./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--packetengines--hamachi.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e669f41d-263f-462b-9f17-5b632b7c7314/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e669f41d-263f-462b-9f17-5b632b7c7314/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_e669f41d-263f-462b-9f17-5b632b7c7314/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e669f41d-263f-462b-9f17-5b632b7c7314/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--packetengines--hamachi.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e669f41d-263f-462b-9f17-5b632b7c7314/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_e669f41d-263f-462b-9f17-5b632b7c7314/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 375c8b791fa06d541fb014bd5076ab9979e5fb4b76e2515aaac1f292cd2a1d79 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:22:01,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:22:02,012 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e669f41d-263f-462b-9f17-5b632b7c7314/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:22:02,020 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:22:02,021 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:22:02,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:22:02,072 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:22:02,072 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:22:02,073 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:22:02,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:22:02,075 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:22:02,075 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:22:02,076 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:22:02,077 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:22:02,077 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:22:02,078 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:22:02,078 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:22:02,079 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:22:02,079 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:22:02,080 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:22:02,081 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:22:02,082 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:22:02,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:22:02,083 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:22:02,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:22:02,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:22:02,096 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:22:02,097 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:22:02,097 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:22:02,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:22:02,099 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:22:02,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:22:02,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:22:02,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:22:02,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:22:02,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:22:02,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:22:02,101 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:22:02,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:22:02,102 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:22:02,103 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:22:02,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:22:02,103 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_e669f41d-263f-462b-9f17-5b632b7c7314/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e669f41d-263f-462b-9f17-5b632b7c7314/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 375c8b791fa06d541fb014bd5076ab9979e5fb4b76e2515aaac1f292cd2a1d79 [2023-11-19 05:22:02,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:22:02,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:22:02,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:22:02,445 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:22:02,445 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:22:02,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e669f41d-263f-462b-9f17-5b632b7c7314/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i [2023-11-19 05:22:05,600 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:22:06,223 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:22:06,224 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e669f41d-263f-462b-9f17-5b632b7c7314/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i [2023-11-19 05:22:06,284 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e669f41d-263f-462b-9f17-5b632b7c7314/bin/utaipan-verify-t7M7D8N6sZ/data/fd38da7e3/1a4e702396e94368813fa5a58f233bc3/FLAG16136414b [2023-11-19 05:22:06,306 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e669f41d-263f-462b-9f17-5b632b7c7314/bin/utaipan-verify-t7M7D8N6sZ/data/fd38da7e3/1a4e702396e94368813fa5a58f233bc3 [2023-11-19 05:22:06,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:22:06,314 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:22:06,316 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:22:06,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:22:06,322 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:22:06,323 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:22:06" (1/1) ... [2023-11-19 05:22:06,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a856a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:06, skipping insertion in model container [2023-11-19 05:22:06,324 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:22:06" (1/1) ... [2023-11-19 05:22:06,472 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:22:08,316 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_e669f41d-263f-462b-9f17-5b632b7c7314/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i[258653,258666] [2023-11-19 05:22:08,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:22:08,432 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:22:08,592 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"); [5574] [2023-11-19 05:22:08,594 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)); [5581] [2023-11-19 05:22:08,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [5752] [2023-11-19 05:22:08,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5760] [2023-11-19 05:22:08,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5768] [2023-11-19 05:22:08,606 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [5775] [2023-11-19 05:22:08,606 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5782] [2023-11-19 05:22:08,606 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5789] [2023-11-19 05:22:08,621 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)); [5980-5981] [2023-11-19 05:22:08,625 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)); [6009-6010] [2023-11-19 05:22:08,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (108), "i" (12UL)); [6039-6040] [2023-11-19 05:22:08,628 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" (120), "i" (12UL)); [6069-6070] [2023-11-19 05:22:08,834 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_e669f41d-263f-462b-9f17-5b632b7c7314/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i[258653,258666] [2023-11-19 05:22:08,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:22:09,062 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:22:09,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:09 WrapperNode [2023-11-19 05:22:09,063 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:22:09,064 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:22:09,065 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:22:09,065 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:22:09,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:09" (1/1) ... [2023-11-19 05:22:09,192 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:09" (1/1) ... [2023-11-19 05:22:09,387 INFO L138 Inliner]: procedures = 226, calls = 1496, calls flagged for inlining = 121, calls inlined = 118, statements flattened = 4314 [2023-11-19 05:22:09,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:22:09,388 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:22:09,388 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:22:09,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:22:09,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:09" (1/1) ... [2023-11-19 05:22:09,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:09" (1/1) ... [2023-11-19 05:22:09,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:09" (1/1) ... [2023-11-19 05:22:09,434 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:09" (1/1) ... [2023-11-19 05:22:09,543 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:09" (1/1) ... [2023-11-19 05:22:09,561 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:09" (1/1) ... [2023-11-19 05:22:09,580 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:09" (1/1) ... [2023-11-19 05:22:09,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:09" (1/1) ... [2023-11-19 05:22:09,627 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:22:09,628 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:22:09,629 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:22:09,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:22:09,630 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:09" (1/1) ... [2023-11-19 05:22:09,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:22:09,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e669f41d-263f-462b-9f17-5b632b7c7314/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:22:09,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e669f41d-263f-462b-9f17-5b632b7c7314/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:22:09,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e669f41d-263f-462b-9f17-5b632b7c7314/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:22:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_drvinfo [2023-11-19 05:22:09,714 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_drvinfo [2023-11-19 05:22:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_running [2023-11-19 05:22:09,714 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_running [2023-11-19 