./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8954b1975c9ef274050a4ed05b880cddaf4747278343623028f38a4ef8e6ca73 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 03:38:04,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 03:38:04,269 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 03:38:04,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 03:38:04,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 03:38:04,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 03:38:04,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 03:38:04,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 03:38:04,301 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 03:38:04,302 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 03:38:04,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 03:38:04,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 03:38:04,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 03:38:04,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 03:38:04,305 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 03:38:04,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 03:38:04,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 03:38:04,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 03:38:04,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 03:38:04,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 03:38:04,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 03:38:04,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 03:38:04,310 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 03:38:04,311 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 03:38:04,311 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 03:38:04,311 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 03:38:04,311 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 03:38:04,311 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 03:38:04,312 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 03:38:04,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:38:04,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 03:38:04,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 03:38:04,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 03:38:04,312 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 03:38:04,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 03:38:04,313 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 03:38:04,313 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 03:38:04,313 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 03:38:04,314 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 03:38:04,314 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8954b1975c9ef274050a4ed05b880cddaf4747278343623028f38a4ef8e6ca73 [2024-11-19 03:38:04,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 03:38:04,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 03:38:04,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 03:38:04,573 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 03:38:04,574 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 03:38:04,575 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i [2024-11-19 03:38:05,929 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 03:38:06,248 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 03:38:06,248 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i [2024-11-19 03:38:06,280 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46ef80fdd/20b6744bf6bd4f86a35ea55916a0183f/FLAGca2e34974 [2024-11-19 03:38:06,296 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46ef80fdd/20b6744bf6bd4f86a35ea55916a0183f [2024-11-19 03:38:06,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 03:38:06,300 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 03:38:06,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 03:38:06,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 03:38:06,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 03:38:06,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:38:06" (1/1) ... [2024-11-19 03:38:06,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c9042a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:06, skipping insertion in model container [2024-11-19 03:38:06,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:38:06" (1/1) ... [2024-11-19 03:38:06,375 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 03:38:07,085 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i[115866,115879] [2024-11-19 03:38:07,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:38:07,155 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 03:38:07,223 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [3196] [2024-11-19 03:38:07,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3204-3205] [2024-11-19 03:38:07,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [3242] [2024-11-19 03:38:07,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [3250] [2024-11-19 03:38:07,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (data + i), "i" (1UL)); [3602-3603] [2024-11-19 03:38:07,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (uarg.i): "ebx"); [3692] [2024-11-19 03:38:07,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (uarg.i): "ebx"); [3695] [2024-11-19 03:38:07,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (uarg.i): "ebx"); [3698] [2024-11-19 03:38:07,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (uarg.i): "ebx"); [3701] [2024-11-19 03:38:07,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (uarg.i): "ebx"); [3704] [2024-11-19 03:38:07,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (uarg.i): "ebx"); [3715-3716] [2024-11-19 03:38:07,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (uarg.i): "ebx"); [3719-3720] [2024-11-19 03:38:07,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (uarg.i): "ebx"); [3723-3724] [2024-11-19 03:38:07,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (uarg.i): "ebx"); [3727-3728] [2024-11-19 03:38:07,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (uarg.i): "ebx"); [3731-3732] [2024-11-19 03:38:07,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (uarg.i), "i" (4UL)); [3741-3742] [2024-11-19 03:38:07,270 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___0), "=r" (__val_gu___0): "0" (uarg.i), "i" (4UL)); [3765-3766] [2024-11-19 03:38:07,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (uarg.i): "ebx"); [3786-3787] [2024-11-19 03:38:07,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (uarg.i): "ebx"); [3790-3791] [2024-11-19 03:38:07,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (uarg.i): "ebx"); [3794-3795] [2024-11-19 03:38:07,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (uarg.i): "ebx"); [3798-3799] [2024-11-19 03:38:07,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (uarg.i): "ebx"); [3802-3803] [2024-11-19 03:38:07,286 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i[115866,115879] [2024-11-19 03:38:07,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:38:07,329 INFO L204 MainTranslator]: Completed translation [2024-11-19 03:38:07,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:07 WrapperNode [2024-11-19 03:38:07,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 03:38:07,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 03:38:07,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 03:38:07,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 03:38:07,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:07" (1/1) ... [2024-11-19 03:38:07,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:07" (1/1) ... [2024-11-19 03:38:07,416 INFO L138 Inliner]: procedures = 101, calls = 323, calls flagged for inlining = 40, calls inlined = 37, statements flattened = 985 [2024-11-19 03:38:07,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 03:38:07,418 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 03:38:07,418 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 03:38:07,418 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 03:38:07,429 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:07" (1/1) ... [2024-11-19 03:38:07,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:07" (1/1) ... [2024-11-19 03:38:07,444 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:07" (1/1) ... [2024-11-19 03:38:07,492 INFO L175 MemorySlicer]: Split 104 memory accesses to 13 slices as follows [1, 2, 10, 3, 2, 1, 26, 8, 1, 0, 29, 12, 9]. 28 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [0, 2, 10, 3, 0, 0, 0, 8, 1, 0, 0, 0, 0]. The 71 writes are split as follows [1, 0, 0, 0, 1, 0, 26, 0, 0, 0, 29, 12, 2]. [2024-11-19 03:38:07,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:07" (1/1) ... [2024-11-19 03:38:07,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:07" (1/1) ... [2024-11-19 03:38:07,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:07" (1/1) ... [2024-11-19 03:38:07,525 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:07" (1/1) ... [2024-11-19 03:38:07,531 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:07" (1/1) ... [2024-11-19 03:38:07,540 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:07" (1/1) ... [2024-11-19 03:38:07,556 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 03:38:07,557 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 03:38:07,558 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 03:38:07,558 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 03:38:07,558 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:07" (1/1) ... [2024-11-19 03:38:07,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:38:07,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:38:07,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 03:38:07,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 03:38:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2024-11-19 03:38:07,635 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2024-11-19 03:38:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 03:38:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 03:38:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 03:38:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 03:38:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 03:38:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 03:38:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-19 03:38:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-19 03:38:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-19 03:38:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-19 03:38:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-19 03:38:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-19 03:38:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-19 03:38:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 03:38:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 03:38:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-19 03:38:07,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 03:38:07,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-19 03:38:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-19 03:38:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-19 03:38:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-19 03:38:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-19 03:38:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-19 03:38:07,639 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-19 03:38:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_disable_sw_wd_trg [2024-11-19 03:38:07,639 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_disable_sw_wd_trg [2024-11-19 03:38:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2024-11-19 03:38:07,639 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2024-11-19 03:38:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable_sw_wd_trg [2024-11-19 03:38:07,639 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable_sw_wd_trg [2024-11-19 03:38:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-19 03:38:07,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-19 03:38:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 03:38:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 03:38:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 03:38:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 03:38:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 03:38:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 03:38:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 03:38:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 03:38:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-19 03:38:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-19 03:38:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-19 03:38:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-19 03:38:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-19 03:38:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-19 03:38:07,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-19 03:38:07,642 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_write [2024-11-19 03:38:07,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_write [2024-11-19 03:38:07,642 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_disable [2024-11-19 03:38:07,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_disable [2024-11-19 03:38:07,642 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_disable_sw_wd_tren [2024-11-19 03:38:07,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_disable_sw_wd_tren [2024-11-19 03:38:07,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-19 03:38:07,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-19 03:38:07,643 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 03:38:07,643 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 03:38:07,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 03:38:07,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-19 03:38:07,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-19 03:38:07,643 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_refresh [2024-11-19 03:38:07,644 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_refresh [2024-11-19 03:38:07,644 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable_sw_wd_tren [2024-11-19 03:38:07,644 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable_sw_wd_tren [2024-11-19 03:38:07,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 03:38:07,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 03:38:07,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 03:38:07,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 03:38:07,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 03:38:07,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 03:38:07,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 03:38:07,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 03:38:07,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-19 03:38:07,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-19 03:38:07,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-19 03:38:07,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-19 03:38:07,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-19 03:38:07,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-19 03:38:07,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 03:38:07,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 03:38:07,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 03:38:07,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 03:38:07,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 03:38:07,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 03:38:07,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 03:38:07,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 03:38:07,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-19 03:38:07,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-19 03:38:07,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-19 03:38:07,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-19 03:38:07,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-19 03:38:07,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-19 03:38:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable [2024-11-19 03:38:07,648 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable [2024-11-19 03:38:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 03:38:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable_wden [2024-11-19 03:38:07,648 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable_wden [2024-11-19 03:38:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 03:38:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 03:38:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 03:38:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 03:38:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 03:38:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-19 03:38:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-19 03:38:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-19 03:38:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-19 03:38:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-19 03:38:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-19 03:38:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-19 03:38:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-19 03:38:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-19 03:38:07,649 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-19 03:38:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-19 03:38:07,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-19 03:38:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2024-11-19 03:38:07,649 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2024-11-19 03:38:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-19 03:38:07,649 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-19 03:38:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-19 03:38:07,649 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-19 03:38:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-19 03:38:07,649 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-19 03:38:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 03:38:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 03:38:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 03:38:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 03:38:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 03:38:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 03:38:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 03:38:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 03:38:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 