./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 cf1a7837 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_bca162c7-83f4-43ce-845b-b53a8bb522bc/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca162c7-83f4-43ce-845b-b53a8bb522bc/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca162c7-83f4-43ce-845b-b53a8bb522bc/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca162c7-83f4-43ce-845b-b53a8bb522bc/bin/utaipan-verify-NcY6lQBIFX/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_bca162c7-83f4-43ce-845b-b53a8bb522bc/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca162c7-83f4-43ce-845b-b53a8bb522bc/bin/utaipan-verify-NcY6lQBIFX --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 0.2.3-dev-cf1a783 [2023-11-12 00:49:45,986 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:49:46,065 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca162c7-83f4-43ce-845b-b53a8bb522bc/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:49:46,070 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:49:46,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:49:46,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:49:46,106 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:49:46,107 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:49:46,108 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:49:46,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:49:46,113 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:49:46,114 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:49:46,114 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:49:46,116 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:49:46,116 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:49:46,117 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:49:46,117 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:49:46,118 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:49:46,119 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:49:46,120 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:49:46,120 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:49:46,121 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:49:46,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:49:46,123 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:49:46,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:49:46,124 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:49:46,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:49:46,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:49:46,125 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:49:46,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:49:46,127 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:49:46,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:49:46,127 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:49:46,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:49:46,128 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:49:46,128 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:49:46,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:49:46,129 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:49:46,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:49:46,129 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:49:46,129 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:49:46,130 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:49:46,130 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_bca162c7-83f4-43ce-845b-b53a8bb522bc/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca162c7-83f4-43ce-845b-b53a8bb522bc/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f [2023-11-12 00:49:46,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:49:46,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:49:46,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:49:46,519 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:49:46,520 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:49:46,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca162c7-83f4-43ce-845b-b53a8bb522bc/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-12 00:49:49,644 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:49:50,323 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:49:50,325 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca162c7-83f4-43ce-845b-b53a8bb522bc/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-12 00:49:50,395 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca162c7-83f4-43ce-845b-b53a8bb522bc/bin/utaipan-verify-NcY6lQBIFX/data/cd79cd5af/57736e938e1a47b7a29b568c7adb82ae/FLAG5586d207c [2023-11-12 00:49:50,414 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca162c7-83f4-43ce-845b-b53a8bb522bc/bin/utaipan-verify-NcY6lQBIFX/data/cd79cd5af/57736e938e1a47b7a29b568c7adb82ae [2023-11-12 00:49:50,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:49:50,421 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:49:50,426 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:49:50,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:49:50,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:49:50,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:49:50" (1/1) ... [2023-11-12 00:49:50,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31801d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:50, skipping insertion in model container [2023-11-12 00:49:50,434 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:49:50" (1/1) ... [2023-11-12 00:49:50,591 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:49:53,300 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_bca162c7-83f4-43ce-845b-b53a8bb522bc/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2023-11-12 00:49:53,305 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_bca162c7-83f4-43ce-845b-b53a8bb522bc/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2023-11-12 00:49:53,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:49:53,432 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:49:53,542 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] [2023-11-12 00:49:53,544 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] [2023-11-12 00:49:53,545 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5269] [2023-11-12 00:49:53,547 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] [2023-11-12 00:49:53,547 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] [2023-11-12 00:49:53,554 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] [2023-11-12 00:49:53,556 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] [2023-11-12 00:49:53,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7251] [2023-11-12 00:49:53,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7503] [2023-11-12 00:49:53,871 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_bca162c7-83f4-43ce-845b-b53a8bb522bc/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2023-11-12 00:49:53,873 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_bca162c7-83f4-43ce-845b-b53a8bb522bc/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2023-11-12 00:49:53,880 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:49:54,119 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:49:54,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:54 WrapperNode [2023-11-12 00:49:54,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:49:54,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:49:54,122 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:49:54,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:49:54,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:54" (1/1) ... [2023-11-12 00:49:54,233 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:54" (1/1) ... [2023-11-12 00:49:54,409 INFO L138 Inliner]: procedures = 411, calls = 1792, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 4807 [2023-11-12 00:49:54,410 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:49:54,411 