./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--hp--hp100.ko-entry_point.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_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/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_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/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_a59c93fe-1499-41f3-8f2b-d207fa7197e3/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 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:51:42,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:51:42,350 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:51:42,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:51:42,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:51:42,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:51:42,398 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:51:42,399 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:51:42,400 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:51:42,405 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:51:42,405 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:51:42,407 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:51:42,407 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:51:42,409 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:51:42,409 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:51:42,410 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:51:42,410 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:51:42,411 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:51:42,411 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:51:42,412 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:51:42,412 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:51:42,413 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:51:42,414 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:51:42,415 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:51:42,415 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:51:42,416 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:51:42,416 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:51:42,417 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:51:42,417 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:51:42,417 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:51:42,419 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:51:42,419 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:51:42,420 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:51:42,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:51:42,420 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:51:42,420 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:51:42,421 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:51:42,421 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:51:42,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:51:42,422 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:51:42,422 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:51:42,422 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:51:42,423 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_a59c93fe-1499-41f3-8f2b-d207fa7197e3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 [2023-11-19 04:51:42,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:51:42,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:51:42,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:51:42,759 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:51:42,760 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:51:42,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2023-11-19 04:51:45,924 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:51:46,561 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:51:46,562 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2023-11-19 04:51:46,618 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/data/61cd78c0e/02593606d19b4ac3954dee55e131e738/FLAG3a3cb2142 [2023-11-19 04:51:46,636 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/data/61cd78c0e/02593606d19b4ac3954dee55e131e738 [2023-11-19 04:51:46,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:51:46,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:51:46,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:51:46,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:51:46,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:51:46,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:51:46" (1/1) ... [2023-11-19 04:51:46,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9e76f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:46, skipping insertion in model container [2023-11-19 04:51:46,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:51:46" (1/1) ... [2023-11-19 04:51:46,805 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:51:48,746 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_a59c93fe-1499-41f3-8f2b-d207fa7197e3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2023-11-19 04:51:48,817 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:51:48,880 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:51:49,007 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"); [5533] [2023-11-19 04:51:49,010 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)); [5540] [2023-11-19 04:51:49,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [5653] [2023-11-19 04:51:49,017 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5656] [2023-11-19 04:51:49,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5659] [2023-11-19 04:51:49,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5662] [2023-11-19 04:51:49,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5714] [2023-11-19 04:51:49,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5752] [2023-11-19 04:51:49,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5760] [2023-11-19 04:51:49,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [5767] [2023-11-19 04:51:49,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [5775] [2023-11-19 04:51:49,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5782] [2023-11-19 04:51:49,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5790] [2023-11-19 04:51:49,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsl": "+S" (addr), "+c" (count): "d" (port)); [5797] [2023-11-19 04:51:49,027 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insl": "+D" (addr), "+c" (count): "d" (port)); [5804] [2023-11-19 04:51:49,114 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)); [5947-5948] [2023-11-19 04:51:49,116 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)); [5976-5977] [2023-11-19 04:51:49,264 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_a59c93fe-1499-41f3-8f2b-d207fa7197e3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2023-11-19 04:51:49,273 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:51:49,481 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:51:49,481 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:51:49,482 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:51:49,490 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:51:49,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:49 WrapperNode [2023-11-19 04:51:49,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:51:49,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:51:49,493 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:51:49,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:51:49,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:49" (1/1) ... [2023-11-19 04:51:49,612 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:49" (1/1) ... [2023-11-19 04:51:49,861 INFO L138 Inliner]: procedures = 225, calls = 1511, calls flagged for inlining = 103, calls inlined = 100, statements flattened = 4441 [2023-11-19 04:51:49,861 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:51:49,862 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:51:49,862 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:51:49,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:51:49,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:49" (1/1) ... [2023-11-19 04:51:49,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:49" (1/1) ... [2023-11-19 04:51:49,893 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:49" (1/1) ... [2023-11-19 04:51:49,893 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:49" (1/1) ... [2023-11-19 04:51:49,992 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:49" (1/1) ... [2023-11-19 04:51:50,019 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:49" (1/1) ... [2023-11-19 04:51:50,039 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:49" (1/1) ... [2023-11-19 04:51:50,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:49" (1/1) ... [2023-11-19 04:51:50,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:51:50,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:51:50,117 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:51:50,117 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:51:50,118 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:49" (1/1) ... [2023-11-19 04:51:50,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:51:50,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:51:50,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:51:50,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:51:50,201 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2023-11-19 04:51:50,202 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2023-11-19 04:51:50,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:51:50,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:51:50,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:51:50,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:51:50,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:51:50,205 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:51:50,205 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-19 04:51:50,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-19 04:51:50,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 04:51:50,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 04:51:50,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:51:50,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:51:50,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 04:51:50,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 04:51:50,209 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 04:51:50,210 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 04:51:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 04:51:50,210 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 04:51:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:51:50,210 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:51:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:51:50,211 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:51:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2023-11-19 04:51:50,211 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2023-11-19 04:51:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2023-11-19 04:51:50,211 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2023-11-19 04:51:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2023-11-19 04:51:50,211 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2023-11-19 04:51:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 04:51:50,212 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 04:51:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:51:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 04:51:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 04:51:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2023-11-19 04:51:50,213 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2023-11-19 04:51:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-11-19 04:51:50,213 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-11-19 04:51:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:51:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_get_stats [2023-11-19 04:51:50,213 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_get_stats [2023-11-19 04:51:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 04:51:50,214 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 04:51:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-19 04:51:50,215 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-19 04:51:50,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-19 04:51:50,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-19 04:51:50,216 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 04:51:50,216 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 04:51:50,216 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 04:51:50,216 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 04:51:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:51:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-19 04:51:50,217 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-19 04:51:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:51:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2023-11-19 04:51:50,218 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2023-11-19 04:51:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:51:50,218 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:51:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-19 04:51:50,219 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-19 04:51:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-19 04:51:50,219 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-19 04:51:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:51:50,219 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:51:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-19 04:51:50,220 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-19 04:51:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:51:50,221 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:51:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 04:51:50,221 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 04:51:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-19 04:51:50,221 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-19 04:51:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2023-11-19 04:51:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2023-11-19 04:51:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2023-11-19 04:51:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2023-11-19 04:51:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:51:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 04:51:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 04:51:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:51:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2023-11-19 04:51:50,223 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2023-11-19 04:51:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-19 04:51:50,223 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-19 04:51:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:51:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 04:51:50,223 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 04:51:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 04:51:50,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 04:51:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:51:50,225 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:51:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2023-11-19 04:51:50,225 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2023-11-19 04:51:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2023-11-19 04:51:50,225 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2023-11-19 04:51:50,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 04:51:50,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 04:51:50,226 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2023-11-19 04:51:50,227 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2023-11-19 04:51:50,227 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-19 04:51:50,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-19 04:51:50,227 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 04:51:50,227 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 04:51:50,227 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2023-11-19 04:51:50,227 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2023-11-19 