03:38:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 03:38:07,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-19 03:38:07,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-19 03:38:07,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-19 03:38:07,651 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2024-11-19 03:38:07,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2024-11-19 03:38:07,651 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_swc_bank3 [2024-11-19 03:38:07,651 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_swc_bank3 [2024-11-19 03:38:07,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 03:38:07,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 03:38:07,651 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_programm_wdto [2024-11-19 03:38:07,651 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_programm_wdto [2024-11-19 03:38:07,968 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 03:38:07,972 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 03:38:08,003 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-19 03:38:16,883 INFO L? ?]: Removed 364 outVars from TransFormulas that were not future-live. [2024-11-19 03:38:16,883 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 03:38:16,910 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 03:38:16,910 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 03:38:16,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:38:16 BoogieIcfgContainer [2024-11-19 03:38:16,910 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 03:38:16,915 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 03:38:16,915 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 03:38:16,918 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 03:38:16,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:38:06" (1/3) ... [2024-11-19 03:38:16,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589c1683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:38:16, skipping insertion in model container [2024-11-19 03:38:16,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:07" (2/3) ... [2024-11-19 03:38:16,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589c1683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:38:16, skipping insertion in model container [2024-11-19 03:38:16,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:38:16" (3/3) ... [2024-11-19 03:38:16,922 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i [2024-11-19 03:38:16,936 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 03:38:16,937 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 03:38:17,007 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 03:38:17,014 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;@1cf66d2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 03:38:17,015 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 03:38:17,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 404 states, 268 states have (on average 1.335820895522388) internal successors, (358), 278 states have internal predecessors, (358), 108 states have call successors, (108), 27 states have call predecessors, (108), 26 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-19 03:38:17,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-19 03:38:17,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:38:17,040 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:38:17,040 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:38:17,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:38:17,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1807320948, now seen corresponding path program 1 times [2024-11-19 03:38:17,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:38:17,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483224955] [2024-11-19 03:38:17,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:38:17,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:38:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:38:17,817 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-19 03:38:17,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:38:17,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483224955] [2024-11-19 03:38:17,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483224955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:38:17,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:38:17,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 03:38:17,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867180453] [2024-11-19 03:38:17,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:38:17,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 03:38:17,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:38:17,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 03:38:17,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 03:38:17,857 INFO L87 Difference]: Start difference. First operand has 404 states, 268 states have (on average 1.335820895522388) internal successors, (358), 278 states have internal predecessors, (358), 108 states have call successors, (108), 27 states have call predecessors, (108), 26 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-11-19 03:38:21,880 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 [] [2024-11-19 03:38:22,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:38:22,015 INFO L93 Difference]: Finished difference Result 815 states and 1173 transitions. [2024-11-19 03:38:22,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 03:38:22,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 136 [2024-11-19 03:38:22,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:38:22,031 INFO L225 Difference]: With dead ends: 815 [2024-11-19 03:38:22,032 INFO L226 Difference]: Without dead ends: 401 [2024-11-19 03:38:22,041 INFO L431 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 [2024-11-19 03:38:22,044 INFO L432 NwaCegarLoop]: 558 mSDtfsCounter, 10 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:38:22,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1667 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-19 03:38:22,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-19 03:38:22,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 396. [2024-11-19 03:38:22,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 266 states have (on average 1.2932330827067668) internal successors, (344), 270 states have internal predecessors, (344), 104 states have call successors, (104), 26 states have call predecessors, (104), 25 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-19 03:38:22,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 551 transitions. [2024-11-19 03:38:22,131 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 551 transitions. Word has length 136 [2024-11-19 03:38:22,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:38:22,133 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 551 transitions. [2024-11-19 03:38:22,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-11-19 03:38:22,134 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 551 transitions. [2024-11-19 03:38:22,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-19 03:38:22,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:38:22,137 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:38:22,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 03:38:22,138 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:38:22,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:38:22,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1750062646, now seen corresponding path program 1 times [2024-11-19 03:38:22,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:38:22,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797757269] [2024-11-19 03:38:22,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:38:22,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:38:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:38:22,584 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-19 03:38:22,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:38:22,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797757269] [2024-11-19 03:38:22,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797757269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:38:22,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:38:22,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:38:22,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598606680] [2024-11-19 03:38:22,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:38:22,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:38:22,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:38:22,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:38:22,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:38:22,592 INFO L87 Difference]: Start difference. First operand 396 states and 551 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 03:38:22,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:38:22,663 INFO L93 Difference]: Finished difference Result 764 states and 1064 transitions. [2024-11-19 03:38:22,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:38:22,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2024-11-19 03:38:22,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:38:22,674 INFO L225 Difference]: With dead ends: 764 [2024-11-19 03:38:22,676 INFO L226 Difference]: Without dead ends: 740 [2024-11-19 03:38:22,678 INFO L431 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 [2024-11-19 03:38:22,679 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 505 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:38:22,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1070 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:38:22,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2024-11-19 03:38:22,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 740. [2024-11-19 03:38:22,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 499 states have (on average 1.3026052104208417) internal successors, (650), 507 states have internal predecessors, (650), 191 states have call successors, (191), 50 states have call predecessors, (191), 49 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2024-11-19 03:38:22,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1031 transitions. [2024-11-19 03:38:22,750 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1031 transitions. Word has length 136 [2024-11-19 03:38:22,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:38:22,751 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 1031 transitions. [2024-11-19 03:38:22,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 03:38:22,752 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1031 transitions. [2024-11-19 03:38:22,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-19 03:38:22,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:38:22,760 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-19 03:38:22,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 03:38:22,761 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:38:22,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:38:22,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1875247634, now seen corresponding path program 1 times [2024-11-19 03:38:22,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:38:22,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687381477] [2024-11-19 03:38:22,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:38:22,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:38:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:38:23,135 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-11-19 03:38:23,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:38:23,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687381477] [2024-11-19 03:38:23,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687381477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:38:23,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:38:23,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:38:23,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342211183] [2024-11-19 03:38:23,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:38:23,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:38:23,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:38:23,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:38:23,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:38:23,140 INFO L87 Difference]: Start difference. First operand 740 states and 1031 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-19 03:38:25,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:38:26,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:38:26,032 INFO L93 Difference]: Finished difference Result 1697 states and 2316 transitions. [2024-11-19 03:38:26,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:38:26,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 285 [2024-11-19 03:38:26,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:38:26,038 INFO L225 Difference]: With dead ends: 1697 [2024-11-19 03:38:26,038 INFO L226 Difference]: Without dead ends: 985 [2024-11-19 03:38:26,042 INFO L431 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 [2024-11-19 03:38:26,043 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 201 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-19 03:38:26,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 1046 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-19 03:38:26,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2024-11-19 03:38:26,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 970. [2024-11-19 03:38:26,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 653 states have (on average 1.2802450229709035) internal successors, (836), 666 states have internal predecessors, (836), 236 states have call successors, (236), 81 states have call predecessors, (236), 80 states have return successors, (235), 232 states have call predecessors, (235), 235 states have call successors, (235) [2024-11-19 03:38:26,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1307 transitions. [2024-11-19 03:38:26,097 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1307 transitions. Word has length 285 [2024-11-19 03:38:26,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:38:26,098 INFO L471 AbstractCegarLoop]: Abstraction has 970 states and 1307 transitions. [2024-11-19 03:38:26,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-19 03:38:26,098 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1307 transitions. [2024-11-19 03:38:26,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-11-19 03:38:26,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:38:26,107 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:38:26,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 03:38:26,107 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:38:26,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:38:26,108 INFO L85 PathProgramCache]: Analyzing trace with hash 2104957092, now seen corresponding path program 1 times [2024-11-19 03:38:26,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:38:26,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97062879] [2024-11-19 03:38:26,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:38:26,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:38:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:38:26,669 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2024-11-19 03:38:26,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:38:26,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97062879] [2024-11-19 03:38:26,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97062879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:38:26,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:38:26,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:38:26,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107876347] [2024-11-19 03:38:26,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:38:26,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:38:26,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:38:26,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:38:26,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:38:26,675 INFO L87 Difference]: Start difference. First operand 970 states and 1307 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-11-19 03:38:30,687 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 [] [2024-11-19 03:38:30,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:38:30,770 INFO L93 Difference]: Finished difference Result 2554 states and 3462 transitions. [2024-11-19 03:38:30,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:38:30,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 362 [2024-11-19 03:38:30,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:38:30,780 INFO L225 Difference]: With dead ends: 2554 [2024-11-19 03:38:30,780 INFO L226 Difference]: Without dead ends: 1551 [2024-11-19 03:38:30,803 INFO L431 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 [2024-11-19 03:38:30,805 INFO L432 NwaCegarLoop]: 635 mSDtfsCounter, 354 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:38:30,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1150 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-19 03:38:30,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2024-11-19 03:38:30,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1545. [2024-11-19 03:38:30,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1057 states have (on average 1.3065279091769157) internal successors, (1381), 1079 states have internal predecessors, (1381), 361 states have call successors, (361), 127 states have call predecessors, (361), 126 states have return successors, (360), 357 states have call predecessors, (360), 360 states have call successors, (360) [2024-11-19 03:38:30,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2102 transitions. [2024-11-19 03:38:30,874 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2102 transitions. Word has length 362 [2024-11-19 03:38:30,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:38:30,875 INFO L471 AbstractCegarLoop]: Abstraction has 1545 states and 2102 transitions. [2024-11-19 03:38:30,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-11-19 03:38:30,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2102 transitions. [2024-11-19 03:38:30,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-11-19 03:38:30,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:38:30,883 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:38:30,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 03:38:30,883 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:38:30,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:38:30,883 INFO L85 PathProgramCache]: Analyzing trace with hash 138970338, now seen corresponding path program 1 times [2024-11-19 03:38:30,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:38:30,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808146466] [2024-11-19 03:38:30,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:38:30,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:38:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:38:31,206 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2024-11-19 03:38:31,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:38:31,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808146466] [2024-11-19 03:38:31,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808146466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:38:31,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:38:31,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:38:31,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957511404] [2024-11-19 03:38:31,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:38:31,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:38:31,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:38:31,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:38:31,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:38:31,213 INFO L87 Difference]: Start difference. First operand 1545 states and 2102 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2024-11-19 03:38:35,223 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 [] [2024-11-19 03:38:35,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:38:35,273 INFO L93 Difference]: Finished difference Result 2407 states and 3244 transitions. [2024-11-19 03:38:35,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:38:35,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 362 [2024-11-19 03:38:35,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:38:35,283 INFO L225 Difference]: With dead ends: 2407 [2024-11-19 03:38:35,283 INFO L226 Difference]: Without dead ends: 877 [2024-11-19 03:38:35,288 INFO L431 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 [2024-11-19 03:38:35,290 INFO L432 NwaCegarLoop]: 546 mSDtfsCounter, 0 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:38:35,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1087 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-19 03:38:35,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2024-11-19 03:38:35,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 877. [2024-11-19 03:38:35,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 590 states have (on average 1.2728813559322034) internal successors, (751), 601 states have internal predecessors, (751), 207 states have call successors, (207), 80 states have call predecessors, (207), 79 states have return successors, (206), 205 states have call predecessors, (206), 206 states have call successors, (206) [2024-11-19 03:38:35,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1164 transitions. [2024-11-19 03:38:35,325 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1164 transitions. Word has length 362 [2024-11-19 03:38:35,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:38:35,326 INFO L471 AbstractCegarLoop]: Abstraction has 877 states and 1164 transitions. [2024-11-19 03:38:35,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2024-11-19 03:38:35,328 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1164 transitions. [2024-11-19 03:38:35,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-19 03:38:35,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:38:35,333 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 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, 1, 1] [2024-11-19 03:38:35,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 03:38:35,333 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:38:35,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:38:35,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1714172194, now seen corresponding path program 1 times [2024-11-19 03:38:35,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:38:35,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231379058] [2024-11-19 03:38:35,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:38:35,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:38:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:38:35,822 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-19 03:38:35,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:38:35,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231379058] [2024-11-19 03:38:35,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231379058] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:38:35,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999857619] [2024-11-19 03:38:35,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:38:35,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:38:35,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:38:35,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:38:35,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 03:38:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:38:36,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 2199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:38:36,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:38:36,862 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2024-11-19 03:38:36,862 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:38:36,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999857619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:38:36,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:38:36,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-19 03:38:36,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249311280] [2024-11-19 03:38:36,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:38:36,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 03:38:36,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:38:36,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 03:38:36,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:38:36,865 INFO L87 Difference]: Start difference. First operand 877 states and 1164 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2024-11-19 03:38:40,896 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 [] [2024-11-19 03:38:41,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:38:41,284 INFO L93 Difference]: Finished difference Result 2143 states and 2888 transitions. [2024-11-19 03:38:41,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 03:38:41,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 369 [2024-11-19 03:38:41,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:38:41,295 INFO L225 Difference]: With dead ends: 2143 [2024-11-19 03:38:41,296 INFO L226 Difference]: Without dead ends: 1939 [2024-11-19 03:38:41,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:38:41,299 INFO L432 NwaCegarLoop]: 881 mSDtfsCounter, 711 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-19 03:38:41,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1557 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 217 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-19 03:38:41,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2024-11-19 03:38:41,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1931. [2024-11-19 03:38:41,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1931 states, 1329 states have (on average 1.3227990970654628) internal successors, (1758), 1359 states have internal predecessors, (1758), 445 states have call successors, (445), 157 states have call predecessors, (445), 156 states have return successors, (444), 439 states have call predecessors, (444), 444 states have call successors, (444) [2024-11-19 03:38:41,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2647 transitions. [2024-11-19 03:38:41,360 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2647 transitions. Word has length 369 [2024-11-19 03:38:41,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:38:41,361 INFO L471 AbstractCegarLoop]: Abstraction has 1931 states and 2647 transitions. [2024-11-19 03:38:41,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2024-11-19 03:38:41,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2647 transitions. [2024-11-19 03:38:41,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-19 03:38:41,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:38:41,371 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 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, 1, 1] [2024-11-19 03:38:41,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 03:38:41,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-19 03:38:41,573 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:38:41,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:38:41,573 INFO L85 PathProgramCache]: Analyzing trace with hash 870166692, now seen corresponding path program 1 times [2024-11-19 03:38:41,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:38:41,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235125780] [2024-11-19 03:38:41,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:38:41,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:38:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:38:42,039 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-19 03:38:42,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:38:42,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235125780] [2024-11-19 03:38:42,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235125780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:38:42,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:38:42,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 03:38:42,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408209339] [2024-11-19 03:38:42,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:38:42,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 03:38:42,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:38:42,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 03:38:42,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:38:42,042 INFO L87 Difference]: Start difference. First operand 1931 states and 2647 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2024-11-19 03:38:42,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:38:42,172 INFO L93 Difference]: Finished difference Result 5257 states and 7287 transitions. [2024-11-19 03:38:42,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 03:38:42,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 369 [2024-11-19 03:38:42,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:38:42,191 INFO L225 Difference]: With dead ends: 5257 [2024-11-19 03:38:42,191 INFO L226 Difference]: Without dead ends: 3600 [2024-11-19 03:38:42,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 03:38:42,199 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 532 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:38:42,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1983 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:38:42,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3600 states. [2024-11-19 03:38:42,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3600 to 1935. [2024-11-19 03:38:42,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1333 states have (on average 1.3218304576144035) internal successors, (1762), 1365 states have internal predecessors, (1762), 445 states have call successors, (445), 157 states have call predecessors, (445), 156 states have return successors, (444), 437 states have call predecessors, (444), 444 states have call successors, (444) [2024-11-19 03:38:42,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2651 transitions. [2024-11-19 03:38:42,319 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2651 transitions. Word has length 369 [2024-11-19 03:38:42,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:38:42,320 INFO L471 AbstractCegarLoop]: Abstraction has 1935 states and 2651 transitions. [2024-11-19 03:38:42,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2024-11-19 03:38:42,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2651 transitions. [2024-11-19 03:38:42,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2024-11-19 03:38:42,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:38:42,331 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 03:38:42,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 03:38:42,331 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:38:42,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:38:42,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1331479889, now seen corresponding path program 1 times [2024-11-19 03:38:42,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:38:42,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243562882] [2024-11-19 03:38:42,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:38:42,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:38:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:38:43,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1141 trivial. 0 not checked. [2024-11-19 03:38:43,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:38:43,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243562882] [2024-11-19 03:38:43,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243562882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:38:43,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:38:43,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 03:38:43,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299277386] [2024-11-19 03:38:43,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:38:43,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 03:38:43,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:38:43,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 03:38:43,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:38:43,321 INFO L87 Difference]: Start difference. First operand 1935 states and 2651 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) [2024-11-19 03:38:43,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:38:43,395 INFO L93 Difference]: Finished difference Result 3754 states and 5158 transitions. [2024-11-19 03:38:43,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 03:38:43,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) Word has length 510 [2024-11-19 03:38:43,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:38:43,408 INFO L225 Difference]: With dead ends: 3754 [2024-11-19 03:38:43,408 INFO L226 Difference]: Without dead ends: 1938 [2024-11-19 03:38:43,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:38:43,415 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 0 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2662 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:38:43,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2662 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:38:43,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1938 states. [2024-11-19 03:38:43,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1938 to 1935. [2024-11-19 03:38:43,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1333 states have (on average 1.3210802700675168) internal successors, (1761), 1365 states have internal predecessors, (1761), 445 states have call successors, (445), 157 states have call predecessors, (445), 156 states have return successors, (444), 437 states have call predecessors, (444), 444 states have call successors, (444) [2024-11-19 03:38:43,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2650 transitions. [2024-11-19 03:38:43,486 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2650 transitions. Word has length 510 [2024-11-19 03:38:43,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:38:43,487 INFO L471 AbstractCegarLoop]: Abstraction has 1935 states and 2650 transitions. [2024-11-19 03:38:43,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) [2024-11-19 03:38:43,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2650 transitions. [2024-11-19 03:38:43,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2024-11-19 03:38:43,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:38:43,494 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 12, 12, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 03:38:43,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 03:38:43,494 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:38:43,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:38:43,495 INFO L85 PathProgramCache]: Analyzing trace with hash -392470598, now seen corresponding path program 1 times [2024-11-19 03:38:43,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:38:43,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507699604] [2024-11-19 03:38:43,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:38:43,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:38:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:38:43,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1165 trivial. 0 not checked. [2024-11-19 03:38:43,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:38:43,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507699604] [2024-11-19 03:38:43,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507699604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:38:43,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:38:43,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 03:38:43,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948647054] [2024-11-19 03:38:43,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:38:43,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 03:38:43,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:38:43,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 03:38:43,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:38:43,994 INFO L87 Difference]: Start difference. First operand 1935 states and 2650 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2024-11-19 03:38:48,001 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 [] [2024-11-19 03:38:48,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:38:48,080 INFO L93 Difference]: Finished difference Result 3599 states and 4971 transitions. [2024-11-19 03:38:48,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 03:38:48,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 516 [2024-11-19 03:38:48,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:38:48,091 INFO L225 Difference]: With dead ends: 3599 [2024-11-19 03:38:48,091 INFO L226 Difference]: Without