./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-char-ipmi-ipmi_watchdog.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-char-ipmi-ipmi_watchdog.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/bin/utaipan-verify-t7M7D8N6sZ --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1f1aff5e4c83d88c522badf0f4d59dd68712f74ddffe3a813d6da36b7733c959 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:17:33,760 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:17:33,854 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:17:33,868 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:17:33,868 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:17:33,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:17:33,916 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:17:33,917 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:17:33,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:17:33,922 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:17:33,923 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:17:33,923 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:17:33,924 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:17:33,925 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:17:33,926 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:17:33,926 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:17:33,926 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:17:33,927 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:17:33,927 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:17:33,928 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:17:33,928 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:17:33,928 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:17:33,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:17:33,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:17:33,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:17:33,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:17:33,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:17:33,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:17:33,932 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:17:33,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:17:33,934 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:17:33,934 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:17:33,934 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:17:33,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:33,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:17:33,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:17:33,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:17:33,935 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:17:33,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:17:33,936 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:17:33,936 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:17:33,937 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:17:33,937 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f1aff5e4c83d88c522badf0f4d59dd68712f74ddffe3a813d6da36b7733c959 [2023-11-19 05:17:34,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:17:34,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:17:34,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:17:34,249 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:17:34,249 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:17:34,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-char-ipmi-ipmi_watchdog.ko.cil.out.i [2023-11-19 05:17:37,226 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:17:37,795 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:17:37,796 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-char-ipmi-ipmi_watchdog.ko.cil.out.i [2023-11-19 05:17:37,841 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/bin/utaipan-verify-t7M7D8N6sZ/data/ca8e2b5fd/c8a0a6475c9d4744a30ea8d9c8e318a4/FLAGc8af3a5e8 [2023-11-19 05:17:37,859 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/bin/utaipan-verify-t7M7D8N6sZ/data/ca8e2b5fd/c8a0a6475c9d4744a30ea8d9c8e318a4 [2023-11-19 05:17:37,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:17:37,868 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:17:37,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:37,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:17:37,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:17:37,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:37" (1/1) ... [2023-11-19 05:17:37,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aeaaee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:37, skipping insertion in model container [2023-11-19 05:17:37,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:37" (1/1) ... [2023-11-19 05:17:38,032 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:17:39,362 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_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-char-ipmi-ipmi_watchdog.ko.cil.out.i[303043,303056] [2023-11-19 05:17:39,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:39,634 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:17:39,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [2927] [2023-11-19 05:17:39,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [2934-2935] [2023-11-19 05:17:39,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [2942-2943] [2023-11-19 05:17:39,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [2963] [2023-11-19 05:17:39,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2965] [2023-11-19 05:17:39,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2967] [2023-11-19 05:17:39,702 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2970] [2023-11-19 05:17:39,703 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; addl %1,%0": "+m" (v->counter): "ir" (i)); [3014] [2023-11-19 05:17:39,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; decl %0": "+m" (v->counter)); [3021] [2023-11-19 05:17:39,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [3028-3029] [2023-11-19 05:17:39,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; incl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [3036-3037] [2023-11-19 05:17:39,843 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_1": "=a" (__ret_gu), "=d" (__val_gu): "0" (buf + i)); [5769] [2023-11-19 05:17:39,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_2": "=a" (__ret_gu), "=d" (__val_gu): "0" (buf + i)); [5771] [2023-11-19 05:17:39,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_4": "=a" (__ret_gu), "=d" (__val_gu): "0" (buf + i)); [5773] [2023-11-19 05:17:39,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_8": "=a" (__ret_gu), "=d" (__val_gu): "0" (buf + i)); [5775] [2023-11-19 05:17:39,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_X": "=a" (__ret_gu), "=d" (__val_gu): "0" (buf + i)); [5778] [2023-11-19 05:17:39,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5862] [2023-11-19 05:17:39,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5868] [2023-11-19 05:17:39,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5874] [2023-11-19 05:17:39,849 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5881] [2023-11-19 05:17:39,877 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_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-char-ipmi-ipmi_watchdog.ko.cil.out.i[303043,303056] [2023-11-19 05:17:39,885 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:40,079 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:17:40,079 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:17:40,079 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:17:40,087 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:17:40,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:40 WrapperNode [2023-11-19 05:17:40,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:40,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:40,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:17:40,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:17:40,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:40" (1/1) ... [2023-11-19 05:17:40,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:40" (1/1) ... [2023-11-19 05:17:40,471 INFO L138 Inliner]: procedures = 148, calls = 4244, calls flagged for inlining = 66, calls inlined = 64, statements flattened = 5486 [2023-11-19 05:17:40,472 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:40,473 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:17:40,473 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:17:40,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:17:40,483 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:40" (1/1) ... [2023-11-19 05:17:40,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:40" (1/1) ... [2023-11-19 05:17:40,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:40" (1/1) ... [2023-11-19 05:17:40,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:40" (1/1) ... [2023-11-19 05:17:40,733 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:40" (1/1) ... [2023-11-19 05:17:40,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:40" (1/1) ... [2023-11-19 05:17:40,788 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:40" (1/1) ... [2023-11-19 05:17:40,814 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:40" (1/1) ... [2023-11-19 05:17:40,935 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:17:40,942 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:17:40,942 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:17:40,942 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:17:40,943 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:40" (1/1) ... [2023-11-19 05:17:40,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:40,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:17:40,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:17:40,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3017b0d1-342c-4b8d-ac0f-5753641eb8c4/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:17:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-19 05:17:41,030 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-19 05:17:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 05:17:41,032 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 05:17:41,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:17:41,033 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-19 05:17:41,033 INFO L130 BoogieDeclarations]: Found specification of procedure check_parms [2023-11-19 05:17:41,033 INFO L138 BoogieDeclarations]: Found implementation of procedure check_parms [2023-11-19 05:17:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:17:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_request_supply_msgs [2023-11-19 05:17:41,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_request_supply_msgs [2023-11-19 05:17:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure preaction_op [2023-11-19 05:17:41,034 INFO L138 BoogieDeclarations]: Found implementation of procedure preaction_op [2023-11-19 05:17:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2023-11-19 05:17:41,035 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2023-11-19 05:17:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 05:17:41,036 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 05:17:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure panic [2023-11-19 05:17:41,036 INFO L138 BoogieDeclarations]: Found implementation of procedure panic [2023-11-19 05:17:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_heartbeat [2023-11-19 05:17:41,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_heartbeat [2023-11-19 05:17:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_open [2023-11-19 05:17:41,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_open [2023-11-19 05:17:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_poll [2023-11-19 05:17:41,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_poll [2023-11-19 05:17:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure panic_smi_free [2023-11-19 05:17:41,037 INFO L138 BoogieDeclarations]: Found implementation of procedure panic_smi_free [2023-11-19 05:17:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_unregister_watchdog [2023-11-19 05:17:41,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_unregister_watchdog [2023-11-19 05:17:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_die_notifier [2023-11-19 05:17:41,037 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_die_notifier [2023-11-19 05:17:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:17:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 05:17:41,038 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 05:17:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 05:17:41,038 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 05:17:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure action_op [2023-11-19 05:17:41,038 INFO L138 BoogieDeclarations]: Found implementation of procedure action_op [2023-11-19 05:17:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-19 05:17:41,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-19 05:17:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure panic_recv_free [2023-11-19 05:17:41,039 INFO L138 BoogieDeclarations]: Found implementation of procedure panic_recv_free [2023-11-19 05:17:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-19 05:17:41,040 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-19 05:17:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:17:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-11-19 05:17:41,041 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-11-19 05:17:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-19 05:17:41,041 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-19 05:17:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:17:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure preop_op [2023-11-19 05:17:41,041 INFO L138 BoogieDeclarations]: Found implementation of procedure preop_op [2023-11-19 05:17:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_destroy_user [2023-11-19 05:17:41,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_destroy_user [2023-11-19 05:17:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-19 05:17:41,042 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-19 05:17:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:17:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:17:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 05:17:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_close [2023-11-19 05:17:41,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_close [2023-11-19 05:17:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure i_ipmi_set_timeout [2023-11-19 05:17:41,043 INFO L138 BoogieDeclarations]: Found implementation of procedure i_ipmi_set_timeout [2023-11-19 05:17:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:17:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-11-19 05:17:41,044 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-11-19 05:17:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-11-19 05:17:41,044 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-11-19 05:17:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_set_timeout [2023-11-19 05:17:41,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_set_timeout [2023-11-19 05:17:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_poll_interface [2023-11-19 05:17:41,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_poll_interface [2023-11-19 05:17:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-19 05:17:41,045 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-19 05:17:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_register_watchdog [2023-11-19 05:17:41,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_register_watchdog [2023-11-19 05:17:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-11-19 05:17:41,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-11-19 05:17:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:17:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2023-11-19 05:17:41,046 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2023-11-19 05:17:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:17:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 05:17:41,046 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 05:17:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:17:41,046 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:17:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_notifier_chain_unregister [2023-11-19 05:17:41,047 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_notifier_chain_unregister [2023-11-19 05:17:41,047 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 05:17:41,047 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 05:17:41,048 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 05:17:41,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 05:17:41,048 INFO L130 BoogieDeclarations]: Found specification of procedure panic_halt_ipmi_set_timeout [2023-11-19 05:17:41,048 INFO L138 BoogieDeclarations]: Found implementation of procedure panic_halt_ipmi_set_timeout [2023-11-19 05:17:41,048 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc_and_test [2023-11-19 05:17:41,048 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc_and_test [2023-11-19 05:17:41,049 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 05:17:41,049 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 05:17:41,049 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 05:17:41,049 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 05:17:41,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:17:41,049 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-19 05:17:41,050 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 05:17:41,050 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 05:17:41,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:17:41,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:17:41,480 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:17:41,484 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:17:42,329 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-11-19 05:17:42,329 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-11-19 05:17:42,546 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 05:17:42,563 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-11-19 05:17:42,563 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-11-19 05:17:42,773 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 05:17:42,780 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 05:17:42,781 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 05:18:34,933 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L5860-1: ipmi_read_~tmp___0~5#1.base, ipmi_read_~tmp___0~5#1.offset := ipmi_read_#t~ret194#1.base, ipmi_read_#t~ret194#1.offset;havoc ipmi_read_#t~ret194#1.base, ipmi_read_#t~ret194#1.offset;ipmi_read_~__ptr~0#1.base, ipmi_read_~__ptr~0#1.offset := ipmi_read_~tmp___0~5#1.base, ipmi_read_~tmp___0~5#1.offset; [2023-11-19 05:18:34,933 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L5860: SUMMARY for call ipmi_read_#t~ret194#1.base, ipmi_read_#t~ret194#1.offset := get_current(); srcloc: null [2023-11-19 05:18:34,933 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##70: assume !false; [2023-11-19 05:18:34,933 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##69: assume false; [2023-11-19 05:18:34,934 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##189: assume false; [2023-11-19 05:18:34,934 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##190: assume !false;call ULTIMATE.dealloc(ipmi_ioctl_~#val~0#1.base, ipmi_ioctl_~#val~0#1.offset);havoc ipmi_ioctl_~#val~0#1.base, ipmi_ioctl_~#val~0#1.offset; [2023-11-19 05:18:34,934 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##151: assume !false; [2023-11-19 05:18:34,934 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##150: assume false; [2023-11-19 05:18:34,934 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume !false; [2023-11-19 05:18:34,934 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##125: assume false; [2023-11-19 05:18:34,965 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:18:36,490 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:18:36,490 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 05:18:36,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:36 BoogieIcfgContainer [2023-11-19 05:18:36,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:18:36,511 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:18:36,512 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:18:36,516 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:18:36,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:17:37" (1/3) ... [2023-11-19 05:18:36,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e08956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:36, skipping insertion in model container [2023-11-19 05:18:36,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:40" (2/3) ... [2023-11-19 05:18:36,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e08956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:36, skipping insertion in model container [2023-11-19 05:18:36,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:36" (3/3) ... [2023-11-19 05:18:36,526 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-char-ipmi-ipmi_watchdog.ko.cil.out.i [2023-11-19 05:18:36,546 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:18:36,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:18:36,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:18:36,643 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=FINITE_AUTOMATA, 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;@3b6e9d65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:18:36,643 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:18:36,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 577 states, 381 states have (on average 1.4383202099737533) internal successors, (548), 400 states have internal predecessors, (548), 150 states have call successors, (150), 45 states have call predecessors, (150), 45 states have return successors, (150), 144 states have call predecessors, (150), 150 states have call successors, (150) [2023-11-19 05:18:36,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-19 05:18:36,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:18:36,672 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:18:36,672 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:18:36,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:18:36,679 INFO L85 PathProgramCache]: Analyzing trace with hash 674296918, now seen corresponding path program 1 times [2023-11-19 05:18:36,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:18:36,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271590286] [2023-11-19 05:18:36,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:36,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:18:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:18:38,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:18:38,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:18:38,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271590286] [2023-11-19 05:18:38,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271590286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:18:38,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:18:38,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:18:38,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244230801] [2023-11-19 05:18:38,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:18:38,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:18:38,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:18:38,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:18:38,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:18:38,580 INFO L87 Difference]: Start difference. First operand has 577 states, 381 states have (on average 1.4383202099737533) internal successors, (548), 400 states have internal predecessors, (548), 150 states have call successors, (150), 45 states have call predecessors, (150), 45 states have return successors, (150), 144 states have call predecessors, (150), 150 states have call successors, (150) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)