./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4a1e17c33569fa40e536cd8c869720d5a80d6c0d7c343e9efbe1ac963f2ae01b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:42:09,825 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:42:09,894 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 22:42:09,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:42:09,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:42:09,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:42:09,925 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:42:09,926 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:42:09,927 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:42:09,927 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:42:09,928 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:42:09,929 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:42:09,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:42:09,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:42:09,931 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:42:09,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:42:09,932 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:42:09,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:42:09,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:42:09,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:42:09,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:42:09,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:42:09,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:42:09,944 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:42:09,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:42:09,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:42:09,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:42:09,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:42:09,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:42:09,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:42:09,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:42:09,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:42:09,949 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:42:09,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:42:09,970 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:42:09,970 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:42:09,970 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:42:09,970 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:42:09,971 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:42:09,971 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a1e17c33569fa40e536cd8c869720d5a80d6c0d7c343e9efbe1ac963f2ae01b [2023-11-23 22:42:10,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:42:10,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:42:10,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:42:10,280 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:42:10,280 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:42:10,282 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2023-11-23 22:42:13,356 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:42:14,088 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:42:14,089 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2023-11-23 22:42:14,154 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/bin/uautomizer-verify-zZY32mL2XJ/data/ebbb8f8a6/e1231a66c52942998d2698f8784e3b07/FLAG79dd3d690 [2023-11-23 22:42:14,170 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/bin/uautomizer-verify-zZY32mL2XJ/data/ebbb8f8a6/e1231a66c52942998d2698f8784e3b07 [2023-11-23 22:42:14,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:42:14,179 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:42:14,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:42:14,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:42:14,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:42:14,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:42:14" (1/1) ... [2023-11-23 22:42:14,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702e6e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:14, skipping insertion in model container [2023-11-23 22:42:14,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:42:14" (1/1) ... [2023-11-23 22:42:14,353 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:42:16,921 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i[321673,321686] [2023-11-23 22:42:16,995 WARN L635 FunctionHandler]: implicit declaration of function ldv_xmalloc [2023-11-23 22:42:17,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:42:17,052 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:42:17,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6371] [2023-11-23 22:42:17,220 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6373] [2023-11-23 22:42:17,221 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6383] [2023-11-23 22:42:17,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [6390] [2023-11-23 22:42:17,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; addl %1,%0": "+m" (v->counter): "ir" (i)); [6520] [2023-11-23 22:42:17,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %1,%0": "+m" (v->counter): "ir" (i)); [6527] [2023-11-23 22:42:17,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [6534] [2023-11-23 22:42:17,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [6545] [2023-11-23 22:42:17,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6548] [2023-11-23 22:42:17,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6551] [2023-11-23 22:42:17,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6554] [2023-11-23 22:42:17,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [6637] [2023-11-23 22:42:17,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [6644] [2023-11-23 22:42:17,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [6838-6839] [2023-11-23 22:42:17,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [6867-6868] [2023-11-23 22:42:17,256 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (108), "i" (12UL)); [6897-6898] [2023-11-23 22:42:17,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (& ((pool_levels *)arg)->buftype), "i" (4UL)); [10046-10047] [2023-11-23 22:42:17,691 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i[321673,321686] [2023-11-23 22:42:17,700 WARN L635 FunctionHandler]: implicit declaration of function ldv_xmalloc [2023-11-23 22:42:17,704 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:42:17,803 WARN L675 CHandler]: The function ldv_xmalloc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:42:17,803 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:42:17,804 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:42:17,813 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:42:17,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:17 WrapperNode [2023-11-23 22:42:17,815 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:42:17,816 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:42:17,816 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:42:17,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:42:17,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:17" (1/1) ... [2023-11-23 22:42:17,969 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:17" (1/1) ... [2023-11-23 22:42:18,328 INFO L138 Inliner]: procedures = 252, calls = 2387, calls flagged for inlining = 114, calls inlined = 111, statements flattened = 6910 [2023-11-23 22:42:18,329 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:42:18,330 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:42:18,330 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:42:18,331 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:42:18,343 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:17" (1/1) ... [2023-11-23 22:42:18,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:17" (1/1) ... [2023-11-23 22:42:18,380 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:17" (1/1) ... [2023-11-23 22:42:18,433 WARN L107 HeapSplitter]: Omit memory slicing because it failed with the following exception: Must not add nullpointer [2023-11-23 22:42:18,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:17" (1/1) ... [2023-11-23 22:42:18,434 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:17" (1/1) ... [2023-11-23 22:42:18,644 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:17" (1/1) ... [2023-11-23 22:42:18,705 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:17" (1/1) ... [2023-11-23 22:42:18,747 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:17" (1/1) ... [2023-11-23 22:42:18,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:17" (1/1) ... [2023-11-23 22:42:18,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:42:18,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:42:18,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:42:18,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:42:18,945 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:17" (1/1) ... [2023-11-23 22:42:18,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:42:18,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:42:18,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:42:19,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abaccc5-0d42-4ff7-aec0-1e8be9df6fe5/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:42:19,030 INFO L130 BoogieDeclarations]: Found specification of procedure atm_charge [2023-11-23 22:42:19,030 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_charge [2023-11-23 22:42:19,030 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2023-11-23 22:42:19,031 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2023-11-23 22:42:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure process_tsq [2023-11-23 22:42:19,031 INFO L138 BoogieDeclarations]: Found implementation of procedure process_tsq [2023-11-23 22:42:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 22:42:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2023-11-23 22:42:19,032 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2023-11-23 22:42:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 22:42:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 22:42:19,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 22:42:19,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 22:42:19,033 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 22:42:19,033 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-11-23 22:42:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-11-23 22:42:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure ns_open [2023-11-23 22:42:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_open [2023-11-23 22:42:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-23 22:42:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-23 22:42:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 22:42:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 22:42:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure ns_read_sram [2023-11-23 22:42:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_read_sram [2023-11-23 22:42:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure get_scq [2023-11-23 22:42:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure get_scq [2023-11-23 22:42:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 22:42:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 22:42:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_rx_buf [2023-11-23 22:42:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_rx_buf [2023-11-23 22:42:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 22:42:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 22:42:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 22:42:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 22:42:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure __net_timestamp [2023-11-23 22:42:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __net_timestamp [2023-11-23 22:42:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 22:42:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 22:42:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 22:42:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 22:42:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 22:42:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 22:42:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 22:42:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 22:42:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 22:42:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 22:42:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioctl [2023-11-23 22:42:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioctl [2023-11-23 22:42:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-23 22:42:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-23 22:42:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:42:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 22:42:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 22:42:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 22:42:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure process_rsq [2023-11-23 22:42:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure process_rsq [2023-11-23 22:42:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 22:42:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 22:42:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 22:42:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 22:42:19,045 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 22:42:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 22:42:19,045 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_alloc_skb [2023-11-23 22:42:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_alloc_skb [2023-11-23 22:42:19,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:42:19,045 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-23 22:42:19,046 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-23 22:42:19,046 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2023-11-23 22:42:19,046 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2023-11-23 22:42:19,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 22:42:19,046 INFO L130 BoogieDeclarations]: Found specification of procedure dequeue_sm_buf [2023-11-23 22:42:19,046 INFO L138 BoogieDeclarations]: Found implementation of procedure dequeue_sm_buf [2023-11-23 22:42:19,046 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 22:42:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 22:42:19,047 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-23 22:42:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-23 22:42:19,047 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-23 22:42:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-23 22:42:19,047 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 22:42:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 22:42:19,048 INFO L130 BoogieDeclarations]: Found specification of procedure push_rxbufs [2023-11-23 22:42:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure push_rxbufs [2023-11-23 22:42:19,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 22:42:19,048 INFO L130 BoogieDeclarations]: Found specification of procedure ns_phy_get [2023-11-23 22:42:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_phy_get [2023-11-23 22:42:19,048 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 22:42:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 22:42:19,049 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 22:42:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 22:42:19,049 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2023-11-23 22:42:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2023-11-23 22:42:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 22:42:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure ns_close [2023-11-23 22:42:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_close [2023-11-23 22:42:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-23 22:42:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-23 22:42:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-23 22:42:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-23 22:42:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 22:42:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 22:42:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 22:42:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_read_eprom [2023-11-23 22:42:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_read_eprom [2023-11-23 22:42:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 22:42:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 22:42:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure ns_phy_put [2023-11-23 22:42:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_phy_put [2023-11-23 22:42:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 22:42:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 22:42:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_iov_buf [2023-11-23 22:42:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_iov_buf [2023-11-23 22:42:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-11-23 22:42:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-11-23 22:42:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 22:42:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 22:42:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 22:42:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 22:42:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 22:42:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-23 22:42:19,055 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-23 22:42:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure ns_send [2023-11-23 22:42:19,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_send [2023-11-23 22:42:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2023-11-23 22:42:19,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2023-11-23 22:42:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-23 22:42:19,056 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-23 22:42:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-23 22:42:19,056 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-23 22:42:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 22:42:19,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 22:42:19,057 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-11-23 22:42:19,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-11-23 22:42:19,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 22:42:19,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 22:42:19,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:42:19,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 22:42:19,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 22:42:19,058 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-23 22:42:19,058 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-23 22:42:19,058 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-23 22:42:19,058 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-23 22:42:19,058 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2023-11-23 22:42:19,059 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2023-11-23 22:42:19,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:42:19,059 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2023-11-23 22:42:19,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2023-11-23 22:42:19,059 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-23 22:42:19,059 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-23 22:42:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 22:42:19,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 22:42:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 22:42:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 22:42:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 22:42:19,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 22:42:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-23 22:42:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-23 22:42:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-23 22:42:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-23 22:42:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 22:42:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 22:42:19,062 INFO L130 BoogieDeclarations]: Found specification of procedure free_scq [2023-11-23 22:42:19,062 INFO L138 BoogieDeclarations]: Found implementation of procedure free_scq [2023-11-23 22:42:19,062 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2023-11-23 22:42:19,062 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2023-11-23 22:42:19,062 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2023-11-23 22:42:19,062 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2023-11-23 22:42:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_iovec_rx_bufs [2023-11-23 22:42:19,063 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_iovec_rx_bufs [2023-11-23 22:42:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-11-23 22:42:19,063 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-11-23 22:42:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_remove_one [2023-11-23 22:42:19,063 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_remove_one [2023-11-23 22:42:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2023-11-23 22:42:19,064 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2023-11-23 22:42:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 22:42:19,064 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 22:42:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-23 22:42:19,064 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-23 22:42:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure ns_init_card_error [2023-11-23 22:42:19,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_init_card_error [2023-11-23 22:42:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-23 22:42:19,065 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-23 22:42:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-23 22:42:19,065 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-23 22:42:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 22:42:19,066 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 22:42:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure ns_write_sram [2023-11-23 22:42:19,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_write_sram [2023-11-23 22:42:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-23 22:42:19,066 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-23 22:42:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 22:42:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 22:42:19,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 22:42:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-11-23 22:42:19,067 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-11-23 22:42:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-23 22:42:19,067 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-23 22:42:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:42:19,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:42:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-11-23 22:42:19,068 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-11-23 22:42:19,961 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:42:19,967 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:42:21,205 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 22:42:28,598 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:42:29,009 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:42:29,009 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-23 22:42:29,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:42:29 BoogieIcfgContainer [2023-11-23 22:42:29,011 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:42:29,017 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:42:29,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:42:29,022 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:42:29,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:42:14" (1/3) ... [2023-11-23 22:42:29,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c816bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:42:29, skipping insertion in model container [2023-11-23 22:42:29,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:17" (2/3) ... [2023-11-23 22:42:29,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c816bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:42:29, skipping insertion in model container [2023-11-23 22:42:29,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:42:29" (3/3) ... [2023-11-23 22:42:29,027 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2023-11-23 22:42:29,051 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:42:29,051 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:42:29,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:42:29,237 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, 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;@72d366ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:42:29,238 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:42:29,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 2207 states, 1498 states have (on average 1.465287049399199) internal successors, (2195), 1569 states have internal predecessors, (2195), 621 states have call successors, (621), 91 states have call predecessors, (621), 90 states have return successors, (615), 604 states have call predecessors, (615), 615 states have call successors, (615) [2023-11-23 22:42:29,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-23 22:42:29,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:42:29,287 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:42:29,288 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:42:29,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:42:29,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1139358676, now seen corresponding path program 1 times [2023-11-23 22:42:29,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:42:29,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887552515] [2023-11-23 22:42:29,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:42:29,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:42:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:42:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 22:42:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:42:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 22:42:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:42:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 22:42:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:42:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 22:42:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:42:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 22:42:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 22:42:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 22:42:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 22:42:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:30,517 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-11-23 22:42:30,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:42:30,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887552515] [2023-11-23 22:42:30,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887552515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:42:30,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:42:30,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:42:30,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607665026] [2023-11-23 22:42:30,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:42:30,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:42:30,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:42:30,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:42:30,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:42:30,597 INFO L87 Difference]: Start difference. First operand has 2207 states, 1498 states have (on average 1.465287049399199) internal successors, (2195), 1569 states have internal predecessors, (2195), 621 states have call successors, (621), 91 states have call predecessors, (621), 90 states have return successors, (615), 604 states have call predecessors, (615), 615 states have call successors, (615) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 22:42:45,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:42:47,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:42:49,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:42:51,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:42:52,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:42:52,687 INFO L93 Difference]: Finished difference Result 4769 states and 7723 transitions. [2023-11-23 22:42:52,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:42:52,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 127 [2023-11-23 22:42:52,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:42:52,746 INFO L225 Difference]: With dead ends: 4769 [2023-11-23 22:42:52,747 INFO L226 Difference]: Without dead ends: 2550 [2023-11-23 22:42:52,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:42:52,788 INFO L413 NwaCegarLoop]: 2511 mSDtfsCounter, 1347 mSDsluCounter, 3688 mSDsCounter, 0 mSdLazyCounter, 4212 mSolverCounterSat, 1612 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 6199 SdHoareTripleChecker+Invalid, 5828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1612 IncrementalHoareTripleChecker+Valid, 4212 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2023-11-23 22:42:52,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 6199 Invalid, 5828 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1612 Valid, 4212 Invalid, 4 Unknown, 0 Unchecked, 21.5s Time] [2023-11-23 22:42:52,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2023-11-23 22:42:53,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2180. [2023-11-23 22:42:53,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 1479 states have (on average 1.4435429344151454) internal successors, (2135), 1540 states have internal predecessors, (2135), 611 states have call successors, (611), 90 states have call predecessors, (611), 89 states have return successors, (610), 599 states have call predecessors, (610), 610 states have call successors, (610) [2023-11-23 22:42:53,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3356 transitions. [2023-11-23 22:42:53,100 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3356 transitions. Word has length 127 [2023-11-23 22:42:53,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:42:53,101 INFO L495 AbstractCegarLoop]: Abstraction has 2180 states and 3356 transitions. [2023-11-23 22:42:53,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 22:42:53,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3356 transitions. [2023-11-23 22:42:53,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-23 22:42:53,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:42:53,113 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:42:53,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:42:53,114 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:42:53,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:42:53,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1113541790, now seen corresponding path program 1 times [2023-11-23 22:42:53,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:42:53,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884709215] [2023-11-23 22:42:53,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:42:53,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:42:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:42:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 22:42:53,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:42:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 22:42:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:42:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 22:42:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:42:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 22:42:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:42:53,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 22:42:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 22:42:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 22:42:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 22:42:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:42:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:53,703 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-11-23 22:42:53,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:42:53,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884709215] [2023-11-23 22:42:53,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884709215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:42:53,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:42:53,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:42:53,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895266085] [2023-11-23 22:42:53,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:42:53,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:42:53,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:42:53,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:42:53,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:42:53,711 INFO L87 Difference]: Start difference. First operand 2180 states and 3356 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12)