04:51:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:51:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 04:51:50,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 04:51:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure dev_consume_skb_any [2023-11-19 04:51:50,228 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_consume_skb_any [2023-11-19 04:51:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-19 04:51:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-19 04:51:50,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:51:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:51:50,229 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2023-11-19 04:51:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2023-11-19 04:51:50,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 04:51:50,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 04:51:50,230 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2023-11-19 04:51:50,230 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2023-11-19 04:51:50,230 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-19 04:51:50,231 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-19 04:51:50,231 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2023-11-19 04:51:50,231 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2023-11-19 04:51:50,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:51:50,232 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2023-11-19 04:51:50,233 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2023-11-19 04:51:50,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 04:51:50,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 04:51:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:51:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 04:51:50,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 04:51:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:51:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 04:51:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-19 04:51:50,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-19 04:51:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2023-11-19 04:51:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2023-11-19 04:51:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2023-11-19 04:51:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2023-11-19 04:51:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2023-11-19 04:51:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2023-11-19 04:51:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 04:51:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 04:51:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-19 04:51:50,247 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-19 04:51:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2023-11-19 04:51:50,247 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2023-11-19 04:51:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-19 04:51:50,247 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-19 04:51:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:51:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2023-11-19 04:51:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2023-11-19 04:51:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:51:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:51:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2023-11-19 04:51:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2023-11-19 04:51:50,249 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-11-19 04:51:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-11-19 04:51:50,922 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:51:50,926 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:51:51,772 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:51:55,050 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:51:55,503 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0 == ~tmp___4~7#1 % 18446744073709551616); [2023-11-19 04:51:55,503 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0 == ~tmp___4~7#1 % 18446744073709551616;#t~nondet728#1 := 0; [2023-11-19 04:51:55,503 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8188-2: assume 0 == #t~nondet728#1 % 18446744073709551616;havoc #t~nondet728#1; [2023-11-19 04:51:55,504 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8188-2: assume !(0 == #t~nondet728#1 % 18446744073709551616);havoc #t~nondet728#1; [2023-11-19 04:51:55,504 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8188: assume 2096896 == ~tmp___4~7#1 % 18446744073709551616;#t~nondet728#1 := ~tmp___4~7#1; [2023-11-19 04:51:55,504 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8188: assume !(2096896 == ~tmp___4~7#1 % 18446744073709551616);assume #t~nondet728#1 % 18446744073709551616 <= ~tmp___4~7#1 % 18446744073709551616;assume #t~nondet728#1 % 18446744073709551616 <= 2096896; [2023-11-19 04:51:55,504 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8188-4: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2023-11-19 04:51:55,504 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8188-4: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2023-11-19 04:51:55,505 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189-1: assume -9223372036854775808 <= #t~ret729#1 && #t~ret729#1 <= 9223372036854775807;havoc #t~ret729#1; [2023-11-19 04:51:55,505 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189: SUMMARY for call #t~ret729#1 := schedule_timeout_interruptible(1); srcloc: null [2023-11-19 04:51:55,652 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:51:57,777 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:51:57,777 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 04:51:57,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:51:57 BoogieIcfgContainer [2023-11-19 04:51:57,790 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:51:57,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:51:57,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:51:57,796 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:51:57,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:51:46" (1/3) ... [2023-11-19 04:51:57,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b348d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:51:57, skipping insertion in model container [2023-11-19 04:51:57,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:49" (2/3) ... [2023-11-19 04:51:57,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b348d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:51:57, skipping insertion in model container [2023-11-19 04:51:57,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:51:57" (3/3) ... [2023-11-19 04:51:57,798 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2023-11-19 04:51:57,817 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:51:57,817 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:51:57,912 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:51:57,920 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;@332251d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:51:57,920 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:51:57,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 1513 states, 862 states have (on average 1.3445475638051043) internal successors, (1159), 908 states have internal predecessors, (1159), 581 states have call successors, (581), 71 states have call predecessors, (581), 70 states have return successors, (574), 561 states have call predecessors, (574), 574 states have call successors, (574) [2023-11-19 04:51:57,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-19 04:51:57,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:57,970 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-19 04:51:57,971 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:51:57,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:57,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1544049624, now seen corresponding path program 1 times [2023-11-19 04:51:57,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:51:57,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691204138] [2023-11-19 04:51:57,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:57,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:51:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:59,200 