./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--dec--tulip--dmfe.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/bin/utaipan-verify-mE87zJ7Ire --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 246ceae3084839b9b339f99ac0b8607f0cf18f3fcdd140edc02c2b8d150b0ed6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:28:52,678 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:28:52,825 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:28:52,834 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:28:52,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:28:52,883 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:28:52,884 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:28:52,884 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:28:52,886 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:28:52,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:28:52,893 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:28:52,894 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:28:52,895 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:28:52,897 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:28:52,898 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:28:52,898 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:28:52,899 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:28:52,899 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:28:52,900 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:28:52,901 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:28:52,901 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:28:52,902 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:28:52,903 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:28:52,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:28:52,904 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:28:52,905 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:28:52,905 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:28:52,906 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:28:52,906 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:28:52,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:28:52,908 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:28:52,909 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:28:52,909 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:28:52,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:28:52,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:28:52,910 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:28:52,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:28:52,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:28:52,912 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:28:52,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:28:52,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:28:52,913 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:28:52,913 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:28:52,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:28:52,914 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_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 246ceae3084839b9b339f99ac0b8607f0cf18f3fcdd140edc02c2b8d150b0ed6 [2023-11-23 21:28:53,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:28:53,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:28:53,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:28:53,306 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:28:53,306 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:28:53,308 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2023-11-23 21:28:56,687 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:28:57,346 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:28:57,347 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2023-11-23 21:28:57,402 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/bin/utaipan-verify-mE87zJ7Ire/data/e8c062884/401baf486d764e6e9839e73eaa92ca44/FLAG91b085e12 [2023-11-23 21:28:57,419 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/bin/utaipan-verify-mE87zJ7Ire/data/e8c062884/401baf486d764e6e9839e73eaa92ca44 [2023-11-23 21:28:57,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:28:57,425 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:28:57,426 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:28:57,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:28:57,434 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:28:57,435 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:28:57" (1/1) ... [2023-11-23 21:28:57,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@282e50cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:57, skipping insertion in model container [2023-11-23 21:28:57,437 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:28:57" (1/1) ... [2023-11-23 21:28:57,654 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:28:59,834 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_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i[261928,261941] [2023-11-23 21:28:59,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:00,001 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:29:00,206 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"); [5603] [2023-11-23 21:29:00,231 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)); [5934-5935] [2023-11-23 21:29:00,235 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)); [5963-5964] [2023-11-23 21:29:00,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7206] [2023-11-23 21:29:00,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7495] [2023-11-23 21:29:00,452 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_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i[261928,261941] [2023-11-23 21:29:00,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:00,725 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:29:00,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:00 WrapperNode [2023-11-23 21:29:00,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:00,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:00,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:29:00,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:29:00,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:00" (1/1) ... [2023-11-23 21:29:00,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:00" (1/1) ... [2023-11-23 21:29:01,286 INFO L138 Inliner]: procedures = 236, calls = 1628, calls flagged for inlining = 116, calls inlined = 113, statements flattened = 5135 [2023-11-23 21:29:01,287 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:01,288 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:29:01,288 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:29:01,288 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:29:01,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:00" (1/1) ... [2023-11-23 21:29:01,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:00" (1/1) ... [2023-11-23 21:29:01,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:00" (1/1) ... [2023-11-23 21:29:01,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:00" (1/1) ... [2023-11-23 21:29:01,489 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:00" (1/1) ... [2023-11-23 21:29:01,518 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:00" (1/1) ... [2023-11-23 21:29:01,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:00" (1/1) ... [2023-11-23 21:29:01,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:00" (1/1) ... [2023-11-23 21:29:01,618 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:29:01,619 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:29:01,620 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:29:01,620 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:29:01,621 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:00" (1/1) ... [2023-11-23 21:29:01,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:01,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:01,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:29:01,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6335fd-42b1-442f-8fd6-2cac18e9c91c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:29:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2023-11-23 21:29:01,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2023-11-23 21:29:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:29:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:29:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:29:01,710 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:29:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:29:01,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:29:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:29:01,711 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:29:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-23 21:29:01,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-23 21:29:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_set_filter_mode [2023-11-23 21:29:01,712 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_set_filter_mode [2023-11-23 21:29:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:29:01,713 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:29:01,713 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-23 21:29:01,713 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-23 21:29:01,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:29:01,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:29:01,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:29:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:29:01,715 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_resume [2023-11-23 21:29:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_resume [2023-11-23 21:29:01,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:29:01,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:29:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_write_1bit [2023-11-23 21:29:01,717 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_write_1bit [2023-11-23 21:29:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 21:29:01,717 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 21:29:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-23 21:29:01,718 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-23 21:29:01,719 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:29:01,719 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:29:01,719 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-23 21:29:01,719 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-23 21:29:01,719 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-23 