05:22:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:22:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:22:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 05:22:09,715 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 05:22:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:22:09,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:22:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:22:09,716 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:22:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-19 05:22:09,716 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-19 05:22:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 05:22:09,716 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 05:22:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 05:22:09,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 05:22:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:22:09,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:22:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2023-11-19 05:22:09,717 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2023-11-19 05:22:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 05:22:09,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 05:22:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 05:22:09,718 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 05:22:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 05:22:09,719 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 05:22:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:22:09,719 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:22:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:22:09,719 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:22:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 05:22:09,720 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 05:22:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-19 05:22:09,720 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-19 05:22:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 05:22:09,720 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 05:22:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:22:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 05:22:09,721 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 05:22:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-11-19 05:22:09,721 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-11-19 05:22:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:22:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-19 05:22:09,721 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-19 05:22:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 05:22:09,722 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 05:22:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 05:22:09,722 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 05:22:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-19 05:22:09,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-19 05:22:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 05:22:09,723 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 05:22:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:22:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-19 05:22:09,723 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-19 05:22:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:22:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:22:09,724 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:22:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-19 05:22:09,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-19 05:22:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-19 05:22:09,724 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-19 05:22:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 05:22:09,725 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 05:22:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 05:22:09,725 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 05:22:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:22:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 05:22:09,726 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 05:22:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:22:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-19 05:22:09,726 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-19 05:22:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:22:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-19 05:22:09,727 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-19 05:22:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 05:22:09,727 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 05:22:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 05:22:09,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 05:22:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_ioctl [2023-11-19 05:22:09,727 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_ioctl [2023-11-19 05:22:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 05:22:09,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 05:22:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 05:22:09,728 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 05:22:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:22:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 05:22:09,729 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 05:22:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:22:09,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:22:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 05:22:09,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 05:22:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:22:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 05:22:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 05:22:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:22:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 05:22:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 05:22:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:22:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-19 05:22:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-19 05:22:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_stats [2023-11-19 05:22:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_stats [2023-11-19 05:22:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-19 05:22:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-19 05:22:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 05:22:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 05:22:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_tx_timeout [2023-11-19 05:22:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_tx_timeout [2023-11-19 05:22:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 05:22:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 05:22:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 05:22:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 05:22:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-11-19 05:22:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-11-19 05:22:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 05:22:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 05:22:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 05:22:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 05:22:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:22:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-11-19 05:22:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-11-19 05:22:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-19 05:22:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-19 05:22:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-19 05:22:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-19 05:22:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2023-11-19 05:22:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2023-11-19 05:22:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:22:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:22:10,485 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:22:10,493 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:22:11,582 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:22:14,033 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:22:16,128 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:22:16,130 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:22:16,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:22:16 BoogieIcfgContainer [2023-11-19 05:22:16,149 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:22:16,152 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:22:16,153 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:22:16,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:22:16,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:22:06" (1/3) ... [2023-11-19 05:22:16,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e41c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:22:16, skipping insertion in model container [2023-11-19 05:22:16,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:09" (2/3) ... [2023-11-19 05:22:16,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e41c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:22:16, skipping insertion in model container [2023-11-19 05:22:16,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:22:16" (3/3) ... [2023-11-19 05:22:16,168 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i [2023-11-19 05:22:16,189 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:22:16,189 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:22:16,297 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:22:16,305 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;@3785f230, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:22:16,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:22:16,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 970 states, 590 states have (on average 1.347457627118644) internal successors, (795), 618 states have internal predecessors, (795), 321 states have call successors, (321), 58 states have call predecessors, (321), 57 states have return successors, (313), 303 states have call predecessors, (313), 313 states have call successors, (313) [2023-11-19 05:22:16,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-19 05:22:16,346 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:16,347 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-11-19 05:22:16,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:22:16,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:16,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1861085193, now seen corresponding path program 1 times [2023-11-19 05:22:16,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:16,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019037197] [2023-11-19 05:22:16,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:16,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:17,515 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-11-19 05:22:17,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:17,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019037197] [2023-11-19 05:22:17,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019037197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:17,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:17,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:22:17,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271974625] [2023-11-19 05:22:17,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:17,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:22:17,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:17,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:22:17,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:22:17,576 INFO L87 Difference]: Start difference. First operand has 970 states, 590 states have (on average 1.347457627118644) internal successors, (795), 618 states have internal predecessors, (795), 321 states have call successors, (321), 58 states have call predecessors, (321), 57 states have return successors, (313), 303 states have call predecessors, (313), 313 states have call successors, (313) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:22:20,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:22,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:25,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:27,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:27,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:27,301 INFO L93 Difference]: Finished difference Result 2463 states and 3611 transitions. [2023-11-19 05:22:27,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:22:27,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2023-11-19 05:22:27,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:27,373 INFO L225 Difference]: With dead ends: 2463 [2023-11-19 05:22:27,373 INFO L226 Difference]: Without dead ends: 1485 [2023-11-19 05:22:27,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:22:27,402 INFO L413 NwaCegarLoop]: 1265 mSDtfsCounter, 789 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:27,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 2429 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 383 Invalid, 4 Unknown, 0 Unchecked, 9.4s Time] [2023-11-19 05:22:27,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2023-11-19 05:22:27,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1480. [2023-11-19 05:22:27,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 920 states have (on average 1.317391304347826) internal successors, (1212), 947 states have internal predecessors, (1212), 459 states have call successors, (459), 101 states have call predecessors, (459), 100 states have return successors, (458), 444 states have call predecessors, (458), 458 states have call successors, (458) [2023-11-19 05:22:27,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 2129 transitions. [2023-11-19 05:22:27,685 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 2129 transitions. Word has length 120 [2023-11-19 05:22:27,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:27,686 INFO L495 AbstractCegarLoop]: Abstraction has 1480 states and 2129 transitions. [2023-11-19 05:22:27,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:22:27,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 2129 transitions. [2023-11-19 05:22:27,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-19 05:22:27,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:27,701 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-11-19 05:22:27,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:22:27,702 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:22:27,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:27,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1473048156, now seen corresponding path program 1 times [2023-11-19 05:22:27,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:27,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673358682] [2023-11-19 05:22:27,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:27,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:28,739 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-11-19 05:22:28,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:28,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673358682] [2023-11-19 05:22:28,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673358682] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:28,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:28,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:22:28,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825422852] [2023-11-19 05:22:28,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:28,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:22:28,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:28,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:22:28,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:22:28,748 INFO L87 Difference]: Start difference. First operand 1480 states and 2129 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-19 05:22:31,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:33,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:35,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:39,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:41,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:43,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:45,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:45,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:45,300 INFO L93 Difference]: Finished difference Result 4334 states and 6223 transitions. [2023-11-19 05:22:45,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:22:45,301 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 135 [2023-11-19 05:22:45,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:45,332 INFO L225 Difference]: With dead ends: 4334 [2023-11-19 05:22:45,332 INFO L226 Difference]: Without dead ends: 2878 [2023-11-19 05:22:45,342 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 05:22:45,348 INFO L413 NwaCegarLoop]: 1239 mSDtfsCounter, 1248 mSDsluCounter, 3677 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 4916 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:45,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 4916 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 650 Invalid, 7 Unknown, 0 Unchecked, 16.3s Time] [2023-11-19 05:22:45,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2023-11-19 05:22:45,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2862. [2023-11-19 05:22:45,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2862 states, 1796 states have (on average 1.3173719376391981) internal successors, (2366), 1846 states have internal predecessors, (2366), 866 states have call successors, (866), 200 states have call predecessors, (866), 199 states have return successors, (865), 840 states have call predecessors, (865), 865 states have call successors, (865) [2023-11-19 05:22:45,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2862 states to 2862 states and 4097 transitions. [2023-11-19 05:22:45,555 INFO L78 Accepts]: Start accepts. Automaton has 2862 states and 4097 transitions. Word has length 135 [2023-11-19 05:22:45,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:45,556 INFO L495 AbstractCegarLoop]: Abstraction has 2862 states and 4097 transitions. [2023-11-19 05:22:45,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-19 05:22:45,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2862 states and 4097 transitions. [2023-11-19 05:22:45,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-19 05:22:45,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:45,566 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-11-19 05:22:45,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:22:45,566 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:22:45,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:45,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1057255020, now seen corresponding path program 1 times [2023-11-19 05:22:45,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:45,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817918290] [2023-11-19 05:22:45,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:45,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:46,315 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-11-19 05:22:46,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:46,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817918290] [2023-11-19 05:22:46,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817918290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:46,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:46,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:22:46,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795264110] [2023-11-19 05:22:46,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:46,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:22:46,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:46,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:22:46,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:22:46,323 INFO L87 Difference]: Start difference. First operand 2862 states and 4097 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-19 05:22:49,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:51,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:53,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:55,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:57,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:59,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:23:01,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []