./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 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4874ecb-4998-4b1b-990b-0e30632bdc9c/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4874ecb-4998-4b1b-990b-0e30632bdc9c/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4874ecb-4998-4b1b-990b-0e30632bdc9c/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4874ecb-4998-4b1b-990b-0e30632bdc9c/bin/utaipan-verify-mE87zJ7Ire/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_a4874ecb-4998-4b1b-990b-0e30632bdc9c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4874ecb-4998-4b1b-990b-0e30632bdc9c/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:22:44,973 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:22:45,096 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4874ecb-4998-4b1b-990b-0e30632bdc9c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:22:45,106 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:22:45,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:22:45,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:22:45,140 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:22:45,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:22:45,142 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:22:45,148 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:22:45,149 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:22:45,149 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:22:45,150 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:22:45,152 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:22:45,152 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:22:45,153 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:22:45,153 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:22:45,154 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:22:45,154 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:22:45,157 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:22:45,157 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:22:45,158 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:22:45,159 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:22:45,160 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:22:45,161 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:22:45,161 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:22:45,162 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:22:45,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:22:45,163 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:22:45,163 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:22:45,165 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:22:45,165 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:22:45,165 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:22:45,166 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:22:45,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:22:45,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:22:45,167 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:22:45,167 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:22:45,167 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:22:45,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:22:45,168 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:22:45,169 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:22:45,169 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:22:45,169 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:22:45,170 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_a4874ecb-4998-4b1b-990b-0e30632bdc9c/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4874ecb-4998-4b1b-990b-0e30632bdc9c/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f [2023-11-23 21:22:45,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:22:45,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:22:45,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:22:45,521 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:22:45,522 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:22:45,523 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4874ecb-4998-4b1b-990b-0e30632bdc9c/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-23 21:22:48,789 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:22:49,637 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:22:49,638 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4874ecb-4998-4b1b-990b-0e30632bdc9c/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-23 21:22:49,698 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4874ecb-4998-4b1b-990b-0e30632bdc9c/bin/utaipan-verify-mE87zJ7Ire/data/f3fe61799/e87aeaee4e3a4f7e90da2e5e7dd14260/FLAGec29c2efa [2023-11-23 21:22:49,721 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4874ecb-4998-4b1b-990b-0e30632bdc9c/bin/utaipan-verify-mE87zJ7Ire/data/f3fe61799/e87aeaee4e3a4f7e90da2e5e7dd14260 [2023-11-23 21:22:49,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:22:49,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:22:49,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:22:49,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:22:49,745 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:22:49,746 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:22:49" (1/1) ... [2023-11-23 21:22:49,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f77e1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:49, skipping insertion in model container [2023-11-23 21:22:49,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:22:49" (1/1) ... [2023-11-23 21:22:49,938 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:22:53,212 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_a4874ecb-4998-4b1b-990b-0e30632bdc9c/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2023-11-23 21:22:53,217 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_a4874ecb-4998-4b1b-990b-0e30632bdc9c/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2023-11-23 21:22:53,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:22:53,316 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:22:53,505 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] [2023-11-23 21:22:53,507 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] [2023-11-23 21:22:53,507 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5269] [2023-11-23 21:22:53,509 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] [2023-11-23 21:22:53,510 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] [2023-11-23 21:22:53,522 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] [2023-11-23 21:22:53,524 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] [2023-11-23 21:22:53,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7251] [2023-11-23 21:22:53,655 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7503] [2023-11-23 21:22:53,811 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_a4874ecb-4998-4b1b-990b-0e30632bdc9c/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2023-11-23 21:22:53,812 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_a4874ecb-4998-4b1b-990b-0e30632bdc9c/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2023-11-23 21:22:53,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:22:54,045 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:22:54,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:54 WrapperNode [2023-11-23 21:22:54,046 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:22:54,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:22:54,048 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:22:54,048 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:22:54,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:54" (1/1) ... [2023-11-23 21:22:54,184 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:54" (1/1) ... [2023-11-23 21:22:54,506 INFO L138 Inliner]: procedures = 411, calls = 1792, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 4807 [2023-11-23 21:22:54,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:22:54,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:22:54,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:22:54,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:22:54,520 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:54" (1/1) ... [2023-11-23 21:22:54,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:54" (1/1) ... [2023-11-23 