./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-08-08_07-59-58.files/mutex-meet-local/linux-3.14--drivers--usb--misc--adutux.ko.cil.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c091e2ee Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i ./goblint.2024-08-08_07-59-58.files/mutex-meet-local/linux-3.14--drivers--usb--misc--adutux.ko.cil.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-c091e2e-m [2024-08-14 02:27:44,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 02:27:44,409 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-14 02:27:44,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 02:27:44,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 02:27:44,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 02:27:44,441 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 02:27:44,441 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 02:27:44,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 02:27:44,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 02:27:44,444 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 02:27:44,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 02:27:44,444 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 02:27:44,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 02:27:44,445 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 02:27:44,447 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 02:27:44,447 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 02:27:44,447 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 02:27:44,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 02:27:44,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 02:27:44,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 02:27:44,451 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 02:27:44,451 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 02:27:44,451 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 02:27:44,451 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 02:27:44,451 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 02:27:44,452 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 02:27:44,452 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 02:27:44,452 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 02:27:44,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 02:27:44,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-14 02:27:44,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 02:27:44,453 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 02:27:44,453 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 02:27:44,453 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 02:27:44,454 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-14 02:27:44,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 02:27:44,454 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 02:27:44,455 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-14 02:27:44,455 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 02:27:44,455 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-14 02:27:44,456 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-14 02:27:44,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-08-14 02:27:44,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 02:27:44,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 02:27:44,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 02:27:44,731 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 02:27:44,731 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 02:27:44,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-08-14 02:27:46,178 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 02:27:46,574 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 02:27:46,574 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-08-14 02:27:46,616 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2530433f0/7e31097821804064a48acf3c61390214/FLAGc431e33fd [2024-08-14 02:27:46,631 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2530433f0/7e31097821804064a48acf3c61390214 [2024-08-14 02:27:46,634 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 02:27:46,635 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 02:27:46,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-local/linux-3.14--drivers--usb--misc--adutux.ko.cil.yml/witness.yml [2024-08-14 02:27:46,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 02:27:46,785 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-14 02:27:46,786 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 02:27:46,786 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 02:27:46,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 02:27:46,791 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:27:46" (1/2) ... [2024-08-14 02:27:46,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e100a66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:27:46, skipping insertion in model container [2024-08-14 02:27:46,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:27:46" (1/2) ... [2024-08-14 02:27:46,793 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7fa774ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:27:46, skipping insertion in model container [2024-08-14 02:27:46,793 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.08 02:27:46" (2/2) ... [2024-08-14 02:27:46,793 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e100a66 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 02:27:46, skipping insertion in model container [2024-08-14 02:27:46,793 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.08 02:27:46" (2/2) ... [2024-08-14 02:27:46,793 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-14 02:27:47,272 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-14 02:27:47,273 INFO L97 edCorrectnessWitness]: Location invariant before [L6889-L6889] (((((((((((((unsigned char )__mod_usb_device_table.bDeviceClass == (unsigned char)0) && ((unsigned char )__mod_usb_device_table.bDeviceProtocol == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bDeviceSubClass == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceClass == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceNumber == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceProtocol == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceSubClass == (unsigned char)0)) && ((unsigned short )__mod_usb_device_table.bcdDevice_hi == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.bcdDevice_lo == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.idProduct == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.idVendor == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.match_flags == (unsigned short)0)) && ((unsigned long )__mod_usb_device_table.driver_info == 0UL) [2024-08-14 02:27:47,273 INFO L97 edCorrectnessWitness]: Location invariant before [L6903-L6903] (((((((((((((unsigned char )__mod_usb_device_table.bDeviceClass == (unsigned char)0) && ((unsigned char )__mod_usb_device_table.bDeviceProtocol == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bDeviceSubClass == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceClass == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceNumber == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceProtocol == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceSubClass == (unsigned char)0)) && ((unsigned short )__mod_usb_device_table.bcdDevice_hi == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.bcdDevice_lo == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.idProduct == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.idVendor == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.match_flags == (unsigned short)0)) && ((unsigned long )__mod_usb_device_table.driver_info == 0UL) [2024-08-14 02:27:47,273 INFO L97 edCorrectnessWitness]: Location invariant before [L7125-L7125] (((((((((((((unsigned char )__mod_usb_device_table.bDeviceClass == (unsigned char)0) && ((unsigned char )__mod_usb_device_table.bDeviceProtocol == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bDeviceSubClass == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceClass == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceNumber == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceProtocol == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceSubClass == (unsigned char)0)) && ((unsigned short )__mod_usb_device_table.bcdDevice_hi == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.bcdDevice_lo == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.idProduct == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.idVendor == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.match_flags == (unsigned short)0)) && ((unsigned long )__mod_usb_device_table.driver_info == 0UL) [2024-08-14 02:27:47,274 INFO L97 edCorrectnessWitness]: Location invariant before [L7111-L7111] (((((((((((((unsigned char )__mod_usb_device_table.bDeviceClass == (unsigned char)0) && ((unsigned char )__mod_usb_device_table.bDeviceProtocol == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bDeviceSubClass == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceClass == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceNumber == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceProtocol == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceSubClass == (unsigned char)0)) && ((unsigned short )__mod_usb_device_table.bcdDevice_hi == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.bcdDevice_lo == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.idProduct == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.idVendor == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.match_flags == (unsigned short)0)) && ((unsigned long )__mod_usb_device_table.driver_info == 0UL) [2024-08-14 02:27:47,274 INFO L97 edCorrectnessWitness]: Location invariant before [L7374-L7374] (((((((((((((unsigned char )__mod_usb_device_table.bDeviceClass == (unsigned char)0) && ((unsigned char )__mod_usb_device_table.bDeviceProtocol == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bDeviceSubClass == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceClass == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceNumber == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceProtocol == (unsigned char)0)) && ((unsigned char )__mod_usb_device_table.bInterfaceSubClass == (unsigned char)0)) && ((unsigned short )__mod_usb_device_table.bcdDevice_hi == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.bcdDevice_lo == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.idProduct == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.idVendor == (unsigned short)0)) && ((unsigned short )__mod_usb_device_table.match_flags == (unsigned short)0)) && ((unsigned long )__mod_usb_device_table.driver_info == 0UL) [2024-08-14 02:27:47,358 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-14 02:27:48,539 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 02:27:48,588 INFO L202 MainTranslator]: Completed pre-run [2024-08-14 02:27:48,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [3628-3629] [2024-08-14 02:27:48,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3662] [2024-08-14 02:27:48,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3665] [2024-08-14 02:27:48,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3668] [2024-08-14 02:27:48,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3671] [2024-08-14 02:27:48,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___12->state): : "memory", "cc"); [4769-4770] [2024-08-14 02:27:48,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___13->state): : "memory", "cc"); [4776-4777] [2024-08-14 02:27:48,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___14->state): : "memory", "cc"); [4783-4784] [2024-08-14 02:27:48,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___15->state): : "memory", "cc"); [4790-4791] [2024-08-14 02:27:48,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___17->state): : "memory", "cc"); [4837-4838] [2024-08-14 02:27:48,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___18->state): : "memory", "cc"); [4844-4845] [2024-08-14 02:27:48,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___19->state): : "memory", "cc"); [4851-4852] [2024-08-14 02:27:48,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___20->state): : "memory", "cc"); [4858-4859] [2024-08-14 02:27:48,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___1->state): : "memory", "cc"); [5071-5072] [2024-08-14 02:27:48,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [5078-5079] [2024-08-14 02:27:48,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [5085-5086] [2024-08-14 02:27:48,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [5092-5093] [2024-08-14 02:27:48,819 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___6->state): : "memory", "cc"); [5152-5153] [2024-08-14 02:27:48,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___7->state): : "memory", "cc"); [5159-5160] [2024-08-14 02:27:48,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___8->state): : "memory", "cc"); [5166-5167] [2024-08-14 02:27:48,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___9->state): : "memory", "cc"); [5173-5174] [2024-08-14 02:27:48,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___1), "+m" (tmp___15->state): : "memory", "cc"); [5263-5264] [2024-08-14 02:27:48,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___1), "+m" (tmp___16->state): : "memory", "cc"); [5270-5271] [2024-08-14 02:27:48,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___1), "+m" (tmp___17->state): : "memory", "cc"); [5277-5278] [2024-08-14 02:27:48,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___1), "+m" (tmp___18->state): : "memory", "cc"); [5284-5285] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-14 02:27:48,985 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 02:27:49,061 INFO L206 MainTranslator]: Completed translation [2024-08-14 02:27:49,062 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 02:27:49 WrapperNode [2024-08-14 02:27:49,063 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 02:27:49,064 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-14 02:27:49,064 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-14 02:27:49,065 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-14 02:27:49,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 02:27:49" (1/1) ... [2024-08-14 02:27:49,163 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 02:27:49" (1/1) ... [2024-08-14 02:27:49,457 INFO L138 Inliner]: procedures = 287, calls = 1743, calls flagged for inlining = 462, calls inlined = 522, statements flattened = 6512 [2024-08-14 02:27:49,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-14 02:27:49,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 02:27:49,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 02:27:49,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 02:27:49,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 02:27:49" (1/1) ... [2024-08-14 02:27:49,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 02:27:49" (1/1) ... [2024-08-14 02:27:49,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 02:27:49" (1/1) ... [2024-08-14 02:27:49,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 02:27:49" (1/1) ... [2024-08-14 02:27:49,650 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 02:27:49" (1/1) ... [2024-08-14 02:27:49,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 02:27:49" (1/1) ... [2024-08-14 02:27:49,715 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 02:27:49" (1/1) ... [2024-08-14 02:27:49,738 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 02:27:49" (1/1) ... [2024-08-14 02:27:49,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 02:27:49,782 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-14 02:27:49,783 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-14 02:27:49,783 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-14 02:27:49,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 02:27:49" (1/1) ... [2024-08-14 02:27:49,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-14 02:27:49,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 02:27:49,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-08-14 02:27:49,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-08-14 02:27:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_insmod_4 [2024-08-14 02:27:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_insmod_4 [2024-08-14 02:27:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-14 02:27:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_scenario_3 [2024-08-14 02:27:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_scenario_3 [2024-08-14 02:27:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-08-14 02:27:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 02:27:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-08-14 02:27:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-08-14 02:27:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-14 02:27:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-14 02:27:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-08-14 02:27:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-14 02:27:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 02:27:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-08-14 02:27:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_character_driver_scenario_2 [2024-08-14 02:27:49,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_character_driver_scenario_2 [2024-08-14 02:27:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-14 02:27:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 02:27:49,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 02:27:49,869 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-08-14 02:27:50,427 INFO L244 CfgBuilder]: Building ICFG [2024-08-14 02:27:50,430 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 02:27:54,998 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-08-14 02:27:54,999 INFO L293 CfgBuilder]: Performing block encoding [2024-08-14 02:28:00,363 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 02:28:00,363 INFO L320 CfgBuilder]: Removed 58 assume(true) statements. [2024-08-14 02:28:00,364 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 02:28:00 BoogieIcfgContainer [2024-08-14 02:28:00,364 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-14 02:28:00,366 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 02:28:00,366 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 02:28:00,368 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 02:28:00,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:27:46" (1/4) ... [2024-08-14 02:28:00,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ef9c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:28:00, skipping insertion in model container [2024-08-14 02:28:00,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.08 02:27:46" (2/4) ... [2024-08-14 02:28:00,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ef9c6e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.08 02:28:00, skipping insertion in model container [2024-08-14 02:28:00,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 02:27:49" (3/4) ... [2024-08-14 02:28:00,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ef9c6e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.08 02:28:00, skipping insertion in model container [2024-08-14 02:28:00,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 02:28:00" (4/4) ... [2024-08-14 02:28:00,370 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-08-14 02:28:00,541 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 02:28:00,542 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-08-14 02:28:00,542 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-14 02:28:01,378 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-08-14 02:28:01,461 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 02:28:01,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-14 02:28:01,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 02:28:01,470 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-14 02:28:01,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-08-14 02:28:01,576 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-14 02:28:01,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ldv_character_driver_scenario_2Thread1of1ForFork1 ======== [2024-08-14 02:28:01,615 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@26f5b9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 02:28:01,619 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-08-14 02:28:03,297 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, ldv_character_driver_scenario_2Err1ASSERT_VIOLATIONUNKNOWN (and 38 more)] === [2024-08-14 02:28:03,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 02:28:03,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1211687622, now seen corresponding path program 1 times [2024-08-14 02:28:03,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 02:28:03,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158308988] [2024-08-14 02:28:03,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 02:28:03,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 02:28:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 02:28:05,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 02:28:05,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 02:28:05,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158308988] [2024-08-14 02:28:05,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158308988] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 02:28:05,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 02:28:05,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-14 02:28:05,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471508987] [2024-08-14 02:28:05,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 02:28:05,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-14 02:28:05,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 02:28:05,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-14 02:28:05,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-14 02:28:05,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 02:28:05,070 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 02:28:05,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 02:28:05,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 02:28:05,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 02:28:05,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 02:28:05,305 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, ldv_character_driver_scenario_2Err1ASSERT_VIOLATIONUNKNOWN (and 38 more)] === [2024-08-14 02:28:05,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 02:28:05,307 INFO L85 PathProgramCache]: Analyzing trace with hash 242515122, now seen corresponding path program 1 times [2024-08-14 02:28:05,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 02:28:05,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999861678] [2024-08-14 02:28:05,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 02:28:05,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 02:28:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 02:28:07,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 02:28:07,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 02:28:07,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999861678] [2024-08-14 02:28:07,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999861678] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 02:28:07,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 02:28:07,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-08-14 02:28:07,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678527556] [2024-08-14 02:28:07,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 02:28:07,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 02:28:07,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 02:28:07,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 02:28:07,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 02:28:07,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 02:28:07,299 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 02:28:07,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 02:28:07,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 02:28:07,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 02:28:10,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-08-14 02:28:12,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-08-14 02:28:14,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-08-14 02:28:16,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-08-14 02:28:34,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-08-14 02:36:41,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15