./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--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx --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 bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 20:57:00,922 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:57:01,001 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 20:57:01,007 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:57:01,008 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:57:01,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:57:01,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:57:01,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:57:01,055 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:57:01,056 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:57:01,057 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 20:57:01,057 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 20:57:01,058 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:57:01,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:57:01,059 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:57:01,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:57:01,061 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 20:57:01,061 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 20:57:01,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:57:01,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 20:57:01,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 20:57:01,086 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 20:57:01,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:57:01,087 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:57:01,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:57:01,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:57:01,089 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 20:57:01,089 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 20:57:01,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:57:01,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:57:01,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 20:57:01,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 20:57:01,091 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 20:57:01,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 20:57:01,092 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 20:57:01,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 20:57:01,093 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 20:57:01,093 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 20:57:01,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 20:57:01,094 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_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 [2023-11-21 20:57:01,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:57:01,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:57:01,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:57:01,421 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:57:01,426 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:57:01,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2023-11-21 20:57:04,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:57:05,336 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:57:05,337 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2023-11-21 20:57:05,404 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/data/206e1674d/b17efa7f097b49a98efd3b8852cd5ebc/FLAG6e45437c5 [2023-11-21 20:57:05,422 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/data/206e1674d/b17efa7f097b49a98efd3b8852cd5ebc [2023-11-21 20:57:05,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:57:05,436 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:57:05,438 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:57:05,439 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:57:05,444 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:57:05,445 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:57:05" (1/1) ... [2023-11-21 20:57:05,447 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ac7f00f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:05, skipping insertion in model container [2023-11-21 20:57:05,447 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:57:05" (1/1) ... [2023-11-21 20:57:05,636 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:57:08,575 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_e1672c24-1689-4f43-81aa-50ded181960b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2023-11-21 20:57:08,657 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:57:08,771 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:57:09,019 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"); [5920] [2023-11-21 20:57:09,022 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)); [5927] [2023-11-21 20:57:09,022 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 %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [5935-5936] [2023-11-21 20:57:09,038 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)); [6070] [2023-11-21 20:57:09,039 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; decl %0": "+m" (v->counter)); [6077] [2023-11-21 20:57:09,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [6180] [2023-11-21 20:57:09,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [6187] [2023-11-21 20:57:09,063 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)); [6416-6417] [2023-11-21 20:57:09,066 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)); [6445-6446] [2023-11-21 20:57:09,068 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" (84), "i" (12UL)); [6479-6480] [2023-11-21 20:57:09,070 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" (96), "i" (12UL)); [6503-6504] [2023-11-21 20:57:09,087 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/linux/netdevice.h"), "i" (507), "i" (12UL)); [6839-6840] [2023-11-21 20:57:09,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6845] [2023-11-21 20:57:09,190 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8805] [2023-11-21 20:57:09,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8861] [2023-11-21 20:57:09,200 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)skb->data) [8969] [2023-11-21 20:57:09,203 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)skb2->data) [9016] [2023-11-21 20:57:09,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [9060] [2023-11-21 20:57:09,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9406] [2023-11-21 20:57:09,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9412] [2023-11-21 20:57:09,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9430] [2023-11-21 20:57:09,359 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_e1672c24-1689-4f43-81aa-50ded181960b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2023-11-21 20:57:09,371 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:57:09,631 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:57:09,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:09 WrapperNode [2023-11-21 20:57:09,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:57:09,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:57:09,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:57:09,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:57:09,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:09" (1/1) ... [2023-11-21 20:57:09,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:09" (1/1) ... [2023-11-21 20:57:10,109 INFO L138 Inliner]: procedures = 409, calls = 2719, calls flagged for inlining = 209, calls inlined = 190, statements flattened = 6957 [2023-11-21 20:57:10,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:57:10,111 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:57:10,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:57:10,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:57:10,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:09" (1/1) ... [2023-11-21 20:57:10,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:09" (1/1) ... [2023-11-21 20:57:10,161 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:09" (1/1) ... [2023-11-21 20:57:11,870 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memcpy is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 20:57:11,870 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:09" (1/1) ... [2023-11-21 20:57:11,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:09" (1/1) ... [2023-11-21 20:57:12,056 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:09" (1/1) ... [2023-11-21 20:57:12,085 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:09" (1/1) ... [2023-11-21 20:57:12,122 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:09" (1/1) ... [2023-11-21 20:57:12,142 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:09" (1/1) ... [2023-11-21 20:57:12,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:57:12,206 