./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--target--sbp--sbp_target.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59704eb-a119-40fe-ad5e-b76c88323307/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59704eb-a119-40fe-ad5e-b76c88323307/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_c59704eb-a119-40fe-ad5e-b76c88323307/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59704eb-a119-40fe-ad5e-b76c88323307/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--target--sbp--sbp_target.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59704eb-a119-40fe-ad5e-b76c88323307/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_c59704eb-a119-40fe-ad5e-b76c88323307/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 aaf1d771ac3b5c1ee5469ce53dcb9ae85a178368868569822ee5e312f0a622d5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:15:17,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:15:17,983 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59704eb-a119-40fe-ad5e-b76c88323307/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:15:17,989 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:15:17,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:15:18,014 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:15:18,015 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:15:18,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:15:18,016 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:15:18,017 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:15:18,018 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:15:18,018 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:15:18,019 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:15:18,019 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:15:18,020 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:15:18,020 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:15:18,021 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:15:18,022 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:15:18,022 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:15:18,023 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:15:18,023 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:15:18,024 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:15:18,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:15:18,026 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:15:18,026 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:15:18,027 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:15:18,027 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:15:18,028 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:15:18,028 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:15:18,029 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:15:18,029 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:15:18,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:15:18,030 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:15:18,031 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:15:18,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:18,032 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:15:18,032 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:15:18,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:15:18,033 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:15:18,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:15:18,034 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:15:18,034 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:15:18,035 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:15:18,035 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:15:18,035 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_c59704eb-a119-40fe-ad5e-b76c88323307/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59704eb-a119-40fe-ad5e-b76c88323307/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aaf1d771ac3b5c1ee5469ce53dcb9ae85a178368868569822ee5e312f0a622d5 [2023-11-23 21:15:18,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:15:18,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:15:18,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:15:18,342 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:15:18,344 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:15:18,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59704eb-a119-40fe-ad5e-b76c88323307/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--target--sbp--sbp_target.ko-entry_point.cil.out.i [2023-11-23 21:15:21,464 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:15:22,232 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:15:22,233 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59704eb-a119-40fe-ad5e-b76c88323307/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--target--sbp--sbp_target.ko-entry_point.cil.out.i [2023-11-23 21:15:22,302 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59704eb-a119-40fe-ad5e-b76c88323307/bin/utaipan-verify-mE87zJ7Ire/data/5c505ae73/a74d9bf38f4d4c0ba29ad35cec86f74c/FLAGd3d81728b [2023-11-23 21:15:22,317 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59704eb-a119-40fe-ad5e-b76c88323307/bin/utaipan-verify-mE87zJ7Ire/data/5c505ae73/a74d9bf38f4d4c0ba29ad35cec86f74c [2023-11-23 21:15:22,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:15:22,322 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:15:22,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:15:22,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:15:22,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:15:22,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:15:22" (1/1) ... [2023-11-23 21:15:22,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c9991b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:22, skipping insertion in model container [2023-11-23 21:15:22,331 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:15:22" (1/1) ... [2023-11-23 21:15:22,553 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:15:23,327 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [7208] [2023-11-23 21:15:23,328 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [7209-7210] [2023-11-23 21:15:24,061 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_c59704eb-a119-40fe-ad5e-b76c88323307/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--target--sbp--sbp_target.ko-entry_point.cil.out.i[225756,225769] [2023-11-23 21:15:25,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:15:25,526 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:15:25,845 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [7208] [2023-11-23 21:15:25,846 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [7209-7210] [2023-11-23 21:15:25,849 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [7292] [2023-11-23 21:15:25,856 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; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [7384-7385] [2023-11-23 21:15:25,857 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; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [7396-7397] [2023-11-23 21:15:25,857 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; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [7400-7401] [2023-11-23 21:15:25,858 