dead ends: 1926 [2024-11-19 03:38:48,096 INFO L431 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 [2024-11-19 03:38:48,097 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 0 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:38:48,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2119 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-19 03:38:48,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2024-11-19 03:38:48,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1926. [2024-11-19 03:38:48,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1926 states, 1328 states have (on average 1.3215361445783131) internal successors, (1755), 1360 states have internal predecessors, (1755), 442 states have call successors, (442), 156 states have call predecessors, (442), 155 states have return successors, (441), 434 states have call predecessors, (441), 441 states have call successors, (441) [2024-11-19 03:38:48,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2638 transitions. [2024-11-19 03:38:48,165 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2638 transitions. Word has length 516 [2024-11-19 03:38:48,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:38:48,166 INFO L471 AbstractCegarLoop]: Abstraction has 1926 states and 2638 transitions. [2024-11-19 03:38:48,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2024-11-19 03:38:48,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2638 transitions. [2024-11-19 03:38:48,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2024-11-19 03:38:48,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:38:48,174 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 29, 29, 20, 20, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:38:48,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 03:38:48,174 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:38:48,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:38:48,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1118767474, now seen corresponding path program 1 times [2024-11-19 03:38:48,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:38:48,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790616099] [2024-11-19 03:38:48,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:38:48,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:38:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:38:49,398 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3506 trivial. 0 not checked. [2024-11-19 03:38:49,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:38:49,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790616099] [2024-11-19 03:38:49,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790616099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:38:49,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:38:49,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 03:38:49,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896846646] [2024-11-19 03:38:49,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:38:49,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 03:38:49,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:38:49,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 03:38:49,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:38:49,401 INFO L87 Difference]: Start difference. First operand 1926 states and 2638 transitions. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (72), 3 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-19 03:38:49,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:38:49,500 INFO L93 Difference]: Finished difference Result 3663 states and 5041 transitions. [2024-11-19 03:38:49,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 03:38:49,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (72), 3 states have call predecessors, (72), 2 states have call successors, (72) Word has length 706 [2024-11-19 03:38:49,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:38:49,512 INFO L225 Difference]: With dead ends: 3663 [2024-11-19 03:38:49,513 INFO L226 Difference]: Without dead ends: 1926 [2024-11-19 03:38:49,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:38:49,518 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 0 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2619 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:38:49,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2619 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:38:49,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2024-11-19 03:38:49,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1926. [2024-11-19 03:38:49,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1926 states, 1328 states have (on average 1.3207831325301205) internal successors, (1754), 1360 states have internal predecessors, (1754), 442 states have call successors, (442), 156 states have call predecessors, (442), 155 states have return successors, (441), 434 states have call predecessors, (441), 441 states have call successors, (441) [2024-11-19 03:38:49,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2637 transitions. [2024-11-19 03:38:49,593 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2637 transitions. Word has length 706 [2024-11-19 03:38:49,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:38:49,594 INFO L471 AbstractCegarLoop]: Abstraction has 1926 states and 2637 transitions. [2024-11-19 03:38:49,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (72), 3 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-19 03:38:49,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2637 transitions. [2024-11-19 03:38:49,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2024-11-19 03:38:49,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:38:49,602 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 29, 29, 20, 20, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:38:49,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 03:38:49,602 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:38:49,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:38:49,603 INFO L85 PathProgramCache]: Analyzing trace with hash 551479395, now seen corresponding path program 1 times [2024-11-19 03:38:49,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:38:49,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298809121] [2024-11-19 03:38:49,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:38:49,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:38:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:38:50,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3550 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3530 trivial. 0 not checked. [2024-11-19 03:38:50,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:38:50,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298809121] [2024-11-19 03:38:50,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298809121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:38:50,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109307584] [2024-11-19 03:38:50,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:38:50,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:38:50,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:38:50,743 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:38:50,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 03:38:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:38:51,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 3420 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-19 03:38:51,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:38:52,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3550 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 3381 trivial. 0 not checked. [2024-11-19 03:38:52,032 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:38:52,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109307584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:38:52,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:38:52,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-19 03:38:52,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301478478] [2024-11-19 03:38:52,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:38:52,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 03:38:52,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:38:52,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 03:38:52,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:38:52,034 INFO L87 Difference]: Start difference. First operand 1926 states and 2637 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2024-11-19 03:38:52,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:38:52,119 INFO L93 Difference]: Finished difference Result 3834 states and 5257 transitions. [2024-11-19 03:38:52,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 03:38:52,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 712 [2024-11-19 03:38:52,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:38:52,133 INFO L225 Difference]: With dead ends: 3834 [2024-11-19 03:38:52,134 INFO L226 Difference]: Without dead ends: 1927 [2024-11-19 03:38:52,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 711 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:38:52,143 INFO L432 NwaCegarLoop]: 523 mSDtfsCounter, 0 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:38:52,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1555 