./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 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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-803cd42-m [2024-11-22 15:37:01,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 15:37:01,210 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 15:37:01,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 15:37:01,216 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 15:37:01,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 15:37:01,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 15:37:01,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 15:37:01,270 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 15:37:01,270 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 15:37:01,271 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 15:37:01,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 15:37:01,272 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 15:37:01,276 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 15:37:01,276 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 15:37:01,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 15:37:01,277 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 15:37:01,277 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 15:37:01,277 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 15:37:01,277 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 15:37:01,278 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 15:37:01,278 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 15:37:01,278 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 15:37:01,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 15:37:01,279 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 15:37:01,279 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 15:37:01,279 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 15:37:01,280 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 15:37:01,280 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 15:37:01,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 15:37:01,281 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 15:37:01,281 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 15:37:01,281 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 15:37:01,281 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 15:37:01,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 15:37:01,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 15:37:01,282 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 15:37:01,283 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 15:37:01,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 15:37:01,283 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8954b1975c9ef274050a4ed05b880cddaf4747278343623028f38a4ef8e6ca73 [2024-11-22 15:37:01,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 15:37:01,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 15:37:01,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 15:37:01,562 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 15:37:01,563 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 15:37:01,564 INFO L431 ainManager$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 [2024-11-22 15:37:02,955 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 15:37:03,324 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 15:37:03,325 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 [2024-11-22 15:37:03,359 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199268339/55bcf93e247c40f492b74198b3649745/FLAGe14dc0bdf [2024-11-22 15:37:03,370 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199268339/55bcf93e247c40f492b74198b3649745 [2024-11-22 15:37:03,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 15:37:03,376 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 15:37:03,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 15:37:03,377 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 15:37:03,385 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 15:37:03,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:37:03" (1/1) ... [2024-11-22 15:37:03,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445061ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:03, skipping insertion in model container [2024-11-22 15:37:03,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:37:03" (1/1) ... [2024-11-22 15:37:03,470 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 15:37:04,198 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] [2024-11-22 15:37:04,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 15:37:04,266 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 15:37:04,341 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] [2024-11-22 15:37:04,343 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] [2024-11-22 15:37:04,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [3242] [2024-11-22 15:37:04,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [3250] [2024-11-22 15:37:04,373 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] [2024-11-22 15:37:04,384 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] [2024-11-22 15:37:04,384 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] [2024-11-22 15:37:04,384 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] [2024-11-22 15:37:04,384 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] [2024-11-22 15:37:04,384 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] [2024-11-22 15:37:04,385 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] [2024-11-22 15:37:04,385 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] [2024-11-22 15:37:04,385 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] [2024-11-22 15:37:04,386 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] [2024-11-22 15:37:04,386 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] [2024-11-22 15:37:04,389 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] [2024-11-22 15:37:04,391 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] [2024-11-22 15:37:04,394 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] [2024-11-22 15:37:04,394 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] [2024-11-22 15:37:04,395 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] [2024-11-22 15:37:04,395 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] [2024-11-22 15:37:04,395 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] [2024-11-22 15:37:04,419 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] [2024-11-22 15:37:04,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 15:37:04,477 INFO L204 MainTranslator]: Completed translation [2024-11-22 15:37:04,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:04 WrapperNode [2024-11-22 15:37:04,478 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 15:37:04,479 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 15:37:04,480 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 15:37:04,480 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 15:37:04,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:04" (1/1) ... [2024-11-22 15:37:04,528 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:04" (1/1) ... [2024-11-22 15:37:04,643 INFO L138 Inliner]: procedures = 101, calls = 323, calls flagged for inlining = 40, calls inlined = 37, statements flattened = 985 [2024-11-22 15:37:04,647 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 15:37:04,648 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 15:37:04,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 15:37:04,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 15:37:04,662 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:04" (1/1) ... [2024-11-22 15:37:04,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:04" (1/1) ... [2024-11-22 15:37:04,677 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:04" (1/1) ... [2024-11-22 15:37:04,745 INFO L175 MemorySlicer]: Split 104 memory accesses to 13 slices as follows [2, 9, 10, 1, 2, 26, 8, 1, 0, 1, 29, 12, 3]. 28 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 0, 10, 0, 0, 0, 8, 0, 0, 1, 0, 0, 3]. The 71 writes are split as follows [0, 2, 0, 1, 1, 26, 0, 0, 0, 0, 29, 12, 0]. [2024-11-22 15:37:04,745 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:04" (1/1) ... [2024-11-22 15:37:04,746 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:04" (1/1) ... [2024-11-22 15:37:04,776 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:04" (1/1) ... [2024-11-22 15:37:04,782 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:04" (1/1) ... [2024-11-22 15:37:04,792 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:04" (1/1) ... [2024-11-22 15:37:04,798 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:04" (1/1) ... [2024-11-22 15:37:04,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 15:37:04,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 15:37:04,814 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 15:37:04,814 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 15:37:04,815 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:04" (1/1) ... [2024-11-22 15:37:04,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 15:37:04,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:37:04,853 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) [2024-11-22 15:37:04,856 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 [2024-11-22 15:37:04,899 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2024-11-22 15:37:04,899 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2024-11-22 15:37:04,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 15:37:04,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 15:37:04,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 15:37:04,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 15:37:04,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-22 15:37:04,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-22 15:37:04,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-22 15:37:04,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-22 15:37:04,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-22 15:37:04,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-22 15:37:04,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-22 15:37:04,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-22 15:37:04,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-22 15:37:04,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-22 15:37:04,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-22 15:37:04,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-22 15:37:04,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-22 15:37:04,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-22 15:37:04,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-22 15:37:04,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-22 15:37:04,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-22 15:37:04,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-22 15:37:04,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-22 15:37:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-22 15:37:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-22 15:37:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-22 15:37:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-22 15:37:04,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-22 15:37:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 15:37:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 15:37:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 15:37:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 15:37:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 15:37:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 15:37:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 15:37:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-22 15:37:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-22 15:37:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-22 15:37:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-22 15:37:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-22 15:37:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-22 15:37:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-22 15:37:04,904 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-22 15:37:04,904 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_disable_sw_wd_trg [2024-11-22 15:37:04,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_disable_sw_wd_trg [2024-11-22 15:37:04,904 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2024-11-22 15:37:04,904 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2024-11-22 15:37:04,904 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable_sw_wd_trg [2024-11-22 15:37:04,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable_sw_wd_trg [2024-11-22 15:37:04,905 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-22 15:37:04,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-22 15:37:04,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 15:37:04,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 15:37:04,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 15:37:04,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 15:37:04,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 15:37:04,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 15:37:04,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 15:37:04,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-22 15:37:04,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-22 15:37:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-22 15:37:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-22 15:37:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-22 15:37:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-22 15:37:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-22 15:37:04,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-22 15:37:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_write [2024-11-22 15:37:04,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_write [2024-11-22 15:37:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_disable [2024-11-22 15:37:04,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_disable [2024-11-22 15:37:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_disable_sw_wd_tren [2024-11-22 15:37:04,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_disable_sw_wd_tren [2024-11-22 15:37:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-22 15:37:04,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-22 15:37:04,909 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 15:37:04,909 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 15:37:04,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 15:37:04,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-22 15:37:04,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-22 15:37:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_refresh [2024-11-22 15:37:04,910 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_refresh [2024-11-22 15:37:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable_sw_wd_tren [2024-11-22 15:37:04,910 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable_sw_wd_tren [2024-11-22 15:37:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 15:37:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 15:37:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 15:37:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 15:37:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 15:37:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 15:37:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-22 15:37:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-22 15:37:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-22 15:37:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-22 15:37:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-22 15:37:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-22 15:37:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-22 15:37:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-22 15:37:04,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 15:37:04,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 15:37:04,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 15:37:04,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 15:37:04,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 15:37:04,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 15:37:04,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-22 15:37:04,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-22 15:37:04,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-22 15:37:04,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-22 15:37:04,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-22 15:37:04,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-22 15:37:04,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-22 15:37:04,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-22 15:37:04,914 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable [2024-11-22 15:37:04,914 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable [2024-11-22 15:37:04,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 15:37:04,915 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable_wden [2024-11-22 15:37:04,915 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable_wden [2024-11-22 15:37:04,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-22 15:37:04,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-22 15:37:04,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-22 15:37:04,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-22 15:37:04,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-22 15:37:04,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-22 15:37:04,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-22 15:37:04,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-22 15:37:04,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-22 15:37:04,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-22 15:37:04,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-22 15:37:04,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-22 15:37:04,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-22 15:37:04,918 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-22 15:37:04,918 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-22 15:37:04,919 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-22 15:37:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-22 15:37:04,919 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2024-11-22 15:37:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2024-11-22 15:37:04,919 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-22 15:37:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-22 15:37:04,919 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-22 15:37:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-22 15:37:04,919 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-22 15:37:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-22 15:37:04,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 15:37:04,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 15:37:04,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 15:37:04,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 15:37:04,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 15:37:04,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 15:37:04,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 15:37:04,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 15:37:04,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 15:37:04,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 15:37:04,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 15:37:04,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 15:37:04,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 15:37:04,921 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2024-11-22 15:37:04,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2024-11-22 15:37:04,921 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_swc_bank3 [2024-11-22 15:37:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_swc_bank3 [2024-11-22 15:37:04,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 15:37:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 15:37:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_programm_wdto [2024-11-22 15:37:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_programm_wdto [2024-11-22 15:37:05,217 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 15:37:05,221 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 15:37:05,258 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-22 15:37:13,210 INFO L? ?]: Removed 364 outVars from TransFormulas that were not future-live. [2024-11-22 15:37:13,210 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 15:37:13,242 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 15:37:13,242 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 15:37:13,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:37:13 BoogieIcfgContainer [2024-11-22 15:37:13,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 15:37:13,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 15:37:13,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 15:37:13,249 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 15:37:13,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:37:03" (1/3) ... [2024-11-22 15:37:13,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9d6aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:37:13, skipping insertion in model container [2024-11-22 15:37:13,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:04" (2/3) ... [2024-11-22 15:37:13,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9d6aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:37:13, skipping insertion in model container [2024-11-22 15:37:13,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:37:13" (3/3) ... [2024-11-22 15:37:13,251 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i [2024-11-22 15:37:13,268 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 15:37:13,269 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 15:37:13,345 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 15:37:13,352 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;@3a392555, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 15:37:13,352 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 15:37:13,360 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) [2024-11-22 15:37:13,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-22 15:37:13,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:37:13,380 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] [2024-11-22 15:37:13,381 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:37:13,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:37:13,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1807320948, now seen corresponding path program 1 times [2024-11-22 15:37:13,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:37:13,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426420549] [2024-11-22 15:37:13,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:37:13,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:37:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:37:14,503 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-22 15:37:14,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:37:14,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426420549] [2024-11-22 15:37:14,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426420549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:37:14,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:37:14,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 15:37:14,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354627084] [2024-11-22 15:37:14,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:37:14,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 15:37:14,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:37:14,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 15:37:14,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 15:37:14,541 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) [2024-11-22 15:37:18,567 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 [] [2024-11-22 15:37:18,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:37:18,721 INFO L93 Difference]: Finished difference Result 815 states and 1173 transitions. [2024-11-22 15:37:18,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 15:37:18,724 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 [2024-11-22 15:37:18,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:37:18,742 INFO L225 Difference]: With dead ends: 815 [2024-11-22 15:37:18,743 INFO L226 Difference]: Without dead ends: 401 [2024-11-22 15:37:18,750 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 [2024-11-22 15:37:18,756 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 [2024-11-22 15:37:18,758 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] [2024-11-22 15:37:18,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-22 15:37:18,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 396. [2024-11-22 15:37:18,842 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) [2024-11-22 15:37:18,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 551 transitions. [2024-11-22 15:37:18,852 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 551 transitions. Word has length 136 [2024-11-22 15:37:18,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:37:18,855 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 551 transitions. [2024-11-22 15:37:18,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-11-22 15:37:18,856 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 551 transitions. [2024-11-22 15:37:18,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-22 15:37:18,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:37:18,860 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] [2024-11-22 15:37:18,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 15:37:18,861 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:37:18,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:37:18,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1750062646, now seen corresponding path program 1 times [2024-11-22 15:37:18,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:37:18,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78850001] [2024-11-22 15:37:18,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:37:18,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:37:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:37:19,313 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-22 15:37:19,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:37:19,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78850001] [2024-11-22 15:37:19,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78850001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:37:19,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:37:19,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:37:19,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694981657] [2024-11-22 15:37:19,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:37:19,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:37:19,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:37:19,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:37:19,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:37:19,320 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) [2024-11-22 15:37:19,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:37:19,388 INFO L93 Difference]: Finished difference Result 764 states and 1064 transitions. [2024-11-22 15:37:19,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:37:19,389 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 [2024-11-22 15:37:19,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:37:19,401 INFO L225 Difference]: With dead ends: 764 [2024-11-22 15:37:19,402 INFO L226 Difference]: Without dead ends: 740 [2024-11-22 15:37:19,403 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 [2024-11-22 15:37:19,404 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 [2024-11-22 15:37:19,406 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] [2024-11-22 15:37:19,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2024-11-22 15:37:19,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 740. [2024-11-22 15:37:19,474 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) [2024-11-22 15:37:19,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1031 transitions. [2024-11-22 15:37:19,482 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1031 transitions. Word has length 136 [2024-11-22 15:37:19,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:37:19,483 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 1031 transitions. [2024-11-22 15:37:19,484 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) [2024-11-22 15:37:19,484 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1031 transitions. [2024-11-22 15:37:19,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-22 15:37:19,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:37:19,494 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] [2024-11-22 15:37:19,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 15:37:19,495 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:37:19,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:37:19,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1875247634, now seen corresponding path program 1 times [2024-11-22 15:37:19,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:37:19,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933693727] [2024-11-22 15:37:19,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:37:19,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:37:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:37:19,967 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-11-22 15:37:19,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:37:19,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933693727] [2024-11-22 15:37:19,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933693727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:37:19,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:37:19,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:37:19,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974873105] [2024-11-22 15:37:19,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:37:19,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:37:19,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:37:19,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:37:19,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:37:19,973 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) [2024-11-22 15:37:23,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 15:37:23,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:37:23,559 INFO L93 Difference]: Finished difference Result 1697 states and 2316 transitions. [2024-11-22 15:37:23,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:37:23,560 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 [2024-11-22 15:37:23,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:37:23,566 INFO L225 Difference]: With dead ends: 1697 [2024-11-22 15:37:23,566 INFO L226 Difference]: Without dead ends: 985 [2024-11-22 15:37:23,570 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 [2024-11-22 15:37:23,572 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 201 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s 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, 3.5s IncrementalHoareTripleChecker+Time [2024-11-22 15:37:23,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 1046 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-22 15:37:23,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2024-11-22 15:37:23,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 970. [2024-11-22 15:37:23,627 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) [2024-11-22 15:37:23,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1307 transitions. [2024-11-22 15:37:23,633 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1307 transitions. Word has length 285 [2024-11-22 15:37:23,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:37:23,634 INFO L471 AbstractCegarLoop]: Abstraction has 970 states and 1307 transitions. [2024-11-22 15:37:23,634 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) [2024-11-22 15:37:23,634 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1307 transitions. [2024-11-22 15:37:23,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-11-22 15:37:23,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:37:23,641 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] [2024-11-22 15:37:23,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 15:37:23,641 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:37:23,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:37:23,642 INFO L85 PathProgramCache]: Analyzing trace with hash 2104957092, now seen corresponding path program 1 times [2024-11-22 15:37:23,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:37:23,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102520878] [2024-11-22 15:37:23,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:37:23,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:37:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:37:24,186 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2024-11-22 15:37:24,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:37:24,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102520878] [2024-11-22 15:37:24,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102520878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:37:24,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:37:24,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:37:24,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812159585] [2024-11-22 15:37:24,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:37:24,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:37:24,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:37:24,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:37:24,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:37:24,190 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) [2024-11-22 15:37:28,202 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 [] [2024-11-22 15:37:28,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:37:28,310 INFO L93 Difference]: Finished difference Result 2554 states and 3462 transitions. [2024-11-22 15:37:28,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:37:28,311 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 [2024-11-22 15:37:28,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:37:28,323 INFO L225 Difference]: With dead ends: 2554 [2024-11-22 15:37:28,323 INFO L226 Difference]: Without dead ends: 1551 [2024-11-22 15:37:28,327 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 [2024-11-22 15:37:28,328 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, 4.