21:22:54,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:54" (1/1) ... [2023-11-23 21:22:54,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:54" (1/1) ... [2023-11-23 21:22:54,826 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:54" (1/1) ... [2023-11-23 21:22:54,867 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:54" (1/1) ... [2023-11-23 21:22:54,907 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:54" (1/1) ... [2023-11-23 21:22:54,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:54" (1/1) ... [2023-11-23 21:22:54,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:22:54,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:22:54,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:22:54,981 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:22:54,982 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:54" (1/1) ... [2023-11-23 21:22:54,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:22:55,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4874ecb-4998-4b1b-990b-0e30632bdc9c/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:55,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4874ecb-4998-4b1b-990b-0e30632bdc9c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:22:55,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4874ecb-4998-4b1b-990b-0e30632bdc9c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:22:55,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_92 [2023-11-23 21:22:55,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_92 [2023-11-23 21:22:55,069 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:22:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:22:55,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:22:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:22:55,070 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-23 21:22:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-23 21:22:55,071 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:22:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:22:55,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:22:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:22:55,072 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:22:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:22:55,072 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-23 21:22:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-23 21:22:55,072 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-23 21:22:55,073 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-23 21:22:55,073 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-23 21:22:55,073 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-23 21:22:55,073 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2023-11-23 21:22:55,074 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2023-11-23 21:22:55,074 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2023-11-23 21:22:55,074 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2023-11-23 21:22:55,074 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 21:22:55,074 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 21:22:55,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:22:55,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:22:55,075 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 21:22:55,075 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 21:22:55,075 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-23 21:22:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-23 21:22:55,076 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 21:22:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 21:22:55,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:22:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:22:55,077 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-23 21:22:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-23 21:22:55,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:22:55,077 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2023-11-23 21:22:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2023-11-23 21:22:55,078 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:22:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:22:55,078 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-23 21:22:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-23 21:22:55,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:22:55,078 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:22:55,079 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:22:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:22:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:22:55,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:22:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2023-11-23 21:22:55,080 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2023-11-23 21:22:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2023-11-23 21:22:55,080 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2023-11-23 21:22:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:22:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2023-11-23 21:22:55,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2023-11-23 21:22:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:22:55,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:22:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:22:55,081 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:22:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-23 21:22:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-23 21:22:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 21:22:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 21:22:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 21:22:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 21:22:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:22:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:22:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-23 21:22:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-23 21:22:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 21:22:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 21:22:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2023-11-23 21:22:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2023-11-23 21:22:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2023-11-23 21:22:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2023-11-23 21:22:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:22:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 21:22:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 21:22:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 21:22:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 21:22:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:22:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2023-11-23 21:22:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2023-11-23 21:22:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:22:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:22:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:22:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:22:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:22:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:22:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:22:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-23 21:22:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-23 21:22:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-23 21:22:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-23 21:22:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-23 21:22:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-23 21:22:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:22:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:22:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 21:22:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 21:22:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 21:22:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 21:22:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-11-23 21:22:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-11-23 21:22:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:22:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:22:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2023-11-23 21:22:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2023-11-23 