./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--wireless--ath--ath6kl--ath6kl_usb.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_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/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_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/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--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/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_876a40e0-c92a-4021-91a1-66643a46dec3/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 037f6e8e4bd200c248573cc05d02b8c7bc97a7f8cca3135a2970ec46958bec59 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:35:10,448 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:35:10,527 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-23 23:35:10,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:35:10,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:35:10,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:35:10,569 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:35:10,569 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:35:10,570 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:35:10,570 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:35:10,570 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:35:10,570 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:35:10,571 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:35:10,571 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:35:10,571 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:35:10,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:35:10,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:35:10,571 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:35:10,572 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:35:10,572 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:35:10,572 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:35:10,572 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:35:10,572 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:35:10,572 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:35:10,573 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:35:10,573 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:35:10,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:35:10,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:35:10,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:35:10,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:35:10,573 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:35:10,574 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:35:10,574 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:35:10,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:35:10,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:35:10,574 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:35:10,574 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:35:10,574 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:35:10,575 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:35:10,575 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:35:10,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:35:10,575 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:35:10,575 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:35:10,575 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:35:10,575 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:35:10,575 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_876a40e0-c92a-4021-91a1-66643a46dec3/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 -> 037f6e8e4bd200c248573cc05d02b8c7bc97a7f8cca3135a2970ec46958bec59 [2024-11-23 23:35:10,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:35:10,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:35:10,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:35:10,945 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:35:10,945 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:35:10,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2024-11-23 23:35:14,134 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/data/e8ef1db49/d4d22adfa44a4151b8d6b13ae35c2855/FLAG7c1cf5499 [2024-11-23 23:35:14,739 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:35:14,740 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2024-11-23 23:35:14,799 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/data/e8ef1db49/d4d22adfa44a4151b8d6b13ae35c2855/FLAG7c1cf5499 [2024-11-23 23:35:15,202 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/data/e8ef1db49/d4d22adfa44a4151b8d6b13ae35c2855 [2024-11-23 23:35:15,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:35:15,206 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:35:15,208 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:35:15,208 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:35:15,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:35:15,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:35:15" (1/1) ... [2024-11-23 23:35:15,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e26bc5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:15, skipping insertion in model container [2024-11-23 23:35:15,215 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:35:15" (1/1) ... [2024-11-23 23:35:15,318 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:35:16,363 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_876a40e0-c92a-4021-91a1-66643a46dec3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i[190557,190570] [2024-11-23 23:35:16,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:35:16,984 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:35:17,199 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_876a40e0-c92a-4021-91a1-66643a46dec3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i[190557,190570] [2024-11-23 23:35:17,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:35:17,433 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:35:17,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:17 WrapperNode [2024-11-23 23:35:17,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:35:17,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:35:17,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:35:17,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:35:17,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:17" (1/1) ... [2024-11-23 23:35:17,527 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:17" (1/1) ... [2024-11-23 23:35:17,627 INFO L138 Inliner]: procedures = 175, calls = 763, calls flagged for inlining = 71, calls inlined = 62, statements flattened = 1974 [2024-11-23 23:35:17,627 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:35:17,628 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:35:17,628 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:35:17,628 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:35:17,643 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:17" (1/1) ... [2024-11-23 23:35:17,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:17" (1/1) ... [2024-11-23 23:35:17,660 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:17" (1/1) ... [2024-11-23 23:35:18,125 INFO L175 MemorySlicer]: Split 365 memory accesses to 15 slices as follows [2, 4, 20, 2, 3, 3, 3, 3, 3, 2, 3, 2, 261, 44, 10]. 72 percent of accesses are in the largest equivalence class. The 61 initializations are split as follows [2, 0, 15, 0, 3, 3, 3, 3, 3, 0, 3, 0, 26, 0, 0]. The 159 writes are split as follows [0, 1, 2, 1, 0, 0, 0, 0, 0, 1, 0, 1, 100, 44, 9]. [2024-11-23 23:35:18,125 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:17" (1/1) ... [2024-11-23 23:35:18,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:17" (1/1) ... [2024-11-23 23:35:18,249 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:17" (1/1) ... [2024-11-23 23:35:18,255 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:17" (1/1) ... [2024-11-23 23:35:18,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:17" (1/1) ... [2024-11-23 23:35:18,299 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:17" (1/1) ... [2024-11-23 23:35:18,313 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:17" (1/1) ... [2024-11-23 23:35:18,356 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:35:18,359 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:35:18,359 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:35:18,359 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:35:18,360 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:17" (1/1) ... [2024-11-23 23:35:18,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:35:18,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:18,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:35:18,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:35:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_scatter [2024-11-23 23:35:18,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_scatter [2024-11-23 23:35:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-23 23:35:18,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-23 23:35:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_out [2024-11-23 23:35:18,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_out [2024-11-23 23:35:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-23 23:35:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-23 23:35:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-23 23:35:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-23 23:35:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-23 23:35:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-23 23:35:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-23 23:35:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-23 23:35:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-23 23:35:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-23 23:35:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-23 23:35:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-23 23:35:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-23 23:35:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-23 23:35:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-23 23:35:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2024-11-23 23:35:18,465 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2024-11-23 23:35:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2024-11-23 23:35:18,465 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2024-11-23 23:35:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-23 23:35:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-23 23:35:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-23 23:35:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-23 23:35:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-23 23:35:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-23 23:35:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-23 23:35:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-23 23:35:18,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-23 23:35:18,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-11-23 23:35:18,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-11-23 23:35:18,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-11-23 23:35:18,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-11-23 23:35:18,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-11-23 23:35:18,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2024-11-23 23:35:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-23 23:35:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-23 23:35:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-23 23:35:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-23 23:35:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-23 23:35:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-23 23:35:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-23 23:35:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-23 23:35:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-23 23:35:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-23 23:35:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-23 23:35:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-23 23:35:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-23 23:35:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-23 23:35:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-23 23:35:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-23 23:35:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-23 23:35:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 23:35:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 23:35:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 23:35:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 23:35:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 23:35:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 23:35:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-23 23:35:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-23 23:35:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-23 23:35:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-23 23:35:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-23 23:35:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-23 23:35:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-23 23:35:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-23 23:35:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-23 23:35:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2024-11-23 23:35:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2024-11-23 23:35:18,477 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_diag_write32 [2024-11-23 23:35:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_diag_write32 [2024-11-23 23:35:18,477 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_destroy [2024-11-23 23:35:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_destroy [2024-11-23 23:35:18,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2024-11-23 23:35:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2024-11-23 23:35:18,478 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-23 23:35:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-23 23:35:18,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-23 23:35:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-23 23:35:18,478 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_default_pipe [2024-11-23 23:35:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_default_pipe [2024-11-23 23:35:18,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-23 23:35:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-23 23:35:18,478 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-23 23:35:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-23 23:35:18,478 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_off [2024-11-23 23:35:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_off [2024-11-23 23:35:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 23:35:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 23:35:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 23:35:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 23:35:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 23:35:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 23:35:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-23 23:35:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-23 23:35:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-23 23:35:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-23 23:35:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-23 23:35:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-23 23:35:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-23 23:35:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-23 23:35:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-23 23:35:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_bmi_read [2024-11-23 23:35:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_bmi_read [2024-11-23 23:35:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2024-11-23 23:35:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2024-11-23 23:35:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-23 23:35:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-23 23:35:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_stop [2024-11-23 23:35:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_stop [2024-11-23 23:35:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_free_queue_number [2024-11-23 23:35:18,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_free_queue_number [2024-11-23 23:35:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_free_urb_to_pipe [2024-11-23 23:35:18,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_free_urb_to_pipe [2024-11-23 23:35:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_flush_all [2024-11-23 23:35:18,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_flush_all [2024-11-23 23:35:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-23 23:35:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-23 23:35:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-23 23:35:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-23 23:35:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-23 23:35:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-23 23:35:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-23 23:35:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-23 23:35:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-23 23:35:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-23 23:35:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-11-23 23:35:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-11-23 23:35:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2024-11-23 23:35:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2024-11-23 23:35:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2024-11-23 23:35:18,487 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-23 23:35:18,487 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-23 23:35:18,487 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-23 23:35:18,487 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-23 23:35:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-23 23:35:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-23 23:35:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-23 23:35:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-23 23:35:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-23 23:35:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-23 23:35:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-11-23 23:35:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-11-23 23:35:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2024-11-23 23:35:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2024-11-23 23:35:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2024-11-23 23:35:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:35:18,489 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:35:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_warn [2024-11-23 23:35:18,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_warn [2024-11-23 23:35:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_ctrl_msg_exchange [2024-11-23 23:35:18,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_ctrl_msg_exchange [2024-11-23 23:35:18,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 23:35:18,491 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_recv_urb [2024-11-23 23:35:18,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_recv_urb [2024-11-23 23:35:18,491 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-23 23:35:18,491 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-23 23:35:18,491 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_in [2024-11-23 23:35:18,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_in [2024-11-23 23:35:18,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:35:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_on [2024-11-23 23:35:18,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_on [2024-11-23 23:35:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_priv [2024-11-23 23:35:18,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_priv [2024-11-23 23:35:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 23:35:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 23:35:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 23:35:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 23:35:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 23:35:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-23 23:35:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-23 23:35:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-23 23:35:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-23 23:35:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-23 23:35:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-23 23:35:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-23 23:35:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-23 23:35:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-23 23:35:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-23 23:35:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-23 23:35:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-23 23:35:18,494 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-23 23:35:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_err [2024-11-23 23:35:18,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_err [2024-11-23 23:35:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 23:35:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 23:35:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 23:35:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 23:35:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 23:35:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 23:35:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-23 23:35:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-23 23:35:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-23 23:35:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-23 23:35:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-23 23:35:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-23 23:35:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-23 23:35:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-23 23:35:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-23 23:35:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2024-11-23 23:35:18,498 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2024-11-23 23:35:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2024-11-23 23:35:18,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2024-11-23 23:35:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_alloc_urb_from_pipe [2024-11-23 23:35:18,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_alloc_urb_from_pipe [2024-11-23 23:35:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_remove [2024-11-23 23:35:18,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_remove [2024-11-23 23:35:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-23 23:35:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-23 23:35:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-23 23:35:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-23 23:35:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-23 23:35:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-23 23:35:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 23:35:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 23:35:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 23:35:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 23:35:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 23:35:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-23 23:35:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-23 23:35:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-23 23:35:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-23 23:35:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-23 23:35:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-23 23:35:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-23 23:35:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-23 23:35:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-23 23:35:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-23 23:35:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-23 23:35:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_post_recv_transfers [2024-11-23 23:35:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_post_recv_transfers [2024-11-23 23:35:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-23 23:35:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-23 23:35:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-23 23:35:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-23 23:35:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_map_service_pipe [2024-11-23 23:35:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_map_service_pipe [2024-11-23 23:35:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-23 23:35:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-23 23:35:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_dbg [2024-11-23 23:35:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_dbg [2024-11-23 23:35:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-23 23:35:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-23 23:35:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-11-23 23:35:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-11-23 23:35:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:35:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:35:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:35:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:35:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 23:35:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 23:35:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 23:35:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-23 23:35:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-23 23:35:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-23 23:35:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-23 23:35:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-23 23:35:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-23 23:35:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-23 23:35:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-23 23:35:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_send [2024-11-23 23:35:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_send [2024-11-23 23:35:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2024-11-23 23:35:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2024-11-23 23:35:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2024-11-23 23:35:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2024-11-23 23:35:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-23 23:35:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-23 23:35:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-23 23:35:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-23 23:35:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-23 23:35:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-23 23:35:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-23 23:35:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-23 23:35:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-23 23:35:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-11-23 23:35:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-11-23 23:35:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-11-23 23:35:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-11-23 23:35:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-11-23 23:35:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2024-11-23 23:35:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-23 23:35:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-23 23:35:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:35:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:35:19,499 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:35:19,502 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:35:19,668 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-23 23:35:26,347 INFO L? ?]: Removed 906 outVars from TransFormulas that were not future-live. [2024-11-23 23:35:26,347 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:35:26,382 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:35:26,385 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-23 23:35:26,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:35:26 BoogieIcfgContainer [2024-11-23 23:35:26,386 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:35:26,388 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:35:26,388 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:35:26,400 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:35:26,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:35:15" (1/3) ... [2024-11-23 23:35:26,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eff888b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:35:26, skipping insertion in model container [2024-11-23 23:35:26,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:17" (2/3) ... [2024-11-23 23:35:26,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eff888b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:35:26, skipping insertion in model container [2024-11-23 23:35:26,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:35:26" (3/3) ... [2024-11-23 23:35:26,403 INFO L128 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2024-11-23 23:35:26,421 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:35:26,426 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i that has 68 procedures, 873 locations, 1 initial locations, 20 loop locations, and 1 error locations. [2024-11-23 23:35:26,530 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:35:26,548 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;@2e1ddbc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:35:26,548 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:35:26,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 824 states, 583 states have (on average 1.346483704974271) internal successors, (785), 598 states have internal predecessors, (785), 185 states have call successors, (185), 55 states have call predecessors, (185), 54 states have return successors, (181), 180 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-23 23:35:26,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-23 23:35:26,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:26,581 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:26,582 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:26,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:26,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1483585426, now seen corresponding path program 1 times [2024-11-23 23:35:26,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:26,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990036846] [2024-11-23 23:35:26,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:26,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:28,406 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-23 23:35:28,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:28,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990036846] [2024-11-23 23:35:28,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990036846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:28,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:28,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:35:28,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539458710] [2024-11-23 23:35:28,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:28,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:35:28,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:28,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:35:28,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:35:28,454 INFO L87 Difference]: Start difference. First operand has 824 states, 583 states have (on average 1.346483704974271) internal successors, (785), 598 states have internal predecessors, (785), 185 states have call successors, (185), 55 states have call predecessors, (185), 54 states have return successors, (181), 180 states have call predecessors, (181), 181 states have call successors, (181) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 23:35:32,500 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 [] [2024-11-23 23:35:32,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:32,834 INFO L93 Difference]: Finished difference Result 2401 states and 3459 transitions. [2024-11-23 23:35:32,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:35:32,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 96 [2024-11-23 23:35:32,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:32,885 INFO L225 Difference]: With dead ends: 2401 [2024-11-23 23:35:32,885 INFO L226 Difference]: Without dead ends: 1566 [2024-11-23 23:35:32,901 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 [2024-11-23 23:35:32,904 INFO L435 NwaCegarLoop]: 1142 mSDtfsCounter, 1057 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 2252 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 [2024-11-23 23:35:32,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 2252 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 23:35:32,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2024-11-23 23:35:33,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1566. [2024-11-23 23:35:33,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1116 states have (on average 1.3198924731182795) internal successors, (1473), 1134 states have internal predecessors, (1473), 345 states have call successors, (345), 105 states have call predecessors, (345), 104 states have return successors, (344), 342 states have call predecessors, (344), 344 states have call successors, (344) [2024-11-23 23:35:33,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 2162 transitions. [2024-11-23 23:35:33,158 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 2162 transitions. Word has length 96 [2024-11-23 23:35:33,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:33,158 INFO L471 AbstractCegarLoop]: Abstraction has 1566 states and 2162 transitions. [2024-11-23 23:35:33,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-23 23:35:33,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 2162 transitions. [2024-11-23 23:35:33,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 23:35:33,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:33,167 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:33,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:35:33,168 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:33,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:33,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1896327014, now seen corresponding path program 1 times [2024-11-23 23:35:33,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:33,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727024779] [2024-11-23 23:35:33,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:33,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:34,374 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:35:34,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:34,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727024779] [2024-11-23 23:35:34,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727024779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:34,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:34,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:35:34,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078432283] [2024-11-23 