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:49:54,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:49:54,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:49:54,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:54" (1/1) ... [2023-11-12 00:49:54,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:54" (1/1) ... [2023-11-12 00:49:54,455 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:54" (1/1) ... [2023-11-12 00:49:54,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:54" (1/1) ... [2023-11-12 00:49:54,565 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:54" (1/1) ... [2023-11-12 00:49:54,589 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:54" (1/1) ... [2023-11-12 00:49:54,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:54" (1/1) ... [2023-11-12 00:49:54,648 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:54" (1/1) ... [2023-11-12 00:49:54,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:49:54,690 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:49:54,690 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:49:54,690 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:49:54,691 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:54" (1/1) ... [2023-11-12 00:49:54,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:49:54,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca162c7-83f4-43ce-845b-b53a8bb522bc/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:49:54,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca162c7-83f4-43ce-845b-b53a8bb522bc/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:49:54,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca162c7-83f4-43ce-845b-b53a8bb522bc/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:49:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_92 [2023-11-12 00:49:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_92 [2023-11-12 00:49:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-12 00:49:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-12 00:49:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:49:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:49:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-12 00:49:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-12 00:49:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 00:49:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 00:49:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:49:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:49:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 00:49:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 00:49:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-12 00:49:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-12 00:49:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-12 00:49:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-12 00:49:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-12 00:49:54,785 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-12 00:49:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2023-11-12 00:49:54,787 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2023-11-12 00:49:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2023-11-12 00:49:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2023-11-12 00:49:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-12 00:49:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-12 00:49:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:49:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:49:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-12 00:49:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-12 00:49:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-12 00:49:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-12 00:49:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 00:49:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 00:49:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:49:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:49:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-12 00:49:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-12 00:49:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:49:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2023-11-12 00:49:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2023-11-12 00:49:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:49:54,791 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:49:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-12 00:49:54,791 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-12 00:49:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:49:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:49:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:49:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:49:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:49:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:49:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2023-11-12 00:49:54,793 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2023-11-12 00:49:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2023-11-12 00:49:54,794 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2023-11-12 00:49:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:49:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2023-11-12 00:49:54,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2023-11-12 00:49:54,795 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 00:49:54,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 00:49:54,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:49:54,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:49:54,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-12 00:49:54,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-12 00:49:54,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 00:49:54,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 00:49:54,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-12 00:49:54,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-12 00:49:54,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-12 00:49:54,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-12 00:49:54,798 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-12 00:49:54,798 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-12 00:49:54,798 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-12 00:49:54,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-12 00:49:54,799 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2023-11-12 00:49:54,799 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2023-11-12 00:49:54,799 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2023-11-12 00:49:54,800 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2023-11-12 00:49:54,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:49:54,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 00:49:54,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 00:49:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 00:49:54,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 00:49:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:49:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2023-11-12 00:49:54,801 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2023-11-12 00:49:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:49:54,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:49:54,802 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 00:49:54,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 00:49:54,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:49:54,802 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:49:54,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:49:54,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-12 00:49:54,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-12 00:49:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-12 00:49:54,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-12 00:49:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-12 00:49:54,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-12 00:49:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:49:54,804 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:49:54,804 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-12 00:49:54,804 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-12 00:49:54,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 00:49:54,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 00:49:54,805 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-11-12 00:49:54,805 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-11-12 00:49:54,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:49:54,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:49:54,806 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2023-11-12 00:49:54,807 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2023-11-12 00:49:54,807 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2023-11-12 00:49:54,807 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2023-11-12 00:49:54,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:49:54,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:49:54,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:49:54,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:49:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-12 00:49:54,808 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-12 00:49:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2023-11-12 00:49:54,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2023-11-12 00:49:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-12 00:49:54,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-12 00:49:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-12 00:49:54,809 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-12 00:49:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-12 00:49:54,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-12 00:49:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 00:49:54,810 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 00:49:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-12 00:49:54,810 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-12 00:49:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2023-11-12 00:49:54,811 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2023-11-12 00:49:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2023-11-12 00:49:54,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2023-11-12 00:49:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-12 00:49:54,811 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-12 00:49:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:49:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-12 00:49:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-12 00:49:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:49:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-12 00:49:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-12 00:49:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:49:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:49:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:49:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:49:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:49:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:49:54,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:49:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2023-11-12 00:49:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2023-11-12 00:49:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 00:49:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 00:49:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2023-11-12 00:49:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2023-11-12 00:49:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2023-11-12 00:49:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2023-11-12 00:49:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2023-11-12 00:49:54,828 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2023-11-12 00:49:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2023-11-12 00:49:54,828 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2023-11-12 00:49:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:49:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:49:54,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:49:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2023-11-12 00:49:54,829 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2023-11-12 00:49:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2023-11-12 00:49:54,829 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2023-11-12 00:49:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:49:54,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:49:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-12 00:49:54,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-12 00:49:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-12 00:49:54,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-12 00:49:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2023-11-12 00:49:54,830 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2023-11-12 00:49:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:49:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:49:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:49:55,634 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:49:55,638 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:49:56,173 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:49:59,803 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:49:59,904 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:50:02,626 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:50:02,626 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:50:02,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:50:02 BoogieIcfgContainer [2023-11-12 00:50:02,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:50:02,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:50:02,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:50:02,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:50:02,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:49:50" (1/3) ... [2023-11-12 00:50:02,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a30461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:50:02, skipping insertion in model container [2023-11-12 00:50:02,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:54" (2/3) ... [2023-11-12 00:50:02,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a30461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:50:02, skipping insertion in model container [2023-11-12 00:50:02,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:50:02" (3/3) ... [2023-11-12 00:50:02,643 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-12 00:50:02,664 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:50:02,664 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:50:02,769 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:50:02,777 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;@71c07e8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:50:02,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:50:02,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 1199 states, 686 states have (on average 1.2915451895043732) internal successors, (886), 707 states have internal predecessors, (886), 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) [2023-11-12 00:50:02,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-12 00:50:02,841 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:50:02,842 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] [2023-11-12 00:50:02,842 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:50:02,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:50:02,850 INFO L85 PathProgramCache]: Analyzing trace with hash -767818094, now seen corresponding path program 1 times [2023-11-12 00:50:02,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:50:02,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638849143] [2023-11-12 00:50:02,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:50:02,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:50:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:50:04,019 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-12 00:50:04,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:50:04,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638849143] [2023-11-12 00:50:04,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638849143] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:50:04,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:50:04,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:50:04,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701366052] [2023-11-12 00:50:04,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:50:04,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:50:04,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:50:04,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:50:04,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:50:04,076 INFO L87 Difference]: Start difference. First operand has 1199 states, 686 states have (on average 1.2915451895043732) internal successors, (886), 707 states have internal predecessors, (886), 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 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2023-11-12 00:50:06,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:50:06,708 INFO L93 Difference]: Finished difference Result 3512 states and 5148 transitions. [2023-11-12 00:50:06,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:50:06,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 159 [2023-11-12 00:50:06,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:50:06,759 INFO L225 Difference]: With dead ends: 3512 [2023-11-12 00:50:06,759 INFO L226 Difference]: Without dead ends: 2259 [2023-11-12 00:50:06,778 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 [2023-11-12 00:50:06,782 INFO L413 NwaCegarLoop]: 1506 mSDtfsCounter, 1685 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 2958 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:50:06,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 2958 Invalid, 510 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-12 00:50:06,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2259 states. [2023-11-12 00:50:07,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2259 to 2255. [2023-11-12 00:50:07,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 1318 states have (on average 1.287556904400607) internal successors, (1697), 1361 states have internal predecessors, (1697), 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) [2023-11-12 00:50:07,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3260 transitions. [2023-11-12 00:50:07,061 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3260 transitions. Word has length 159 [2023-11-12 00:50:07,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:50:07,062 INFO L495 AbstractCegarLoop]: Abstraction has 2255 states and 3260 transitions. [2023-11-12 00:50:07,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2023-11-12 00:50:07,063 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3260 transitions. [2023-11-12 00:50:07,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-12 00:50:07,072 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:50:07,072 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] [2023-11-12 00:50:07,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:50:07,073 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:50:07,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:50:07,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1125678946, now seen corresponding path program 1 times [2023-11-12 00:50:07,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:50:07,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469738783] [2023-11-12 00:50:07,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:50:07,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:50:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:50:07,626 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-12 00:50:07,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:50:07,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469738783] [2023-11-12 00:50:07,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469738783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:50:07,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:50:07,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:50:07,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964130932] [2023-11-12 00:50:07,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:50:07,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:50:07,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:50:07,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:50:07,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:50:07,631 INFO L87 Difference]: Start difference. First operand 2255 states and 3260 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2023-11-12 00:50:10,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:50:10,476 INFO L93 Difference]: Finished difference Result 6008 states and 8673 transitions. [2023-11-12 00:50:10,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:50:10,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 168 [2023-11-12 00:50:10,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:50:10,512 INFO L225 Difference]: With dead ends: 6008 [2023-11-12 00:50:10,513 INFO L226 Difference]: Without dead ends: 3772 [2023-11-12 00:50:10,527 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 [2023-11-12 00:50:10,528 INFO L413 NwaCegarLoop]: 1542 mSDtfsCounter, 1077 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 2932 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:50:10,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 2932 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-12 00:50:10,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3772 states. [2023-11-12 00:50:10,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3772 to 3768. [2023-11-12 00:50:10,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3768 states, 2241 states have (on average 1.2891566265060241) internal successors, (2889), 2308 states have internal predecessors, (2889), 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) [2023-11-12 00:50:10,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 5408 transitions. [2023-11-12 00:50:10,888 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 5408 transitions. Word has length 168 [2023-11-12 00:50:10,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:50:10,892 INFO L495 AbstractCegarLoop]: Abstraction has 3768 states and 5408 transitions. [2023-11-12 00:50:10,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2023-11-12 00:50:10,892 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 5408 transitions. [2023-11-12 00:50:10,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-12 00:50:10,898 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:50:10,898 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] [2023-11-12 00:50:10,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:50:10,899 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:50:10,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:50:10,900 INFO L85 PathProgramCache]: Analyzing trace with hash 2009473600, now seen corresponding path program 1 times [2023-11-12 00:50:10,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:50:10,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398820009] [2023-11-12 00:50:10,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:50:10,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:50:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:50:11,209 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-12 00:50:11,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:50:11,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398820009] [2023-11-12 00:50:11,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398820009] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:50:11,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:50:11,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:50:11,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557943683] [2023-11-12 00:50:11,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:50:11,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:50:11,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:50:11,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:50:11,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:50:11,214 INFO L87 Difference]: Start difference. First operand 3768 states and 5408 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, (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) [2023-11-12 00:50:14,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:50:14,447 INFO L93 Difference]: Finished difference Result 10662 states and 15255 transitions. [2023-11-12 00:50:14,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:50:14,448 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, (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 169 [2023-11-12 00:50:14,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:50:14,518 INFO L225 Difference]: With dead ends: 10662 [2023-11-12 00:50:14,519 INFO L226 Difference]: Without dead ends: 6913 [2023-11-12 00:50:14,547 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 [2023-11-12 00:50:14,553 INFO L413 NwaCegarLoop]: 1431 mSDtfsCounter, 1473 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:50:14,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 2808 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-12 00:50:14,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6913 states. [2023-11-12 00:50:15,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 6908. [2023-11-12 00:50:15,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6908 states, 4084 states have (on average 1.2781586679725758) internal successors, (5220), 4205 states have internal predecessors, (5220), 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) [2023-11-12 00:50:15,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6908 states to 6908 states and 9851 transitions. [2023-11-12 00:50:15,162 INFO L78 Accepts]: Start accepts. Automaton has 6908 states and 9851 transitions. Word has length 169 [2023-11-12 00:50:15,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:50:15,163 INFO L495 AbstractCegarLoop]: Abstraction has 6908 states and 9851 transitions. [2023-11-12 00:50:15,163 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, (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) [2023-11-12 00:50:15,163 INFO L276 IsEmpty]: Start isEmpty. Operand 6908 states and 9851 transitions. [2023-11-12 00:50:15,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-11-12 00:50:15,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:50:15,173 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] [2023-11-12 00:50:15,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:50:15,173 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:50:15,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:50:15,175 INFO L85 PathProgramCache]: Analyzing trace with hash 667186974, now seen corresponding path program 1 times [2023-11-12 00:50:15,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:50:15,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135878787] [2023-11-12 00:50:15,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:50:15,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:50:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:50:15,688 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-11-12 00:50:15,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:50:15,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135878787] [2023-11-12 00:50:15,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135878787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:50:15,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:50:15,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:50:15,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701737263] [2023-11-12 00:50:15,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:50:15,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:50:15,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:50:15,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:50:15,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:50:15,692 INFO L87 Difference]: Start difference. First operand 6908 states and 9851 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2023-11-12 00:50:17,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:50:17,234 INFO L93 Difference]: Finished difference Result 13789 states and 19666 transitions. [2023-11-12 00:50:17,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:50:17,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 224 [2023-11-12 00:50:17,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:50:17,293 INFO L225 Difference]: With dead ends: 13789 [2023-11-12 00:50:17,294 INFO L226 Difference]: Without dead ends: 6900 [2023-11-12 00:50:17,328 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 [2023-11-12 00:50:17,332 INFO L413 NwaCegarLoop]: 1416 mSDtfsCounter, 1628 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1628 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:50:17,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1628 Valid, 1416 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-12 00:50:17,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6900 states. [2023-11-12 00:50:17,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6900 to 6900. [2023-11-12 00:50:17,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6900 states, 4076 states have (on average 1.2708537782139353) internal successors, (5180), 4197 states have internal predecessors, (5180), 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) [2023-11-12 00:50:17,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6900 states to 6900 states and 9811 transitions. [2023-11-12 00:50:17,944 INFO L78 Accepts]: Start accepts. Automaton has 6900 states and 9811 transitions. Word has length 224 [2023-11-12 00:50:17,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:50:17,945 INFO L495 AbstractCegarLoop]: Abstraction has 6900 states and 9811 transitions. [2023-11-12 00:50:17,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2023-11-12 00:50:17,946 INFO L276 IsEmpty]: Start isEmpty. Operand 6900 states and 9811 transitions. [2023-11-12 00:50:17,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-11-12 00:50:17,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:50:17,955 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] [2023-11-12 00:50:17,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:50:17,956 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:50:17,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:50:17,957 INFO L85 PathProgramCache]: Analyzing trace with hash 657046662, now seen corresponding path program 1 times [2023-11-12 00:50:17,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:50:17,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997459545] [2023-11-12 00:50:17,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:50:17,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:50:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:50:18,356 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-11-12 00:50:18,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:50:18,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997459545] [2023-11-12 00:50:18,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997459545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:50:18,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:50:18,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:50:18,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772975711] [2023-11-12 00:50:18,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:50:18,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:50:18,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:50:18,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:50:18,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:50:18,359 INFO L87 Difference]: Start difference. First operand 6900 states and 9811 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) [2023-11-12 00:50:22,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:50:22,831 INFO L93 Difference]: Finished difference Result 16441 states and 23371 transitions. [2023-11-12 00:50:22,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:50:22,831 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 [2023-11-12 00:50:22,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:50:22,932 INFO L225 Difference]: With dead ends: 16441 [2023-11-12 00:50:22,932 INFO L226 Difference]: Without dead ends: 9560 [2023-11-12 00:50:22,967 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 [2023-11-12 00:50:22,968 INFO L413 NwaCegarLoop]: 2319 mSDtfsCounter, 1082 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 3696 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-12 00:50:22,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 3696 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-12 00:50:22,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9560 states. [2023-11-12 00:50:23,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9560 to 9554. [2023-11-12 00:50:23,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9554 states, 5676 states have (on average 1.2692036645525018) internal successors, (7204), 5835 states have internal predecessors, (7204), 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) [2023-11-12 00:50:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9554 states to 9554 states and 13523 transitions. [2023-11-12 00:50:23,758 INFO L78 Accepts]: Start accepts. Automaton has 9554 states and 13523 transitions. Word has length 226 [2023-11-12 00:50:23,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:50:23,759 INFO L495 AbstractCegarLoop]: Abstraction has 9554 states and 13523 transitions. [2023-11-12 00:50:23,759 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) [2023-11-12 00:50:23,759 INFO L276 IsEmpty]: Start isEmpty. Operand 9554 states and 13523 transitions. [2023-11-12 00:50:23,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-11-12 00:50:23,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:50:23,775 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] [2023-11-12 00:50:23,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:50:23,775 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:50:23,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:50:23,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2072674005, now seen corresponding path program 1 times [2023-11-12 00:50:23,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:50:23,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244337972] [2023-11-12 00:50:23,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:50:23,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:50:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:50:24,795 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2023-11-12 00:50:24,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:50:24,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244337972] [2023-11-12 00:50:24,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244337972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:50:24,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:50:24,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:50:24,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631719439] [2023-11-12 00:50:24,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:50:24,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:50:24,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:50:24,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:50:24,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:50:24,801 INFO L87 Difference]: Start difference. First operand 9554 states and 13523 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2023-11-12 00:50:28,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:50:28,614 INFO L93 Difference]: Finished difference Result 21861 states and 30947 transitions. [2023-11-12 00:50:28,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:50:28,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) Word has length 288 [2023-11-12 00:50:28,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:50:28,692 INFO L225 Difference]: With dead ends: 21861 [2023-11-12 00:50:28,692 INFO L226 Difference]: Without dead ends: 12326 [2023-11-12 00:50:28,733 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 [2023-11-12 00:50:28,734 INFO L413 NwaCegarLoop]: 2337 mSDtfsCounter, 1392 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 3507 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:50:28,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 3507 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-12 00:50:28,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12326 states. [2023-11-12 00:50:29,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12326 to 12320. [2023-11-12 00:50:29,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12320 states, 7347 states have (on average 1.2685449843473526) internal successors, (9320), 7547 states have internal predecessors, (9320), 4034 states have call successors, (4034), 943 states have call predecessors, (4034), 938 states have return successors, (4041), 3958 states have call predecessors, (4041), 4034 states have call successors, (4041) [2023-11-12 00:50:29,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12320 states to 12320 states and 17395 transitions. [2023-11-12 00:50:29,647 INFO L78 Accepts]: Start accepts. Automaton has 12320 states and 17395 transitions. Word has length 288 [2023-11-12 00:50:29,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:50:29,649 INFO L495 AbstractCegarLoop]: Abstraction has 12320 states and 17395 transitions. [2023-11-12 00:50:29,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2023-11-12 00:50:29,649 INFO L276 IsEmpty]: Start isEmpty. Operand 12320 states and 17395 transitions. [2023-11-12 00:50:29,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2023-11-12 00:50:29,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:50:29,665 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 9, 9, 9, 9, 9, 9, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:50:29,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 00:50:29,665 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:50:29,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:50:29,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1019449285, now seen corresponding path program 1 times [2023-11-12 00:50:29,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:50:29,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141625078] [2023-11-12 00:50:29,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:50:29,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:50:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:50:30,304 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2023-11-12 00:50:30,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:50:30,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141625078] [2023-11-12 00:50:30,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141625078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:50:30,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:50:30,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:50:30,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362786858] [2023-11-12 00:50:30,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:50:30,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:50:30,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:50:30,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:50:30,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:50:30,313 INFO L87 Difference]: Start difference. First operand 12320 states and 17395 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53)