./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/bin/utaipan-verify-SwPr7d2a91 --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 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:22:22,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:22:22,388 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:22:22,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:22:22,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:22:22,445 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:22:22,449 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:22:22,450 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:22:22,452 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:22:22,457 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:22:22,457 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:22:22,458 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:22:22,458 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:22:22,460 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:22:22,461 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:22:22,462 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:22:22,462 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:22:22,463 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:22:22,463 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:22:22,464 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:22:22,464 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:22:22,465 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:22:22,466 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:22:22,467 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:22:22,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:22:22,468 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:22:22,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:22:22,469 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:22:22,469 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:22:22,470 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:22:22,471 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:22:22,472 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:22:22,472 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:22:22,472 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:22:22,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:22:22,473 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:22:22,473 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:22:22,474 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:22:22,474 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:22:22,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:22:22,475 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:22:22,476 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:22:22,476 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:22:22,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:22:22,477 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_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f [2023-11-24 23:22:22,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:22:22,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:22:22,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:22:22,872 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:22:22,872 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:22:22,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-24 23:22:26,049 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:22:26,850 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:22:26,851 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-24 23:22:26,905 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/bin/utaipan-verify-SwPr7d2a91/data/de0d50b1b/884a6f7c9b44428bbc4525e0f3efd2c8/FLAG922ef74af [2023-11-24 23:22:26,921 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/bin/utaipan-verify-SwPr7d2a91/data/de0d50b1b/884a6f7c9b44428bbc4525e0f3efd2c8 [2023-11-24 23:22:26,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:22:26,926 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:22:26,928 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:22:26,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:22:26,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:22:26,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:22:26" (1/1) ... [2023-11-24 23:22:26,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e19f39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:26, skipping insertion in model container [2023-11-24 23:22:26,947 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:22:26" (1/1) ... [2023-11-24 23:22:27,137 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:22:30,309 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_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2023-11-24 23:22:30,314 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_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2023-11-24 23:22:30,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:22:30,409 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:22:30,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5255] [2023-11-24 23:22:30,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5262] [2023-11-24 23:22:30,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5269] [2023-11-24 23:22:30,681 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 *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5306-5307] [2023-11-24 23:22:30,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5312-5314] [2023-11-24 23:22:30,694 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)); [5455-5456] [2023-11-24 23:22:30,696 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)); [5489-5490] [2023-11-24 23:22:30,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7251] [2023-11-24 23:22:30,914 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7503] [2023-11-24 23:22:31,048 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_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2023-11-24 23:22:31,049 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_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2023-11-24 23:22:31,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:22:31,272 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:22:31,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31 WrapperNode [2023-11-24 23:22:31,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:22:31,275 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:22:31,275 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:22:31,275 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:22:31,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:31,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:31,719 INFO L138 Inliner]: procedures = 411, calls = 1792, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 4891 [2023-11-24 23:22:31,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:22:31,722 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:22:31,722 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:22:31,722 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:22:31,733 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:31,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:31,776 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:31,777 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:31,924 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:31,965 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:32,008 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:32,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:32,079 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:22:32,081 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:22:32,081 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:22:32,081 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:22:32,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:32,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:22:32,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:22:32,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:22:32,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f07fc5-ac1b-4d23-8332-4d7fb46b2840/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:22:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_92 [2023-11-24 23:22:32,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_92 [2023-11-24 23:22:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-24 23:22:32,167 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-24 23:22:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:22:32,167 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:22:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-24 23:22:32,168 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-24 23:22:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-24 23:22:32,168 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-24 23:22:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:22:32,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:22:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-24 23:22:32,169 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-24 23:22:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-24 23:22:32,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-24 23:22:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-24 23:22:32,170 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-24 23:22:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-24 23:22:32,171 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-24 23:22:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2023-11-24 23:22:32,171 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2023-11-24 23:22:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2023-11-24 23:22:32,172 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2023-11-24 23:22:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-24 23:22:32,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-24 23:22:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-24 23:22:32,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-24 23:22:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-24 23:22:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-24 23:22:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-24 23:22:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-24 23:22:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-24 23:22:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-24 23:22:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:22:32,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:22:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-24 23:22:32,174 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-24 23:22:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:22:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2023-11-24 23:22:32,175 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2023-11-24 23:22:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-24 23:22:32,175 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-24 23:22:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-24 23:22:32,175 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-24 23:22:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:22:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-24 23:22:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-24 23:22:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:22:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-24 23:22:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-24 23:22:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2023-11-24 23:22:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2023-11-24 23:22:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2023-11-24 23:22:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2023-11-24 23:22:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:22:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2023-11-24 23:22:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2023-11-24 23:22:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-24 23:22:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-24 23:22:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:22:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:22:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-24 23:22:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-24 23:22:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-24 23:22:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-24 23:22:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-24 23:22:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-24 23:22:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-24 23:22:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-24 23:22:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-24 23:22:32,180 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-24 23:22:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-24 23:22:32,180 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-24 23:22:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2023-11-24 23:22:32,180 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2023-11-24 23:22:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2023-11-24 23:22:32,181 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2023-11-24 23:22:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:22:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-24 23:22:32,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-24 23:22:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-24 23:22:32,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-24 23:22:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:22:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2023-11-24 23:22:32,182 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2023-11-24 23:22:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-24 23:22:32,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-24 23:22:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-24 23:22:32,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-24 23:22:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:22:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:22:32,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:22:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-24 23:22:32,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-24 23:22:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-24 23:22:32,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-24 23:22:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-24 23:22:32,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-24 23:22:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-24 23:22:32,185 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-24 23:22:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-24 23:22:32,185 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-24 23:22:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-24 23:22:32,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-24 23:22:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-11-24 23:22:32,186 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-11-24 23:22:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:22:32,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:22:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2023-11-24 23:22:32,187 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2023-11-24 23:22:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2023-11-24 23:22:32,187 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2023-11-24 23:22:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:22:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:22:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:22:32,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:22:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-24 23:22:32,188 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-24 23:22:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2023-11-24 23:22:32,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2023-11-24 23:22:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-24 23:22:32,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-24 23:22:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-24 23:22:32,189 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-24 23:22:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-24 23:22:32,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-24 23:22:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-24 23:22:32,190 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-24 23:22:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-24 23:22:32,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-24 23:22:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2023-11-24 23:22:32,191 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2023-11-24 23:22:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2023-11-24 23:22:32,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2023-11-24 23:22:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-24 23:22:32,191 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-24 23:22:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:22:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-24 23:22:32,192 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-24 23:22:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:22:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-24 23:22:32,192 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-24 23:22:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:22:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:22:32,193 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:22:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-24 23:22:32,193 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-24 23:22:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-24 23:22:32,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-24 23:22:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2023-11-24 23:22:32,194 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2023-11-24 23:22:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-24 23:22:32,194 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-24 23:22:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2023-11-24 23:22:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2023-11-24 23:22:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2023-11-24 23:22:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2023-11-24 23:22:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2023-11-24 23:22:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2023-11-24 23:22:32,196 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2023-11-24 23:22:32,196 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2023-11-24 23:22:32,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:22:32,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:22:32,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:22:32,196 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2023-11-24 23:22:32,197 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2023-11-24 23:22:32,197 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2023-11-24 23:22:32,197 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2023-11-24 23:22:32,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-24 23:22:32,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-24 23:22:32,197 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-24 23:22:32,198 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-24 23:22:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-24 23:22:32,198 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-24 23:22:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2023-11-24 23:22:32,198 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2023-11-24 23:22:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:22:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-24 23:22:32,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-24 23:22:32,996 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:22:33,004 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:22:33,710 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:22:36,976 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-24 23:22:37,132 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:22:39,862 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:22:39,862 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:22:39,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:22:39 BoogieIcfgContainer [2023-11-24 23:22:39,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:22:39,869 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:22:39,870 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:22:39,873 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:22:39,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:22:26" (1/3) ... [2023-11-24 23:22:39,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5501e90a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:22:39, skipping insertion in model container [2023-11-24 23:22:39,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (2/3) ... [2023-11-24 23:22:39,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5501e90a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:22:39, skipping insertion in model container [2023-11-24 23:22:39,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:22:39" (3/3) ... [2023-11-24 23:22:39,878 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-24 23:22:39,901 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:22:39,901 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:22:40,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:22:40,036 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;@6b36f43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:22:40,036 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:22:40,051 INFO L276 IsEmpty]: Start isEmpty. Operand has 1218 states, 705 states have (on average 1.2836879432624113) internal successors, (905), 724 states have internal predecessors, (905), 431 states have call successors, (431), 82 states have call predecessors, (431), 81 states have return successors, (425), 419 states have call predecessors, (425), 425 states have call successors, (425) [2023-11-24 23:22:40,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-24 23:22:40,111 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:40,112 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:40,113 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:22:40,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:40,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1679192733, now seen corresponding path program 1 times [2023-11-24 23:22:40,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:40,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549410466] [2023-11-24 23:22:40,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:40,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:41,380 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-24 23:22:41,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:41,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549410466] [2023-11-24 23:22:41,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549410466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:41,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:41,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:22:41,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203752268] [2023-11-24 23:22:41,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:41,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:22:41,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:41,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:22:41,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:41,443 INFO L87 Difference]: Start difference. First operand has 1218 states, 705 states have (on average 1.2836879432624113) internal successors, (905), 724 states have internal predecessors, (905), 431 states have call successors, (431), 82 states have call predecessors, (431), 81 states have return successors, (425), 419 states have call predecessors, (425), 425 states have call successors, (425) Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-24 23:22:44,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:44,576 INFO L93 Difference]: Finished difference Result 3569 states and 5205 transitions. [2023-11-24 23:22:44,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:22:44,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 161 [2023-11-24 23:22:44,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:44,628 INFO L225 Difference]: With dead ends: 3569 [2023-11-24 23:22:44,629 INFO L226 Difference]: Without dead ends: 2271 [2023-11-24 23:22:44,652 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 [2023-11-24 23:22:44,657 INFO L413 NwaCegarLoop]: 1524 mSDtfsCounter, 1704 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:44,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 2994 Invalid, 512 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-24 23:22:44,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2271 states. [2023-11-24 23:22:44,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2271 to 2267. [2023-11-24 23:22:44,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2267 states, 1330 states have (on average 1.2849624060150375) internal successors, (1709), 1369 states have internal predecessors, (1709), 780 states have call successors, (780), 158 states have call predecessors, (780), 156 states have return successors, (783), 763 states have call predecessors, (783), 780 states have call successors, (783) [2023-11-24 23:22:44,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2267 states to 2267 states and 3272 transitions. [2023-11-24 23:22:44,997 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 3272 transitions. Word has length 161 [2023-11-24 23:22:44,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:44,998 INFO L495 AbstractCegarLoop]: Abstraction has 2267 states and 3272 transitions. [2023-11-24 23:22:44,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-24 23:22:44,999 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 3272 transitions. [2023-11-24 23:22:45,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-24 23:22:45,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:45,012 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:45,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:22:45,013 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:22:45,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:45,014 INFO L85 PathProgramCache]: Analyzing trace with hash -214215920, now seen corresponding path program 1 times [2023-11-24 23:22:45,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:45,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648742418] [2023-11-24 23:22:45,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:45,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:45,512 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-24 23:22:45,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:45,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648742418] [2023-11-24 23:22:45,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648742418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:45,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:45,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:22:45,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823710671] [2023-11-24 23:22:45,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:45,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:22:45,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:45,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:22:45,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:45,518 INFO L87 Difference]: Start difference. First operand 2267 states and 3272 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-24 23:22:48,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:48,572 INFO L93 Difference]: Finished difference Result 6042 states and 8707 transitions. [2023-11-24 23:22:48,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:22:48,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 170 [2023-11-24 23:22:48,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:48,611 INFO L225 Difference]: With dead ends: 6042 [2023-11-24 23:22:48,611 INFO L226 Difference]: Without dead ends: 3794 [2023-11-24 23:22:48,631 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 [2023-11-24 23:22:48,637 INFO L413 NwaCegarLoop]: 1547 mSDtfsCounter, 1082 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 2943 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:48,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 2943 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-24 23:22:48,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3794 states. [2023-11-24 23:22:48,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3794 to 3790. [2023-11-24 23:22:48,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3790 states, 2263 states have (on average 1.286345558992488) internal successors, (2911), 2324 states have internal predecessors, (2911), 1258 states have call successors, (1258), 270 states have call predecessors, (1258), 268 states have return successors, (1261), 1233 states have call predecessors, (1261), 1258 states have call successors, (1261) [2023-11-24 23:22:48,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3790 states to 3790 states and 5430 transitions. [2023-11-24 23:22:48,998 INFO L78 Accepts]: Start accepts. Automaton has 3790 states and 5430 transitions. Word has length 170 [2023-11-24 23:22:49,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:49,001 INFO L495 AbstractCegarLoop]: Abstraction has 3790 states and 5430 transitions. [2023-11-24 23:22:49,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-24 23:22:49,003 INFO L276 IsEmpty]: Start isEmpty. Operand 3790 states and 5430 transitions. [2023-11-24 23:22:49,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-24 23:22:49,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:49,013 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:49,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:22:49,014 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:22:49,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:49,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1816723549, now seen corresponding path program 1 times [2023-11-24 23:22:49,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:49,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830981583] [2023-11-24 23:22:49,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:49,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:49,643 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-24 23:22:49,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:49,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830981583] [2023-11-24 23:22:49,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830981583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:49,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:49,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:22:49,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134406877] [2023-11-24 23:22:49,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:49,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:22:49,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:49,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:22:49,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:49,650 INFO L87 Difference]: Start difference. First operand 3790 states and 5430 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-24 23:22:52,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:52,579 INFO L93 Difference]: Finished difference Result 10728 states and 15321 transitions. [2023-11-24 23:22:52,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:22:52,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 171 [2023-11-24 23:22:52,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:52,638 INFO L225 Difference]: With dead ends: 10728 [2023-11-24 23:22:52,638 INFO L226 Difference]: Without dead ends: 6957 [2023-11-24 23:22:52,664 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 [2023-11-24 23:22:52,668 INFO L413 NwaCegarLoop]: 1437 mSDtfsCounter, 1479 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 2820 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:52,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 2820 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-24 23:22:52,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6957 states. [2023-11-24 23:22:53,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6957 to 6952. [2023-11-24 23:22:53,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6952 states, 4128 states have (on average 1.2751937984496124) internal successors, (5264), 4237 states have internal predecessors, (5264), 2312 states have call successors, (2312), 516 states have call predecessors, (2312), 511 states have return successors, (2319), 2262 states have call predecessors, (2319), 2312 states have call successors, (2319) [2023-11-24 23:22:53,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6952 states to 6952 states and 9895 transitions. [2023-11-24 23:22:53,439 INFO L78 Accepts]: Start accepts. Automaton has 6952 states and 9895 transitions. Word has length 171 [2023-11-24 23:22:53,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:53,442 INFO L495 AbstractCegarLoop]: Abstraction has 6952 states and 9895 transitions. [2023-11-24 23:22:53,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-24 23:22:53,442 INFO L276 IsEmpty]: Start isEmpty. Operand 6952 states and 9895 transitions. [2023-11-24 23:22:53,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-11-24 23:22:53,457 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:53,458 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:53,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:22:53,458 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:22:53,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:53,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1674430914, now seen corresponding path program 1 times [2023-11-24 23:22:53,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:53,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984347408] [2023-11-24 23:22:53,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:53,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-11-24 23:22:54,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:54,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984347408] [2023-11-24 23:22:54,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984347408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:54,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:54,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:22:54,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015982786] [2023-11-24 23:22:54,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:54,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:22:54,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:54,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:22:54,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:54,177 INFO L87 Difference]: Start difference. First operand 6952 states and 9895 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-24 23:22:56,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:56,260 INFO L93 Difference]: Finished difference Result 13877 states and 19754 transitions. [2023-11-24 23:22:56,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:22:56,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 226 [2023-11-24 23:22:56,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:56,341 INFO L225 Difference]: With dead ends: 13877 [2023-11-24 23:22:56,341 INFO L226 Difference]: Without dead ends: 6944 [2023-11-24 23:22:56,377 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 [2023-11-24 23:22:56,380 INFO L413 NwaCegarLoop]: 1422 mSDtfsCounter, 1634 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:56,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 1422 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-24 23:22:56,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6944 states. [2023-11-24 23:22:56,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6944 to 6944. [2023-11-24 23:22:56,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6944 states, 4120 states have (on average 1.2679611650485436) internal successors, (5224), 4229 states have internal predecessors, (5224), 2312 states have call successors, (2312), 516 states have call predecessors, (2312), 511 states have return successors, (2319), 2262 states have call predecessors, (2319), 2312 states have call successors, (2319) [2023-11-24 23:22:57,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6944 states to 6944 states and 9855 transitions. [2023-11-24 23:22:57,047 INFO L78 Accepts]: Start accepts. Automaton has 6944 states and 9855 transitions. Word has length 226 [2023-11-24 23:22:57,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:57,049 INFO L495 AbstractCegarLoop]: Abstraction has 6944 states and 9855 transitions. [2023-11-24 23:22:57,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-24 23:22:57,051 INFO L276 IsEmpty]: Start isEmpty. Operand 6944 states and 9855 transitions. [2023-11-24 23:22:57,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2023-11-24 23:22:57,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:57,063 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:57,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:22:57,063 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:22:57,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:57,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1981562506, now seen corresponding path program 1 times [2023-11-24 23:22:57,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:57,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119865636] [2023-11-24 23:22:57,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:57,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:57,432 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-11-24 23:22:57,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:57,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119865636] [2023-11-24 23:22:57,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119865636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:57,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:57,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:22:57,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890596330] [2023-11-24 23:22:57,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:57,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:22:57,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:57,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:22:57,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:57,439 INFO L87 Difference]: Start difference. First operand 6944 states and 9855 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-24 23:23:01,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:23:01,199 INFO L93 Difference]: Finished difference Result 16549 states and 23479 transitions. [2023-11-24 23:23:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:23:01,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 228 [2023-11-24 23:23:01,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:23:01,314 INFO L225 Difference]: With dead ends: 16549 [2023-11-24 23:23:01,314 INFO L226 Difference]: Without dead ends: 9624 [2023-11-24 23:23:01,355 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 [2023-11-24 23:23:01,356 INFO L413 NwaCegarLoop]: 2330 mSDtfsCounter, 1087 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 3713 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:23:01,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 3713 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-24 23:23:01,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9624 states. [2023-11-24 23:23:02,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9624 to 9618. [2023-11-24 23:23:02,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9618 states, 5740 states have (on average 1.2662020905923346) internal successors, (7268), 5883 states have internal predecessors, (7268), 3156 states have call successors, (3156), 726 states have call predecessors, (3156), 721 states have return successors, (3163), 3094 states have call predecessors, (3163), 3156 states have call successors, (3163) [2023-11-24 23:23:02,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9618 states to 9618 states and 13587 transitions. [2023-11-24 23:23:02,144 INFO L78 Accepts]: Start accepts. Automaton has 9618 states and 13587 transitions. Word has length 228 [2023-11-24 23:23:02,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:23:02,145 INFO L495 AbstractCegarLoop]: Abstraction has 9618 states and 13587 transitions. [2023-11-24 23:23:02,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-24 23:23:02,145 INFO L276 IsEmpty]: Start isEmpty. Operand 9618 states and 13587 transitions. [2023-11-24 23:23:02,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-11-24 23:23:02,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:23:02,162 INFO L195 NwaCegarLoop]: trace histogram [15, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:23:02,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:23:02,162 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:23:02,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:23:02,163 INFO L85 PathProgramCache]: Analyzing trace with hash -719991308, now seen corresponding path program 1 times [2023-11-24 23:23:02,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:23:02,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525514149] [2023-11-24 23:23:02,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:23:02,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:23:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:23:03,153 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2023-11-24 23:23:03,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:23:03,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525514149] [2023-11-24 23:23:03,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525514149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:23:03,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:23:03,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:23:03,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911816620] [2023-11-24 23:23:03,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:23:03,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:23:03,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:23:03,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:23:03,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:23:03,158 INFO L87 Difference]: Start difference. First operand 9618 states and 13587 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37)