/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 05:51:49,434 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 05:51:49,524 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-01 05:51:49,532 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 05:51:49,533 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 05:51:49,570 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 05:51:49,571 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 05:51:49,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 05:51:49,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 05:51:49,574 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 05:51:49,575 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 05:51:49,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 05:51:49,576 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 05:51:49,576 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 05:51:49,576 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 05:51:49,577 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 05:51:49,579 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 05:51:49,581 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 05:51:49,582 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 05:51:49,582 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 05:51:49,582 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 05:51:49,583 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 05:51:49,583 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 05:51:49,583 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 05:51:49,583 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 05:51:49,584 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 05:51:49,584 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 05:51:49,584 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 05:51:49,584 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 05:51:49,585 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 05:51:49,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 05:51:49,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 05:51:49,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 05:51:49,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 05:51:49,587 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 05:51:49,588 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 05:51:49,588 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 05:51:49,588 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 05:51:49,588 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 05:51:49,588 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 05:51:49,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 05:51:49,590 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 05:51:49,590 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-01 05:51:49,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 05:51:49,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 05:51:49,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 05:51:49,969 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 05:51:49,970 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 05:51:49,971 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2024-11-01 05:51:51,547 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 05:51:52,017 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 05:51:52,018 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2024-11-01 05:51:52,067 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1c994c17/6af15fd2a5fc4ec2864f38ba3c26a0c2/FLAGc828db629 [2024-11-01 05:51:52,089 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1c994c17/6af15fd2a5fc4ec2864f38ba3c26a0c2 [2024-11-01 05:51:52,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 05:51:52,093 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 05:51:52,096 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 05:51:52,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 05:51:52,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 05:51:52,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 05:51:52" (1/1) ... [2024-11-01 05:51:52,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@659ab73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:51:52, skipping insertion in model container [2024-11-01 05:51:52,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 05:51:52" (1/1) ... [2024-11-01 05:51:52,263 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 05:51:53,098 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,414 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,473 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,476 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,482 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,491 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,509 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,509 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,510 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,511 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,548 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,548 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,550 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,553 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,554 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,555 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,560 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,561 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,586 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,594 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,595 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,597 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,613 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,616 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,616 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,618 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,630 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,647 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,660 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,689 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,693 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,698 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,699 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,701 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,701 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,714 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,716 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,766 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2024-11-01 05:51:53,784 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,785 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,815 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:53,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 05:51:53,910 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-01 05:51:53,966 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 05:51:54,106 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,123 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,136 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,138 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,141 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,143 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,146 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,146 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,147 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,147 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,150 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,151 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,151 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,153 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,153 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,154 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,155 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,156 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,159 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,162 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,162 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,163 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,167 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,168 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,169 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,170 