21:22:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2023-11-23 21:22:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2023-11-23 21:22:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:22:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:22:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:22:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:22:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-23 21:22:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-23 21:22:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2023-11-23 21:22:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2023-11-23 21:22:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-23 21:22:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-23 21:22:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 21:22:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 21:22:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-23 21:22:55,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-23 21:22:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:22:55,093 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:22:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-23 21:22:55,094 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-23 21:22:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2023-11-23 21:22:55,094 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2023-11-23 21:22:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2023-11-23 21:22:55,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2023-11-23 21:22:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 21:22:55,095 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 21:22:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:22:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 21:22:55,095 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 21:22:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:22:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-23 21:22:55,096 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-23 21:22:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:22:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:22:55,096 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:22:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:22:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:22:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:22:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:22:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2023-11-23 21:22:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2023-11-23 21:22:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:22:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:22:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2023-11-23 21:22:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2023-11-23 21:22:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2023-11-23 21:22:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2023-11-23 21:22:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2023-11-23 21:22:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2023-11-23 21:22:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2023-11-23 21:22:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2023-11-23 21:22:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:22:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:22:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:22:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2023-11-23 21:22:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2023-11-23 21:22:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2023-11-23 21:22:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2023-11-23 21:22:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:22:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:22:55,101 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-23 21:22:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-23 21:22:55,101 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-23 21:22:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-23 21:22:55,101 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2023-11-23 21:22:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2023-11-23 21:22:55,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:22:55,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 21:22:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 21:22:56,001 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:22:56,013 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:22:56,601 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:23:00,175 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 21:23:00,307 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:23:02,859 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:23:02,860 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:23:02,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:02 BoogieIcfgContainer [2023-11-23 21:23:02,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:23:02,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:23:02,868 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:23:02,871 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:23:02,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:22:49" (1/3) ... [2023-11-23 21:23:02,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee664bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:23:02, skipping insertion in model container [2023-11-23 21:23:02,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:54" (2/3) ... [2023-11-23 21:23:02,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee664bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:23:02, skipping insertion in model container [2023-11-23 21:23:02,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:02" (3/3) ... [2023-11-23 21:23:02,877 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-23 21:23:02,903 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:23:02,903 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:23:03,036 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:23:03,048 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;@74a7e480, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:23:03,048 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:23:03,063 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) [2023-11-23 21:23:03,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-23 21:23:03,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:03,127 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] [2023-11-23 21:23:03,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:03,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:03,134 INFO L85 PathProgramCache]: Analyzing trace with hash 859539245, now seen corresponding path program 1 times [2023-11-23 21:23:03,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:03,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299801149] [2023-11-23 21:23:03,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:03,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:04,391 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-23 21:23:04,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:04,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299801149] [2023-11-23 21:23:04,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299801149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:04,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:04,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:23:04,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273178823] [2023-11-23 21:23:04,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:04,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:23:04,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:04,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:23:04,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:04,444 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) [2023-11-23 21:23:07,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:07,265 INFO L93 Difference]: Finished difference Result 3512 states and 5148 transitions. [2023-11-23 21:23:07,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:23:07,268 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 [2023-11-23 21:23:07,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:07,313 INFO L225 Difference]: With dead ends: 3512 [2023-11-23 21:23:07,313 INFO L226 Difference]: Without dead ends: 2259 [2023-11-23 21:23:07,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:07,334 INFO L413 NwaCegarLoop]: 1506 mSDtfsCounter, 1685 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 2958 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:07,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 2958 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-23 21:23:07,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2259 states. [2023-11-23 21:23:07,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2259 to 2255. [2023-11-23 21:23:07,656 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) [2023-11-23 21:23:07,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3260 transitions. [2023-11-23 21:23:07,693 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3260 transitions. Word has length 159 [2023-11-23 21:23:07,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:07,696 INFO L495 AbstractCegarLoop]: Abstraction has 2255 states and 3260 transitions. [2023-11-23 21:23:07,696 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) [2023-11-23 21:23:07,697 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3260 transitions. [2023-11-23 21:23:07,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-23 21:23:07,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:07,718 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] [2023-11-23 21:23:07,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:23:07,719 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:07,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:07,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1414605661, now seen corresponding path program 1 times [2023-11-23 21:23:07,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:07,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687344552] [2023-11-23 21:23:07,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:07,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:08,280 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-23 21:23:08,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:08,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687344552] [2023-11-23 21:23:08,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687344552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:08,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:08,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:23:08,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41801104] [2023-11-23 21:23:08,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:08,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:23:08,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:08,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:23:08,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:08,294 INFO L87 Difference]: Start difference. First operand 2255 states and 3260 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) [2023-11-23 21:23:11,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:11,228 INFO L93 Difference]: Finished difference Result 6515 states and 9397 transitions. [2023-11-23 21:23:11,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:23:11,229 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 [2023-11-23 21:23:11,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:11,279 INFO L225 Difference]: With dead ends: 6515 [2023-11-23 21:23:11,280 INFO L226 Difference]: Without dead ends: 4279 [2023-11-23 21:23:11,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:11,301 INFO L413 NwaCegarLoop]: 1431 mSDtfsCounter, 1473 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:11,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 2808 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-23 21:23:11,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4279 states. [2023-11-23 21:23:11,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4279 to 4274. [2023-11-23 21:23:11,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4274 states, 2488 states have (on average 1.279742765273312) internal successors, (3184), 2571 states have internal predecessors, (3184), 1480 states have call successors, (1480), 310 states have call predecessors, (1480), 305 states have return successors, (1487), 1442 states have call predecessors, (1487), 1480 states have call successors, (1487) [2023-11-23 21:23:11,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4274 states to 4274 states and 6151 transitions. [2023-11-23 21:23:11,975 INFO L78 Accepts]: Start accepts. Automaton has 4274 states and 6151 transitions. Word has length 169 [2023-11-23 21:23:11,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:11,978 INFO L495 AbstractCegarLoop]: Abstraction has 4274 states and 6151 transitions. [2023-11-23 21:23:11,979 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) [2023-11-23 21:23:11,979 INFO L276 IsEmpty]: Start isEmpty. Operand 4274 states and 6151 transitions. [2023-11-23 21:23:11,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-23 21:23:11,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:11,987 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] [2023-11-23 21:23:11,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:23:11,988 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:12,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:12,001 INFO L85 PathProgramCache]: Analyzing trace with hash 704445342, now seen corresponding path program 1 times [2023-11-23 21:23:12,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:12,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536451903] [2023-11-23 21:23:12,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:12,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:12,495 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-23 21:23:12,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:12,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536451903] [2023-11-23 21:23:12,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536451903] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:12,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:12,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:23:12,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139197159] [2023-11-23 21:23:12,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:12,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:23:12,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:12,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:23:12,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:12,500 INFO L87 Difference]: Start difference. First operand 4274 states and 6151 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) [2023-11-23 21:23:15,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:15,349 INFO L93 Difference]: Finished difference Result 11169 states and 16039 transitions. [2023-11-23 21:23:15,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:23:15,350 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 [2023-11-23 21:23:15,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:15,430 INFO L225 Difference]: With dead ends: 11169 [2023-11-23 21:23:15,430 INFO L226 Difference]: Without dead ends: 6914 [2023-11-23 21:23:15,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:15,469 INFO L413 NwaCegarLoop]: 1897 mSDtfsCounter, 1077 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:15,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 3287 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-23 21:23:15,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6914 states. [2023-11-23 21:23:16,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6914 to 6908. [2023-11-23 21:23:16,142 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) [2023-11-23 21:23:16,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6908 states to 6908 states and 9851 transitions. [2023-11-23 21:23:16,207 INFO L78 Accepts]: Start accepts. Automaton has 6908 states and 9851 transitions. Word has length 168 [2023-11-23 21:23:16,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:16,208 INFO L495 AbstractCegarLoop]: Abstraction has 6908 states and 9851 transitions. [2023-11-23 21:23:16,210 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) [2023-11-23 21:23:16,210 INFO L276 IsEmpty]: Start isEmpty. Operand 6908 states and 9851 transitions. [2023-11-23 21:23:16,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-11-23 21:23:16,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:16,221 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] [2023-11-23 21:23:16,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:23:16,222 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:16,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:16,223 INFO L85 PathProgramCache]: Analyzing trace with hash 495066065, now seen corresponding path program 1 times [2023-11-23 21:23:16,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:16,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042673193] [2023-11-23 21:23:16,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:16,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:16,815 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-11-23 21:23:16,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:16,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042673193] [2023-11-23 21:23:16,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042673193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:16,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:16,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:23:16,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373711033] [2023-11-23 21:23:16,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:16,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:23:16,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:16,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:23:16,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:16,820 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) [2023-11-23 21:23:18,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:18,673 INFO L93 Difference]: Finished difference Result 13789 states and 19666 transitions. [2023-11-23 21:23:18,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:23:18,674 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 [2023-11-23 21:23:18,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:18,734 INFO L225 Difference]: With dead ends: 13789 [2023-11-23 21:23:18,735 INFO L226 Difference]: Without dead ends: 6900 [2023-11-23 21:23:18,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:18,779 INFO L413 NwaCegarLoop]: 1416 mSDtfsCounter, 1628 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:18,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1628 Valid, 1416 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 21:23:18,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6900 states. [2023-11-23 21:23:19,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6900 to 6900. [2023-11-23 21:23:19,290 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) [2023-11-23 21:23:19,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6900 states to 6900 states and 9811 transitions. [2023-11-23 21:23:19,340 INFO L78 Accepts]: Start accepts. Automaton has 6900 states and 9811 transitions. Word has length 224 [2023-11-23 21:23:19,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:19,342 INFO L495 AbstractCegarLoop]: Abstraction has 6900 states and 9811 transitions. [2023-11-23 21:23:19,343 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) [2023-11-23 21:23:19,343 INFO L276 IsEmpty]: Start isEmpty. Operand 6900 states and 9811 transitions. [2023-11-23 21:23:19,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-11-23 21:23:19,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:19,354 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] [2023-11-23 21:23:19,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:23:19,355 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:19,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:19,355 INFO L85 PathProgramCache]: Analyzing trace with hash -236484057, now seen corresponding path program 1 times [2023-11-23 21:23:19,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:19,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187962902] [2023-11-23 21:23:19,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:19,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-11-23 21:23:19,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:19,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187962902] [2023-11-23 21:23:19,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187962902] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:19,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:19,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:23:19,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835149682] [2023-11-23 21:23:19,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:19,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:23:19,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:19,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:23:19,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:19,870 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) [2023-11-23 21:23:24,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:24,274 INFO L93 Difference]: Finished difference Result 16441 states and 23371 transitions. [2023-11-23 21:23:24,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:23:24,275 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 [2023-11-23 21:23:24,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:24,390 INFO L225 Difference]: With dead ends: 16441 [2023-11-23 21:23:24,390 INFO L226 Difference]: Without dead ends: 9560 [2023-11-23 21:23:24,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:24,442 INFO L413 NwaCegarLoop]: 2319 mSDtfsCounter, 1082 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s 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, 3.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:24,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 3696 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-23 21:23:24,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9560 states. [2023-11-23 21:23:25,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9560 to 9554. [2023-11-23 21:23:25,150 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) [2023-11-23 21:23:25,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9554 states to 9554 states and 13523 transitions. [2023-11-23 21:23:25,211 INFO L78 Accepts]: Start accepts. Automaton has 9554 states and 13523 transitions. Word has length 226 [2023-11-23 21:23:25,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:25,212 INFO L495 AbstractCegarLoop]: Abstraction has 9554 states and 13523 transitions. [2023-11-23 21:23:25,212 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) [2023-11-23 21:23:25,212 INFO L276 IsEmpty]: Start isEmpty. Operand 9554 states and 13523 transitions. [2023-11-23 21:23:25,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-11-23 21:23:25,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:25,227 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] [2023-11-23 21:23:25,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:23:25,227 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:25,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:25,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1978499099, now seen corresponding path program 1 times [2023-11-23 21:23:25,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:25,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371967957] [2023-11-23 21:23:25,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:25,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:26,142 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2023-11-23 21:23:26,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:26,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371967957] [2023-11-23 21:23:26,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371967957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:26,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:26,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:23:26,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107420291] [2023-11-23 21:23:26,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:26,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:23:26,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:26,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:23:26,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:26,146 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)