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; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [7404-7405] [2023-11-23 21:15:25,858 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; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [7408-7409] [2023-11-23 21:15:25,880 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_c59704eb-a119-40fe-ad5e-b76c88323307/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--target--sbp--sbp_target.ko-entry_point.cil.out.i[225756,225769] [2023-11-23 21:15:25,992 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/5011/dscv_tempdir/dscv/ri/43_2a/drivers/target/sbp/sbp_target.o.c.prepared"), "i" (981), "i" (12UL)); [8919-8920] [2023-11-23 21:15:26,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:15:26,373 WARN L675 CHandler]: The function strstr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:15:26,373 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:15:26,373 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:15:26,382 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:15:26,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:26 WrapperNode [2023-11-23 21:15:26,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:15:26,385 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:15:26,385 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:15:26,385 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:15:26,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:26" (1/1) ... [2023-11-23 21:15:26,537 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:26" (1/1) ... [2023-11-23 21:15:26,754 INFO L138 Inliner]: procedures = 276, calls = 2193, calls flagged for inlining = 108, calls inlined = 97, statements flattened = 5051 [2023-11-23 21:15:26,755 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:15:26,757 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:15:26,757 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:15:26,757 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:15:26,768 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:26" (1/1) ... [2023-11-23 21:15:26,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:26" (1/1) ... [2023-11-23 21:15:26,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:26" (1/1) ... [2023-11-23 21:15:26,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:26" (1/1) ... [2023-11-23 21:15:27,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:26" (1/1) ... [2023-11-23 21:15:27,093 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:26" (1/1) ... [2023-11-23 21:15:27,132 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:26" (1/1) ... [2023-11-23 21:15:27,157 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:26" (1/1) ... [2023-11-23 21:15:27,194 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:15:27,196 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:15:27,196 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:15:27,196 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:15:27,197 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:26" (1/1) ... [2023-11-23 21:15:27,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:27,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59704eb-a119-40fe-ad5e-b76c88323307/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:15:27,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59704eb-a119-40fe-ad5e-b76c88323307/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:15:27,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59704eb-a119-40fe-ad5e-b76c88323307/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:15:27,277 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-23 21:15:27,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-23 21:15:27,277 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_shutdown_session [2023-11-23 21:15:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_shutdown_session [2023-11-23 21:15:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_session_release [2023-11-23 21:15:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_session_release [2023-11-23 21:15:27,278 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-23 21:15:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-23 21:15:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_mgt_agent_process [2023-11-23 21:15:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_mgt_agent_process [2023-11-23 21:15:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:15:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_tag [2023-11-23 21:15:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_tag [2023-11-23 21:15:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:15:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:15:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:15:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_post_link_lun [2023-11-23 21:15:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_post_link_lun [2023-11-23 21:15:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_fabric_proto_ident [2023-11-23 21:15:27,281 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_fabric_proto_ident [2023-11-23 21:15:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_pr_transport_id_len [2023-11-23 21:15:27,281 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_pr_transport_id_len [2023-11-23 21:15:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:15:27,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:15:27,282 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_queue_status [2023-11-23 21:15:27,282 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_queue_status [2023-11-23 21:15:27,282 INFO L130 BoogieDeclarations]: Found specification of procedure read_peer_guid [2023-11-23 21:15:27,282 INFO L138 BoogieDeclarations]: Found implementation of procedure read_peer_guid [2023-11-23 21:15:27,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:15:27,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:15:27,283 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_queue_data_in [2023-11-23 21:15:27,283 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_queue_data_in [2023-11-23 21:15:27,283 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_queue_tm_rsp [2023-11-23 21:15:27,284 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_queue_tm_rsp [2023-11-23 21:15:27,284 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_drop_tport [2023-11-23 21:15:27,284 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_drop_tport [2023-11-23 21:15:27,284 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_aborted_task [2023-11-23 21:15:27,284 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_aborted_task [2023-11-23 21:15:27,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:15:27,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:15:27,285 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_make_tpg [2023-11-23 21:15:27,285 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_make_tpg [2023-11-23 21:15:27,285 INFO L130 BoogieDeclarations]: Found specification of procedure sbp2_pointer_to_addr [2023-11-23 21:15:27,285 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp2_pointer_to_addr [2023-11-23 21:15:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_management_request_login [2023-11-23 21:15:27,286 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_management_request_login [2023-11-23 21:15:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:15:27,286 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:15:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_agent_process_work [2023-11-23 21:15:27,287 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_agent_process_work [2023-11-23 21:15:27,287 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:15:27,287 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:15:27,287 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-23 21:15:27,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-23 21:15:27,288 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_pr_transport_id [2023-11-23 21:15:27,288 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_pr_transport_id [2023-11-23 21:15:27,288 INFO L130 BoogieDeclarations]: Found specification of procedure get_jiffies_64 [2023-11-23 21:15:27,288 INFO L138 BoogieDeclarations]: Found implementation of procedure get_jiffies_64 [2023-11-23 21:15:27,288 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_drop_tpg [2023-11-23 21:15:27,289 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_drop_tpg [2023-11-23 21:15:27,289 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_close_session [2023-11-23 21:15:27,289 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_close_session [2023-11-23 21:15:27,289 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-11-23 21:15:27,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-11-23 21:15:27,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:15:27,290 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:15:27,290 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:15:27,290 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:15:27,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:15:27,290 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_management_request_reconnect [2023-11-23 21:15:27,291 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_management_request_reconnect [2023-11-23 21:15:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_login_release [2023-11-23 21:15:27,291 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_login_release [2023-11-23 21:15:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-23 21:15:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 21:15:27,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 21:15:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_make_nodeacl [2023-11-23 21:15:27,292 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_make_nodeacl [2023-11-23 21:15:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2023-11-23 21:15:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_release_cmd [2023-11-23 21:15:27,292 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_release_cmd [2023-11-23 21:15:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_agent_check_active [2023-11-23 21:15:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_agent_check_active [2023-11-23 21:15:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_pre_unlink_lun [2023-11-23 21:15:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_pre_unlink_lun [2023-11-23 21:15:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:15:27,294 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_drop_nodeacl [2023-11-23 21:15:27,294 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_drop_nodeacl [2023-11-23 21:15:27,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:15:27,294 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:15:27,294 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:15:27,295 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_fetch_command [2023-11-23 21:15:27,295 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_fetch_command [2023-11-23 21:15:27,295 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-11-23 21:15:27,295 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-11-23 21:15:27,295 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-23 21:15:27,296 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-23 21:15:27,296 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 21:15:27,296 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 21:15:27,296 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:15:27,296 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:15:27,296 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-23 21:15:27,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-23 21:15:27,297 INFO L130 BoogieDeclarations]: Found specification of procedure session_check_for_reset [2023-11-23 21:15:27,297 INFO L138 BoogieDeclarations]: Found implementation of procedure session_check_for_reset [2023-11-23 21:15:27,297 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-23 21:15:27,297 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-23 21:15:27,298 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 21:15:27,298 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 21:15:27,298 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-11-23 21:15:27,298 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-11-23 21:15:27,298 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_agent_fetch_work [2023-11-23 21:15:27,298 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_agent_fetch_work [2023-11-23 21:15:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:15:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_format_wwn [2023-11-23 21:15:27,299 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_format_wwn [2023-11-23 21:15:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 21:15:27,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 21:15:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_set_default_node_attrs [2023-11-23 21:15:27,300 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_set_default_node_attrs [2023-11-23 21:15:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 21:15:27,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 21:15:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_task_tag [2023-11-23 21:15:27,300 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_task_tag [2023-11-23 21:15:27,301 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_management_agent_unregister [2023-11-23 21:15:27,301 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_management_agent_unregister [2023-11-23 21:15:27,301 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-23 21:15:27,301 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-23 21:15:27,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:15:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure session_maintenance_work [2023-11-23 21:15:27,302 INFO L138 BoogieDeclarations]: Found implementation of procedure session_maintenance_work [2023-11-23 21:15:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_check_true [2023-11-23 21:15:27,302 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_check_true [2023-11-23 21:15:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:15:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_fabric_name [2023-11-23 21:15:27,303 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_fabric_name [2023-11-23 21:15:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure fw_card_put [2023-11-23 21:15:27,303 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_card_put [2023-11-23 21:15:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure addr_to_sbp2_pointer [2023-11-23 21:15:27,303 INFO L138 BoogieDeclarations]: Found implementation of procedure addr_to_sbp2_pointer [2023-11-23 21:15:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:15:27,304 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:15:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_run_transaction [2023-11-23 21:15:27,304 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_run_transaction [2023-11-23 21:15:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure session_reconnect_expired [2023-11-23 21:15:27,305 INFO L138 BoogieDeclarations]: Found implementation of procedure session_reconnect_expired [2023-11-23 21:15:27,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:15:27,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:15:27,305 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_send_status [2023-11-23 21:15:27,305 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_send_status [2023-11-23 21:15:27,306 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:15:27,306 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:15:27,306 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_parse_pr_out_transport_id [2023-11-23 21:15:27,306 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_parse_pr_out_transport_id [2023-11-23 21:15:27,306 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-23 21:15:27,306 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-23 21:15:27,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:15:27,307 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-23 21:15:27,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-23 21:15:27,307 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_make_tport [2023-11-23 21:15:27,307 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_make_tport [2023-11-23 21:15:27,307 INFO L130 BoogieDeclarations]: Found specification of procedure fw_core_add_address_handler [2023-11-23 21:15:27,308 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_core_add_address_handler [2023-11-23 21:15:27,308 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_handle_command [2023-11-23 21:15:27,308 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_handle_command [2023-11-23 21:15:27,308 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-23 21:15:27,308 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-23 21:15:27,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:15:27,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:15:27,309 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_release_fabric_acl [2023-11-23 21:15:27,309 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_release_fabric_acl [2023-11-23 21:15:27,309 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_sess_get_index [2023-11-23 21:15:27,309 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_sess_get_index [2023-11-23 21:15:27,309 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_login_find_by_id [2023-11-23 21:15:27,310 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_login_find_by_id [2023-11-23 21:15:27,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:15:27,310 INFO L130 BoogieDeclarations]: Found specification of procedure fw_card_get [2023-11-23 21:15:27,310 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_card_get [2023-11-23 21:15:27,310 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_rw_data [2023-11-23 21:15:27,310 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_rw_data [2023-11-23 21:15:27,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:15:27,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:15:27,311 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:15:27,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:15:27,311 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_fetch_page_table [2023-11-23 21:15:27,311 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_fetch_page_table [2023-11-23 21:15:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_send_sense [2023-11-23 21:15:27,312 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_send_sense [2023-11-23 21:15:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_free_request [2023-11-23 21:15:27,312 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_free_request [2023-11-23 21:15:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_parse_wwn [2023-11-23 21:15:27,312 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_parse_wwn [2023-11-23 21:15:27,313 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 21:15:27,313 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 21:15:27,313 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_management_request_logout [2023-11-23 21:15:27,313 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_management_request_logout [2023-11-23 21:15:27,313 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_fabric_wwn [2023-11-23 21:15:27,313 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_fabric_wwn [2023-11-23 21:15:27,314 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2023-11-23 21:15:27,314 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2023-11-23 21:15:27,314 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_run_request_transaction [2023-11-23 21:15:27,314 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_run_request_transaction [2023-11-23 21:15:27,314 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2023-11-23 21:15:27,314 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2023-11-23 21:15:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-23 21:15:27,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-23 21:15:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_update_unit_directory [2023-11-23 21:15:27,315 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_update_unit_directory [2023-11-23 21:15:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:15:27,315 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:15:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_default_depth [2023-11-23 21:15:27,316 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_default_depth [2023-11-23 21:15:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_login_count_all_by_lun [2023-11-23 21:15:27,316 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_login_count_all_by_lun [2023-11-23 21:15:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_check_false [2023-11-23 21:15:27,316 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_check_false [2023-11-23 21:15:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 21:15:27,317 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 21:15:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-23 21:15:27,317 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-23 21:15:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_write_pending_status [2023-11-23 21:15:27,317 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_write_pending_status [2023-11-23 21:15:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_tpg_get_inst_index [2023-11-23 21:15:27,318 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_tpg_get_inst_index [2023-11-23 21:15:27,318 INFO L130 BoogieDeclarations]: Found specification of procedure fw_core_remove_address_handler [2023-11-23 21:15:27,318 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_core_remove_address_handler [2023-11-23 21:15:27,318 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_get_cmd_state [2023-11-23 21:15:27,319 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_get_cmd_state [2023-11-23 21:15:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:15:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_alloc_fabric_acl [2023-11-23 21:15:27,319 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_alloc_fabric_acl [2023-11-23 21:15:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-11-23 21:15:27,319 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-11-23 21:15:27,320 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_count_se_tpg_luns [2023-11-23 21:15:27,320 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_count_se_tpg_luns [2023-11-23 21:15:27,320 INFO L130 BoogieDeclarations]: Found specification of procedure fw_card_release [2023-11-23 21:15:27,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:15:27,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:15:27,320 INFO L130 BoogieDeclarations]: Found specification of procedure sbp_check_stop_free [2023-11-23 21:15:27,321 INFO L138 BoogieDeclarations]: Found implementation of procedure sbp_check_stop_free [2023-11-23 21:15:27,321 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2023-11-23 21:15:27,321 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2023-11-23 21:15:27,321 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:15:27,321 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:15:28,180 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:15:28,190 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:15:28,942 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:15:36,401 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:15:38,302 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:15:38,303 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:15:38,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:38 BoogieIcfgContainer [2023-11-23 21:15:38,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:15:38,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:15:38,310 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:15:38,314 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:15:38,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:15:22" (1/3) ... [2023-11-23 21:15:38,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ffad83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:38, skipping insertion in model container [2023-11-23 21:15:38,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:26" (2/3) ... [2023-11-23 21:15:38,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ffad83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:38, skipping insertion in model container [2023-11-23 21:15:38,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:38" (3/3) ... [2023-11-23 21:15:38,319 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--target--sbp--sbp_target.ko-entry_point.cil.out.i [2023-11-23 21:15:38,344 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:15:38,348 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:15:38,477 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:15:38,486 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;@32fda803, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:15:38,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:15:38,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 1678 states, 1020 states have (on average 1.3431372549019607) internal successors, (1370), 1058 states have internal predecessors, (1370), 545 states have call successors, (545), 112 states have call predecessors, (545), 111 states have return successors, (536), 521 states have call predecessors, (536), 536 states have call successors, (536) [2023-11-23 21:15:38,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-23 21:15:38,541 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:38,542 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:15:38,543 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:15:38,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:38,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1596074334, now seen corresponding path program 1 times [2023-11-23 21:15:38,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:38,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154179155] [2023-11-23 21:15:38,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:38,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:39,518 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-23 21:15:39,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:39,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154179155] [2023-11-23 21:15:39,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154179155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:39,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:39,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:15:39,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038169099] [2023-11-23 21:15:39,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:39,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:39,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:39,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:39,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:39,564 INFO L87 Difference]: Start difference. First operand has 1678 states, 1020 states have (on average 1.3431372549019607) internal successors, (1370), 1058 states have internal predecessors, (1370), 545 states have call successors, (545), 112 states have call predecessors, (545), 111 states have return successors, (536), 521 states have call predecessors, (536), 536 states have call successors, (536) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-23 21:15:41,995 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 21:15:44,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:15:47,350 WARN L539 Checker$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 21:15:49,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:15:51,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:15:53,499 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 [] [2023-11-23 21:15:54,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:54,531 INFO L93 Difference]: Finished difference Result 4906 states and 7320 transitions. [2023-11-23 21:15:54,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:15:54,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 177 [2023-11-23 21:15:54,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:54,619 INFO L225 Difference]: With dead ends: 4906 [2023-11-23 21:15:54,619 INFO L226 Difference]: Without dead ends: 3248 [2023-11-23 21:15:54,641 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 [2023-11-23 21:15:54,649 INFO L413 NwaCegarLoop]: 2265 mSDtfsCounter, 2386 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2386 SdHoareTripleChecker+Valid, 4461 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:54,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2386 Valid, 4461 Invalid, 373 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 365 Invalid, 6 Unknown, 0 Unchecked, 14.4s Time] [2023-11-23 21:15:54,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3248 states. [2023-11-23 21:15:55,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3248 to 3244. [2023-11-23 21:15:55,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3244 states, 1987 states have (on average 1.3356819325616507) internal successors, (2654), 2042 states have internal predecessors, (2654), 1036 states have call successors, (1036), 221 states have call predecessors, (1036), 220 states have return successors, (1035), 1004 states have call predecessors, (1035), 1035 states have call successors, (1035) [2023-11-23 21:15:55,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3244 states to 3244 states and 4725 transitions. [2023-11-23 21:15:55,117 INFO L78 Accepts]: Start accepts. Automaton has 3244 states and 4725 transitions. Word has length 177 [2023-11-23 21:15:55,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:55,126 INFO L495 AbstractCegarLoop]: Abstraction has 3244 states and 4725 transitions. [2023-11-23 21:15:55,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-23 21:15:55,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3244 states and 4725 transitions. [2023-11-23 21:15:55,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-23 21:15:55,148 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:55,148 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:15:55,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:15:55,149 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:15:55,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:55,150 INFO L85 PathProgramCache]: Analyzing trace with hash 594487012, now seen corresponding path program 1 times [2023-11-23 21:15:55,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:55,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833410244] [2023-11-23 21:15:55,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:55,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:55,675 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-23 21:15:55,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:55,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833410244] [2023-11-23 21:15:55,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833410244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:55,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:55,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:15:55,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691238076] [2023-11-23 21:15:55,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:55,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:55,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:55,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:55,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:55,684 INFO L87 Difference]: Start difference. First operand 3244 states and 4725 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-23 21:15:58,047 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 [] [2023-11-23 21:16:00,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:03,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:05,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:07,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:09,756 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 [] [2023-11-23 21:16:10,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:10,516 INFO L93 Difference]: Finished difference Result 9612 states and 13993 transitions. [2023-11-23 21:16:10,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:10,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 181 [2023-11-23 21:16:10,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:10,577 INFO L225 Difference]: With dead ends: 9612 [2023-11-23 21:16:10,578 INFO L226 Difference]: Without dead ends: 6413 [2023-11-23 21:16:10,593 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 [2023-11-23 21:16:10,594 INFO L413 NwaCegarLoop]: 2262 mSDtfsCounter, 2387 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2387 SdHoareTripleChecker+Valid, 4436 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:10,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2387 Valid, 4436 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 365 Invalid, 5 Unknown, 0 Unchecked, 14.4s Time] [2023-11-23 21:16:10,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6413 states. [2023-11-23 21:16:10,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6413 to 6409. [2023-11-23 21:16:10,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6409 states, 3925 states have (on average 1.3363057324840764) internal successors, (5245), 4036 states have internal predecessors, (5245), 2043 states have call successors, (2043), 441 states have call predecessors, (2043), 440 states have return successors, (2042), 1979 states have call predecessors, (2042), 2042 states have call successors, (2042) [2023-11-23 21:16:11,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6409 states to 6409 states and 9330 transitions. [2023-11-23 21:16:11,047 INFO L78 Accepts]: Start accepts. Automaton has 6409 states and 9330 transitions. Word has length 181 [2023-11-23 21:16:11,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:11,050 INFO L495 AbstractCegarLoop]: Abstraction has 6409 states and 9330 transitions. [2023-11-23 21:16:11,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-23 21:16:11,050 INFO L276 IsEmpty]: Start isEmpty. Operand 6409 states and 9330 transitions. [2023-11-23 21:16:11,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-11-23 21:16:11,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:11,062 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:16:11,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:16:11,062 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:11,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:11,073 INFO L85 PathProgramCache]: Analyzing trace with hash 163899516, now seen corresponding path program 1 times [2023-11-23 21:16:11,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:11,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005102093] [2023-11-23 21:16:11,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:11,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:11,513 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-23 21:16:11,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:11,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005102093] [2023-11-23 21:16:11,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005102093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:11,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:11,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:11,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790909016] [2023-11-23 21:16:11,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:11,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:11,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:11,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:11,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:11,521 INFO L87 Difference]: Start difference. First operand 6409 states and 9330 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-23 21:16:13,681 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 []