23:35:34,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:34,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:35:34,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:34,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:35:34,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:35:34,380 INFO L87 Difference]: Start difference. First operand 1566 states and 2162 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:35:34,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:34,656 INFO L93 Difference]: Finished difference Result 3102 states and 4281 transitions. [2024-11-23 23:35:34,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:35:34,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 107 [2024-11-23 23:35:34,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:34,682 INFO L225 Difference]: With dead ends: 3102 [2024-11-23 23:35:34,682 INFO L226 Difference]: Without dead ends: 1574 [2024-11-23 23:35:34,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:35:34,695 INFO L435 NwaCegarLoop]: 1124 mSDtfsCounter, 1116 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 2250 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:34,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 2250 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:35:34,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2024-11-23 23:35:34,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1568. [2024-11-23 23:35:34,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1118 states have (on average 1.3184257602862255) internal successors, (1474), 1136 states have internal predecessors, (1474), 345 states have call successors, (345), 105 states have call predecessors, (345), 104 states have return successors, (344), 342 states have call predecessors, (344), 344 states have call successors, (344) [2024-11-23 23:35:34,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2163 transitions. [2024-11-23 23:35:34,901 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2163 transitions. Word has length 107 [2024-11-23 23:35:34,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:34,903 INFO L471 AbstractCegarLoop]: Abstraction has 1568 states and 2163 transitions. [2024-11-23 23:35:34,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:35:34,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2163 transitions. [2024-11-23 23:35:34,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 23:35:34,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:34,917 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:34,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:35:34,917 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:34,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:34,921 INFO L85 PathProgramCache]: Analyzing trace with hash 66828959, now seen corresponding path program 1 times [2024-11-23 23:35:34,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:34,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098617656] [2024-11-23 23:35:34,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:34,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:36,358 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:35:36,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:36,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098617656] [2024-11-23 23:35:36,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098617656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:36,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:36,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:35:36,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156870223] [2024-11-23 23:35:36,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:36,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:35:36,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:36,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:35:36,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:35:36,365 INFO L87 Difference]: Start difference. First operand 1568 states and 2163 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:35:36,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:36,883 INFO L93 Difference]: Finished difference Result 4625 states and 6419 transitions. [2024-11-23 23:35:36,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:35:36,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 112 [2024-11-23 23:35:36,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:36,910 INFO L225 Difference]: With dead ends: 4625 [2024-11-23 23:35:36,910 INFO L226 Difference]: Without dead ends: 3089 [2024-11-23 23:35:36,918 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 [2024-11-23 23:35:36,919 INFO L435 NwaCegarLoop]: 1165 mSDtfsCounter, 1089 mSDsluCounter, 3390 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 4555 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:36,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 4555 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:35:36,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3089 states. [2024-11-23 23:35:37,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3089 to 3083. [2024-11-23 23:35:37,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3083 states, 2200 states have (on average 1.32) internal successors, (2904), 2236 states have internal predecessors, (2904), 676 states have call successors, (676), 207 states have call predecessors, (676), 206 states have return successors, (695), 671 states have call predecessors, (695), 675 states have call successors, (695) [2024-11-23 23:35:37,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3083 states to 3083 states and 4275 transitions. [2024-11-23 23:35:37,205 INFO L78 Accepts]: Start accepts. Automaton has 3083 states and 4275 transitions. Word has length 112 [2024-11-23 23:35:37,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:37,206 INFO L471 AbstractCegarLoop]: Abstraction has 3083 states and 4275 transitions. [2024-11-23 23:35:37,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 23:35:37,207 INFO L276 IsEmpty]: Start isEmpty. Operand 3083 states and 4275 transitions. [2024-11-23 23:35:37,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-23 23:35:37,240 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:37,240 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:37,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:35:37,241 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:37,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:37,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1720150538, now seen corresponding path program 1 times [2024-11-23 23:35:37,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:37,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460234179] [2024-11-23 23:35:37,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:37,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:38,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:38,572 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-11-23 23:35:38,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:38,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460234179] [2024-11-23 23:35:38,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460234179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:38,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:38,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:35:38,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813781321] [2024-11-23 23:35:38,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:38,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:35:38,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:38,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:35:38,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:35:38,576 INFO L87 Difference]: Start difference. First operand 3083 states and 4275 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:35:39,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:39,089 INFO L93 Difference]: Finished difference Result 8067 states and 11134 transitions. [2024-11-23 23:35:39,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:35:39,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 243 [2024-11-23 23:35:39,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:39,144 INFO L225 Difference]: With dead ends: 8067 [2024-11-23 23:35:39,144 INFO L226 Difference]: Without dead ends: 5022 [2024-11-23 23:35:39,161 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 [2024-11-23 23:35:39,162 INFO L435 NwaCegarLoop]: 1137 mSDtfsCounter, 710 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:39,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 2183 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:35:39,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5022 states. [2024-11-23 23:35:39,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5022 to 5011. [2024-11-23 23:35:39,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5011 states, 3560 states have (on average 1.3227528089887641) internal successors, (4709), 3612 states have internal predecessors, (4709), 1076 states have call successors, (1076), 375 states have call predecessors, (1076), 374 states have return successors, (1111), 1071 states have call predecessors, (1111), 1075 states have call successors, (1111) [2024-11-23 23:35:39,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5011 states to 5011 states and 6896 transitions. [2024-11-23 23:35:39,614 INFO L78 Accepts]: Start accepts. Automaton has 5011 states and 6896 transitions. Word has length 243 [2024-11-23 23:35:39,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:39,615 INFO L471 AbstractCegarLoop]: Abstraction has 5011 states and 6896 transitions. [2024-11-23 23:35:39,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:35:39,616 INFO L276 IsEmpty]: Start isEmpty. Operand 5011 states and 6896 transitions. [2024-11-23 23:35:39,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-23 23:35:39,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:39,639 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:39,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:35:39,639 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:39,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:39,640 INFO L85 PathProgramCache]: Analyzing trace with hash 2084816853, now seen corresponding path program 1 times [2024-11-23 23:35:39,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:39,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819400164] [2024-11-23 23:35:39,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:39,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:40,414 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2024-11-23 23:35:40,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:40,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819400164] [2024-11-23 23:35:40,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819400164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:40,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:40,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:35:40,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292211165] [2024-11-23 23:35:40,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:40,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:35:40,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:40,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:35:40,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:35:40,417 INFO L87 Difference]: Start difference. First operand 5011 states and 6896 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:35:41,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:41,050 INFO L93 Difference]: Finished difference Result 11870 states and 16253 transitions. [2024-11-23 23:35:41,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:35:41,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 223 [2024-11-23 23:35:41,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:41,105 INFO L225 Difference]: With dead ends: 11870 [2024-11-23 23:35:41,105 INFO L226 Difference]: Without dead ends: 6897 [2024-11-23 23:35:41,127 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 [2024-11-23 23:35:41,127 INFO L435 NwaCegarLoop]: 1315 mSDtfsCounter, 661 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 2280 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:41,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 2280 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:35:41,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6897 states. [2024-11-23 23:35:41,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6897 to 6884. [2024-11-23 23:35:41,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6884 states, 4926 states have (on average 1.3112058465286236) internal successors, (6459), 5010 states have internal predecessors, (6459), 1441 states have call successors, (1441), 517 states have call predecessors, (1441), 516 states have return successors, (1488), 1432 states have call predecessors, (1488), 1440 states have call successors, (1488) [2024-11-23 23:35:41,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6884 states to 6884 states and 9388 transitions. [2024-11-23 23:35:41,662 INFO L78 Accepts]: Start accepts. Automaton has 6884 states and 9388 transitions. Word has length 223 [2024-11-23 23:35:41,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:41,663 INFO L471 AbstractCegarLoop]: Abstraction has 6884 states and 9388 transitions. [2024-11-23 23:35:41,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:35:41,663 INFO L276 IsEmpty]: Start isEmpty. Operand 6884 states and 9388 transitions. [2024-11-23 23:35:41,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-23 23:35:41,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:41,692 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:41,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:35:41,694 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:41,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:41,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1598746154, now seen corresponding path program 1 times [2024-11-23 23:35:41,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:41,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480317931] [2024-11-23 23:35:41,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:41,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:42,835 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-11-23 23:35:42,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:42,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480317931] [2024-11-23 23:35:42,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480317931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:42,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:42,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:35:42,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506083838] [2024-11-23 23:35:42,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:42,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:35:42,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:42,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:35:42,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:35:42,839 INFO L87 Difference]: Start difference. First operand 6884 states and 9388 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-23 23:35:46,866 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 [] [2024-11-23 23:35:47,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:47,514 INFO L93 Difference]: Finished difference Result 16362 states and 22248 transitions. [2024-11-23 23:35:47,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:35:47,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 254 [2024-11-23 23:35:47,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:47,593 INFO L225 Difference]: With dead ends: 16362 [2024-11-23 23:35:47,593 INFO L226 Difference]: Without dead ends: 9527 [2024-11-23 23:35:47,621 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 [2024-11-23 23:35:47,622 INFO L435 NwaCegarLoop]: 1150 mSDtfsCounter, 976 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:47,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 1976 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 23:35:47,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9527 states. [2024-11-23 23:35:48,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9527 to 9512. [2024-11-23 23:35:48,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9512 states, 6810 states have (on average 1.3073421439060207) internal successors, (8903), 6918 states have internal predecessors, (8903), 1943 states have call successors, (1943), 759 states have call predecessors, (1943), 758 states have return successors, (2006), 1934 states have call predecessors, (2006), 1942 states have call successors, (2006) [2024-11-23 23:35:48,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9512 states to 9512 states and 12852 transitions. [2024-11-23 23:35:48,251 INFO L78 Accepts]: Start accepts. Automaton has 9512 states and 12852 transitions. Word has length 254 [2024-11-23 23:35:48,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:48,251 INFO L471 AbstractCegarLoop]: Abstraction has 9512 states and 12852 transitions. [2024-11-23 23:35:48,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-23 23:35:48,252 INFO L276 IsEmpty]: Start isEmpty. Operand 9512 states and 12852 transitions. [2024-11-23 23:35:48,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-23 23:35:48,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:48,274 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:48,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:35:48,274 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:48,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:48,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1434294272, now seen corresponding path program 1 times [2024-11-23 23:35:48,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:48,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708145664] [2024-11-23 23:35:48,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:48,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:49,059 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2024-11-23 23:35:49,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:49,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708145664] [2024-11-23 23:35:49,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708145664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:49,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:49,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:35:49,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229490027] [2024-11-23 23:35:49,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:49,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:35:49,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:49,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:35:49,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:35:49,064 INFO L87 Difference]: Start difference. First operand 9512 states and 12852 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-23 23:35:53,091 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 [] [2024-11-23 23:35:54,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:54,337 INFO L93 Difference]: Finished difference Result 25056 states and 33856 transitions. [2024-11-23 23:35:54,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:35:54,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 235 [2024-11-23 23:35:54,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:54,485 INFO L225 Difference]: With dead ends: 25056 [2024-11-23 23:35:54,485 INFO L226 Difference]: Without dead ends: 15593 [2024-11-23 23:35:54,535 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 [2024-11-23 23:35:54,536 INFO L435 NwaCegarLoop]: 1653 mSDtfsCounter, 913 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 2645 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:54,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 2645 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 119 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-11-23 23:35:54,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15593 states. [2024-11-23 23:35:55,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15593 to 15580. [2024-11-23 23:35:55,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15580 states, 11270 states have (on average 1.288642413487134) internal successors, (14523), 11450 states have internal predecessors, (14523), 3007 states have call successors, (3007), 1303 states have call predecessors, (3007), 1302 states have return successors, (3104), 2994 states have call predecessors, (3104), 3006 states have call successors, (3104) [2024-11-23 23:35:55,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15580 states to 15580 states and 20634 transitions. [2024-11-23 23:35:55,667 INFO L78 Accepts]: Start accepts. Automaton has 15580 states and 20634 transitions. Word has length 235 [2024-11-23 23:35:55,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:55,668 INFO L471 AbstractCegarLoop]: Abstraction has 15580 states and 20634 transitions. [2024-11-23 23:35:55,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-23 23:35:55,669 INFO L276 IsEmpty]: Start isEmpty. Operand 15580 states and 20634 transitions. [2024-11-23 23:35:55,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-23 23:35:55,699 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:55,699 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:55,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:35:55,700 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:55,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:55,702 INFO L85 PathProgramCache]: Analyzing trace with hash 977951021, now seen corresponding path program 1 times [2024-11-23 23:35:55,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:55,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251084522] [2024-11-23 23:35:55,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:55,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:56,762 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-11-23 23:35:56,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:56,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251084522] [2024-11-23 23:35:56,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251084522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:56,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:56,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:35:56,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731955232] [2024-11-23 23:35:56,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:56,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:35:56,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:56,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:35:56,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:35:56,766 INFO L87 Difference]: Start difference. First operand 15580 states and 20634 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:35:57,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:57,602 INFO L93 Difference]: Finished difference Result 23399 states and 31140 transitions. [2024-11-23 23:35:57,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:35:57,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 234 [2024-11-23 23:35:57,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:57,720 INFO L225 Difference]: With dead ends: 23399 [2024-11-23 23:35:57,720 INFO L226 Difference]: Without dead ends: 15608 [2024-11-23 23:35:57,759 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 [2024-11-23 23:35:57,760 INFO L435 NwaCegarLoop]: 1120 mSDtfsCounter, 3 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:57,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2233 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:35:57,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15608 states. [2024-11-23 23:35:58,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15608 to 15608. [2024-11-23 23:35:58,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15608 states, 11298 states have (on average 1.2879270667374756) internal successors, (14551), 11478 states have internal predecessors, (14551), 3007 states have call successors, (3007), 1303 states have call predecessors, (3007), 1302 states have return successors, (3104), 2994 states have call predecessors, (3104), 3006 states have call successors, (3104) [2024-11-23 23:35:58,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15608 states to 15608 states and 20662 transitions. [2024-11-23 23:35:58,694 INFO L78 Accepts]: Start accepts. Automaton has 15608 states and 20662 transitions. Word has length 234 [2024-11-23 23:35:58,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:58,694 INFO L471 AbstractCegarLoop]: Abstraction has 15608 states and 20662 transitions. [2024-11-23 23:35:58,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:35:58,695 INFO L276 IsEmpty]: Start isEmpty. Operand 15608 states and 20662 transitions. [2024-11-23 23:35:58,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-23 23:35:58,717 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:58,718 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:58,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:35:58,719 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:58,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:58,719 INFO L85 PathProgramCache]: Analyzing trace with hash -647140948, now seen corresponding path program 1 times [2024-11-23 23:35:58,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:58,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246991787] [2024-11-23 23:35:58,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:58,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:00,457 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-11-23 23:36:00,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:36:00,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246991787] [2024-11-23 23:36:00,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246991787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:36:00,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:36:00,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:36:00,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840631358] [2024-11-23 23:36:00,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:36:00,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:36:00,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:36:00,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:36:00,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:36:00,461 INFO L87 Difference]: Start difference. First operand 15608 states and 20662 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 5 states have call successors, (32), 4 states have call predecessors, (32), 3 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2024-11-23 23:36:04,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:36:08,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:36:12,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:36:16,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:36:29,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:36:29,701 INFO L93 Difference]: Finished difference Result 34057 states and 45286 transitions. [2024-11-23 23:36:29,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:36:29,701 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 5 states have call successors, (32), 4 states have call predecessors, (32), 3 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) Word has length 236 [2024-11-23 23:36:29,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:36:29,819 INFO L225 Difference]: With dead ends: 34057 [2024-11-23 23:36:29,820 INFO L226 Difference]: Without dead ends: 18498 [2024-11-23 23:36:29,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:36:29,863 INFO L435 NwaCegarLoop]: 681 mSDtfsCounter, 1946 mSDsluCounter, 3376 mSDsCounter, 0 mSdLazyCounter, 4701 mSolverCounterSat, 784 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2145 SdHoareTripleChecker+Valid, 4057 SdHoareTripleChecker+Invalid, 5489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 784 IncrementalHoareTripleChecker+Valid, 4701 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:36:29,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2145 Valid, 4057 Invalid, 5489 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [784 Valid, 4701 Invalid, 4 Unknown, 0 Unchecked, 28.0s Time] [2024-11-23 23:36:29,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18498 states. [2024-11-23 23:36:31,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18498 to 18158. [2024-11-23 23:36:31,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18158 states, 12856 states have (on average 1.2724797759800872) internal successors, (16359), 13148 states have internal predecessors, (16359), 3651 states have call successors, (3651), 1569 states have call predecessors, (3651), 1650 states have return successors, (3958), 3650 states have call predecessors, (3958), 3650 states have call successors, (3958) [2024-11-23 23:36:31,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18158 states to 18158 states and 23968 transitions. [2024-11-23 23:36:31,392 INFO L78 Accepts]: Start accepts. Automaton has 18158 states and 23968 transitions. Word has length 236 [2024-11-23 23:36:31,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:36:31,394 INFO L471 AbstractCegarLoop]: Abstraction has 18158 states and 23968 transitions. [2024-11-23 23:36:31,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 5 states have call successors, (32), 4 states have call predecessors, (32), 3 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2024-11-23 23:36:31,395 INFO L276 IsEmpty]: Start isEmpty. Operand 18158 states and 23968 transitions. [2024-11-23 23:36:31,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-23 23:36:31,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:36:31,425 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:36:31,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:36:31,425 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:36:31,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:31,431 INFO L85 PathProgramCache]: Analyzing trace with hash -774395440, now seen corresponding path program 1 times [2024-11-23 23:36:31,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:36:31,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131391582] [2024-11-23 23:36:31,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:31,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:36:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-11-23 23:36:32,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:36:32,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131391582] [2024-11-23 23:36:32,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131391582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:36:32,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:36:32,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:36:32,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732936463] [2024-11-23 23:36:32,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:36:32,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:36:32,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:36:32,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:36:32,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:36:32,597 INFO L87 Difference]: Start difference. First operand 18158 states and 23968 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:36:33,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:36:33,441 INFO L93 Difference]: Finished difference Result 36441 states and 48456 transitions. [2024-11-23 23:36:33,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:36:33,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 239 [2024-11-23 23:36:33,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:36:33,585 INFO L225 Difference]: With dead ends: 36441 [2024-11-23 23:36:33,585 INFO L226 Difference]: Without dead ends: 18332 [2024-11-23 23:36:33,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:36:33,658 INFO L435 NwaCegarLoop]: 1119 mSDtfsCounter, 0 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4471 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 [2024-11-23 23:36:33,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4471 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:36:33,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18332 states. [2024-11-23 23:36:35,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18332 to 18326. [2024-11-23 23:36:35,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18326 states, 12982 states have (on average 1.269835156370359) internal successors, (16485), 13274 states have internal predecessors, (16485), 3651 states have call successors, (3651), 1569 states have call predecessors, (3651), 1692 states have return successors, (4006), 3692 states have call predecessors, (4006), 3650 states have call successors, (4006) [2024-11-23 23:36:35,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18326 states to 18326 states and 24142 transitions. [2024-11-23 23:36:35,320 INFO L78 Accepts]: Start accepts. Automaton has 18326 states and 24142 transitions. Word has length 239 [2024-11-23 23:36:35,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:36:35,322 INFO L471 AbstractCegarLoop]: Abstraction has 18326 states and 24142 transitions. [2024-11-23 23:36:35,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-23 23:36:35,322 INFO L276 IsEmpty]: Start isEmpty. Operand 18326 states and 24142 transitions. [2024-11-23 23:36:35,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-23 23:36:35,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:36:35,365 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:36:35,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:36:35,367 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:36:35,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:35,368 INFO L85 PathProgramCache]: Analyzing trace with hash -455287906, now seen corresponding path program 1 times [2024-11-23 23:36:35,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:36:35,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583498004] [2024-11-23 23:36:35,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:35,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:36:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:36,646 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-11-23 23:36:36,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:36:36,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583498004] [2024-11-23 23:36:36,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583498004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:36:36,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:36:36,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:36:36,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381221402] [2024-11-23 23:36:36,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:36:36,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:36:36,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:36:36,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:36:36,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:36:36,654 INFO L87 Difference]: Start difference. First operand 18326 states and 24142 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-23 23:36:38,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:36:38,013 INFO L93 Difference]: Finished difference Result 36675 states and 48402 transitions. [2024-11-23 23:36:38,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:36:38,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) Word has length 242 [2024-11-23 23:36:38,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:36:38,286 INFO L225 Difference]: With dead ends: 36675 [2024-11-23 23:36:38,287 INFO L226 Difference]: Without dead ends: 18398 [2024-11-23 23:36:38,337 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 [2024-11-23 23:36:38,338 INFO L435 NwaCegarLoop]: 1119 mSDtfsCounter, 1 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2234 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 [2024-11-23 23:36:38,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2234 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:36:38,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18398 states. [2024-11-23 23:36:39,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18398 to 18362. [2024-11-23 23:36:39,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18362 states, 13018 states have (on average 1.2690889537563375) internal successors, (16521), 13310 states have internal predecessors, (16521), 3651 states have call successors, (3651), 1569 states have call predecessors, (3651), 1692 states have return successors, (4006), 3692 states have call predecessors, (4006), 3650 states have call successors, (4006) [2024-11-23 23:36:39,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18362 states to 18362 states and 24178 transitions. [2024-11-23 23:36:39,388 INFO L78 Accepts]: Start accepts. Automaton has 18362 states and 24178 transitions. Word has length 242 [2024-11-23 23:36:39,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:36:39,389 INFO L471 AbstractCegarLoop]: Abstraction has 18362 states and 24178 transitions. [2024-11-23 23:36:39,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-23 23:36:39,389 INFO L276 IsEmpty]: Start isEmpty. Operand 18362 states and 24178 transitions. [2024-11-23 23:36:39,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-23 23:36:39,416 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:36:39,416 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:36:39,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:36:39,416 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:36:39,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:39,417 INFO L85 PathProgramCache]: Analyzing trace with hash -172573662, now seen corresponding path program 1 times [2024-11-23 23:36:39,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:36:39,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432392597] [2024-11-23 23:36:39,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:39,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:36:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:40,412 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-11-23 23:36:40,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:36:40,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432392597] [2024-11-23 23:36:40,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432392597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:36:40,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233916705] [2024-11-23 23:36:40,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:40,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:36:40,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:40,417 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:36:40,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:36:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:42,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 2370 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 23:36:42,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:36:43,153 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 106 proven. 8 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-23 23:36:43,154 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:36:46,093 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-23 23:36:46,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233916705] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:36:46,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:36:46,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 9] total 17 [2024-11-23 23:36:46,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638100200] [2024-11-23 23:36:46,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:36:46,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:36:46,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:36:46,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:36:46,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:36:46,097 INFO L87 Difference]: Start difference. First operand 18362 states and 24178 transitions. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 7 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (32), 7 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-23 23:36:50,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:36:54,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:36:58,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:37:09,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:37:09,432 INFO L93 Difference]: Finished difference Result 46908 states and 64608 transitions. [2024-11-23 23:37:09,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 23:37:09,433 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 7 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (32), 7 states have call predecessors, (32), 6 states have call successors, (32) Word has length 244 [2024-11-23 23:37:09,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:37:09,637 INFO L225 Difference]: With dead ends: 46908 [2024-11-23 23:37:09,637 INFO L226 Difference]: Without dead ends: 36375 [2024-11-23 23:37:09,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 476 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2024-11-23 23:37:09,689 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 3497 mSDsluCounter, 3673 mSDsCounter, 0 mSdLazyCounter, 3716 mSolverCounterSat, 1275 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3696 SdHoareTripleChecker+Valid, 5252 SdHoareTripleChecker+Invalid, 4994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1275 IncrementalHoareTripleChecker+Valid, 3716 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:37:09,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3696 Valid, 5252 Invalid, 4994 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1275 Valid, 3716 Invalid, 3 Unknown, 0 Unchecked, 21.1s Time] [2024-11-23 23:37:09,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36375 states. [2024-11-23 23:37:11,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36375 to 27696. [2024-11-23 23:37:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27696 states, 19627 states have (on average 1.268303867121822) internal successors, (24893), 20135 states have internal predecessors, (24893), 5441 states have call successors, (5441), 2274 states have call predecessors, (5441), 2627 states have return successors, (6457), 5622 states have call predecessors, (6457), 5440 states have call successors, (6457) [2024-11-23 23:37:11,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27696 states to 27696 states and 36791 transitions. [2024-11-23 23:37:11,771 INFO L78 Accepts]: Start accepts. Automaton has 27696 states and 36791 transitions. Word has length 244 [2024-11-23 23:37:11,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:37:11,772 INFO L471 AbstractCegarLoop]: Abstraction has 27696 states and 36791 transitions. [2024-11-23 23:37:11,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 7 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (32), 7 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-23 23:37:11,772 INFO L276 IsEmpty]: Start isEmpty. Operand 27696 states and 36791 transitions. [2024-11-23 23:37:11,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-23 23:37:11,793 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:37:11,794 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:37:11,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:37:11,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:37:11,994 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:37:11,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:11,995 INFO L85 PathProgramCache]: Analyzing trace with hash -933067743, now seen corresponding path program 1 times [2024-11-23 23:37:11,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:11,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001892036] [2024-11-23 23:37:11,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:11,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:12,904 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-23 23:37:12,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:12,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001892036] [2024-11-23 23:37:12,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001892036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:37:12,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:37:12,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:37:12,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91761150] [2024-11-23 23:37:12,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:37:12,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:37:12,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:12,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:37:12,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:37:12,908 INFO L87 Difference]: Start difference. First operand 27696 states and 36791 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-23 23:37:15,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:37:15,527 INFO L93 Difference]: Finished difference Result 47647 states and 63831 transitions. [2024-11-23 23:37:15,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:37:15,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 246 [2024-11-23 23:37:15,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:37:15,730 INFO L225 Difference]: With dead ends: 47647 [2024-11-23 23:37:15,730 INFO L226 Difference]: Without dead ends: 27780 [2024-11-23 23:37:15,797 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 [2024-11-23 23:37:15,798 INFO L435 NwaCegarLoop]: 1115 mSDtfsCounter, 0 mSDsluCounter, 2224 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:37:15,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3339 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:37:15,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27780 states. [2024-11-23 23:37:17,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27780 to 27766. [2024-11-23 23:37:17,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27766 states, 19697 states have (on average 1.2687718941970858) internal successors, (24991), 20205 states have internal predecessors, (24991), 5441 states have call successors, (5441), 2274 states have call predecessors, (5441), 2627 states have return successors, (6457), 5622 states have call predecessors, (6457), 5440 states have call successors, (6457) [2024-11-23 23:37:17,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27766 states to 27766 states and 36889 transitions. [2024-11-23 23:37:17,915 INFO L78 Accepts]: Start accepts. Automaton has 27766 states and 36889 transitions. Word has length 246 [2024-11-23 23:37:17,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:37:17,916 INFO L471 AbstractCegarLoop]: Abstraction has 27766 states and 36889 transitions. [2024-11-23 23:37:17,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-23 23:37:17,916 INFO L276 IsEmpty]: Start isEmpty. Operand 27766 states and 36889 transitions. [2024-11-23 23:37:17,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-23 23:37:17,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:37:17,941 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:37:17,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:37:17,942 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:37:17,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:17,942 INFO L85 PathProgramCache]: Analyzing trace with hash -774586350, now seen corresponding path program 1 times [2024-11-23 23:37:17,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:17,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215618874] [2024-11-23 23:37:17,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:17,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:19,125 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-23 23:37:19,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:19,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215618874] [2024-11-23 23:37:19,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215618874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:37:19,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392812362] [2024-11-23 23:37:19,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:19,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:37:19,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:37:19,129 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:37:19,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:37:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:20,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 2378 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:37:20,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:37:20,778 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-23 23:37:20,779 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:37:21,531 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-23 23:37:21,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392812362] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:37:21,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:37:21,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-23 23:37:21,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871921882] [2024-11-23 23:37:21,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:37:21,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:37:21,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:21,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:37:21,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:37:21,534 INFO L87 Difference]: Start difference. First operand 27766 states and 36889 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-23 23:37:22,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:37:22,988 INFO L93 Difference]: Finished difference Result 56059 states and 74832 transitions. [2024-11-23 23:37:22,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:37:22,989 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) Word has length 247 [2024-11-23 23:37:22,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:37:23,152 INFO L225 Difference]: With dead ends: 56059 [2024-11-23 23:37:23,153 INFO L226 Difference]: Without dead ends: 28342 [2024-11-23 23:37:23,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:37:23,226 INFO L435 NwaCegarLoop]: 1119 mSDtfsCounter, 2 mSDsluCounter, 3345 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4464 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:37:23,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4464 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:37:23,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28342 states. [2024-11-23 23:37:25,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28342 to 28342. [2024-11-23 23:37:25,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28342 states, 20273 states have (on average 1.2611355004192768) internal successors, (25567), 20781 states have internal predecessors, (25567), 5441 states have call successors, (5441), 2274 states have call predecessors, (5441), 2627 states have return successors, (6457), 5622 states have call predecessors, (6457), 5440 states have call successors, (6457) [2024-11-23 23:37:25,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28342 states to 28342 states and 37465 transitions. [2024-11-23 23:37:25,362 INFO L78 Accepts]: Start accepts. Automaton has 28342 states and 37465 transitions. Word has length 247 [2024-11-23 23:37:25,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:37:25,363 INFO L471 AbstractCegarLoop]: Abstraction has 28342 states and 37465 transitions. [2024-11-23 23:37:25,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-23 23:37:25,363 INFO L276 IsEmpty]: Start isEmpty. Operand 28342 states and 37465 transitions. [2024-11-23 23:37:25,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-23 23:37:25,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:37:25,565 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:37:25,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 23:37:25,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_876a40e0-c92a-4021-91a1-66643a46dec3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:37:25,766 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:37:25,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:25,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1399306338, now seen corresponding path program 2 times [2024-11-23 23:37:25,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:25,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829884344] [2024-11-23 23:37:25,766 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:37:25,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:26,634 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:37:26,635 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:37:28,934 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-23 23:37:28,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:28,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829884344] [2024-11-23 23:37:28,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829884344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:37:28,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:37:28,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 23:37:28,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152781242] [2024-11-23 23:37:28,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:37:28,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:37:28,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:28,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:37:28,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:37:28,937 INFO L87 Difference]: Start difference. First operand 28342 states and 37465 transitions. Second operand has 14 states, 13 states have (on average 10.461538461538462) internal successors, (136), 11 states have internal predecessors, (136), 3 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (32), 5 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-23 23:37:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:37:31,729 INFO L93 Difference]: Finished difference Result 57049 states and 76118 transitions. [2024-11-23 23:37:31,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:37:31,730 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.461538461538462) internal successors, (136), 11 states have internal predecessors, (136), 3 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (32), 5 states have call predecessors, (32), 3 states have call successors, (32) Word has length 253 [2024-11-23 23:37:31,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:37:31,917 INFO L225 Difference]: With dead ends: 57049 [2024-11-23 23:37:31,917 INFO L226 Difference]: Without dead ends: 28756 [2024-11-23 23:37:32,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:37:32,009 INFO L435 NwaCegarLoop]: 1131 mSDtfsCounter, 5 mSDsluCounter, 13536 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 14667 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:37:32,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 14667 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:37:32,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28756 states. [2024-11-23 23:37:33,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28756 to 28748. [2024-11-23 23:37:34,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28748 states, 20623 states have (on average 1.2539882655287786) internal successors, (25861), 21089 states have internal predecessors, (25861), 5441 states have call successors, (5441), 2274 states have call predecessors, (5441), 2683 states have return successors, (6555), 5720 states have call predecessors, (6555), 5440 states have call successors, (6555) [2024-11-23 23:37:34,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28748 states to 28748 states and 37857 transitions. [2024-11-23 23:37:34,136 INFO L78 Accepts]: Start accepts. Automaton has 28748 states and 37857 transitions. Word has length 253 [2024-11-23 23:37:34,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:37:34,137 INFO L471 AbstractCegarLoop]: Abstraction has 28748 states and 37857 transitions. [2024-11-23 23:37:34,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.461538461538462) internal successors, (136), 11 states have internal predecessors, (136), 3 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (32), 5 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-23 23:37:34,137 INFO L276 IsEmpty]: Start isEmpty. Operand 28748 states and 37857 transitions. [2024-11-23 23:37:34,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-23 23:37:34,160 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:37:34,161 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:37:34,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:37:34,161 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:37:34,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:34,162 INFO L85 PathProgramCache]: Analyzing trace with hash -937973714, now seen corresponding path program 1 times [2024-11-23 23:37:34,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:34,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982774964] [2024-11-23 23:37:34,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:34,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:35,614 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2024-11-23 23:37:35,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:35,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982774964] [2024-11-23 23:37:35,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982774964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:37:35,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:37:35,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:37:35,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461997016] [2024-11-23 23:37:35,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:37:35,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:37:35,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:35,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:37:35,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:37:35,617 INFO L87 Difference]: Start difference. First operand 28748 states and 37857 transitions. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-23 23:37:37,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:37:37,881 INFO L93 Difference]: Finished difference Result 57953 states and 77014 transitions. [2024-11-23 23:37:37,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:37:37,881 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 265 [2024-11-23 23:37:37,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:37:38,083 INFO L225 Difference]: With dead ends: 57953 [2024-11-23 23:37:38,084 INFO L226 Difference]: Without dead ends: 29254 [2024-11-23 23:37:38,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:37:38,168 INFO L435 NwaCegarLoop]: 1118 mSDtfsCounter, 0 mSDsluCounter, 4459 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5577 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:37:38,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5577 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:37:38,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29254 states.