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:57:12,206 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:57:12,207 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:57:12,208 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:09" (1/1) ... [2023-11-21 20:57:12,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:57:12,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:57:12,249 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 20:57:12,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 20:57:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_link_speed [2023-11-21 20:57:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_link_speed [2023-11-21 20:57:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-21 20:57:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-21 20:57:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 20:57:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 20:57:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-21 20:57:12,298 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-21 20:57:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_state_machine_work [2023-11-21 20:57:12,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_state_machine_work [2023-11-21 20:57:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2023-11-21 20:57:12,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2023-11-21 20:57:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-21 20:57:12,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-21 20:57:12,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 20:57:12,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 20:57:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2023-11-21 20:57:12,303 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2023-11-21 20:57:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-21 20:57:12,303 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-21 20:57:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure ql_this_adapter_controls_port [2023-11-21 20:57:12,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_this_adapter_controls_port [2023-11-21 20:57:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2023-11-21 20:57:12,304 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2023-11-21 20:57:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_interrupts [2023-11-21 20:57:12,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_interrupts [2023-11-21 20:57:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-21 20:57:12,304 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-21 20:57:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-21 20:57:12,305 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-21 20:57:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg_l [2023-11-21 20:57:12,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg_l [2023-11-21 20:57:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_send_free_list [2023-11-21 20:57:12,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_send_free_list [2023-11-21 20:57:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-21 20:57:12,306 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-21 20:57:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-21 20:57:12,306 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-21 20:57:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 20:57:12,306 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 20:57:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2023-11-21 20:57:12,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2023-11-21 20:57:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_set_mac_address [2023-11-21 20:57:12,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_set_mac_address [2023-11-21 20:57:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cycle_adapter [2023-11-21 20:57:12,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cycle_adapter [2023-11-21 20:57:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mac_cfg_soft_reset [2023-11-21 20:57:12,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mac_cfg_soft_reset [2023-11-21 20:57:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-21 20:57:12,309 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-21 20:57:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-21 20:57:12,310 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-21 20:57:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-21 20:57:12,310 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-21 20:57:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_disable_scan_mode [2023-11-21 20:57:12,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_disable_scan_mode [2023-11-21 20:57:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 20:57:12,311 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 20:57:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-21 20:57:12,312 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-21 20:57:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 20:57:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-21 20:57:12,312 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-21 20:57:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg_l [2023-11-21 20:57:12,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg_l [2023-11-21 20:57:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2023-11-21 20:57:12,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2023-11-21 20:57:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-21 20:57:12,314 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-21 20:57:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-21 20:57:12,314 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-21 20:57:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-21 20:57:12,315 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-21 20:57:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2023-11-21 20:57:12,315 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2023-11-21 20:57:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 20:57:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-21 20:57:12,316 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-21 20:57:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-21 20:57:12,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-21 20:57:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 20:57:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_5 [2023-11-21 20:57:12,317 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_5 [2023-11-21 20:57:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page1_reg [2023-11-21 20:57:12,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page1_reg [2023-11-21 20:57:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 20:57:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-21 20:57:12,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-21 20:57:12,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 20:57:12,318 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 20:57:12,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-21 20:57:12,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-21 20:57:12,319 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2023-11-21 20:57:12,319 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2023-11-21 20:57:12,319 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-21 20:57:12,319 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-21 20:57:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_register_page [2023-11-21 20:57:12,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_register_page [2023-11-21 20:57:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-21 20:57:12,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-21 20:57:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg_ex [2023-11-21 20:57:12,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg_ex [2023-11-21 20:57:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure ql_phy_init_ex [2023-11-21 20:57:12,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_phy_init_ex [2023-11-21 20:57:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-21 20:57:12,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-21 20:57:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg_l [2023-11-21 20:57:12,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg_l [2023-11-21 20:57:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg [2023-11-21 20:57:12,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg [2023-11-21 20:57:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 20:57:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2023-11-21 20:57:12,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2023-11-21 20:57:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page2_reg [2023-11-21 20:57:12,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page2_reg [2023-11-21 20:57:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 20:57:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_5 [2023-11-21 20:57:12,324 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_5 [2023-11-21 20:57:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg [2023-11-21 20:57:12,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg [2023-11-21 20:57:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-21 20:57:12,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-21 20:57:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 20:57:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg [2023-11-21 20:57:12,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg [2023-11-21 20:57:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2023-11-21 20:57:12,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2023-11-21 20:57:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_printk [2023-11-21 20:57:12,326 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_printk [2023-11-21 20:57:12,327 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-21 20:57:12,329 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-21 20:57:12,330 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_nvram_reg [2023-11-21 20:57:12,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_nvram_reg [2023-11-21 20:57:12,330 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-21 20:57:12,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-21 20:57:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-11-21 20:57:12,332 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-11-21 20:57:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_drvr_lock [2023-11-21 20:57:12,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_drvr_lock [2023-11-21 20:57:12,339 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2023-11-21 20:57:12,339 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2023-11-21 20:57:12,339 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_enable_scan_mode [2023-11-21 20:57:12,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_enable_scan_mode [2023-11-21 20:57:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2023-11-21 20:57:12,340 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2023-11-21 20:57:12,341 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_timeout_work [2023-11-21 20:57:12,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_timeout_work [2023-11-21 20:57:12,341 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-21 20:57:12,341 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-21 20:57:12,341 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-21 20:57:12,341 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-21 20:57:12,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:57:12,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:57:12,342 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_mii_ready [2023-11-21 20:57:12,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_mii_ready [2023-11-21 20:57:12,342 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-21 20:57:12,342 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-21 20:57:12,342 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_large_buffers [2023-11-21 20:57:12,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_large_buffers [2023-11-21 20:57:12,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 20:57:12,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 20:57:12,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 20:57:12,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 20:57:12,343 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-21 20:57:12,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-21 20:57:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-21 20:57:12,344 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-21 20:57:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2023-11-21 20:57:12,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2023-11-21 20:57:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-21 20:57:12,344 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-21 20:57:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-21 20:57:12,345 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-21 20:57:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg [2023-11-21 20:57:12,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg [2023-11-21 20:57:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 20:57:12,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 20:57:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-11-21 20:57:12,345 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-11-21 20:57:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-21 20:57:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-21 20:57:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure PHY_Setup [2023-11-21 20:57:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure PHY_Setup [2023-11-21 20:57:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 20:57:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 20:57:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_buffer_queues [2023-11-21 20:57:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_buffer_queues [2023-11-21 20:57:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 20:57:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 20:57:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-21 20:57:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-21 20:57:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-21 20:57:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-21 20:57:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-11-21 20:57:12,348 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-11-21 20:57:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-21 20:57:12,348 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-21 20:57:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 20:57:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-21 20:57:12,348 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-21 20:57:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 20:57:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-21 20:57:12,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-21 20:57:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2023-11-21 20:57:12,349 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2023-11-21 20:57:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 20:57:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2023-11-21 20:57:12,349 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2023-11-21 20:57:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 20:57:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 20:57:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2023-11-21 20:57:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2023-11-21 20:57:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2023-11-21 20:57:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2023-11-21 20:57:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-21 20:57:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-21 20:57:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-21 20:57:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-21 20:57:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page0_reg [2023-11-21 20:57:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page0_reg [2023-11-21 20:57:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-21 20:57:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-21 20:57:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_link_full_dup [2023-11-21 20:57:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_link_full_dup [2023-11-21 20:57:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure ql_reset_work [2023-11-21 20:57:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_reset_work [2023-11-21 20:57:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-21 20:57:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-21 20:57:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_tx_timeout [2023-11-21 20:57:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_tx_timeout [2023-11-21 20:57:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure ql_supported_modes [2023-11-21 20:57:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_supported_modes [2023-11-21 20:57:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2023-11-21 20:57:12,353 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2023-11-21 20:57:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-21 20:57:12,353 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-21 20:57:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_fiber [2023-11-21 20:57:12,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_fiber [2023-11-21 20:57:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2023-11-21 20:57:12,354 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2023-11-21 20:57:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 20:57:12,354 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 20:57:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_net_req_rsp_queues [2023-11-21 20:57:12,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_net_req_rsp_queues [2023-11-21 20:57:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 20:57:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-21 20:57:12,355 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-21 20:57:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 20:57:12,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 20:57:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg_ex [2023-11-21 20:57:12,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg_ex [2023-11-21 20:57:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2023-11-21 20:57:12,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2023-11-21 20:57:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-21 20:57:12,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-21 20:57:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure ql_port_start [2023-11-21 20:57:12,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_port_start [2023-11-21 20:57:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-21 20:57:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-21 20:57:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-21 20:57:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-21 20:57:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_auto_cfg_status [2023-11-21 20:57:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_auto_cfg_status [2023-11-21 20:57:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg [2023-11-21 20:57:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg [2023-11-21 20:57:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2023-11-21 20:57:12,363 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2023-11-21 20:57:12,364 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-21 20:57:12,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-21 20:57:12,364 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-21 20:57:12,364 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-21 20:57:12,364 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2023-11-21 20:57:12,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2023-11-21 20:57:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-21 20:57:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-21 20:57:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-21 20:57:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 20:57:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2023-11-21 20:57:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2023-11-21 20:57:13,331 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:57:13,336 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:57:13,703 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 20:57:19,842 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:57:26,001 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:57:26,002 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 20:57:26,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:57:26 BoogieIcfgContainer [2023-11-21 20:57:26,005 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:57:26,009 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 20:57:26,009 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 20:57:26,013 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 20:57:26,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:57:05" (1/3) ... [2023-11-21 20:57:26,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d8576e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:57:26, skipping insertion in model container [2023-11-21 20:57:26,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:09" (2/3) ... [2023-11-21 20:57:26,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d8576e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:57:26, skipping insertion in model container [2023-11-21 20:57:26,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:57:26" (3/3) ... [2023-11-21 20:57:26,017 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2023-11-21 20:57:26,039 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 20:57:26,039 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 20:57:26,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 20:57:26,150 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;@17daacd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 20:57:26,150 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 20:57:26,165 INFO L276 IsEmpty]: Start isEmpty. Operand has 2061 states, 1207 states have (on average 1.2808616404308202) internal successors, (1546), 1263 states have internal predecessors, (1546), 722 states have call successors, (722), 131 states have call predecessors, (722), 130 states have return successors, (712), 699 states have call predecessors, (712), 712 states have call successors, (712) [2023-11-21 20:57:26,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-21 20:57:26,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:57:26,225 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:57:26,226 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:57:26,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:57:26,232 INFO L85 PathProgramCache]: Analyzing trace with hash -2136679663, now seen corresponding path program 1 times [2023-11-21 20:57:26,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:57:26,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644095400] [2023-11-21 20:57:26,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:26,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:57:26,895 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 20:57:26,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [416180064] [2023-11-21 20:57:26,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:26,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:57:26,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:57:26,899 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:57:26,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 20:57:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:28,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 3428 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 20:57:28,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:57:28,563 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2023-11-21 20:57:28,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 20:57:28,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:57:28,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644095400] [2023-11-21 20:57:28,565 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 20:57:28,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416180064] [2023-11-21 20:57:28,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416180064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:57:28,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:57:28,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 20:57:28,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128976837] [2023-11-21 20:57:28,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:57:28,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:57:28,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:57:28,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:57:28,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:57:28,628 INFO L87 Difference]: Start difference. First operand has 2061 states, 1207 states have (on average 1.2808616404308202) internal successors, (1546), 1263 states have internal predecessors, (1546), 722 states have call successors, (722), 131 states have call predecessors, (722), 130 states have return successors, (712), 699 states have call predecessors, (712), 712 states have call successors, (712) Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-21 20:57:32,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:57:32,951 INFO L93 Difference]: Finished difference Result 5859 states and 8519 transitions. [2023-11-21 20:57:32,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:57:32,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2023-11-21 20:57:32,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:57:33,012 INFO L225 Difference]: With dead ends: 5859 [2023-11-21 20:57:33,012 INFO L226 Difference]: Without dead ends: 3784 [2023-11-21 20:57:33,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:57:33,040 INFO L413 NwaCegarLoop]: 2640 mSDtfsCounter, 2616 mSDsluCounter, 2522 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2616 SdHoareTripleChecker+Valid, 5162 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-21 20:57:33,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2616 Valid, 5162 Invalid, 712 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-21 20:57:33,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3784 states. [2023-11-21 20:57:33,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3784 to 3778. [2023-11-21 20:57:33,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3778 states, 2230 states have (on average 1.2681614349775785) internal successors, (2828), 2316 states have internal predecessors, (2828), 1306 states have call successors, (1306), 242 states have call predecessors, (1306), 241 states have return successors, (1305), 1276 states have call predecessors, (1305), 1305 states have call successors, (1305) [2023-11-21 20:57:33,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3778 states to 3778 states and 5439 transitions. [2023-11-21 20:57:33,383 INFO L78 Accepts]: Start accepts. Automaton has 3778 states and 5439 transitions. Word has length 168 [2023-11-21 20:57:33,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:57:33,384 INFO L495 AbstractCegarLoop]: Abstraction has 3778 states and 5439 transitions. [2023-11-21 20:57:33,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-21 20:57:33,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3778 states and 5439 transitions. [2023-11-21 20:57:33,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-11-21 20:57:33,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:57:33,407 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:57:33,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 20:57:33,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:57:33,621 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:57:33,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:57:33,622 INFO L85 PathProgramCache]: Analyzing trace with hash 344098991, now seen corresponding path program 1 times [2023-11-21 20:57:33,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:57:33,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981822882] [2023-11-21 20:57:33,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:33,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:57:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:34,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:57:34,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981822882] [2023-11-21 20:57:34,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-21 20:57:34,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520152347] [2023-11-21 20:57:34,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:34,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:57:34,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:57:34,248 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:57:34,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 20:57:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:35,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 4475 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 20:57:35,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:57:35,868 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2023-11-21 20:57:35,871 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 20:57:35,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520152347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:57:35,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:57:35,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 20:57:35,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385322978] [2023-11-21 20:57:35,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:57:35,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:57:35,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:57:35,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:57:35,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:57:35,876 INFO L87 Difference]: Start difference. First operand 3778 states and 5439 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2023-11-21 20:57:38,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:57:38,958 INFO L93 Difference]: Finished difference Result 7561 states and 10897 transitions. [2023-11-21 20:57:38,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:57:38,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 336 [2023-11-21 20:57:38,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:57:38,998 INFO L225 Difference]: With dead ends: 7561 [2023-11-21 20:57:38,998 INFO L226 Difference]: Without dead ends: 3804 [2023-11-21 20:57:39,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:57:39,027 INFO L413 NwaCegarLoop]: 2623 mSDtfsCounter, 10 mSDsluCounter, 2620 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 5243 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-21 20:57:39,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 5243 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-21 20:57:39,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3804 states. [2023-11-21 20:57:39,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3804 to 3780. [2023-11-21 20:57:39,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3780 states, 2232 states have (on average 1.267921146953405) internal successors, (2830), 2318 states have internal predecessors, (2830), 1306 states have call successors, (1306), 242 states have call predecessors, (1306), 241 states have return successors, (1305), 1276 states have call predecessors, (1305), 1305 states have call successors, (1305) [2023-11-21 20:57:39,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3780 states to 3780 states and 5441 transitions. [2023-11-21 20:57:39,251 INFO L78 Accepts]: Start accepts. Automaton has 3780 states and 5441 transitions. Word has length 336 [2023-11-21 20:57:39,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:57:39,254 INFO L495 AbstractCegarLoop]: Abstraction has 3780 states and 5441 transitions. [2023-11-21 20:57:39,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2023-11-21 20:57:39,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3780 states and 5441 transitions. [2023-11-21 20:57:39,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-11-21 20:57:39,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:57:39,282 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:57:39,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 20:57:39,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:57:39,505 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:57:39,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:57:39,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1225071916, now seen corresponding path program 1 times [2023-11-21 20:57:39,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:57:39,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213350005] [2023-11-21 20:57:39,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:39,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:57:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:39,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:57:39,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213350005] [2023-11-21 20:57:39,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-21 20:57:39,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470478602] [2023-11-21 20:57:39,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:39,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:57:39,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:57:39,934 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:57:39,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1672c24-1689-4f43-81aa-50ded181960b/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 20:57:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:41,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 4490 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 20:57:41,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:57:41,858 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-21 20:57:41,859 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 20:57:41,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470478602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:57:41,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:57:41,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 20:57:41,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985487970] [2023-11-21 20:57:41,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:57:41,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:57:41,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:57:41,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:57:41,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:57:41,864 INFO L87 Difference]: Start difference. First operand 3780 states and 5441 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2023-11-21 20:57:45,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []