/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -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-b75d321-m [2024-11-04 11:40:06,964 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-04 11:40:07,029 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-04 11:40:07,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-04 11:40:07,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-04 11:40:07,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-04 11:40:07,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-04 11:40:07,061 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-04 11:40:07,061 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-04 11:40:07,062 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-04 11:40:07,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-04 11:40:07,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-04 11:40:07,063 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-04 11:40:07,063 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-04 11:40:07,064 INFO L153 SettingsManager]: * Use SBE=true [2024-11-04 11:40:07,065 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-04 11:40:07,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-04 11:40:07,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-04 11:40:07,065 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-04 11:40:07,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-04 11:40:07,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-04 11:40:07,068 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-04 11:40:07,069 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-04 11:40:07,069 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-04 11:40:07,069 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-04 11:40:07,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-04 11:40:07,069 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-04 11:40:07,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-04 11:40:07,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-04 11:40:07,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-04 11:40:07,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-04 11:40:07,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 11:40:07,070 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-04 11:40:07,070 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-04 11:40:07,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-04 11:40:07,071 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-04 11:40:07,071 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-04 11:40:07,072 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-04 11:40:07,072 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-04 11:40:07,072 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-04 11:40:07,072 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-04 11:40:07,073 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 11:40:07,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-04 11:40:07,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-04 11:40:07,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-04 11:40:07,316 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-04 11:40:07,317 INFO L274 PluginConnector]: CDTParser initialized [2024-11-04 11:40:07,318 INFO L431 ainManager$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 [2024-11-04 11:40:08,506 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-04 11:40:08,835 INFO L384 CDTParser]: Found 1 translation units. [2024-11-04 11:40:08,835 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 [2024-11-04 11:40:08,868 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/291738b96/20563425609a4a8589c2d6f3231a41a9/FLAG13e4478b6 [2024-11-04 11:40:08,882 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/291738b96/20563425609a4a8589c2d6f3231a41a9 [2024-11-04 11:40:08,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-04 11:40:08,885 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-04 11:40:08,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-04 11:40:08,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-04 11:40:08,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-04 11:40:08,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 11:40:08" (1/1) ... [2024-11-04 11:40:08,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15db1c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:40:08, skipping insertion in model container [2024-11-04 11:40:08,896 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 11:40:08" (1/1) ... [2024-11-04 11:40:08,971 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-04 11:40:09,529 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,808 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,845 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,847 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,850 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,858 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,873 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,873 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,874 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,874 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,897 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,897 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,898 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,899 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,899 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,926 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,928 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,928 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,937 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,941 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,942 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,943 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,945 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,946 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,946 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,947 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,951 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,957 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,961 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,970 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,971 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,972 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,972 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,973 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,973 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,977 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,978 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:09,999 WARN L250 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] [2024-11-04 11:40:10,010 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,011 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,030 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 11:40:10,066 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-04 11:40:10,089 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-04 11:40:10,158 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,172 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,180 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,181 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,183 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,184 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,185 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,186 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,186 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,186 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,188 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,188 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,189 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,190 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,191 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,191 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,192 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,192 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,194 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,196 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,196 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,197 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,201 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,201 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,202 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,202 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,204 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,207 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,208 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,214 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,215 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,216 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,216 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,219 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,221 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,221 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,222 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,226 WARN L250 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] [2024-11-04 11:40:10,227 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,228 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,238 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 11:40:10,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 11:40:10,252 INFO L200 MainTranslator]: Completed pre-run [2024-11-04 11:40:10,350 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] [2024-11-04 11:40:10,351 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] [2024-11-04 11:40:10,352 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] [2024-11-04 11:40:10,353 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] [2024-11-04 11:40:10,353 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] [2024-11-04 11:40:10,404 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] [2024-11-04 11:40:10,477 WARN L250 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] [2024-11-04 11:40:10,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 11:40:10,625 INFO L204 MainTranslator]: Completed translation [2024-11-04 11:40:10,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:40:10 WrapperNode [2024-11-04 11:40:10,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-04 11:40:10,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-04 11:40:10,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-04 11:40:10,627 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-04 11:40:10,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:40:10" (1/1) ... [2024-11-04 11:40:10,667 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:40:10" (1/1) ... [2024-11-04 11:40:10,740 INFO L138 Inliner]: procedures = 144, calls = 778, calls flagged for inlining = 54, calls inlined = 44, statements flattened = 1577 [2024-11-04 11:40:10,740 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-04 11:40:10,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-04 11:40:10,741 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-04 11:40:10,741 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-04 11:40:10,749 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:40:10" (1/1) ... [2024-11-04 11:40:10,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:40:10" (1/1) ... [2024-11-04 11:40:10,767 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:40:10" (1/1) ... [2024-11-04 11:40:10,897 INFO L175 MemorySlicer]: Split 342 memory accesses to 8 slices as follows [2, 261, 42, 8, 8, 8, 10, 3]. 76 percent of accesses are in the largest equivalence class. The 34 initializations are split as follows [2, 8, 0, 8, 8, 8, 0, 0]. The 214 writes are split as follows [0, 172, 42, 0, 0, 0, 0, 0]. [2024-11-04 11:40:10,897 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:40:10" (1/1) ... [2024-11-04 11:40:10,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:40:10" (1/1) ... [2024-11-04 11:40:10,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:40:10" (1/1) ... [2024-11-04 11:40:10,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:40:10" (1/1) ... [2024-11-04 11:40:10,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:40:10" (1/1) ... [2024-11-04 11:40:10,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:40:10" (1/1) ... [2024-11-04 11:40:10,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-04 11:40:10,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-04 11:40:10,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-04 11:40:10,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-04 11:40:10,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:40:10" (1/1) ... [2024-11-04 11:40:10,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 11:40:11,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 11:40:11,016 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) [2024-11-04 11:40:11,018 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 [2024-11-04 11:40:11,038 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-04 11:40:11,038 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-04 11:40:11,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-04 11:40:11,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-04 11:40:11,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-04 11:40:11,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-04 11:40:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-04 11:40:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-04 11:40:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-11-04 11:40:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2024-11-04 11:40:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_init [2024-11-04 11:40:11,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_init [2024-11-04 11:40:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2024-11-04 11:40:11,040 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2024-11-04 11:40:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#5 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#6 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#7 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-04 11:40:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-04 11:40:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-04 11:40:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-04 11:40:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-04 11:40:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-04 11:40:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-04 11:40:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-04 11:40:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-04 11:40:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-04 11:40:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-04 11:40:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-04 11:40:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-04 11:40:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-04 11:40:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-04 11:40:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-04 11:40:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-04 11:40:11,042 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-04 11:40:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2024-11-04 11:40:11,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2024-11-04 11:40:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-04 11:40:11,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-04 11:40:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-04 