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-11-19 04:51:59,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:51:59,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691204138] [2023-11-19 04:51:59,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691204138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:59,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:51:59,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:51:59,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069824017] [2023-11-19 04:51:59,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:59,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:51:59,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:51:59,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:51:59,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:51:59,261 INFO L87 Difference]: Start difference. First operand has 1513 states, 862 states have (on average 1.3445475638051043) internal successors, (1159), 908 states have internal predecessors, (1159), 581 states have call successors, (581), 71 states have call predecessors, (581), 70 states have return successors, (574), 561 states have call predecessors, (574), 574 states have call successors, (574) Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-19 04:52:02,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:02,608 INFO L93 Difference]: Finished difference Result 4481 states and 6928 transitions. [2023-11-19 04:52:02,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:52:02,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 132 [2023-11-19 04:52:02,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:02,674 INFO L225 Difference]: With dead ends: 4481 [2023-11-19 04:52:02,675 INFO L226 Difference]: Without dead ends: 2963 [2023-11-19 04:52:02,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:52:02,707 INFO L413 NwaCegarLoop]: 2670 mSDtfsCounter, 2260 mSDsluCounter, 7386 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2264 SdHoareTripleChecker+Valid, 10056 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:02,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2264 Valid, 10056 Invalid, 1065 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-19 04:52:02,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2963 states. [2023-11-19 04:52:03,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2963 to 2953. [2023-11-19 04:52:03,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 1687 states have (on average 1.3349140486069946) internal successors, (2252), 1761 states have internal predecessors, (2252), 1128 states have call successors, (1128), 139 states have call predecessors, (1128), 137 states have return successors, (1127), 1098 states have call predecessors, (1127), 1127 states have call successors, (1127) [2023-11-19 04:52:03,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4507 transitions. [2023-11-19 04:52:03,263 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4507 transitions. Word has length 132 [2023-11-19 04:52:03,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:03,265 INFO L495 AbstractCegarLoop]: Abstraction has 2953 states and 4507 transitions. [2023-11-19 04:52:03,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-19 04:52:03,266 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4507 transitions. [2023-11-19 04:52:03,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-19 04:52:03,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:03,288 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-19 04:52:03,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:52:03,289 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:52:03,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:03,290 INFO L85 PathProgramCache]: Analyzing trace with hash 639630485, now seen corresponding path program 1 times [2023-11-19 04:52:03,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:03,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556167699] [2023-11-19 04:52:03,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:03,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:03,966 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-11-19 04:52:03,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:03,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556167699] [2023-11-19 04:52:03,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556167699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:03,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:03,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:52:03,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408785569] [2023-11-19 04:52:03,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:03,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:52:03,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:03,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:52:03,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:52:03,971 INFO L87 Difference]: Start difference. First operand 2953 states and 4507 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-19 04:52:07,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:07,137 INFO L93 Difference]: Finished difference Result 5902 states and 9007 transitions. [2023-11-19 04:52:07,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:52:07,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 134 [2023-11-19 04:52:07,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:07,166 INFO L225 Difference]: With dead ends: 5902 [2023-11-19 04:52:07,166 INFO L226 Difference]: Without dead ends: 2968 [2023-11-19 04:52:07,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:52:07,188 INFO L413 NwaCegarLoop]: 2404 mSDtfsCounter, 2235 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2239 SdHoareTripleChecker+Valid, 9238 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:07,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2239 Valid, 9238 Invalid, 955 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-19 04:52:07,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2023-11-19 04:52:07,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 2958. [2023-11-19 04:52:07,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2958 states, 1691 states have (on average 1.3341218214074513) internal successors, (2256), 1765 states have internal predecessors, (2256), 1128 states have call successors, (1128), 140 states have call predecessors, (1128), 138 states have return successors, (1127), 1098 states have call predecessors, (1127), 1127 states have call successors, (1127) [2023-11-19 04:52:07,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 4511 transitions. [2023-11-19 04:52:07,464 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 4511 transitions. Word has length 134 [2023-11-19 04:52:07,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:07,467 INFO L495 AbstractCegarLoop]: Abstraction has 2958 states and 4511 transitions. [2023-11-19 04:52:07,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-19 04:52:07,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 4511 transitions. [2023-11-19 04:52:07,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-19 04:52:07,475 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:07,475 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-19 04:52:07,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:52:07,476 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:52:07,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:07,476 INFO L85 PathProgramCache]: Analyzing trace with hash -906377873, now seen corresponding path program 1 times [2023-11-19 04:52:07,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:07,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135754742] [2023-11-19 04:52:07,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:07,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:08,118 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-11-19 04:52:08,118 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:08,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135754742] [2023-11-19 04:52:08,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135754742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:08,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:08,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:52:08,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888356821] [2023-11-19 04:52:08,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:08,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:52:08,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:08,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:52:08,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:52:08,122 INFO L87 Difference]: Start difference. First operand 2958 states and 4511 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-19 04:52:10,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:10,850 INFO L93 Difference]: Finished difference Result 5912 states and 9014 transitions. [2023-11-19 04:52:10,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:52:10,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 133 [2023-11-19 04:52:10,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:10,884 INFO L225 Difference]: With dead ends: 5912 [2023-11-19 04:52:10,884 INFO L226 Difference]: Without dead ends: 2973 [2023-11-19 04:52:10,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:52:10,915 INFO L413 NwaCegarLoop]: 2406 mSDtfsCounter, 2235 mSDsluCounter, 6838 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2239 SdHoareTripleChecker+Valid, 9244 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:10,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2239 Valid, 9244 Invalid, 955 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-19 04:52:10,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2973 states. [2023-11-19 04:52:11,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2973 to 2963. [2023-11-19 04:52:11,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2963 states, 1695 states have (on average 1.3333333333333333) internal successors, (2260), 1769 states have internal predecessors, (2260), 1128 states have call successors, (1128), 141 states have call predecessors, (1128), 139 states have return successors, (1127), 1098 states have call predecessors, (1127), 1127 states have call successors, (1127) [2023-11-19 04:52:11,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2963 states to 2963 states and 4515 transitions. [2023-11-19 04:52:11,204 INFO L78 Accepts]: Start accepts. Automaton has 2963 states and 4515 transitions. Word has length 133 [2023-11-19 04:52:11,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:11,205 INFO L495 AbstractCegarLoop]: Abstraction has 2963 states and 4515 transitions. [2023-11-19 04:52:11,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-19 04:52:11,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2963 states and 4515 transitions. [2023-11-19 04:52:11,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-19 04:52:11,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:11,213 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-19 04:52:11,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:52:11,213 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:52:11,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:11,214 INFO L85 PathProgramCache]: Analyzing trace with hash -864309550, now seen corresponding path program 1 times [2023-11-19 04:52:11,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:11,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713151796] [2023-11-19 04:52:11,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:11,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:11,808 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-11-19 04:52:11,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:11,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713151796] [2023-11-19 04:52:11,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713151796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:11,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:11,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:52:11,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206255796] [2023-11-19 04:52:11,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:11,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:52:11,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:11,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:52:11,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:52:11,811 INFO L87 Difference]: Start difference. First operand 2963 states and 4515 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-19 04:52:15,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:15,322 INFO L93 Difference]: Finished difference Result 7249 states and 11049 transitions. [2023-11-19 04:52:15,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:52:15,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 131 [2023-11-19 04:52:15,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:15,370 INFO L225 Difference]: With dead ends: 7249 [2023-11-19 04:52:15,371 INFO L226 Difference]: Without dead ends: 4305 [2023-11-19 04:52:15,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:52:15,400 INFO L413 NwaCegarLoop]: 2878 mSDtfsCounter, 2031 mSDsluCounter, 7784 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 10662 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:15,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 10662 Invalid, 1126 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1123 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-19 04:52:15,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4305 states. [2023-11-19 04:52:15,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4305 to 4273. [2023-11-19 04:52:16,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4273 states, 2438 states have (on average 1.3359310910582445) internal successors, (3257), 2545 states have internal predecessors, (3257), 1634 states have call successors, (1634), 203 states have call predecessors, (1634), 200 states have return successors, (1633), 1587 states have call predecessors, (1633), 1633 states have call successors, (1633) [2023-11-19 04:52:16,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4273 states to 4273 states and 6524 transitions. [2023-11-19 04:52:16,062 INFO L78 Accepts]: Start accepts. Automaton has 4273 states and 6524 transitions. Word has length 131 [2023-11-19 04:52:16,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:16,063 INFO L495 AbstractCegarLoop]: Abstraction has 4273 states and 6524 transitions. [2023-11-19 04:52:16,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-19 04:52:16,064 INFO L276 IsEmpty]: Start isEmpty. Operand 4273 states and 6524 transitions. [2023-11-19 04:52:16,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-19 04:52:16,082 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:16,082 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-19 04:52:16,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:52:16,083 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:52:16,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:16,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1956498828, now seen corresponding path program 1 times [2023-11-19 04:52:16,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:16,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106987988] [2023-11-19 04:52:16,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:16,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:16,933 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-19 04:52:16,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:16,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106987988] [2023-11-19 04:52:16,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106987988] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:52:16,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277426237] [2023-11-19 04:52:16,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:16,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:52:16,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:52:16,941 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:52:16,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:52:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:17,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 2164 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:52:18,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:52:18,068 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2023-11-19 04:52:18,069 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:52:18,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277426237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:18,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 04:52:18,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-11-19 04:52:18,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079335302] [2023-11-19 04:52:18,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:18,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:52:18,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:18,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:52:18,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:52:18,072 INFO L87 Difference]: Start difference. First operand 4273 states and 6524 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 04:52:19,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:19,517 INFO L93 Difference]: Finished difference Result 7235 states and 11046 transitions. [2023-11-19 04:52:19,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:52:19,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2023-11-19 04:52:19,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:19,561 INFO L225 Difference]: With dead ends: 7235 [2023-11-19 04:52:19,561 INFO L226 Difference]: Without dead ends: 4291 [2023-11-19 04:52:19,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:52:19,584 INFO L413 NwaCegarLoop]: 2064 mSDtfsCounter, 7 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4123 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:19,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4123 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 04:52:19,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4291 states. [2023-11-19 04:52:19,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4291 to 4275. [2023-11-19 04:52:19,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4275 states, 2440 states have (on average 1.335655737704918) internal successors, (3259), 2547 states have internal predecessors, (3259), 1634 states have call successors, (1634), 203 states have call predecessors, (1634), 200 states have return successors, (1633), 1587 states have call predecessors, (1633), 1633 states have call successors, (1633) [2023-11-19 04:52:20,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 6526 transitions. [2023-11-19 04:52:20,019 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 6526 transitions. Word has length 144 [2023-11-19 04:52:20,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:20,024 INFO L495 AbstractCegarLoop]: Abstraction has 4275 states and 6526 transitions. [2023-11-19 04:52:20,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 04:52:20,024 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 6526 transitions. [2023-11-19 04:52:20,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-19 04:52:20,037 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:20,037 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-19 04:52:20,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:52:20,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:52:20,264 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:52:20,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:20,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1134948001, now seen corresponding path program 1 times [2023-11-19 04:52:20,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:20,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916420567] [2023-11-19 04:52:20,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:20,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:20,453 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:52:20,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [637824114] [2023-11-19 04:52:20,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:20,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:52:20,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:52:20,455 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:52:20,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 04:52:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:21,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 2207 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 04:52:21,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:52:21,580 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-19 04:52:21,580 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:52:21,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:21,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916420567] [2023-11-19 04:52:21,581 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 04:52:21,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637824114] [2023-11-19 04:52:21,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637824114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:21,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:21,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:52:21,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113634564] [2023-11-19 04:52:21,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:21,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 04:52:21,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:21,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 04:52:21,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:52:21,584 INFO L87 Difference]: Start difference. First operand 4275 states and 6526 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 04:52:25,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:25,903 INFO L93 Difference]: Finished difference Result 10036 states and 15313 transitions. [2023-11-19 04:52:25,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 04:52:25,904 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2023-11-19 04:52:25,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:26,006 INFO L225 Difference]: With dead ends: 10036 [2023-11-19 04:52:26,006 INFO L226 Difference]: Without dead ends: 7090 [2023-11-19 04:52:26,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-19 04:52:26,036 INFO L413 NwaCegarLoop]: 2640 mSDtfsCounter, 2270 mSDsluCounter, 12597 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2274 SdHoareTripleChecker+Valid, 15237 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:26,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2274 Valid, 15237 Invalid, 1642 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-19 04:52:26,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7090 states. [2023-11-19 04:52:26,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7090 to 7057. [2023-11-19 04:52:26,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7057 states, 4029 states have (on average 1.3373045420699925) internal successors, (5388), 4211 states have internal predecessors, (5388), 2696 states have call successors, (2696), 334 states have call predecessors, (2696), 331 states have return successors, (2700), 2614 states have call predecessors, (2700), 2695 states have call successors, (2700) [2023-11-19 04:52:26,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7057 states to 7057 states and 10784 transitions. [2023-11-19 04:52:26,777 INFO L78 Accepts]: Start accepts. Automaton has 7057 states and 10784 transitions. Word has length 149 [2023-11-19 04:52:26,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:26,778 INFO L495 AbstractCegarLoop]: Abstraction has 7057 states and 10784 transitions. [2023-11-19 04:52:26,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 04:52:26,778 INFO L276 IsEmpty]: Start isEmpty. Operand 7057 states and 10784 transitions. [2023-11-19 04:52:26,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-19 04:52:26,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:26,799 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 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] [2023-11-19 04:52:26,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a59c93fe-1499-41f3-8f2b-d207fa7197e3/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0