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:37:28,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1150 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-22 15:37:28,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2024-11-22 15:37:28,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1545. [2024-11-22 15:37:28,407 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) [2024-11-22 15:37:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2102 transitions. [2024-11-22 15:37:28,417 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2102 transitions. Word has length 362 [2024-11-22 15:37:28,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:37:28,419 INFO L471 AbstractCegarLoop]: Abstraction has 1545 states and 2102 transitions. [2024-11-22 15:37:28,419 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) [2024-11-22 15:37:28,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2102 transitions. [2024-11-22 15:37:28,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-11-22 15:37:28,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:37:28,428 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] [2024-11-22 15:37:28,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 15:37:28,428 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:37:28,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:37:28,429 INFO L85 PathProgramCache]: Analyzing trace with hash 138970338, now seen corresponding path program 1 times [2024-11-22 15:37:28,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:37:28,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004293811] [2024-11-22 15:37:28,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:37:28,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:37:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:37:28,887 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2024-11-22 15:37:28,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:37:28,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004293811] [2024-11-22 15:37:28,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004293811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:37:28,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:37:28,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:37:28,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967814580] [2024-11-22 15:37:28,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:37:28,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:37:28,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:37:28,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:37:28,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:37:28,890 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) [2024-11-22 15:37:32,905 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 [] [2024-11-22 15:37:32,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:37:32,966 INFO L93 Difference]: Finished difference Result 2407 states and 3244 transitions. [2024-11-22 15:37:32,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:37:32,967 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 [2024-11-22 15:37:32,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:37:32,973 INFO L225 Difference]: With dead ends: 2407 [2024-11-22 15:37:32,974 INFO L226 Difference]: Without dead ends: 877 [2024-11-22 15:37:32,978 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 [2024-11-22 15:37:32,979 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 [2024-11-22 15:37:32,979 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] [2024-11-22 15:37:32,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2024-11-22 15:37:33,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 877. [2024-11-22 15:37:33,017 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) [2024-11-22 15:37:33,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1164 transitions. [2024-11-22 15:37:33,024 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1164 transitions. Word has length 362 [2024-11-22 15:37:33,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:37:33,025 INFO L471 AbstractCegarLoop]: Abstraction has 877 states and 1164 transitions. [2024-11-22 15:37:33,026 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) [2024-11-22 15:37:33,026 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1164 transitions. [2024-11-22 15:37:33,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-22 15:37:33,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:37:33,033 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] [2024-11-22 15:37:33,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 15:37:33,033 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:37:33,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:37:33,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1714172194, now seen corresponding path program 1 times [2024-11-22 15:37:33,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:37:33,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979232529] [2024-11-22 15:37:33,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:37:33,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:37:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:37:33,564 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-22 15:37:33,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:37:33,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979232529] [2024-11-22 15:37:33,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979232529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:37:33,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972590657] [2024-11-22 15:37:33,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:37:33,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:37:33,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:37:33,568 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) [2024-11-22 15:37:33,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 15:37:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:37:34,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 2199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 15:37:34,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:37:34,866 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2024-11-22 15:37:34,866 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:37:34,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972590657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:37:34,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:37:34,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-22 15:37:34,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48592870] [2024-11-22 15:37:34,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:37:34,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 15:37:34,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:37:34,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 15:37:34,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:37:34,870 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) [2024-11-22 15:37:38,882 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 [] [2024-11-22 15:37:39,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:37:39,388 INFO L93 Difference]: Finished difference Result 2143 states and 2888 transitions. [2024-11-22 15:37:39,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 15:37:39,389 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 [2024-11-22 15:37:39,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:37:39,402 INFO L225 Difference]: With dead ends: 2143 [2024-11-22 15:37:39,403 INFO L226 Difference]: Without dead ends: 1939 [2024-11-22 15:37:39,404 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 [2024-11-22 15:37:39,405 INFO L432 NwaCegarLoop]: 881 mSDtfsCounter, 711 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s 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, 4.4s IncrementalHoareTripleChecker+Time [2024-11-22 15:37:39,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1557 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 217 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-11-22 15:37:39,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2024-11-22 15:37:39,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1931. [2024-11-22 15:37:39,519 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) [2024-11-22 15:37:39,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2647 transitions. [2024-11-22 15:37:39,534 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2647 transitions. Word has length 369 [2024-11-22 15:37:39,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:37:39,536 INFO L471 AbstractCegarLoop]: Abstraction has 1931 states and 2647 transitions. [2024-11-22 15:37:39,536 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) [2024-11-22 15:37:39,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2647 transitions. [2024-11-22 15:37:39,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-22 15:37:39,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:37:39,547 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] [2024-11-22 15:37:39,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 15:37:39,747 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 [2024-11-22 15:37:39,748 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:37:39,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:37:39,749 INFO L85 PathProgramCache]: Analyzing trace with hash 870166692, now seen corresponding path program 1 times [2024-11-22 15:37:39,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:37:39,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359736787] [2024-11-22 15:37:39,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:37:39,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:37:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:37:40,317 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-22 15:37:40,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:37:40,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359736787] [2024-11-22 15:37:40,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359736787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:37:40,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:37:40,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 15:37:40,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853722092] [2024-11-22 15:37:40,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:37:40,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 15:37:40,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:37:40,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 15:37:40,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:37:40,322 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) [2024-11-22 15:37:40,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:37:40,527 INFO L93 Difference]: Finished difference Result 5257 states and 7287 transitions. [2024-11-22 15:37:40,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 15:37:40,528 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 [2024-11-22 15:37:40,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:37:40,552 INFO L225 Difference]: With dead ends: 5257 [2024-11-22 15:37:40,552 INFO L226 Difference]: Without dead ends: 3600 [2024-11-22 15:37:40,560 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 [2024-11-22 15:37:40,561 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 [2024-11-22 15:37:40,562 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] [2024-11-22 15:37:40,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3600 states. [2024-11-22 15:37:40,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3600 to 1935. [2024-11-22 15:37:40,683 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) [2024-11-22 15:37:40,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2651 transitions. [2024-11-22 15:37:40,697 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2651 transitions. Word has length 369 [2024-11-22 15:37:40,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:37:40,698 INFO L471 AbstractCegarLoop]: Abstraction has 1935 states and 2651 transitions. [2024-11-22 15:37:40,699 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) [2024-11-22 15:37:40,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2651 transitions. [2024-11-22 15:37:40,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2024-11-22 15:37:40,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:37:40,712 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] [2024-11-22 15:37:40,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 15:37:40,712 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:37:40,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:37:40,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1331479889, now seen corresponding path program 1 times [2024-11-22 15:37:40,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:37:40,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235251969] [2024-11-22 15:37:40,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:37:40,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:37:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:37:42,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1141 trivial. 0 not checked. [2024-11-22 15:37:42,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:37:42,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235251969] [2024-11-22 15:37:42,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235251969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:37:42,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:37:42,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 15:37:42,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855743884] [2024-11-22 15:37:42,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:37:42,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 15:37:42,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:37:42,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 15:37:42,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 15:37:42,029 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) [2024-11-22 15:37:42,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:37:42,143 INFO L93 Difference]: Finished difference Result 3754 states and 5158 transitions. [2024-11-22 15:37:42,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 15:37:42,144 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 [2024-11-22 15:37:42,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:37:42,156 INFO L225 Difference]: With dead ends: 3754 [2024-11-22 15:37:42,157 INFO L226 Difference]: Without dead ends: 1938 [2024-11-22 15:37:42,163 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 [2024-11-22 15:37:42,163 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 [2024-11-22 15:37:42,164 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] [2024-11-22 15:37:42,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1938 states. [2024-11-22 15:37:42,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1938 to 1935. [2024-11-22 15:37:42,245 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) [2024-11-22 15:37:42,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2650 transitions. [2024-11-22 15:37:42,257 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2650 transitions. Word has length 510 [2024-11-22 15:37:42,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:37:42,258 INFO L471 AbstractCegarLoop]: Abstraction has 1935 states and 2650 transitions. [2024-11-22 15:37:42,258 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) [2024-11-22 15:37:42,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2650 transitions. [2024-11-22 15:37:42,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2024-11-22 15:37:42,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:37:42,271 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] [2024-11-22 15:37:42,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 15:37:42,271 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:37:42,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:37:42,272 INFO L85 PathProgramCache]: Analyzing trace with hash -392470598, now seen corresponding path program 1 times [2024-11-22 15:37:42,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:37:42,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146752160] [2024-11-22 15:37:42,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:37:42,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:37:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:37:42,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1165 trivial. 0 not checked. [2024-11-22 15:37:42,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:37:42,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146752160] [2024-11-22 15:37:42,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146752160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:37:42,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:37:42,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 15:37:42,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595630450] [2024-11-22 15:37:42,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:37:42,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 15:37:42,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:37:42,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 15:37:42,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:37:42,853 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) [2024-11-22 15:37:46,864 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 [] [2024-11-22 15:37:47,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:37:47,022 INFO L93 Difference]: Finished difference Result 3599 states and 4971 transitions. [2024-11-22 15:37:47,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 15:37:47,023 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 [2024-11-22 15:37:47,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:37:47,038 INFO L225 Difference]: With dead ends: 3599 [2024-11-22 15:37:47,038 INFO L226 Difference]: Without dead ends: 1926 [2024-11-22 15:37:47,045 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 [2024-11-22 15:37:47,048 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 [2024-11-22 15:37:47,048 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] [2024-11-22 15:37:47,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2024-11-22 15:37:47,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1926. [2024-11-22 15:37:47,135 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) [2024-11-22 15:37:47,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2638 transitions. [2024-11-22 15:37:47,147 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2638 transitions. Word has length 516 [2024-11-22 15:37:47,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:37:47,147 INFO L471 AbstractCegarLoop]: Abstraction has 1926 states and 2638 transitions. [2024-11-22 15:37:47,148 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) [2024-11-22 15:37:47,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2638 transitions. [2024-11-22 15:37:47,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2024-11-22 15:37:47,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:37:47,157 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] [2024-11-22 15:37:47,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 15:37:47,158 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:37:47,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:37:47,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1118767474, now seen corresponding path program 1 times [2024-11-22 15:37:47,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:37:47,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790650057] [2024-11-22 15:37:47,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:37:47,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:37:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:37:48,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3506 trivial. 0 not checked. [2024-11-22 15:37:48,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:37:48,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790650057] [2024-11-22 15:37:48,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790650057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:37:48,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:37:48,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 15:37:48,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239418922] [2024-11-22 15:37:48,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:37:48,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 15:37:48,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:37:48,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 15:37:48,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 15:37:48,656 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) [2024-11-22 15:37:48,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:37:48,765 INFO L93 Difference]: Finished difference Result 3663 states and 5041 transitions. [2024-11-22 15:37:48,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 15:37:48,766 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 [2024-11-22 15:37:48,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:37:48,785 INFO L225 Difference]: With dead ends: 3663 [2024-11-22 15:37:48,785 INFO L226 Difference]: Without dead ends: 1926 [2024-11-22 15:37:48,791 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 [2024-11-22 15:37:48,792 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 [2024-11-22 15:37:48,820 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] [2024-11-22 15:37:48,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2024-11-22 15:37:48,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1926. [2024-11-22 15:37:48,940 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) [2024-11-22 15:37:48,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2637 transitions. [2024-11-22 15:37:48,956 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2637 transitions. Word has length 706 [2024-11-22 15:37:48,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:37:48,959 INFO L471 AbstractCegarLoop]: Abstraction has 1926 states and 2637 transitions. [2024-11-22 15:37:48,960 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) [2024-11-22 15:37:48,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2637 transitions. [2024-11-22 15:37:48,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2024-11-22 15:37:48,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:37:48,975 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] [2024-11-22 15:37:48,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 15:37:48,976 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:37:48,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:37:48,977 INFO L85 PathProgramCache]: Analyzing trace with hash 551479395, now seen corresponding path program 1 times [2024-11-22 15:37:48,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:37:48,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988363322] [2024-11-22 15:37:48,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:37:48,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:37:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:37:50,365 INFO L134 CoverageAnalysis]: Checked inductivity of 3550 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3530 trivial. 0 not checked. [2024-11-22 15:37:50,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:37:50,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988363322] [2024-11-22 15:37:50,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988363322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:37:50,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200227866] [2024-11-22 15:37:50,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:37:50,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:37:50,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:37:50,369 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) [2024-11-22 15:37:50,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 15:37:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:37:51,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 3420 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 15:37:51,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:37:51,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3550 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 3381 trivial. 0 not checked. [2024-11-22 15:37:51,941 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:37:51,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200227866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:37:51,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:37:51,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 15:37:51,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595436574] [2024-11-22 15:37:51,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:37:51,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 15:37:51,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:37:51,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 15:37:51,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 15:37:51,948 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) [2024-11-22 15:37:52,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:37:52,070 INFO L93 Difference]: Finished difference Result 3834 states and 5257 transitions. [2024-11-22 15:37:52,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 15:37:52,071 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 [2024-11-22 15:37:52,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:37:52,083 INFO L225 Difference]: With dead ends: 3834 [2024-11-22 15:37:52,084 INFO L226 Difference]: Without dead ends: 1927 [2024-11-22 15:37:52,091 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 [2024-11-22 15:37:52,092 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 [2024-11-22 15:37:52,093 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] [2024-11-22 15:37:52,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2024-11-22 15:37:52,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1927. [2024-11-22 15:37:52,178 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) [2024-11-22 15:37:52,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2638 transitions. [2024-11-22 15:37:52,198 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2638 transitions. Word has length 712 [2024-11-22 15:37:52,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:37:52,198 INFO L471 AbstractCegarLoop]: Abstraction has 1927 states and 2638 transitions. [2024-11-22 15:37:52,202 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) [2024-11-22 15:37:52,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2638 transitions. [2024-11-22 15:37:52,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2024-11-22 15:37:52,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:37:52,218 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] [2024-11-22 15:37:52,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 15:37:52,418 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 [2024-11-22 15:37:52,419 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:37:52,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:37:52,420 INFO L85 PathProgramCache]: Analyzing trace with hash -986869479, now seen corresponding path program 1 times [2024-11-22 15:37:52,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:37:52,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97145248] [2024-11-22 15:37:52,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:37:52,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:37:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:37:54,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3601 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 3565 trivial. 0 not checked. [2024-11-22 15:37:54,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:37:54,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97145248] [2024-11-22 15:37:54,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97145248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:37:54,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263608736] [2024-11-22 15:37:54,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:37:54,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:37:54,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:37:54,060 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) [2024-11-22 15:37:54,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 15:37:55,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:37:55,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 3510 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-22 15:37:55,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:37:55,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3601 backedges. 184 proven. 1 refuted. 0 times theorem prover too weak. 3416 trivial. 0 not checked. [2024-11-22 15:37:55,739 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 15:37:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 3601 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 3565 trivial. 0 not checked. [2024-11-22 15:37:56,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263608736] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 15:37:56,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 15:37:56,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-22 15:37:56,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030805124] [2024-11-22 15:37:56,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 15:37:56,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 15:37:56,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:37:56,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 15:37:56,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-22 15:37:56,737 INFO L87 Difference]: Start difference. First operand 1927 states and 2638 transitions. Second operand has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 states have internal predecessors, (232), 2 states have call successors, (140), 2 states have call predecessors, (140), 4 states have return successors, (140), 2 states have call predecessors, (140), 2 states have call successors, (140) [2024-11-22 15:37:57,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:37:57,061 INFO L93 Difference]: Finished difference Result 3847 states and 5279 transitions. [2024-11-22 15:37:57,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 15:37:57,063 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 states have internal predecessors, (232), 2 states have call successors, (140), 2 states have call predecessors, (140), 4 states have return successors, (140), 2 states have call predecessors, (140), 2 states have call successors, (140) Word has length 718 [2024-11-22 15:37:57,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:37:57,076 INFO L225 Difference]: With dead ends: 3847 [2024-11-22 15:37:57,077 INFO L226 Difference]: Without dead ends: 1939 [2024-11-22 15:37:57,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1444 GetRequests, 1431 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2024-11-22 15:37:57,085 INFO L432 NwaCegarLoop]: 521 mSDtfsCounter, 7 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:37:57,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2062 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:37:57,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2024-11-22 15:37:57,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1937. [2024-11-22 15:37:57,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1937 states, 1338 states have (on average 1.3206278026905829) internal successors, (1767), 1370 states have internal predecessors, (1767), 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) [2024-11-22 15:37:57,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 2650 transitions. [2024-11-22 15:37:57,199 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 2650 transitions. Word has length 718 [2024-11-22 15:37:57,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:37:57,200 INFO L471 AbstractCegarLoop]: Abstraction has 1937 states and 2650 transitions. [2024-11-22 15:37:57,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 states have internal predecessors, (232), 2 states have call successors, (140), 2 states have call predecessors, (140), 4 states have return successors, (140), 2 states have call predecessors, (140), 2 states have call successors, (140) [2024-11-22 15:37:57,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 2650 transitions. [2024-11-22 15:37:57,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2024-11-22 15:37:57,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:37:57,211 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 29, 29, 20, 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] [2024-11-22 15:37:57,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 15:37:57,414 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 [2024-11-22 15:37:57,415 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:37:57,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:37:57,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1632688797, now seen corresponding path program 2 times [2024-11-22 15:37:57,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:37:57,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311617935] [2024-11-22 15:37:57,416 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 15:37:57,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:37:58,029 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 15:37:58,029 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 15:37:59,409 INFO L134 CoverageAnalysis]: Checked inductivity of 3860 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 3730 trivial. 0 not checked. [2024-11-22 15:37:59,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:37:59,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311617935] [2024-11-22 15:37:59,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311617935] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:37:59,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095951629] [2024-11-22 15:37:59,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 15:37:59,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:37:59,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:37:59,414 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) [2024-11-22 15:37:59,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process