11:40:11,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-04 11:40:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_exit [2024-11-04 11:40:11,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_exit [2024-11-04 11:40:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-04 11:40:11,043 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-04 11:40:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-04 11:40:11,044 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-04 11:40:11,044 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-04 11:40:11,044 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-04 11:40:11,045 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2024-11-04 11:40:11,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2024-11-04 11:40:11,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2024-11-04 11:40:11,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2024-11-04 11:40:11,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#6 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#7 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#2 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#3 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#4 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#5 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#6 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#7 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-04 11:40:11,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2024-11-04 11:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2024-11-04 11:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#4 [2024-11-04 11:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#5 [2024-11-04 11:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#6 [2024-11-04 11:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#7 [2024-11-04 11:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#0 [2024-11-04 11:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#1 [2024-11-04 11:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#2 [2024-11-04 11:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#3 [2024-11-04 11:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#4 [2024-11-04 11:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#5 [2024-11-04 11:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#6 [2024-11-04 11:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#7 [2024-11-04 11:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2024-11-04 11:40:11,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2024-11-04 11:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-04 11:40:11,048 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-04 11:40:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2024-11-04 11:40:11,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2024-11-04 11:40:11,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-04 11:40:11,049 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2024-11-04 11:40:11,049 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2024-11-04 11:40:11,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-04 11:40:11,049 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-04 11:40:11,049 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-04 11:40:11,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-04 11:40:11,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-04 11:40:11,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-04 11:40:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-04 11:40:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-04 11:40:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-04 11:40:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-04 11:40:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-04 11:40:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-04 11:40:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#0 [2024-11-04 11:40:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#1 [2024-11-04 11:40:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#2 [2024-11-04 11:40:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#3 [2024-11-04 11:40:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#4 [2024-11-04 11:40:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#5 [2024-11-04 11:40:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#6 [2024-11-04 11:40:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#7 [2024-11-04 11:40:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2024-11-04 11:40:11,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2024-11-04 11:40:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#0 [2024-11-04 11:40:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#1 [2024-11-04 11:40:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#2 [2024-11-04 11:40:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#3 [2024-11-04 11:40:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#4 [2024-11-04 11:40:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#5 [2024-11-04 11:40:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#6 [2024-11-04 11:40:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#7 [2024-11-04 11:40:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#0 [2024-11-04 11:40:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#1 [2024-11-04 11:40:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#2 [2024-11-04 11:40:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#3 [2024-11-04 11:40:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#4 [2024-11-04 11:40:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#5 [2024-11-04 11:40:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#6 [2024-11-04 11:40:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#7 [2024-11-04 11:40:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-04 11:40:11,053 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-04 11:40:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-04 11:40:11,054 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-04 11:40:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-04 11:40:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-04 11:40:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-04 11:40:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-04 11:40:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-04 11:40:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-04 11:40:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-04 11:40:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-04 11:40:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-04 11:40:11,055 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-04 11:40:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-04 11:40:11,055 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-04 11:40:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-04 11:40:11,055 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-04 11:40:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-04 11:40:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-04 11:40:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-04 11:40:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2024-11-04 11:40:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2024-11-04 11:40:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#5 [2024-11-04 11:40:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#6 [2024-11-04 11:40:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#7 [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2024-11-04 11:40:11,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-04 11:40:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-04 11:40:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-04 11:40:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-04 11:40:11,057 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-04 11:40:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-04 11:40:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-04 