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:17,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:40:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-24 01:40:19,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:40:19,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982062844] [2024-11-24 01:40:19,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982062844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:40:19,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:40:19,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 01:40:19,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246084631] [2024-11-24 01:40:19,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:40:19,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:40:19,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:40:19,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:40:19,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:40:19,362 INFO L87 Difference]: Start difference. First operand 1870 states and 2568 transitions. Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 9 states have internal predecessors, (92), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-24 01:40:19,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:40:19,799 INFO L93 Difference]: Finished difference Result 3765 states and 5185 transitions. [2024-11-24 01:40:19,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:40:19,800 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 9 states have internal predecessors, (92), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 154 [2024-11-24 01:40:19,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:40:19,814 INFO L225 Difference]: With dead ends: 3765 [2024-11-24 01:40:19,814 INFO L226 Difference]: Without dead ends: 1926 [2024-11-24 01:40:19,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:40:19,821 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 15 mSDsluCounter, 2964 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 3297 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:40:19,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 3297 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:40:19,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2024-11-24 01:40:19,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1902. [2024-11-24 01:40:19,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1563 states have (on average 1.36468330134357) internal successors, (2133), 1563 states have internal predecessors, (2133), 218 states have call successors, (218), 105 states have call predecessors, (218), 120 states have return successors, (249), 233 states have call predecessors, (249), 217 states have call successors, (249) [2024-11-24 01:40:19,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2600 transitions. [2024-11-24 01:40:19,992 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2600 transitions. Word has length 154 [2024-11-24 01:40:19,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:40:19,993 INFO L471 AbstractCegarLoop]: Abstraction has 1902 states and 2600 transitions. [2024-11-24 01:40:19,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 9 states have internal predecessors, (92), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-24 01:40:19,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2600 transitions. [2024-11-24 01:40:20,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:40:20,001 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:40:20,002 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:20,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:40:20,002 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:40:20,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:40:20,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1494249516, now seen corresponding path program 1 times [2024-11-24 01:40:20,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:40:20,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220128285] [2024-11-24 01:40:20,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:20,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:40:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:21,153 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-24 01:40:21,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:40:21,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220128285] [2024-11-24 01:40:21,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220128285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:40:21,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:40:21,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:40:21,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619126505] [2024-11-24 01:40:21,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:40:21,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:40:21,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:40:21,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:40:21,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:40:21,156 INFO L87 Difference]: Start difference. First operand 1902 states and 2600 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 01:40:21,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:40:21,300 INFO L93 Difference]: Finished difference Result 3783 states and 5177 transitions. [2024-11-24 01:40:21,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:40:21,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 160 [2024-11-24 01:40:21,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:40:21,315 INFO L225 Difference]: With dead ends: 3783 [2024-11-24 01:40:21,316 INFO L226 Difference]: Without dead ends: 1903 [2024-11-24 01:40:21,321 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 01:40:21,323 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 0 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:40:21,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1003 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:40:21,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2024-11-24 01:40:21,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 1903. [2024-11-24 01:40:21,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1903 states, 1564 states have (on average 1.3644501278772379) internal successors, (2134), 1564 states have internal predecessors, (2134), 218 states have call successors, (218), 105 states have call predecessors, (218), 120 states have return successors, (249), 233 states have call predecessors, (249), 217 states have call successors, (249) [2024-11-24 01:40:21,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2601 transitions. [2024-11-24 01:40:21,444 INFO L78 Accepts]: Start accepts. Automaton has 1903 states and 2601 transitions. Word has length 160 [2024-11-24 01:40:21,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:40:21,445 INFO L471 AbstractCegarLoop]: Abstraction has 1903 states and 2601 transitions. [2024-11-24 01:40:21,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 01:40:21,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1903 states and 2601 transitions. [2024-11-24 01:40:21,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-24 01:40:21,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:40:21,452 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:21,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:40:21,452 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:40:21,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:40:21,454 INFO L85 PathProgramCache]: Analyzing trace with hash -2096276946, now seen corresponding path program 1 times [2024-11-24 01:40:21,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:40:21,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830280496] [2024-11-24 01:40:21,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:21,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:40:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:22,741 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-24 