21:29:01,720 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-23 21:29:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:29:01,720 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:29:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:29:01,720 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:29:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-23 21:29:01,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-23 21:29:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:29:01,721 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:29:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-23 21:29:01,721 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-23 21:29:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-23 21:29:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-23 21:29:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2023-11-23 21:29:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2023-11-23 21:29:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_reuse_skb [2023-11-23 21:29:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_reuse_skb [2023-11-23 21:29:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2023-11-23 21:29:01,723 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2023-11-23 21:29:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:29:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-11-23 21:29:01,725 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-11-23 21:29:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:29:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 21:29:01,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 21:29:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-23 21:29:01,726 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-23 21:29:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 21:29:01,727 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 21:29:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-23 21:29:01,727 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-23 21:29:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 21:29:01,728 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 21:29:01,728 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:29:01,728 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:29:01,728 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2023-11-23 21:29:01,728 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2023-11-23 21:29:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_read_1bit [2023-11-23 21:29:01,729 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_read_1bit [2023-11-23 21:29:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:29:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:29:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:29:01,729 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:29:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_init_dm910x [2023-11-23 21:29:01,730 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_init_dm910x [2023-11-23 21:29:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-23 21:29:01,731 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-23 21:29:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:29:01,731 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:29:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure poll_dmfe [2023-11-23 21:29:01,732 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_dmfe [2023-11-23 21:29:01,732 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_write [2023-11-23 21:29:01,732 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_write [2023-11-23 21:29:01,732 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:29:01,732 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:29:01,733 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2023-11-23 21:29:01,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2023-11-23 21:29:01,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:29:01,733 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:29:01,733 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:29:01,733 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2023-11-23 21:29:01,734 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2023-11-23 21:29:01,734 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2023-11-23 21:29:01,734 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2023-11-23 21:29:01,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:29:01,734 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_remove_one [2023-11-23 21:29:01,735 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_remove_one [2023-11-23 21:29:01,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:29:01,735 INFO L130 BoogieDeclarations]: Found specification of procedure dm9132_id_table [2023-11-23 21:29:01,736 INFO L138 BoogieDeclarations]: Found implementation of procedure dm9132_id_table [2023-11-23 21:29:01,736 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:29:01,737 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:29:01,737 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:29:01,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:29:01,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:29:01,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:29:01,738 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_interrupt [2023-11-23 21:29:01,739 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_interrupt [2023-11-23 21:29:01,739 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-23 21:29:01,739 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-23 21:29:01,739 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2023-11-23 21:29:01,739 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2023-11-23 21:29:01,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:29:01,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:29:01,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:29:01,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:29:01,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:29:01,740 INFO L130 BoogieDeclarations]: Found specification of procedure cal_CRC [2023-11-23 21:29:01,741 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_CRC [2023-11-23 21:29:01,741 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2023-11-23 21:29:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2023-11-23 21:29:01,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:29:01,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:29:01,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:29:01,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:29:01,743 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2023-11-23 21:29:01,744 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2023-11-23 21:29:01,744 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2023-11-23 21:29:01,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2023-11-23 21:29:01,744 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:29:01,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:29:01,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:29:01,745 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2023-11-23 21:29:01,745 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2023-11-23 21:29:01,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 21:29:01,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 21:29:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-23 21:29:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-23 21:29:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2023-11-23 21:29:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2023-11-23 21:29:01,751 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_read [2023-11-23 21:29:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_read [2023-11-23 21:29:01,751 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-23 21:29:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-23 21:29:01,752 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_free_rxbuffer [2023-11-23 21:29:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_free_rxbuffer [2023-11-23 21:29:01,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-23 21:29:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-23 21:29:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-23 21:29:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-23 21:29:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 21:29:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 21:29:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:29:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:29:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:29:02,640 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:29:02,645 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:29:03,206 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:29:07,532 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:29:11,845 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:29:11,845 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:29:11,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:11 BoogieIcfgContainer [2023-11-23 21:29:11,848 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:29:11,854 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:29:11,854 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:29:11,858 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:29:11,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:28:57" (1/3) ... [2023-11-23 21:29:11,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a6f864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:11, skipping insertion in model container [2023-11-23 21:29:11,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:00" (2/3) ... [2023-11-23 21:29:11,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a6f864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:11, skipping insertion in model container [2023-11-23 21:29:11,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:11" (3/3) ... [2023-11-23 21:29:11,867 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2023-11-23 21:29:11,896 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:29:11,896 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:29:12,023 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:29:12,032 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;@463a9106, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:29:12,036 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:29:12,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 1135 states, 692 states have (on average 1.333815028901734) internal successors, (923), 715 states have internal predecessors, (923), 369 states have call successors, (369), 73 states have call predecessors, (369), 72 states have return successors, (362), 356 states have call predecessors, (362), 362 states have call successors, (362) [2023-11-23 21:29:12,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-23 21:29:12,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:12,119 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-23 21:29:12,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:12,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:12,128 INFO L85 PathProgramCache]: Analyzing trace with hash 128152330, now seen corresponding path program 1 times [2023-11-23 21:29:12,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:12,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688164580] [2023-11-23 21:29:12,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:12,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:13,993 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-23 21:29:13,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:13,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688164580] [2023-11-23 21:29:13,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688164580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:13,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:13,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:29:13,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961928624] [2023-11-23 21:29:14,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:14,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:29:14,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:14,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:29:14,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:29:14,066 INFO L87 Difference]: Start difference. First operand has 1135 states, 692 states have (on average 1.333815028901734) internal successors, (923), 715 states have internal predecessors, (923), 369 states have call successors, (369), 73 states have call predecessors, (369), 72 states have return successors, (362), 356 states have call predecessors, (362), 362 states have call successors, (362) 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, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 21:29:17,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:19,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:23,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:23,341 INFO L93 Difference]: Finished difference Result 3370 states and 4957 transitions. [2023-11-23 21:29:23,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:29:23,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 119 [2023-11-23 21:29:23,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:23,395 INFO L225 Difference]: With dead ends: 3370 [2023-11-23 21:29:23,395 INFO L226 Difference]: Without dead ends: 2220 [2023-11-23 21:29:23,408 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 [2023-11-23 21:29:23,412 INFO L413 NwaCegarLoop]: 1958 mSDtfsCounter, 1630 mSDsluCounter, 5316 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 7274 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:23,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 7274 Invalid, 1116 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1112 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2023-11-23 21:29:23,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2023-11-23 21:29:23,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 2205. [2023-11-23 21:29:23,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2205 states, 1353 states have (on average 1.3215077605321508) internal successors, (1788), 1386 states have internal predecessors, (1788), 710 states have call successors, (710), 142 states have call predecessors, (710), 141 states have return successors, (709), 692 states have call predecessors, (709), 709 states have call successors, (709) [2023-11-23 21:29:23,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 3207 transitions. [2023-11-23 21:29:23,687 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 3207 transitions. Word has length 119 [2023-11-23 21:29:23,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:23,688 INFO L495 AbstractCegarLoop]: Abstraction has 2205 states and 3207 transitions. [2023-11-23 21:29:23,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 21:29:23,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 3207 transitions. [2023-11-23 21:29:23,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-23 21:29:23,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:23,705 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-23 21:29:23,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:29:23,705 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:23,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:23,706 INFO L85 PathProgramCache]: Analyzing trace with hash 278961104, now seen corresponding path program 1 times [2023-11-23 21:29:23,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:23,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600862596] [2023-11-23 21:29:23,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:23,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:24,327 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-23 21:29:24,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:24,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600862596] [2023-11-23 21:29:24,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600862596] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:24,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:24,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:29:24,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647505564] [2023-11-23 21:29:24,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:24,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:29:24,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:24,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:29:24,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:29:24,336 INFO L87 Difference]: Start difference. First operand 2205 states and 3207 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, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 21:29:26,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:28,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:30,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:34,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:34,222 INFO L93 Difference]: Finished difference Result 4625 states and 6691 transitions. [2023-11-23 21:29:34,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:29:34,223 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, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 120 [2023-11-23 21:29:34,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:34,254 INFO L225 Difference]: With dead ends: 4625 [2023-11-23 21:29:34,254 INFO L226 Difference]: Without dead ends: 3315 [2023-11-23 21:29:34,262 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 [2023-11-23 21:29:34,263 INFO L413 NwaCegarLoop]: 1577 mSDtfsCounter, 1598 mSDsluCounter, 4527 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 6104 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:34,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1602 Valid, 6104 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 983 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2023-11-23 21:29:34,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3315 states. [2023-11-23 21:29:34,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3315 to 3295. [2023-11-23 21:29:34,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3295 states, 2025 states have (on average 1.3219753086419752) internal successors, (2677), 2072 states have internal predecessors, (2677), 1058 states have call successors, (1058), 212 states have call predecessors, (1058), 211 states have return successors, (1057), 1034 states have call predecessors, (1057), 1057 states have call successors, (1057) [2023-11-23 21:29:34,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3295 states to 3295 states and 4792 transitions. [2023-11-23 21:29:34,482 INFO L78 Accepts]: Start accepts. Automaton has 3295 states and 4792 transitions. Word has length 120 [2023-11-23 21:29:34,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:34,483 INFO L495 AbstractCegarLoop]: Abstraction has 3295 states and 4792 transitions. [2023-11-23 21:29:34,484 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, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 21:29:34,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3295 states and 4792 transitions. [2023-11-23 21:29:34,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-23 21:29:34,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:34,498 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-23 21:29:34,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:29:34,504 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:34,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:34,504 INFO L85 PathProgramCache]: Analyzing trace with hash 858915239, now seen corresponding path program 1 times [2023-11-23 21:29:34,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:34,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350064829] [2023-11-23 21:29:34,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:34,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:35,202 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-23 21:29:35,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:35,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350064829] [2023-11-23 21:29:35,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350064829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:35,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:35,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:29:35,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121408019] [2023-11-23 21:29:35,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:35,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:29:35,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:35,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:29:35,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:29:35,210 INFO L87 Difference]: Start difference. First operand 3295 states and 4792 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 21:29:36,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:37,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:39,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []