./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 7bc0c755 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.dk.goblint-validation-atomicfix-7bc0c75-m [2024-08-23 09:32:28,793 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-23 09:32:28,862 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-23 09:32:28,867 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-23 09:32:28,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-23 09:32:28,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-23 09:32:28,901 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-23 09:32:28,902 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-23 09:32:28,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-23 09:32:28,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-23 09:32:28,904 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-23 09:32:28,904 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-23 09:32:28,905 INFO L153 SettingsManager]: * Use SBE=true [2024-08-23 09:32:28,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-23 09:32:28,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-23 09:32:28,906 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-23 09:32:28,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-23 09:32:28,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-23 09:32:28,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-23 09:32:28,907 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-23 09:32:28,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-23 09:32:28,908 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-23 09:32:28,909 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-23 09:32:28,909 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-23 09:32:28,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-23 09:32:28,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-23 09:32:28,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-23 09:32:28,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-23 09:32:28,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-23 09:32:28,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-23 09:32:28,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 09:32:28,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-23 09:32:28,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-23 09:32:28,913 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-23 09:32:28,913 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-23 09:32:28,913 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-23 09:32:28,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-23 09:32:28,914 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-23 09:32:28,914 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-23 09:32:28,914 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-23 09:32:28,914 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-23 09:32:28,916 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-23 09:32:28,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-08-23 09:32:29,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-23 09:32:29,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-23 09:32:29,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-23 09:32:29,213 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-23 09:32:29,214 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-23 09:32:29,216 INFO L431 ainManager$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 [2024-08-23 09:32:29,447 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-23 09:32:29,448 INFO L274 PluginConnector]: CDTParser initialized [2024-08-23 09:32:29,448 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-08-23 09:32:30,829 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-23 09:32:31,309 INFO L384 CDTParser]: Found 1 translation units. [2024-08-23 09:32:31,313 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-08-23 09:32:31,347 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3a59555f7/4122b5ceef414b8e81e6c6e96d477e9f/FLAG80a7615a3 [2024-08-23 09:32:31,361 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3a59555f7/4122b5ceef414b8e81e6c6e96d477e9f [2024-08-23 09:32:31,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-23 09:32:31,364 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-23 09:32:31,365 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-23 09:32:31,365 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-23 09:32:31,371 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-23 09:32:31,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 09:32:29" (1/2) ... [2024-08-23 09:32:31,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eeb8963 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 09:32:31, skipping insertion in model container [2024-08-23 09:32:31,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 09:32:29" (1/2) ... [2024-08-23 09:32:31,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1ce5fb2f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 09:32:31, skipping insertion in model container [2024-08-23 09:32:31,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 09:32:31" (2/2) ... [2024-08-23 09:32:31,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eeb8963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:32:31, skipping insertion in model container [2024-08-23 09:32:31,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 09:32:31" (2/2) ... [2024-08-23 09:32:31,375 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-23 09:32:31,950 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-23 09:32:31,951 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) [2024-08-23 09:32:31,951 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) [2024-08-23 09:32:31,951 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) [2024-08-23 09:32:31,952 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) [2024-08-23 09:32:31,952 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) [2024-08-23 09:32:32,044 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-23 09:32:33,539 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 09:32:33,579 INFO L202 MainTranslator]: Completed pre-run [2024-08-23 09:32:33,672 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] [2024-08-23 09:32:33,676 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3662] [2024-08-23 09:32:33,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3665] [2024-08-23 09:32:33,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3668] [2024-08-23 09:32:33,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3671] [2024-08-23 09:32:33,773 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] [2024-08-23 09:32:33,774 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] [2024-08-23 09:32:33,774 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] [2024-08-23 09:32:33,777 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] [2024-08-23 09:32:33,778 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] [2024-08-23 09:32:33,779 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] [2024-08-23 09:32:33,780 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] [2024-08-23 09:32:33,780 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] [2024-08-23 09:32:33,795 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] [2024-08-23 09:32:33,796 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] [2024-08-23 09:32:33,797 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] [2024-08-23 09:32:33,797 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] [2024-08-23 09:32:33,799 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] [2024-08-23 09:32:33,799 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] [2024-08-23 09:32:33,800 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] [2024-08-23 09:32:33,800 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] [2024-08-23 09:32:33,804 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] [2024-08-23 09:32:33,805 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] [2024-08-23 09:32:33,805 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] [2024-08-23 09:32:33,805 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 [2024-08-23 09:32:33,953 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 09:32:34,082 INFO L206 MainTranslator]: Completed translation [2024-08-23 09:32:34,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:32:34 WrapperNode [2024-08-23 09:32:34,083 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-23 09:32:34,085 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-23 09:32:34,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-23 09:32:34,085 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-23 09:32:34,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:32:34" (1/1) ... [2024-08-23 09:32:34,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:32:34" (1/1) ... [2024-08-23 09:32:34,430 INFO L138 Inliner]: procedures = 287, calls = 1743, calls flagged for inlining = 462, calls inlined = 522, statements flattened = 6512 [2024-08-23 09:32:34,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-23 09:32:34,433 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-23 09:32:34,433 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-23 09:32:34,433 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-23 09:32:34,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:32:34" (1/1) ... [2024-08-23 09:32:34,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:32:34" (1/1) ... [2024-08-23 09:32:34,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:32:34" (1/1) ... [2024-08-23 09:32:34,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:32:34" (1/1) ... [2024-08-23 09:32:34,678 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:32:34" (1/1) ... [2024-08-23 09:32:34,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:32:34" (1/1) ... [2024-08-23 09:32:34,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:32:34" (1/1) ... [2024-08-23 09:32:34,757 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:32:34" (1/1) ... [2024-08-23 09:32:34,789 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-23 09:32:34,791 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-23 09:32:34,791 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-23 09:32:34,791 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-23 09:32:34,792 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:32:34" (1/1) ... [2024-08-23 09:32:34,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 09:32:34,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:32:34,827 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) [2024-08-23 09:32:34,829 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 [2024-08-23 09:32:34,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_insmod_4 [2024-08-23 09:32:34,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_insmod_4 [2024-08-23 09:32:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-23 09:32:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_scenario_3 [2024-08-23 09:32:34,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_scenario_3 [2024-08-23 09:32:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-08-23 09:32:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-23 09:32:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-08-23 09:32:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-08-23 09:32:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-23 09:32:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-23 09:32:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-08-23 09:32:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-23 09:32:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-23 09:32:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-08-23 09:32:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_character_driver_scenario_2 [2024-08-23 09:32:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_character_driver_scenario_2 [2024-08-23 09:32:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-23 09:32:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-23 09:32:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-23 09:32:34,873 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-23 09:32:35,357 INFO L243 CfgBuilder]: Building ICFG [2024-08-23 09:32:35,360 INFO L269 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-23 09:32:40,483 INFO L288 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-23 09:32:40,484 INFO L292 CfgBuilder]: Performing block encoding [2024-08-23 09:32:47,456 INFO L314 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-23 09:32:47,457 INFO L319 CfgBuilder]: Removed 58 assume(true) statements. [2024-08-23 09:32:47,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 09:32:47 BoogieIcfgContainer [2024-08-23 09:32:47,458 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-23 09:32:47,461 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-23 09:32:47,462 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-23 09:32:47,465 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-23 09:32:47,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 09:32:29" (1/4) ... [2024-08-23 09:32:47,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efccb6c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 09:32:47, skipping insertion in model container [2024-08-23 09:32:47,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.08 09:32:31" (2/4) ... [2024-08-23 09:32:47,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efccb6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 09:32:47, skipping insertion in model container [2024-08-23 09:32:47,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:32:34" (3/4) ... [2024-08-23 09:32:47,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efccb6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 09:32:47, skipping insertion in model container [2024-08-23 09:32:47,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 09:32:47" (4/4) ... [2024-08-23 09:32:47,469 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-08-23 09:32:47,488 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-23 09:32:47,488 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-08-23 09:32:47,489 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-23 09:32:48,291 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-08-23 09:32:48,352 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 09:32:48,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 09:32:48,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:32:48,354 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) [2024-08-23 09:32:48,647 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 [2024-08-23 09:32:48,719 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 09:32:48,735 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ldv_character_driver_scenario_2Thread1of1ForFork1 ======== [2024-08-23 09:32:48,742 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;@72be6d57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 09:32:48,743 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-08-23 09:32:50,734 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)] === [2024-08-23 09:32:50,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:32:50,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1211687622, now seen corresponding path program 1 times [2024-08-23 09:32:50,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:32:50,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583493060] [2024-08-23 09:32:50,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:32:50,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:32:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:32:52,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 09:32:52,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:32:52,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583493060] [2024-08-23 09:32:52,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583493060] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 09:32:52,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 09:32:52,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 09:32:52,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295033820] [2024-08-23 09:32:52,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 09:32:52,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 09:32:52,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:32:52,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 09:32:52,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 09:32:52,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:32:52,114 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:32:52,115 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) [2024-08-23 09:32:52,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:32:52,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:32:52,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-23 09:32:52,407 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)] === [2024-08-23 09:32:52,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:32:52,408 INFO L85 PathProgramCache]: Analyzing trace with hash 242515122, now seen corresponding path program 1 times [2024-08-23 09:32:52,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:32:52,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767174812] [2024-08-23 09:32:52,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:32:52,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:32:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:32:55,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 09:32:55,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:32:55,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767174812] [2024-08-23 09:32:55,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767174812] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 09:32:55,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 09:32:55,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-08-23 09:32:55,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775054667] [2024-08-23 09:32:55,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 09:32:55,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-23 09:32:55,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:32:55,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-23 09:32:55,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-23 09:32:55,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:32:55,337 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:32:55,337 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) [2024-08-23 09:32:55,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:32:55,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:32:58,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-08-23 09:33:00,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-08-23 09:33:02,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-08-23 09:33:04,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-08-23 09:33:23,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-08-23 09:37:57,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-08-23 09:41:25,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-08-23 09:41:27,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-08-23 09:41:29,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15