01:40:22,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:40:22,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830280496] [2024-11-24 01:40:22,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830280496] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:40:22,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099086609] [2024-11-24 01:40:22,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:22,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:40:22,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:40:22,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:40:22,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:40:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:24,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 01:40:24,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:40:24,236 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 1 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-24 01:40:24,240 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:40:24,786 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-24 01:40:24,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099086609] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:40:24,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:40:24,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 6] total 10 [2024-11-24 01:40:24,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266377683] [2024-11-24 01:40:24,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:40:24,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:40:24,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:40:24,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:40:24,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:40:24,790 INFO L87 Difference]: Start difference. First operand 1903 states and 2601 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 01:40:24,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:40:24,897 INFO L93 Difference]: Finished difference Result 3778 states and 5171 transitions. [2024-11-24 01:40:24,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:40:24,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 161 [2024-11-24 01:40:24,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:40:24,912 INFO L225 Difference]: With dead ends: 3778 [2024-11-24 01:40:24,912 INFO L226 Difference]: Without dead ends: 1904 [2024-11-24 01:40:24,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:40:24,918 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 0 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:40:24,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 669 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:40:24,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904 states. [2024-11-24 01:40:25,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904 to 1904. [2024-11-24 01:40:25,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1904 states, 1565 states have (on average 1.3642172523961662) internal successors, (2135), 1565 states have internal predecessors, (2135), 218 states have call successors, (218), 105 states have call predecessors, (218), 120 states have return successors, (249), 233 states have call predecessors, (249), 217 states have call successors, (249) [2024-11-24 01:40:25,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2602 transitions. [2024-11-24 01:40:25,039 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2602 transitions. Word has length 161 [2024-11-24 01:40:25,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:40:25,040 INFO L471 AbstractCegarLoop]: Abstraction has 1904 states and 2602 transitions. [2024-11-24 01:40:25,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 01:40:25,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2602 transitions. [2024-11-24 01:40:25,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-24 01:40:25,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:40:25,047 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:25,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:40:25,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:40:25,252 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:40:25,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:40:25,253 INFO L85 PathProgramCache]: Analyzing trace with hash -678472142, now seen corresponding path program 1 times [2024-11-24 01:40:25,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:40:25,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353877846] [2024-11-24 01:40:25,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:25,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:40:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:26,748 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-24 01:40:26,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:40:26,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353877846] [2024-11-24 01:40:26,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353877846] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:40:26,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893963528] [2024-11-24 01:40:26,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:26,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:40:26,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:40:26,754 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:40:26,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:40:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:28,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 1773 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-24 01:40:28,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:40:29,044 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-24 01:40:29,044 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:40:29,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893963528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:40:29,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:40:29,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2024-11-24 01:40:29,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649763383] [2024-11-24 01:40:29,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:40:29,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:40:29,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:40:29,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:40:29,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:40:29,047 INFO L87 Difference]: Start difference. First operand 1904 states and 2602 transitions. Second operand has 15 states, 14 states have (on average 7.214285714285714) internal successors, (101), 12 states have internal predecessors, (101), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-24 01:40:29,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:40:29,675 INFO L93 Difference]: Finished difference Result 3861 states and 5314 transitions. [2024-11-24 01:40:29,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:40:29,676 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.214285714285714) internal successors, (101), 12 states have internal predecessors, (101), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) Word has length 162 [2024-11-24 01:40:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:40:29,691 INFO L225 Difference]: With dead ends: 3861 [2024-11-24 01:40:29,691 INFO L226 Difference]: Without dead ends: 1990 [2024-11-24 01:40:29,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:40:29,698 INFO L435 NwaCegarLoop]: 346 mSDtfsCounter, 11 mSDsluCounter, 4103 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4449 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:40:29,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4449 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:40:29,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2024-11-24 01:40:29,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1944. [2024-11-24 01:40:29,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1597 states have (on average 1.3519098309329993) internal successors, (2159), 1597 states have internal predecessors, (2159), 226 states have call successors, (226), 105 states have call predecessors, (226), 120 states have return successors, (257), 241 states have call predecessors, (257), 225 states have call successors, (257) [2024-11-24 01:40:29,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2642 transitions. [2024-11-24 01:40:29,813 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2642 transitions. Word has length 162 [2024-11-24 01:40:29,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:40:29,813 INFO L471 AbstractCegarLoop]: Abstraction has 1944 states and 2642 transitions. [2024-11-24 01:40:29,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.214285714285714) internal successors, (101), 12 states have internal predecessors, (101), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-24 01:40:29,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2642 transitions. [2024-11-24 01:40:29,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-24 01:40:29,820 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:40:29,820 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:29,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:40:30,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:40:30,025 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:40:30,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:40:30,025 INFO L85 PathProgramCache]: Analyzing trace with hash -882803592, now seen corresponding path program 1 times [2024-11-24 01:40:30,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:40:30,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664005000] [2024-11-24 01:40:30,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:30,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:40:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:31,199 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-24 01:40:31,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:40:31,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664005000] [2024-11-24 01:40:31,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664005000] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:40:31,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686994140] [2024-11-24 01:40:31,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:31,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:40:31,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:40:31,207 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:40:31,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:40:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:33,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 1862 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 01:40:33,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:40:33,130 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-24 01:40:33,130 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:40:33,694 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-24 01:40:33,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686994140] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:40:33,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:40:33,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5] total 11 [2024-11-24 01:40:33,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909814780] [2024-11-24 01:40:33,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:40:33,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:40:33,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:40:33,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:40:33,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:40:33,698 INFO L87 Difference]: Start difference. First operand 1944 states and 2642 transitions. Second operand has 11 states, 11 states have (on average 14.454545454545455) internal successors, (159), 11 states have internal predecessors, (159), 2 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:40:33,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:40:33,943 INFO L93 Difference]: Finished difference Result 3873 states and 5270 transitions. [2024-11-24 01:40:33,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:40:33,944 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.454545454545455) internal successors, (159), 11 states have internal predecessors, (159), 2 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 171 [2024-11-24 01:40:33,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:40:33,959 INFO L225 Difference]: With dead ends: 3873 [2024-11-24 01:40:33,959 INFO L226 Difference]: Without dead ends: 1948 [2024-11-24 01:40:33,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:40:33,967 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 0 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:40:33,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1332 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:40:33,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2024-11-24 01:40:34,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1948. [2024-11-24 01:40:34,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1948 states, 1601 states have (on average 1.3510306058713304) internal successors, (2163), 1601 states have internal predecessors, (2163), 226 states have call successors, (226), 105 states have call predecessors, (226), 120 states have return successors, (257), 241 states have call predecessors, (257), 225 states have call successors, (257) [2024-11-24 01:40:34,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2646 transitions. [2024-11-24 01:40:34,076 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2646 transitions. Word has length 171 [2024-11-24 01:40:34,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:40:34,076 INFO L471 AbstractCegarLoop]: Abstraction has 1948 states and 2646 transitions. [2024-11-24 01:40:34,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.454545454545455) internal successors, (159), 11 states have internal predecessors, (159), 2 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:40:34,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2646 transitions. [2024-11-24 01:40:34,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-24 01:40:34,082 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:40:34,083 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:34,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:40:34,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:40:34,285 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:40:34,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:40:34,285 INFO L85 PathProgramCache]: Analyzing trace with hash 308680662, now seen corresponding path program 2 times [2024-11-24 01:40:34,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:40:34,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86607878] [2024-11-24 01:40:34,286 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:40:34,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:40:35,021 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:40:35,022 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:40:35,721 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-24 01:40:35,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:40:35,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86607878] [2024-11-24 01:40:35,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86607878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:40:35,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878222667] [2024-11-24 01:40:35,722 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:40:35,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:40:35,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:40:35,725 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:40:35,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c991f8c6-d981-4273-8ecc-d92984a6a437/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process