11:40:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-04 11:40:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-04 11:40:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-04 11:40:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-04 11:40:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-04 11:40:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-04 11:40:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-04 11:40:11,057 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-04 11:40:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-04 11:40:11,057 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-04 11:40:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-04 11:40:11,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-04 11:40:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-04 11:40:11,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-04 11:40:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-04 11:40:11,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-04 11:40:11,058 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-11-04 11:40:11,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-11-04 11:40:11,058 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-04 11:40:11,058 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-04 11:40:11,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2024-11-04 11:40:11,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2024-11-04 11:40:11,058 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-04 11:40:11,058 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-04 11:40:11,058 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-11-04 11:40:11,060 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-11-04 11:40:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#0 [2024-11-04 11:40:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#1 [2024-11-04 11:40:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#2 [2024-11-04 11:40:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#3 [2024-11-04 11:40:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#4 [2024-11-04 11:40:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#5 [2024-11-04 11:40:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#6 [2024-11-04 11:40:11,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#7 [2024-11-04 11:40:11,061 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-04 11:40:11,061 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-04 11:40:11,061 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2024-11-04 11:40:11,061 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2024-11-04 11:40:11,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-04 11:40:11,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-04 11:40:11,392 INFO L238 CfgBuilder]: Building ICFG [2024-11-04 11:40:11,394 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-04 11:40:13,086 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2024-11-04 11:40:17,893 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-04 11:40:39,511 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2024-11-04 11:40:39,511 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2024-11-04 11:40:39,681 INFO L? ?]: Removed 599 outVars from TransFormulas that were not future-live. [2024-11-04 11:40:39,681 INFO L287 CfgBuilder]: Performing block encoding [2024-11-04 11:40:39,708 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-04 11:40:39,708 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-04 11:40:39,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 11:40:39 BoogieIcfgContainer [2024-11-04 11:40:39,709 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-04 11:40:39,712 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-04 11:40:39,712 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-04 11:40:39,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-04 11:40:39,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 11:40:08" (1/3) ... [2024-11-04 11:40:39,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763df7df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 11:40:39, skipping insertion in model container [2024-11-04 11:40:39,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:40:10" (2/3) ... [2024-11-04 11:40:39,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763df7df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 11:40:39, skipping insertion in model container [2024-11-04 11:40:39,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 11:40:39" (3/3) ... [2024-11-04 11:40:39,717 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2024-11-04 11:40:39,731 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-04 11:40:39,732 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-04 11:40:39,803 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-04 11:40:39,808 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;@558e7934, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-04 11:40:39,808 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-04 11:40:39,815 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) [2024-11-04 11:40:39,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-04 11:40:39,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 11:40:39,823 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] [2024-11-04 11:40:39,823 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 11:40:39,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 11:40:39,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1986823710, now seen corresponding path program 1 times [2024-11-04 11:40:39,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 11:40:39,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182431617] [2024-11-04 11:40:39,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 11:40:39,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 11:40:39,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 11:40:39,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-04 11:40:39,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-04 11:40:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 11:40:43,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-04 11:40:43,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 11:40:44,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 11:40:44,647 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 11:40:45,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 11:40:45,421 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 11:40:45,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182431617] [2024-11-04 11:40:45,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1182431617] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 11:40:45,422 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 11:40:45,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-04 11:40:45,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651404792] [2024-11-04 11:40:45,424 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 11:40:45,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-04 11:40:45,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 11:40:45,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-04 11:40:45,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-04 11:40:45,448 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) [2024-11-04 11:40:45,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 11:40:45,868 INFO L93 Difference]: Finished difference Result 1398 states and 1963 transitions. [2024-11-04 11:40:45,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-04 11:40:45,875 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 [2024-11-04 11:40:45,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 11:40:45,895 INFO L225 Difference]: With dead ends: 1398 [2024-11-04 11:40:45,896 INFO L226 Difference]: Without dead ends: 922 [2024-11-04 11:40:45,903 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 [2024-11-04 11:40:45,905 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-04 11:40:45,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 1288 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-04 11:40:45,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2024-11-04 11:40:46,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 918. [2024-11-04 11:40:46,027 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) [2024-11-04 11:40:46,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1208 transitions. [2024-11-04 11:40:46,043 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1208 transitions. Word has length 21 [2024-11-04 11:40:46,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 11:40:46,043 INFO L471 AbstractCegarLoop]: Abstraction has 918 states and 1208 transitions. [2024-11-04 11:40:46,044 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) [2024-11-04 11:40:46,044 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1208 transitions. [2024-11-04 11:40:46,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-04 11:40:46,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 11:40:46,045 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] [2024-11-04 11:40:46,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-04 11:40:46,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 11:40:46,246 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 11:40:46,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 11:40:46,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1461749880, now seen corresponding path program 1 times [2024-11-04 11:40:46,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 11:40:46,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1402709257] [2024-11-04 11:40:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 11:40:46,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 11:40:46,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 11:40:46,254 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-04 11:40:46,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-04 11:40:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 11:40:49,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-04 11:40:49,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 11:40:50,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 11:40:50,780 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 11:40:51,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 11:40:51,508 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 11:40:51,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1402709257] [2024-11-04 11:40:51,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1402709257] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 11:40:51,509 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 11:40:51,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-04 11:40:51,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581929508] [2024-11-04 11:40:51,509 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 11:40:51,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-04 11:40:51,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 11:40:51,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-04 11:40:51,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-04 11:40:51,511 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) [2024-11-04 11:40:51,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 11:40:51,792 INFO L93 Difference]: Finished difference Result 2719 states and 3591 transitions. [2024-11-04 11:40:51,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-04 11:40:51,793 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 [2024-11-04 11:40:51,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 11:40:51,806 INFO L225 Difference]: With dead ends: 2719 [2024-11-04 11:40:51,806 INFO L226 Difference]: Without dead ends: 1809 [2024-11-04 11:40:51,810 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 [2024-11-04 11:40:51,812 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 [2024-11-04 11:40:51,812 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] [2024-11-04 11:40:51,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2024-11-04 11:40:51,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1802. [2024-11-04 11:40:51,898 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) [2024-11-04 11:40:51,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 2375 transitions. [2024-11-04 11:40:51,910 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 2375 transitions. Word has length 22 [2024-11-04 11:40:51,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 11:40:51,910 INFO L471 AbstractCegarLoop]: Abstraction has 1802 states and 2375 transitions. [2024-11-04 11:40:51,910 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) [2024-11-04 11:40:51,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 2375 transitions. [2024-11-04 11:40:51,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-04 11:40:51,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 11:40:51,915 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] [2024-11-04 11:40:51,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-04 11:40:52,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 11:40:52,116 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 11:40:52,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 11:40:52,116 INFO L85 PathProgramCache]: Analyzing trace with hash -440434169, now seen corresponding path program 1 times [2024-11-04 11:40:52,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 11:40:52,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587387920] [2024-11-04 11:40:52,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 11:40:52,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 11:40:52,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 11:40:52,118 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-04 11:40:52,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-04 11:40:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 11:40:55,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 1372 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-04 11:40:55,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 11:40:55,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-04 11:40:55,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 11:40:57,735 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-04 11:40:57,735 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 11:40:57,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587387920] [2024-11-04 11:40:57,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [587387920] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 11:40:57,735 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 11:40:57,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-04 11:40:57,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390409786] [2024-11-04 11:40:57,736 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 11:40:57,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-04 11:40:57,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 11:40:57,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-04 11:40:57,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-04 11:40:57,737 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) [2024-11-04 11:41:00,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 11:41:00,189 INFO L93 Difference]: Finished difference Result 5212 states and 7293 transitions. [2024-11-04 11:41:00,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-04 11:41:00,190 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 [2024-11-04 11:41:00,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 11:41:00,211 INFO L225 Difference]: With dead ends: 5212 [2024-11-04 11:41:00,212 INFO L226 Difference]: Without dead ends: 3425 [2024-11-04 11:41:00,220 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 [2024-11-04 11:41:00,222 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, 2.3s IncrementalHoareTripleChecker+Time [2024-11-04 11:41:00,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 1935 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-04 11:41:00,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3425 states. [2024-11-04 11:41:00,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3425 to 3401. [2024-11-04 11:41:00,359 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) [2024-11-04 11:41:00,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3401 states to 3401 states and 4888 transitions. [2024-11-04 11:41:00,378 INFO L78 Accepts]: Start accepts. Automaton has 3401 states and 4888 transitions. Word has length 76 [2024-11-04 11:41:00,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 11:41:00,378 INFO L471 AbstractCegarLoop]: Abstraction has 3401 states and 4888 transitions. [2024-11-04 11:41:00,380 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) [2024-11-04 11:41:00,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3401 states and 4888 transitions. [2024-11-04 11:41:00,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-04 11:41:00,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 11:41:00,386 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] [2024-11-04 11:41:00,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-04 11:41:00,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 11:41:00,587 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 11:41:00,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 11:41:00,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1281989802, now seen corresponding path program 1 times [2024-11-04 11:41:00,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 11:41:00,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403551724] [2024-11-04 11:41:00,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 11:41:00,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 11:41:00,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 11:41:00,590 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-04 11:41:00,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-04 11:41:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 11:41:04,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 1384 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-04 11:41:04,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 11:41:04,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 11:41:04,634 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 11:41:07,001 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 11:41:07,001 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 11:41:07,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403551724] [2024-11-04 11:41:07,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1403551724] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 11:41:07,001 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 11:41:07,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-04 11:41:07,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965758363] [2024-11-04 11:41:07,002 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 11:41:07,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-04 11:41:07,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 11:41:07,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-04 11:41:07,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-04 11:41:07,003 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) [2024-11-04 11:41:07,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 11:41:07,795 INFO L93 Difference]: Finished difference Result 6810 states and 9793 transitions. [2024-11-04 11:41:07,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-04 11:41:07,796 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 [2024-11-04 11:41:07,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 11:41:07,819 INFO L225 Difference]: With dead ends: 6810 [2024-11-04 11:41:07,819 INFO L226 Difference]: Without dead ends: 3425 [2024-11-04 11:41:07,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-04 11:41:07,832 INFO L432 NwaCegarLoop]: 614 mSDtfsCounter, 0 mSDsluCounter, 2440 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-11-04 11:41:07,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3054 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-04 11:41:07,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3425 states. [2024-11-04 11:41:07,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3425 to 3425. [2024-11-04 11:41:07,966 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) [2024-11-04 11:41:07,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3425 states to 3425 states and 4912 transitions. [2024-11-04 11:41:07,984 INFO L78 Accepts]: Start accepts. Automaton has 3425 states and 4912 transitions. Word has length 78 [2024-11-04 11:41:07,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 11:41:07,986 INFO L471 AbstractCegarLoop]: Abstraction has 3425 states and 4912 transitions. [2024-11-04 11:41:07,986 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) [2024-11-04 11:41:07,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3425 states and 4912 transitions. [2024-11-04 11:41:07,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-04 11:41:07,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 11:41:07,989 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] [2024-11-04 11:41:08,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-04 11:41:08,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 11:41:08,190 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 11:41:08,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 11:41:08,191 INFO L85 PathProgramCache]: Analyzing trace with hash -21628062, now seen corresponding path program 1 times [2024-11-04 11:41:08,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 11:41:08,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345300113] [2024-11-04 11:41:08,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 11:41:08,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 11:41:08,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 11:41:08,193 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-04 11:41:08,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-04 11:41:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 11:41:11,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-04 11:41:11,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 11:41:14,319 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 11:41:14,319 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 11:41:19,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 11:41:19,682 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 11:41:19,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345300113] [2024-11-04 11:41:19,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1345300113] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 11:41:19,682 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 11:41:19,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2024-11-04 11:41:19,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041311112] [2024-11-04 11:41:19,683 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 11:41:19,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-04 11:41:19,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 11:41:19,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-04 11:41:19,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-04 11:41:19,684 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) [2024-11-04 11:41:20,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 11:41:20,499 INFO L93 Difference]: Finished difference Result 5167 states and 7443 transitions. [2024-11-04 11:41:20,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-04 11:41:20,500 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 [2024-11-04 11:41:20,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 