./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-32_7a-drivers--infiniband--ulp--isert--ib_isert.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_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/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_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/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_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/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 d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:39:34,978 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:39:35,073 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:39:35,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:39:35,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:39:35,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:39:35,108 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:39:35,109 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:39:35,110 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:39:35,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:39:35,111 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:39:35,112 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:39:35,112 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:39:35,113 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:39:35,113 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:39:35,114 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:39:35,115 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:39:35,115 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:39:35,116 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:39:35,116 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:39:35,117 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:39:35,118 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:39:35,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:39:35,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:39:35,119 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:39:35,124 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:39:35,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:39:35,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:39:35,126 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:39:35,126 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:39:35,126 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:39:35,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:39:35,127 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:39:35,128 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:39:35,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:39:35,128 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:39:35,129 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:39:35,129 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:39:35,129 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:39:35,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:39:35,130 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:39:35,131 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:39:35,131 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:39:35,131 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:39:35,132 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_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b [2023-11-23 20:39:35,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:39:35,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:39:35,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:39:35,475 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:39:35,475 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:39:35,477 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2023-11-23 20:39:38,714 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:39:39,479 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:39:39,480 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2023-11-23 20:39:39,570 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/bin/utaipan-verify-mE87zJ7Ire/data/226add75f/32e68fc67eee4b90968aa46e1b8aaab9/FLAGcb4212d44 [2023-11-23 20:39:39,586 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/bin/utaipan-verify-mE87zJ7Ire/data/226add75f/32e68fc67eee4b90968aa46e1b8aaab9 [2023-11-23 20:39:39,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:39:39,590 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:39:39,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:39:39,592 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:39:39,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:39:39,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:39:39" (1/1) ... [2023-11-23 20:39:39,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61676f90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:39, skipping insertion in model container [2023-11-23 20:39:39,600 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:39:39" (1/1) ... [2023-11-23 20:39:39,824 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:39:43,524 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_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[477998,478011] [2023-11-23 20:39:43,911 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:39:43,948 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:39:44,217 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [9387] [2023-11-23 20:39:44,219 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapq %0": "=r" (val): "0" (val)); [9394] [2023-11-23 20:39:44,221 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [9435] [2023-11-23 20:39:44,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [9438] [2023-11-23 20:39:44,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [9441] [2023-11-23 20:39:44,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [9444] [2023-11-23 20:39:44,225 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"); [9532-9533] [2023-11-23 20:39:44,225 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; cmpxchgb %2,%1": "=a" (__ret), "+m" (*__ptr): "q" (__new), "0" (__old): "memory"); [9552-9553] [2023-11-23 20:39:44,226 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; cmpxchgw %2,%1": "=a" (__ret), "+m" (*__ptr___0): "r" (__new), "0" (__old): "memory"); [9557-9558] [2023-11-23 20:39:44,227 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; cmpxchgl %2,%1": "=a" (__ret), "+m" (*__ptr___1): "r" (__new), "0" (__old): "memory"); [9562-9563] [2023-11-23 20:39:44,227 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; cmpxchgq %2,%1": "=a" (__ret), "+m" (*__ptr___2): "r" (__new), "0" (__old): "memory"); [9567-9568] [2023-11-23 20:39:44,239 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (123), "i" (12UL)); [10029-10030] [2023-11-23 20:39:44,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (124), "i" (12UL)); [10037-10038] [2023-11-23 20:39:44,246 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)); [10114-10115] [2023-11-23 20:39:44,248 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)); [10143-10144] [2023-11-23 20:39:44,250 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" (56), "i" (12UL)); [10191-10192] [2023-11-23 20:39:44,250 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" (58), "i" (12UL)); [10200-10201] [2023-11-23 20:39:44,251 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" (70), "i" (12UL)); [10224-10225] [2023-11-23 20:39:44,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (108), "i" (12UL)); [10254-10255] [2023-11-23 20:39:44,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (120), "i" (12UL)); [10284-10285] [2023-11-23 20:39:44,459 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-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/4833/dscv_tempdir/dscv/ri/32_7a/drivers/infiniband/ulp/isert/ib_isert.c"), "i" (808), "i" (12UL)); [11596-11597] [2023-11-23 20:39:44,838 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_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[477998,478011] [2023-11-23 20:39:44,862 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:39:45,085 WARN L675 