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,173 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,177 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,179 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,184 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,187 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,188 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,188 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,189 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,190 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,191 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,191 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,197 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2024-11-01 05:51:54,199 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,200 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,205 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 05:51:54,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 05:51:54,226 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 05:51:54,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4831-4837] [2024-11-01 05:51:54,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [4844-4850] [2024-11-01 05:51:54,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "btr %2,%1\n\t" "sbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4857-4864] [2024-11-01 05:51:54,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "incl %0": "+m" (v->counter)); [4894-4900] [2024-11-01 05:51:54,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "decl %0": "+m" (v->counter)); [4907-4913] [2024-11-01 05:51:54,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n" ".pushsection __bug_table,\"a\"\n" "2:\t.long 1b - 2b, %c0 - 2b\n" "\t.word %c1, 0\n" "\t.org 2b+%c2\n" ".popsection": : "i" ("/anthill/stuff/tacas-comp/work/current--X--drivers/net/can/usb/ems_usb.ko--X--bulklinux-3.0.1--X--68_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/68_1/drivers/net/can/usb/ems_usb.c.common.c"), "i" (510), "i" (sizeof(struct bug_entry ))); [5717-5723] [2024-11-01 05:51:54,575 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2024-11-01 05:51:54,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 05:51:54,806 INFO L204 MainTranslator]: Completed translation [2024-11-01 05:51:54,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:51:54 WrapperNode [2024-11-01 05:51:54,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 05:51:54,808 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 05:51:54,808 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 05:51:54,808 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 05:51:54,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:51:54" (1/1) ... [2024-11-01 05:51:54,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:51:54" (1/1) ... [2024-11-01 05:51:54,978 INFO L138 Inliner]: procedures = 144, calls = 778, calls flagged for inlining = 54, calls inlined = 44, statements flattened = 1577 [2024-11-01 05:51:54,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 05:51:54,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 05:51:54,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 05:51:54,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 05:51:54,993 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:51:54" (1/1) ... [2024-11-01 05:51:54,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:51:54" (1/1) ... [2024-11-01 05:51:55,017 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:51:54" (1/1) ... [2024-11-01 05:51:55,236 INFO L175 MemorySlicer]: Split 342 memory accesses to 8 slices as follows [2, 8, 3, 10, 261, 42, 8, 8]. 76 percent of accesses are in the largest equivalence class. The 34 initializations are split as follows [2, 8, 0, 0, 8, 0, 8, 8]. The 214 writes are split as follows [0, 0, 0, 0, 172, 42, 0, 0]. [2024-11-01 05:51:55,238 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:51:54" (1/1) ... [2024-11-01 05:51:55,238 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:51:54" (1/1) ... [2024-11-01 05:51:55,303 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:51:54" (1/1) ... [2024-11-01 05:51:55,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:51:54" (1/1) ... [2024-11-01 05:51:55,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:51:54" (1/1) ... [2024-11-01 05:51:55,345 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:51:54" (1/1) ... [2024-11-01 05:51:55,374 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 05:51:55,376 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 05:51:55,376 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 05:51:55,376 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 05:51:55,377 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:51:54" (1/1) ... [2024-11-01 05:51:55,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 05:51:55,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 05:51:55,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-01 05:51:55,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-01 05:51:55,442 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-01 05:51:55,442 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-01 05:51:55,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-01 05:51:55,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-01 05:51:55,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-01 05:51:55,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-01 05:51:55,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-01 05:51:55,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-01 05:51:55,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-11-01 05:51:55,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2024-11-01 05:51:55,443 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_init [2024-11-01 05:51:55,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_init [2024-11-01 05:51:55,444 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2024-11-01 05:51:55,444 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2024-11-01 05:51:55,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-01 05:51:55,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-01 05:51:55,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-01 05:51:55,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-01 05:51:55,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-01 05:51:55,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#5 [2024-11-01 05:51:55,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#6 [2024-11-01 05:51:55,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#7 [2024-11-01 05:51:55,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-01 05:51:55,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-01 05:51:55,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-01 05:51:55,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-01 05:51:55,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-01 05:51:55,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-01 05:51:55,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-01 05:51:55,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-01 05:51:55,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-01 05:51:55,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-01 05:51:55,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-01 05:51:55,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-01 05:51:55,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-01 05:51:55,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-01 05:51:55,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-01 05:51:55,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-01 05:51:55,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-01 05:51:55,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-01 05:51:55,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-01 05:51:55,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-01 05:51:55,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-01 05:51:55,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-01 05:51:55,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-01 05:51:55,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-01 05:51:55,448 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-01 05:51:55,448 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-01 05:51:55,448 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2024-11-01 05:51:55,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2024-11-01 05:51:55,449 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-01 05:51:55,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-01 05:51:55,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-01 05:51:55,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-01 05:51:55,449 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_exit [2024-11-01 05:51:55,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_exit [2024-11-01 05:51:55,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-01 05:51:55,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-01 05:51:55,449 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-01 05:51:55,449 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-01 05:51:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-01 05:51:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-01 05:51:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2024-11-01 05:51:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2024-11-01 05:51:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2024-11-01 05:51:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2024-11-01 05:51:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-01 05:51:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-01 05:51:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-01 05:51:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-01 05:51:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-01 05:51:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-01 05:51:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#6 [2024-11-01 05:51:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#7 [2024-11-01 05:51:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-01 05:51:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-01 05:51:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#2 [2024-11-01 05:51:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#3 [2024-11-01 05:51:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#4 [2024-11-01 05:51:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#5 [2024-11-01 05:51:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#6 [2024-11-01 05:51:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#7 [2024-11-01 05:51:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-01 05:51:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-01 05:51:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2024-11-01 05:51:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2024-11-01 05:51:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#4 [2024-11-01 05:51:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#5 [2024-11-01 05:51:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#6 [2024-11-01 05:51:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#7 [2024-11-01 05:51:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#0 [2024-11-01 05:51:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#1 [2024-11-01 05:51:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#2 [2024-11-01 05:51:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#3 [2024-11-01 05:51:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#4 [2024-11-01 05:51:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#5 [2024-11-01 05:51:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#6 [2024-11-01 05:51:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#7 [2024-11-01 05:51:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2024-11-01 05:51:55,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2024-11-01 05:51:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-01 05:51:55,453 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-01 05:51:55,454 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2024-11-01 05:51:55,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2024-11-01 05:51:55,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-01 05:51:55,454 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2024-11-01 05:51:55,454 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2024-11-01 05:51:55,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 05:51:55,455 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-01 05:51:55,455 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-01 05:51:55,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-01 05:51:55,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-01 05:51:55,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-01 05:51:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-01 05:51:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-01 05:51:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-01 05:51:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-01 05:51:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-01 05:51:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-01 05:51:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#0 [2024-11-01 05:51:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#1 [2024-11-01 05:51:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#2 [2024-11-01 05:51:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#3 [2024-11-01 05:51:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#4 [2024-11-01 05:51:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#5 [2024-11-01 05:51:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#6 [2024-11-01 05:51:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#7 [2024-11-01 05:51:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2024-11-01 05:51:55,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2024-11-01 05:51:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#0 [2024-11-01 05:51:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#1 [2024-11-01 05:51:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#2 [2024-11-01 05:51:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#3 [2024-11-01 05:51:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#4 [2024-11-01 05:51:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#5 [2024-11-01 05:51:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#6 [2024-11-01 05:51:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#7 [2024-11-01 05:51:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#0 [2024-11-01 05:51:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#1 [2024-11-01 05:51:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#2 [2024-11-01 05:51:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#3 [2024-11-01 05:51:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#4 [2024-11-01 05:51:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#5 [2024-11-01 05:51:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#6 [2024-11-01 05:51:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#7 [2024-11-01 05:51:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-01 05:51:55,461 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-01 05:51:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-01 05:51:55,461 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-01 05:51:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-01 05:51:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-01 05:51:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-01 05:51:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-01 05:51:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-01 05:51:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-01 05:51:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-01 05:51:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-01 05:51:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-01 05:51:55,462 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-01 05:51:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-01 05:51:55,462 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-01 05:51:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-01 05:51:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-01 05:51:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-01 05:51:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-01 05:51:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-01 05:51:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2024-11-01 05:51:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2024-11-01 05:51:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#5 [2024-11-01 05:51:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#6 [2024-11-01 05:51:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#7 [2024-11-01 05:51:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-01 05:51:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-01 