11:41:20,523 INFO L225 Difference]: With dead ends: 5167 [2024-11-04 11:41:20,523 INFO L226 Difference]: Without dead ends: 3453 [2024-11-04 11:41:20,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-04 11:41:20,534 INFO L432 NwaCegarLoop]: 614 mSDtfsCounter, 0 mSDsluCounter, 3066 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-11-04 11:41:20,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3680 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-04 11:41:20,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3453 states. [2024-11-04 11:41:20,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3453 to 3453. [2024-11-04 11:41:20,680 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) [2024-11-04 11:41:20,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3453 states to 3453 states and 4956 transitions. [2024-11-04 11:41:20,702 INFO L78 Accepts]: Start accepts. Automaton has 3453 states and 4956 transitions. Word has length 79 [2024-11-04 11:41:20,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 11:41:20,704 INFO L471 AbstractCegarLoop]: Abstraction has 3453 states and 4956 transitions. [2024-11-04 11:41:20,704 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) [2024-11-04 11:41:20,704 INFO L276 IsEmpty]: Start isEmpty. Operand 3453 states and 4956 transitions. [2024-11-04 11:41:20,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-04 11:41:20,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 11:41:20,708 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] [2024-11-04 11:41:20,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-04 11:41:20,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 11:41:20,909 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 11:41:20,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 11:41:20,909 INFO L85 PathProgramCache]: Analyzing trace with hash 308137699, now seen corresponding path program 1 times [2024-11-04 11:41:20,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 11:41:20,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519608524] [2024-11-04 11:41:20,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 11:41:20,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 11:41:20,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 11:41:20,914 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-04 11:41:20,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-04 11:41:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 11:41:24,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-04 11:41:24,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 11:41:28,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 11:41:28,135 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 11:41:31,457 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 11:41:31,457 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 11:41:31,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [519608524] [2024-11-04 11:41:31,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [519608524] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 11:41:31,457 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 11:41:31,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2024-11-04 11:41:31,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692998403] [2024-11-04 11:41:31,458 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 11:41:31,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-04 11:41:31,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 11:41:31,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-04 11:41:31,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-04 11:41:31,459 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) [2024-11-04 11:41:34,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 11:41:34,048 INFO L93 Difference]: Finished difference Result 7242 states and 10474 transitions. [2024-11-04 11:41:34,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-04 11:41:34,050 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 [2024-11-04 11:41:34,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 11:41:34,069 INFO L225 Difference]: With dead ends: 7242 [2024-11-04 11:41:34,069 INFO L226 Difference]: Without dead ends: 3805 [2024-11-04 11:41:34,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-04 11:41:34,079 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 49 mSDsluCounter, 5552 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 6257 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-04 11:41:34,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 6257 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-04 11:41:34,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3805 states. [2024-11-04 11:41:34,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3805 to 3465. [2024-11-04 11:41:34,268 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) [2024-11-04 11:41:34,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 4976 transitions. [2024-11-04 11:41:34,282 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 4976 transitions. Word has length 79 [2024-11-04 11:41:34,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 11:41:34,283 INFO L471 AbstractCegarLoop]: Abstraction has 3465 states and 4976 transitions. [2024-11-04 11:41:34,283 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) [2024-11-04 11:41:34,283 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 4976 transitions. [2024-11-04 11:41:34,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-04 11:41:34,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 11:41:34,286 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 11:41:34,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-04 11:41:34,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 11:41:34,488 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 11:41:34,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 11:41:34,489 INFO L85 PathProgramCache]: Analyzing trace with hash 321567651, now seen corresponding path program 1 times [2024-11-04 11:41:34,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 11:41:34,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006714659] [2024-11-04 11:41:34,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 11:41:34,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 11:41:34,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 11:41:34,491 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-04 11:41:34,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-04 11:41:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 11:41:38,114 INFO L255 TraceCheckSpWp]: Trace formula consists of 1405 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-04 11:41:38,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 11:41:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-04 11:41:39,611 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 11:41:42,620 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-04 11:41:42,621 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 11:41:42,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006714659] [2024-11-04 11:41:42,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1006714659] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 11:41:42,621 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 11:41:42,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2024-11-04 11:41:42,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000561919] [2024-11-04 11:41:42,621 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 11:41:42,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-04 11:41:42,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 11:41:42,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-04 11:41:42,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-04 11:41:42,622 INFO L87 Difference]: Start difference. First operand 3465 states and 4976 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11)