CHandler]: The function __cmpxchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:39:45,085 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:39:45,085 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:39:45,093 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:39:45,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:45 WrapperNode [2023-11-23 20:39:45,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:39:45,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:39:45,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:39:45,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:39:45,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:45" (1/1) ... [2023-11-23 20:39:45,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:45" (1/1) ... [2023-11-23 20:39:45,604 INFO L138 Inliner]: procedures = 483, calls = 3016, calls flagged for inlining = 237, calls inlined = 184, statements flattened = 7455 [2023-11-23 20:39:45,605 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:39:45,606 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:39:45,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:39:45,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:39:45,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:45" (1/1) ... [2023-11-23 20:39:45,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:45" (1/1) ... [2023-11-23 20:39:45,650 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:45" (1/1) ... [2023-11-23 20:39:45,650 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:45" (1/1) ... [2023-11-23 20:39:45,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:45" (1/1) ... [2023-11-23 20:39:46,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:45" (1/1) ... [2023-11-23 20:39:46,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:45" (1/1) ... [2023-11-23 20:39:46,065 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:45" (1/1) ... [2023-11-23 20:39:46,103 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:39:46,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:39:46,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:39:46,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:39:46,105 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:45" (1/1) ... [2023-11-23 20:39:46,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:39:46,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:39:46,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:39:46,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bb0f1b-2cf8-427c-8039-1cf26ad5ffc8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:39:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure ib_wc_status_msg [2023-11-23 20:39:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_wc_status_msg [2023-11-23 20:39:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:39:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:39:46,237 INFO L130 BoogieDeclarations]: Found specification of procedure isert_setup_id [2023-11-23 20:39:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_setup_id [2023-11-23 20:39:46,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:39:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:39:46,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_isert_conn [2023-11-23 20:39:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_isert_conn [2023-11-23 20:39:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-23 20:39:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-23 20:39:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2023-11-23 20:39:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2023-11-23 20:39:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_stop_dataout_timer [2023-11-23 20:39:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_stop_dataout_timer [2023-11-23 20:39:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_destroy_id [2023-11-23 20:39:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_destroy_id [2023-11-23 20:39:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-11-23 20:39:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-11-23 20:39:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure isert_cq_work [2023-11-23 20:39:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_cq_work [2023-11-23 20:39:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 20:39:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 20:39:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_recv [2023-11-23 20:39:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_recv [2023-11-23 20:39:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_device [2023-11-23 20:39:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_device [2023-11-23 20:39:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 20:39:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 20:39:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 20:39:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_isert_conn [2023-11-23 20:39:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_isert_conn [2023-11-23 20:39:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_unmap_single [2023-11-23 20:39:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_unmap_single [2023-11-23 20:39:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_send_wr [2023-11-23 20:39:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_send_wr [2023-11-23 20:39:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2023-11-23 20:39:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2023-11-23 20:39:46,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 20:39:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 20:39:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 20:39:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 20:39:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2023-11-23 20:39:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2023-11-23 20:39:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:39:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_address [2023-11-23 20:39:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_address [2023-11-23 20:39:46,247 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait_conn [2023-11-23 20:39:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait_conn [2023-11-23 20:39:46,247 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2023-11-23 20:39:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2023-11-23 20:39:46,248 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-23 20:39:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-23 20:39:46,248 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-11-23 20:39:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-11-23 20:39:46,248 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_map_single [2023-11-23 20:39:46,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_map_single [2023-11-23 20:39:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:39:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_terminate [2023-11-23 20:39:46,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_terminate [2023-11-23 20:39:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 20:39:46,250 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 20:39:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:39:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure isert_prot_cmd [2023-11-23 20:39:46,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_prot_cmd [2023-11-23 20:39:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:39:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 20:39:46,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 20:39:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2023-11-23 20:39:46,251 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2023-11-23 20:39:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 20:39:46,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 20:39:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure isert_release_work [2023-11-23 20:39:46,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_release_work [2023-11-23 20:39:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_np [2023-11-23 20:39:46,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_np [2023-11-23 20:39:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure isert_comp_put [2023-11-23 20:39:46,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_comp_put [2023-11-23 20:39:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-23 20:39:46,253 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-23 20:39:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-23 20:39:46,253 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-23 20:39:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2023-11-23 20:39:46,253 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2023-11-23 20:39:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_from_buffer [2023-11-23 20:39:46,254 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_from_buffer [2023-11-23 20:39:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 20:39:46,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 20:39:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:39:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-11-23 20:39:46,255 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-11-23 20:39:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:39:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-23 20:39:46,256 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-23 20:39:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:39:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 20:39:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:39:46,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:39:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure isert_completion_put [2023-11-23 20:39:46,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_completion_put [2023-11-23 20:39:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-23 20:39:46,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-23 20:39:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_data_buf [2023-11-23 20:39:46,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_data_buf [2023-11-23 20:39:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure isert_inv_rkey [2023-11-23 20:39:46,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_inv_rkey [2023-11-23 20:39:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-23 20:39:46,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-23 20:39:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_cpu [2023-11-23 20:39:46,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_cpu [2023-11-23 20:39:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 20:39:46,259 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 20:39:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure isert_allocate_cmd [2023-11-23 20:39:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_allocate_cmd [2023-11-23 20:39:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure isert_do_control_comp [2023-11-23 20:39:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_do_control_comp [2023-11-23 20:39:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_conn [2023-11-23 20:39:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_conn [2023-11-23 20:39:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure isert_connect_release [2023-11-23 20:39:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_connect_release [2023-11-23 20:39:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_comps [2023-11-23 20:39:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_comps [2023-11-23 20:39:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:39:46,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:39:46,266 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2023-11-23 20:39:46,266 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2023-11-23 20:39:46,266 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 20:39:46,267 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 20:39:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-23 20:39:46,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-23 20:39:46,269 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-23 20:39:46,269 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-23 20:39:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:39:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:39:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure isert_device_put [2023-11-23 20:39:46,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_device_put [2023-11-23 20:39:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:39:46,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:39:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure isert_map_data_buf [2023-11-23 20:39:46,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_map_data_buf [2023-11-23 20:39:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 20:39:46,277 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 20:39:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_conn [2023-11-23 20:39:46,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_conn [2023-11-23 20:39:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_send [2023-11-23 20:39:46,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_send [2023-11-23 20:39:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_tx_hdrs [2023-11-23 20:39:46,278 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_tx_hdrs [2023-11-23 20:39:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2023-11-23 20:39:46,278 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2023-11-23 20:39:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-23 20:39:46,278 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-23 20:39:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure ib_free_fast_reg_page_list [2023-11-23 20:39:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_free_fast_reg_page_list [2023-11-23 20:39:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-11-23 20:39:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-11-23 20:39:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 20:39:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 20:39:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure isert_aborted_task [2023-11-23 20:39:46,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_aborted_task [2023-11-23 20:39:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 20:39:46,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 20:39:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-11-23 20:39:46,280 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-11-23 20:39:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_response [2023-11-23 20:39:46,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_response [2023-11-23 20:39:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait4flush [2023-11-23 20:39:46,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait4flush [2023-11-23 20:39:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 20:39:46,281 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 20:39:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:39:46,281 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:39:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 20:39:46,281 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 20:39:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_login_buf [2023-11-23 20:39:46,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_login_buf [2023-11-23 20:39:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-23 20:39:46,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-23 20:39:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-11-23 20:39:46,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-11-23 20:39:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:39:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 20:39:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 20:39:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_priv_cmd [2023-11-23 20:39:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_priv_cmd [2023-11-23 20:39:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_nopin [2023-11-23 20:39:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_nopin [2023-11-23 20:39:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:39:46,284 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2023-11-23 20:39:46,284 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2023-11-23 20:39:46,284 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_rdma [2023-11-23 20:39:46,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_rdma [2023-11-23 20:39:46,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:39:46,284 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:39:46,284 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:39:46,284 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_recv [2023-11-23 20:39:46,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_recv [2023-11-23 20:39:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-23 20:39:46,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-23 20:39:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 20:39:46,285 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 20:39:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-23 20:39:46,285 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-23 20:39:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-23 20:39:46,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-23 20:39:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 20:39:46,286 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 20:39:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rdma_post_recvl [2023-11-23 20:39:46,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rdma_post_recvl [2023-11-23 20:39:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_free_fastreg_pool [2023-11-23 20:39:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_free_fastreg_pool [2023-11-23 20:39:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure transport_send_check_condition_and_sense [2023-11-23 20:39:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_send_check_condition_and_sense [2023-11-23 20:39:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-23 20:39:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-23 20:39:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_sig_mr [2023-11-23 20:39:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_sig_mr [2023-11-23 20:39:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2023-11-23 20:39:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2023-11-23 20:39:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_tx_desc [2023-11-23 20:39:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_tx_desc [2023-11-23 20:39:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-23 20:39:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-23 20:39:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_device_list_mutex [2023-11-23 20:39:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_device_list_mutex [2023-11-23 20:39:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_device_list_mutex [2023-11-23 20:39:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_device_list_mutex [2023-11-23 20:39:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_workqueue_key [2023-11-23 20:39:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_workqueue_key [2023-11-23 20:39:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2023-11-23 20:39:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2023-11-23 20:39:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure isert_handle_prot_cmd [2023-11-23 20:39:46,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_handle_prot_cmd [2023-11-23 20:39:46,290 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dereg_mr [2023-11-23 20:39:46,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dereg_mr [2023-11-23 20:39:46,290 INFO L130 BoogieDeclarations]: Found specification of procedure ib_req_notify_cq [2023-11-23 20:39:46,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_req_notify_cq [2023-11-23 20:39:46,290 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:39:46,290 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:39:46,290 INFO L130 BoogieDeclarations]: Found specification of procedure isert_check_pi_status [2023-11-23 20:39:46,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_check_pi_status [2023-11-23 20:39:46,291 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-11-23 20:39:46,291 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-11-23 20:39:46,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:39:46,291 INFO L130 BoogieDeclarations]: Found specification of procedure isert_create_send_desc [2023-11-23 20:39:46,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_create_send_desc [2023-11-23 20:39:46,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:39:46,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:39:46,292 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_len [2023-11-23 20:39:46,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_len [2023-11-23 20:39:46,292 INFO L130 BoogieDeclarations]: Found specification of procedure isert_fast_reg_mr [2023-11-23 20:39:46,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_fast_reg_mr [2023-11-23 20:39:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 20:39:46,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 20:39:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2023-11-23 20:39:46,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2023-11-23 20:39:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_response [2023-11-23 20:39:46,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_response [2023-11-23 20:39:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_mr [2023-11-23 20:39:46,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_mr [2023-11-23 20:39:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 20:39:46,293 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 20:39:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rx_login_req [2023-11-23 20:39:46,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rx_login_req [2023-11-23 20:39:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2023-11-23 20:39:46,294 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2023-11-23 20:39:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_mapping_error [2023-11-23 20:39:46,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_mapping_error [2023-11-23 20:39:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:39:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 20:39:46,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 20:39:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure target_put_sess_cmd [2023-11-23 20:39:46,294 INFO L138 BoogieDeclarations]: Found implementation of procedure target_put_sess_cmd [2023-11-23 20:39:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure isert_set_dif_domain [2023-11-23 20:39:46,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_set_dif_domain [2023-11-23 20:39:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-11-23 20:39:46,295 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-11-23 20:39:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_pd [2023-11-23 20:39:46,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_pd [2023-11-23 20:39:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_page_list [2023-11-23 20:39:46,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_page_list [2023-11-23 20:39:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_build_rsp_pdu [2023-11-23 20:39:46,295 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_build_rsp_pdu [2023-11-23 20:39:47,464 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:39:47,469 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:39:47,662 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:39:56,146 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:39:58,518 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:39:58,518 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:39:58,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:39:58 BoogieIcfgContainer [2023-11-23 20:39:58,521 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:39:58,526 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:39:58,526 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:39:58,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:39:58,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:39:39" (1/3) ... [2023-11-23 20:39:58,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69aef77a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:39:58, skipping insertion in model container [2023-11-23 20:39:58,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:45" (2/3) ... [2023-11-23 20:39:58,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69aef77a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:39:58, skipping insertion in model container [2023-11-23 20:39:58,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:39:58" (3/3) ... [2023-11-23 20:39:58,534 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2023-11-23 20:39:58,557 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:39:58,557 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:39:58,683 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:39:58,690 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;@654a5534, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:39:58,691 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:39:58,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 2253 states, 1385 states have (on average 1.3155234657039712) internal successors, (1822), 1445 states have internal predecessors, (1822), 734 states have call successors, (734), 133 states have call predecessors, (734), 132 states have return successors, (728), 717 states have call predecessors, (728), 728 states have call successors, (728) [2023-11-23 20:39:58,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-23 20:39:58,745 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:39:58,746 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:39:58,747 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:39:58,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:39:58,759 INFO L85 PathProgramCache]: Analyzing trace with hash -676823376, now seen corresponding path program 1 times [2023-11-23 20:39:58,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:39:58,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521640775] [2023-11-23 20:39:58,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:39:58,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:39:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:39:59,682 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 20:39:59,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:39:59,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521640775] [2023-11-23 20:39:59,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521640775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:39:59,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:39:59,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:39:59,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741530149] [2023-11-23 20:39:59,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:39:59,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:39:59,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:39:59,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:39:59,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:39:59,755 INFO L87 Difference]: Start difference. First operand has 2253 states, 1385 states have (on average 1.3155234657039712) internal successors, (1822), 1445 states have internal predecessors, (1822), 734 states have call successors, (734), 133 states have call predecessors, (734), 132 states have return successors, (728), 717 states have call predecessors, (728), 728 states have call successors, (728) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 20:40:02,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:40:06,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:40:07,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:40:07,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:40:07,645 INFO L93 Difference]: Finished difference Result 6222 states and 9125 transitions. [2023-11-23 20:40:07,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:40:07,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2023-11-23 20:40:07,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:40:07,712 INFO L225 Difference]: With dead ends: 6222 [2023-11-23 20:40:07,712 INFO L226 Difference]: Without dead ends: 3947 [2023-11-23 20:40:07,745 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 20:40:07,748 INFO L413 NwaCegarLoop]: 3035 mSDtfsCounter, 2476 mSDsluCounter, 2977 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2476 SdHoareTripleChecker+Valid, 6012 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-11-23 20:40:07,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2476 Valid, 6012 Invalid, 511 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-11-23 20:40:07,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3947 states. [2023-11-23 20:40:08,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3947 to 3924. [2023-11-23 20:40:08,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3924 states, 2415 states have (on average 1.3014492753623188) internal successors, (3143), 2507 states have internal predecessors, (3143), 1253 states have call successors, (1253), 256 states have call predecessors, (1253), 255 states have return successors, (1241), 1218 states have call predecessors, (1241), 1241 states have call successors, (1241) [2023-11-23 20:40:08,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3924 states to 3924 states and 5637 transitions. [2023-11-23 20:40:08,274 INFO L78 Accepts]: Start accepts. Automaton has 3924 states and 5637 transitions. Word has length 69 [2023-11-23 20:40:08,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:40:08,275 INFO L495 AbstractCegarLoop]: Abstraction has 3924 states and 5637 transitions. [2023-11-23 20:40:08,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 20:40:08,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3924 states and 5637 transitions. [2023-11-23 20:40:08,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-23 20:40:08,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:40:08,284 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:40:08,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:40:08,284 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:40:08,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:40:08,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1747521201, now seen corresponding path program 1 times [2023-11-23 20:40:08,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:40:08,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247433692] [2023-11-23 20:40:08,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:40:08,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:40:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:40:09,223 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 20:40:09,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:40:09,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247433692] [2023-11-23 20:40:09,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247433692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:40:09,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:40:09,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:40:09,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418887550] [2023-11-23 20:40:09,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:40:09,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:40:09,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:40:09,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:40:09,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:40:09,230 INFO L87 Difference]: Start difference. First operand 3924 states and 5637 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-23 20:40:10,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:40:13,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:40:15,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:40:15,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:40:15,845 INFO L93 Difference]: Finished difference Result 3944 states and 5647 transitions. [2023-11-23 20:40:15,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:40:15,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 74 [2023-11-23 20:40:15,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:40:15,876 INFO L225 Difference]: With dead ends: 3944 [2023-11-23 20:40:15,876 INFO L226 Difference]: Without dead ends: 3940 [2023-11-23 20:40:15,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 20:40:15,880 INFO L413 NwaCegarLoop]: 2997 mSDtfsCounter, 3132 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3132 SdHoareTripleChecker+Valid, 3063 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:40:15,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3132 Valid, 3063 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-11-23 20:40:15,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3940 states. [2023-11-23 20:40:16,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3940 to 3938. [2023-11-23 20:40:16,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 2423 states have (on average 1.2992158481221625) internal successors, (3148), 2513 states have internal predecessors, (3148), 1251 states have call successors, (1251), 264 states have call predecessors, (1251), 263 states have return successors, (1241), 1218 states have call predecessors, (1241), 1241 states have call successors, (1241) [2023-11-23 20:40:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5640 transitions. [2023-11-23 20:40:16,242 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5640 transitions. Word has length 74 [2023-11-23 20:40:16,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:40:16,245 INFO L495 AbstractCegarLoop]: Abstraction has 3938 states and 5640 transitions. [2023-11-23 20:40:16,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-23 20:40:16,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5640 transitions. [2023-11-23 20:40:16,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 20:40:16,250 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:40:16,251 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:40:16,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:40:16,251 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:40:16,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:40:16,261 INFO L85 PathProgramCache]: Analyzing trace with hash -348752683, now seen corresponding path program 1 times [2023-11-23 20:40:16,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:40:16,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016693698] [2023-11-23 20:40:16,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:40:16,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:40:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:40:16,675 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 20:40:16,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:40:16,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016693698] [2023-11-23 20:40:16,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016693698] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:40:16,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:40:16,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:40:16,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049602108] [2023-11-23 20:40:16,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:40:16,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:40:16,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:40:16,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:40:16,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:40:16,680 INFO L87 Difference]: Start difference. First operand 3938 states and 5640 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 20:40:17,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:40:20,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:40:22,554 WARN L539 Checker$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 20:40:23,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:40:23,247 INFO L93 Difference]: Finished difference Result 3966 states and 5654 transitions. [2023-11-23 20:40:23,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:40:23,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 79 [2023-11-23 20:40:23,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:40:23,285 INFO L225 Difference]: With dead ends: 3966 [2023-11-23 20:40:23,285 INFO L226 Difference]: Without dead ends: 3962 [2023-11-23 20:40:23,289 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 20:40:23,292 INFO L413 NwaCegarLoop]: 2992 mSDtfsCounter, 3142 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3142 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:40:23,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3142 Valid, 3044 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 247 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2023-11-23 20:40:23,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3962 states. [2023-11-23 20:40:23,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3962 to 3960. [2023-11-23 20:40:23,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3960 states, 2435 states have (on average 1.2965092402464067) internal successors, (3157), 2523 states have internal predecessors, (3157), 1249 states have call successors, (1249), 276 states have call predecessors, (1249), 275 states have return successors, (1241), 1218 states have call predecessors, (1241), 1241 states have call successors, (1241) [2023-11-23 20:40:23,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3960 states to 3960 states and 5647 transitions. [2023-11-23 20:40:23,771 INFO L78 Accepts]: Start accepts. Automaton has 3960 states and 5647 transitions. Word has length 79 [2023-11-23 20:40:23,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:40:23,771 INFO L495 AbstractCegarLoop]: Abstraction has 3960 states and 5647 transitions. [2023-11-23 20:40:23,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 20:40:23,772 INFO L276 IsEmpty]: Start isEmpty. Operand 3960 states and 5647 transitions. [2023-11-23 20:40:23,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 20:40:23,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:40:23,777 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:40:23,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:40:23,778 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:40:23,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:40:23,779 INFO L85 PathProgramCache]: Analyzing trace with hash 2072343377, now seen corresponding path program 1 times [2023-11-23 20:40:23,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:40:23,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808858982] [2023-11-23 20:40:23,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:40:23,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:40:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:40:24,142 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 20:40:24,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:40:24,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808858982] [2023-11-23 20:40:24,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808858982] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:40:24,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:40:24,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:40:24,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372116017] [2023-11-23 20:40:24,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:40:24,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:40:24,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:40:24,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:40:24,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:40:24,145 INFO L87 Difference]: Start difference. First operand 3960 states and 5647 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)