05:51:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-01 05:51:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-01 05:51:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-01 05:51:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-01 05:51:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-01 05:51:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2024-11-01 05:51:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2024-11-01 05:51:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2024-11-01 05:51:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-01 05:51:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-01 05:51:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-01 05:51:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-01 05:51:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-01 05:51:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-01 05:51:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-01 05:51:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-01 05:51:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-01 05:51:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-01 05:51:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-01 05:51:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 05:51:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-01 05:51:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-01 05:51:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-01 05:51:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-01 05:51:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-01 05:51:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-01 05:51:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-01 05:51:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-01 05:51:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-01 05:51:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-01 05:51:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-01 05:51:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-01 05:51:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-01 05:51:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-01 05:51:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-01 05:51:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-01 05:51:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-01 05:51:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-11-01 05:51:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-11-01 05:51:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-01 05:51:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-01 05:51:55,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2024-11-01 05:51:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2024-11-01 05:51:55,469 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-01 05:51:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-01 05:51:55,469 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-11-01 05:51:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-11-01 05:51:55,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#0 [2024-11-01 05:51:55,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#1 [2024-11-01 05:51:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#2 [2024-11-01 05:51:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#3 [2024-11-01 05:51:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#4 [2024-11-01 05:51:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#5 [2024-11-01 05:51:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#6 [2024-11-01 05:51:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#7 [2024-11-01 05:51:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-01 05:51:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-01 05:51:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2024-11-01 05:51:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2024-11-01 05:51:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 05:51:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 05:51:55,938 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 05:51:55,942 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 05:51:56,964 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2024-11-01 05:52:01,791 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-01 05:52:24,126 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2024-11-01 05:52:24,126 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2024-11-01 05:52:24,346 INFO L? ?]: Removed 599 outVars from TransFormulas that were not future-live. [2024-11-01 05:52:24,346 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 05:52:24,379 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 05:52:24,379 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-01 05:52:24,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 05:52:24 BoogieIcfgContainer [2024-11-01 05:52:24,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 05:52:24,384 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 05:52:24,384 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 05:52:24,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 05:52:24,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 05:51:52" (1/3) ... [2024-11-01 05:52:24,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4285bda1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 05:52:24, skipping insertion in model container [2024-11-01 05:52:24,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:51:54" (2/3) ... [2024-11-01 05:52:24,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4285bda1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 05:52:24, skipping insertion in model container [2024-11-01 05:52:24,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 05:52:24" (3/3) ... [2024-11-01 05:52:24,390 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2024-11-01 05:52:24,407 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 05:52:24,407 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 05:52:24,493 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 05:52:24,500 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6dcf11c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 05:52:24,500 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 05:52:24,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 482 states, 331 states have (on average 1.3232628398791542) internal successors, (438), 343 states have internal predecessors, (438), 112 states have call successors, (112), 38 states have call predecessors, (112), 37 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-01 05:52:24,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-01 05:52:24,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:52:24,515 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 05:52:24,515 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:52:24,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:52:24,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1986823710, now seen corresponding path program 1 times [2024-11-01 05:52:24,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:52:24,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [169634953] [2024-11-01 05:52:24,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:52:24,534 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 05:52:24,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 05:52:24,538 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 05:52:24,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-01 05:52:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 05:52:29,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 05:52:29,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 05:52:30,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:52:30,352 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 05:52:30,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:52:30,947 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 05:52:30,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [169634953] [2024-11-01 05:52:30,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [169634953] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 05:52:30,948 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 05:52:30,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-01 05:52:30,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32237848] [2024-11-01 05:52:30,950 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 05:52:30,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 05:52:30,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 05:52:30,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 05:52:30,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 05:52:30,978 INFO L87 Difference]: Start difference. First operand has 482 states, 331 states have (on average 1.3232628398791542) internal successors, (438), 343 states have internal predecessors, (438), 112 states have call successors, (112), 38 states have call predecessors, (112), 37 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-01 05:52:31,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 05:52:31,362 INFO L93 Difference]: Finished difference Result 1398 states and 1963 transitions. [2024-11-01 05:52:31,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 05:52:31,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 21 [2024-11-01 05:52:31,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 05:52:31,395 INFO L225 Difference]: With dead ends: 1398 [2024-11-01 05:52:31,396 INFO L226 Difference]: Without dead ends: 922 [2024-11-01 05:52:31,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 05:52:31,410 INFO L432 NwaCegarLoop]: 694 mSDtfsCounter, 603 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-01 05:52:31,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 1288 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-01 05:52:31,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2024-11-01 05:52:31,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 918. [2024-11-01 05:52:31,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 633 states have (on average 1.2369668246445498) internal successors, (783), 645 states have internal predecessors, (783), 213 states have call successors, (213), 72 states have call predecessors, (213), 71 states have return successors, (212), 205 states have call predecessors, (212), 209 states have call successors, (212) [2024-11-01 05:52:31,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1208 transitions. [2024-11-01 05:52:31,555 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1208 transitions. Word has length 21 [2024-11-01 05:52:31,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 05:52:31,555 INFO L471 AbstractCegarLoop]: Abstraction has 918 states and 1208 transitions. [2024-11-01 05:52:31,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-01 05:52:31,556 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1208 transitions. [2024-11-01 05:52:31,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-01 05:52:31,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:52:31,557 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 05:52:31,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-01 05:52:31,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 05:52:31,759 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:52:31,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:52:31,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1461749880, now seen corresponding path program 1 times [2024-11-01 05:52:31,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:52:31,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721121706] [2024-11-01 05:52:31,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:52:31,760 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 05:52:31,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 05:52:31,764 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 05:52:31,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-01 05:52:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 05:52:36,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 05:52:36,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 05:52:36,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:52:36,975 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 05:52:37,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:52:37,629 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 05:52:37,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721121706] [2024-11-01 05:52:37,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [721121706] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 05:52:37,630 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 05:52:37,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-01 05:52:37,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184594978] [2024-11-01 05:52:37,630 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 05:52:37,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 05:52:37,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 05:52:37,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 05:52:37,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 05:52:37,633 INFO L87 Difference]: Start difference. First operand 918 states and 1208 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-01 05:52:37,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 05:52:37,926 INFO L93 Difference]: Finished difference Result 2719 states and 3591 transitions. [2024-11-01 05:52:37,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 05:52:37,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2024-11-01 05:52:37,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 05:52:37,945 INFO L225 Difference]: With dead ends: 2719 [2024-11-01 05:52:37,945 INFO L226 Difference]: Without dead ends: 1809 [2024-11-01 05:52:37,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 05:52:37,951 INFO L432 NwaCegarLoop]: 633 mSDtfsCounter, 593 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-01 05:52:37,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 1225 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-01 05:52:37,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2024-11-01 05:52:38,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1802. [2024-11-01 05:52:38,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1243 states have (on average 1.2333065164923571) internal successors, (1533), 1262 states have internal predecessors, (1533), 418 states have call successors, (418), 141 states have call predecessors, (418), 140 states have return successors, (424), 406 states have call predecessors, (424), 414 states have call successors, (424) [2024-11-01 05:52:38,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 2375 transitions. [2024-11-01 05:52:38,087 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 2375 transitions. Word has length 22 [2024-11-01 05:52:38,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 05:52:38,088 INFO L471 AbstractCegarLoop]: Abstraction has 1802 states and 2375 transitions. [2024-11-01 05:52:38,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-01 05:52:38,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 2375 transitions. [2024-11-01 05:52:38,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-01 05:52:38,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:52:38,094 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 05:52:38,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-01 05:52:38,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 05:52:38,295 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:52:38,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:52:38,296 INFO L85 PathProgramCache]: Analyzing trace with hash -440434169, now seen corresponding path program 1 times [2024-11-01 05:52:38,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:52:38,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126301810] [2024-11-01 05:52:38,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:52:38,297 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 05:52:38,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 05:52:38,299 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 05:52:38,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-01 05:52:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 05:52:42,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 1372 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 05:52:42,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 05:52:42,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-01 05:52:42,796 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 05:52:44,368 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-01 05:52:44,368 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 05:52:44,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126301810] [2024-11-01 05:52:44,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2126301810] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 05:52:44,369 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 05:52:44,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-01 05:52:44,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511801440] [2024-11-01 05:52:44,369 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 05:52:44,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-01 05:52:44,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 05:52:44,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-01 05:52:44,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-01 05:52:44,372 INFO L87 Difference]: Start difference. First operand 1802 states and 2375 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-01 05:52:46,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 05:52:46,994 INFO L93 Difference]: Finished difference Result 5212 states and 7293 transitions. [2024-11-01 05:52:46,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 05:52:46,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 76 [2024-11-01 05:52:46,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 05:52:47,020 INFO L225 Difference]: With dead ends: 5212 [2024-11-01 05:52:47,020 INFO L226 Difference]: Without dead ends: 3425 [2024-11-01 05:52:47,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-01 05:52:47,030 INFO L432 NwaCegarLoop]: 726 mSDtfsCounter, 403 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1935 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-01 05:52:47,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 1935 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-01 05:52:47,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3425 states. [2024-11-01 05:52:47,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3425 to 3401. [2024-11-01 05:52:47,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3401 states, 2338 states have (on average 1.292557741659538) internal successors, (3022), 2389 states have internal predecessors, (3022), 922 states have call successors, (922), 141 states have call predecessors, (922), 140 states have return successors, (944), 894 states have call predecessors, (944), 918 states have call successors, (944) [2024-11-01 05:52:47,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3401 states to 3401 states and 4888 transitions. [2024-11-01 05:52:47,225 INFO L78 Accepts]: Start accepts. Automaton has 3401 states and 4888 transitions. Word has length 76 [2024-11-01 05:52:47,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 05:52:47,226 INFO L471 AbstractCegarLoop]: Abstraction has 3401 states and 4888 transitions. [2024-11-01 05:52:47,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-01 05:52:47,228 INFO L276 IsEmpty]: Start isEmpty. Operand 3401 states and 4888 transitions. [2024-11-01 05:52:47,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-01 05:52:47,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:52:47,235 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 05:52:47,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-01 05:52:47,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 05:52:47,435 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:52:47,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:52:47,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1281989802, now seen corresponding path program 1 times [2024-11-01 05:52:47,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:52:47,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590804048] [2024-11-01 05:52:47,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:52:47,437 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 05:52:47,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 05:52:47,440 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 05:52:47,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-01 05:52:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 05:52:52,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 1384 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-01 05:52:52,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 05:52:52,711 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:52:52,711 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 05:52:54,187 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:52:54,187 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 05:52:54,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590804048] [2024-11-01 05:52:54,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1590804048] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 05:52:54,188 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 05:52:54,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 05:52:54,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646898330] [2024-11-01 05:52:54,188 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 05:52:54,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 05:52:54,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 05:52:54,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 05:52:54,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 05:52:54,190 INFO L87 Difference]: Start difference. First operand 3401 states and 4888 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-01 05:52:54,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 05:52:54,828 INFO L93 Difference]: Finished difference Result 6810 states and 9793 transitions. [2024-11-01 05:52:54,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 05:52:54,828 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 78 [2024-11-01 05:52:54,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 05:52:54,859 INFO L225 Difference]: With dead ends: 6810 [2024-11-01 05:52:54,860 INFO L226 Difference]: Without dead ends: 3425 [2024-11-01 05:52:54,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 05:52:54,882 INFO L432 NwaCegarLoop]: 614 mSDtfsCounter, 0 mSDsluCounter, 2440 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-01 05:52:54,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3054 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-01 05:52:54,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3425 states. [2024-11-01 05:52:55,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3425 to 3425. [2024-11-01 05:52:55,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3425 states, 2362 states have (on average 1.2895850973751057) internal successors, (3046), 2413 states have internal predecessors, (3046), 922 states have call successors, (922), 141 states have call predecessors, (922), 140 states have return successors, (944), 894 states have call predecessors, (944), 918 states have call successors, (944) [2024-11-01 05:52:55,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3425 states to 3425 states and 4912 transitions. [2024-11-01 05:52:55,096 INFO L78 Accepts]: Start accepts. Automaton has 3425 states and 4912 transitions. Word has length 78 [2024-11-01 05:52:55,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 05:52:55,099 INFO L471 AbstractCegarLoop]: Abstraction has 3425 states and 4912 transitions. [2024-11-01 05:52:55,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-01 05:52:55,100 INFO L276 IsEmpty]: Start isEmpty. Operand 3425 states and 4912 transitions. [2024-11-01 05:52:55,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-01 05:52:55,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:52:55,103 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 05:52:55,142 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-01 05:52:55,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 05:52:55,309 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:52:55,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:52:55,310 INFO L85 PathProgramCache]: Analyzing trace with hash -21628062, now seen corresponding path program 1 times [2024-11-01 05:52:55,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:52:55,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547289987] [2024-11-01 05:52:55,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:52:55,310 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 05:52:55,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 05:52:55,314 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 05:52:55,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-01 05:53:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 05:53:00,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-01 05:53:00,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 05:53:02,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:53:02,284 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 05:53:06,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:53:06,636 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 05:53:06,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1547289987] [2024-11-01 05:53:06,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1547289987] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 05:53:06,637 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 05:53:06,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2024-11-01 05:53:06,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338897630] [2024-11-01 05:53:06,637 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 05:53:06,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-01 05:53:06,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 05:53:06,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-01 05:53:06,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-01 05:53:06,643 INFO L87 Difference]: Start difference. First operand 3425 states and 4912 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-01 05:53:07,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 05:53:07,357 INFO L93 Difference]: Finished difference Result 5167 states and 7443 transitions. [2024-11-01 05:53:07,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-01 05:53:07,359 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79 [2024-11-01 05:53:07,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 05:53:07,390 INFO L225 Difference]: With dead ends: 5167 [2024-11-01 05:53:07,391 INFO L226 Difference]: Without dead ends: 3453 [2024-11-01 05:53:07,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-01 05:53:07,407 INFO L432 NwaCegarLoop]: 614 mSDtfsCounter, 0 mSDsluCounter, 3066 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-01 05:53:07,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3680 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-01 05:53:07,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3453 states. [2024-11-01 05:53:07,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3453 to 3453. [2024-11-01 05:53:07,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3453 states, 2382 states have (on average 1.2871536523929472) internal successors, (3066), 2433 states have internal predecessors, (3066), 922 states have call successors, (922), 141 states have call predecessors, (922), 148 states have return successors, (968), 902 states have call predecessors, (968), 918 states have call successors, (968) [2024-11-01 05:53:07,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3453 states to 3453 states and 4956 transitions. [2024-11-01 05:53:07,605 INFO L78 Accepts]: Start accepts. Automaton has 3453 states and 4956 transitions. Word has length 79 [2024-11-01 05:53:07,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 05:53:07,607 INFO L471 AbstractCegarLoop]: Abstraction has 3453 states and 4956 transitions. [2024-11-01 05:53:07,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-01 05:53:07,607 INFO L276 IsEmpty]: Start isEmpty. Operand 3453 states and 4956 transitions. [2024-11-01 05:53:07,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-01 05:53:07,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:53:07,611 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 05:53:07,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-01 05:53:07,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 05:53:07,812 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:53:07,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:53:07,813 INFO L85 PathProgramCache]: Analyzing trace with hash 308137699, now seen corresponding path program 1 times [2024-11-01 05:53:07,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:53:07,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567570020] [2024-11-01 05:53:07,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:53:07,813 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 05:53:07,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 05:53:07,816 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 05:53:07,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-01 05:53:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 05:53:11,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-01 05:53:11,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 05:53:14,090 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:53:14,090 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 05:53:16,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:53:16,644 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 05:53:16,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567570020] [2024-11-01 05:53:16,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [567570020] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 05:53:16,644 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 05:53:16,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2024-11-01 05:53:16,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475672367] [2024-11-01 05:53:16,644 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 05:53:16,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-01 05:53:16,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 05:53:16,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-01 05:53:16,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-01 05:53:16,646 INFO L87 Difference]: Start difference. First operand 3453 states and 4956 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-01 05:53:19,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 05:53:19,136 INFO L93 Difference]: Finished difference Result 7242 states and 10474 transitions. [2024-11-01 05:53:19,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-01 05:53:19,138 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79 [2024-11-01 05:53:19,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 05:53:19,175 INFO L225 Difference]: With dead ends: 7242 [2024-11-01 05:53:19,176 INFO L226 Difference]: Without dead ends: 3805 [2024-11-01 05:53:19,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-01 05:53:19,195 INFO L432 NwaCegarLoop]: 709 mSDtfsCounter, 49 mSDsluCounter, 5580 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 6289 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-01 05:53:19,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 6289 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-01 05:53:19,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3805 states. [2024-11-01 05:53:19,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3805 to 3465. [2024-11-01 05:53:19,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3465 states, 2392 states have (on average 1.2842809364548495) internal successors, (3072), 2441 states have internal predecessors, (3072), 922 states have call successors, (922), 141 states have call predecessors, (922), 150 states have return successors, (982), 906 states have call predecessors, (982), 918 states have call successors, (982) [2024-11-01 05:53:19,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 4976 transitions. [2024-11-01 05:53:19,415 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 4976 transitions. Word has length 79 [2024-11-01 05:53:19,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 05:53:19,416 INFO L471 AbstractCegarLoop]: Abstraction has 3465 states and 4976 transitions. [2024-11-01 05:53:19,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-01 05:53:19,416 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 4976 transitions. [2024-11-01 05:53:19,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-01 05:53:19,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:53:19,420 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 05:53:19,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-01 05:53:19,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 05:53:19,621 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:53:19,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:53:19,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1896190302, now seen corresponding path program 1 times [2024-11-01 05:53:19,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:53:19,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332139658] [2024-11-01 05:53:19,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:53:19,622 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 05:53:19,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 05:53:19,624 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 05:53:19,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process