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:38:52,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2024-11-19 03:38:52,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1927. [2024-11-19 03:38:52,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1927 states, 1329 states have (on average 1.3205417607223475) internal successors, (1755), 1361 states have internal predecessors, (1755), 442 states have call successors, (442), 156 states have call predecessors, (442), 155 states have return successors, (441), 434 states have call predecessors, (441), 441 states have call successors, (441) [2024-11-19 03:38:52,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2638 transitions. [2024-11-19 03:38:52,232 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2638 transitions. Word has length 712 [2024-11-19 03:38:52,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:38:52,232 INFO L471 AbstractCegarLoop]: Abstraction has 1927 states and 2638 transitions. [2024-11-19 03:38:52,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2024-11-19 03:38:52,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2638 transitions. [2024-11-19 03:38:52,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2024-11-19 03:38:52,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:38:52,246 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 29, 29, 20, 20, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:38:52,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 03:38:52,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-19 03:38:52,447 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:38:52,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:38:52,447 INFO L85 PathProgramCache]: Analyzing trace with hash -986869479, now seen corresponding path program 1 times [2024-11-19 03:38:52,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:38:52,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436283441] [2024-11-19 03:38:52,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:38:52,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:38:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:38:53,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3601 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 3565 trivial. 0 not checked. [2024-11-19 03:38:53,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:38:53,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436283441] [2024-11-19 03:38:53,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436283441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:38:53,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059406579] [2024-11-19 03:38:53,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:38:53,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:38:53,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:38:53,647 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:38:53,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 03:38:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:38:54,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 3510 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-19 03:38:54,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:38:54,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3601 backedges. 230 proven. 1 refuted. 0 times theorem prover too weak. 3370 trivial. 0 not checked. [2024-11-19 03:38:54,993 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 03:38:55,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3601 backedges. 14 proven. 22 refuted. 0 times theorem prover too weak. 3565 trivial. 0 not checked. [2024-11-19 03:38:55,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059406579] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 03:38:55,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 03:38:55,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-19 03:38:55,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656701288] [2024-11-19 03:38:55,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 03:38:55,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 03:38:55,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:38:55,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 03:38:55,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-19 03:38:55,764 INFO L87 Difference]: Start difference. First operand 1927 states and 2638 transitions. Second operand has 11 states, 11 states have (on average 21.454545454545453) internal successors, (236), 11 states have internal predecessors, (236), 2 states have call successors, (140), 2 states have call predecessors, (140), 5 states have return successors, (141), 2 states have call predecessors, (141), 2 states have call successors, (141) [2024-11-19 03:38:56,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:38:56,074 INFO L93 Difference]: Finished difference Result 3848 states and 5275 transitions. [2024-11-19 03:38:56,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 03:38:56,076 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 21.454545454545453) internal successors, (236), 11 states have internal predecessors, (236), 2 states have call successors, (140), 2 states have call predecessors, (140), 5 states have return successors, (141), 2 states have call predecessors, (141), 2 states have call successors, (141) Word has length 718 [2024-11-19 03:38:56,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:38:56,088 INFO L225 Difference]: With dead ends: 3848 [2024-11-19 03:38:56,089 INFO L226 Difference]: Without dead ends: 1937 [2024-11-19 03:38:56,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1446 GetRequests, 1430 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2024-11-19 03:38:56,097 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 12 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2559 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:38:56,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2559 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 03:38:56,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2024-11-19 03:38:56,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1937. [2024-11-19 03:38:56,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1937 states, 1338 states have (on average 1.3191330343796712) internal successors, (1765), 1370 states have internal predecessors, (1765), 442 states have call successors, (442), 157 states have call predecessors, (442), 156 states have return successors, (441), 434 states have call predecessors, (441), 441 states have call successors, (441) [2024-11-19 03:38:56,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 2648 transitions. [2024-11-19 03:38:56,201 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 2648 transitions. Word has length 718 [2024-11-19 03:38:56,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:38:56,201 INFO L471 AbstractCegarLoop]: Abstraction has 1937 states and 2648 transitions. [2024-11-19 03:38:56,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.454545454545453) internal successors, (236), 11 states have internal predecessors, (236), 2 states have call successors, (140), 2 states have call predecessors, (140), 5 states have return successors, (141), 2 states have call predecessors, (141), 2 states have call successors, (141) [2024-11-19 03:38:56,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 2648 transitions. [2024-11-19 03:38:56,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2024-11-19 03:38:56,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:38:56,209 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 29, 29, 20, 20, 16, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:38:56,240 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 03:38:56,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:38:56,414 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:38:56,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:38:56,415 INFO L85 PathProgramCache]: Analyzing trace with hash -369280349, now seen corresponding path program 2 times [2024-11-19 03:38:56,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:38:56,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685974459] [2024-11-19 03:38:56,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 03:38:56,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:38:56,932 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 03:38:56,932 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 03:38:57,728 INFO L134 CoverageAnalysis]: Checked inductivity of 3766 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 3691 trivial. 0 not checked. [2024-11-19 03:38:57,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:38:57,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685974459] [2024-11-19 03:38:57,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685974459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:38:57,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340826232] [2024-11-19 03:38:57,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 03:38:57,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:38:57,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:38:57,731 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:38:57,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process