./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 527bcce2 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_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.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_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:27:30,581 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:27:30,710 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:27:30,721 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:27:30,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:27:30,761 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:27:30,762 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:27:30,763 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:27:30,765 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:27:30,770 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:27:30,771 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:27:30,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:27:30,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:27:30,775 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:27:30,775 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:27:30,776 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:27:30,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:27:30,777 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:27:30,778 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:27:30,778 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:27:30,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:27:30,780 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:27:30,780 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:27:30,781 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:27:30,782 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:27:30,782 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:27:30,783 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:27:30,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:27:30,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:27:30,784 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:27:30,804 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:27:30,805 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:27:30,805 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:27:30,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:27:30,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:27:30,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:27:30,807 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:27:30,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:27:30,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:27:30,809 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f [2023-11-21 22:27:31,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:27:31,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:27:31,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:27:31,192 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:27:31,192 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:27:31,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-21 22:27:34,536 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:27:35,270 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:27:35,271 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-21 22:27:35,342 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/bin/uautomizer-verify-bycVGegfSx/data/49a25eb54/932302c300cd436a8563fb1b1f540a36/FLAG6a0586a3b [2023-11-21 22:27:35,359 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/bin/uautomizer-verify-bycVGegfSx/data/49a25eb54/932302c300cd436a8563fb1b1f540a36 [2023-11-21 22:27:35,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:27:35,368 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:27:35,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:27:35,370 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:27:35,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:27:35,379 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:27:35" (1/1) ... [2023-11-21 22:27:35,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58fd673a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:35, skipping insertion in model container [2023-11-21 22:27:35,381 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:27:35" (1/1) ... [2023-11-21 22:27:35,632 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:27:38,543 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_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2023-11-21 22:27:38,548 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_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2023-11-21 22:27:38,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:27:38,636 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:27:38,821 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] [2023-11-21 22:27:38,823 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] [2023-11-21 22:27:38,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5269] [2023-11-21 22:27:38,825 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] [2023-11-21 22:27:38,826 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] [2023-11-21 22:27:38,843 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] [2023-11-21 22:27:38,845 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] [2023-11-21 22:27:39,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7251] [2023-11-21 22:27:39,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7503] [2023-11-21 22:27:39,164 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_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2023-11-21 22:27:39,165 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_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2023-11-21 22:27:39,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:27:39,463 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:27:39,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:39 WrapperNode [2023-11-21 22:27:39,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:27:39,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:27:39,466 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:27:39,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:27:39,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:39" (1/1) ... [2023-11-21 22:27:39,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:39" (1/1) ... [2023-11-21 22:27:39,922 INFO L138 Inliner]: procedures = 411, calls = 1792, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 4807 [2023-11-21 22:27:39,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:27:39,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:27:39,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:27:39,924 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:27:39,938 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:39" (1/1) ... [2023-11-21 22:27:39,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:39" (1/1) ... [2023-11-21 22:27:39,962 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:39" (1/1) ... [2023-11-21 22:27:41,215 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memcpy is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 22:27:41,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:39" (1/1) ... [2023-11-21 22:27:41,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:39" (1/1) ... [2023-11-21 22:27:41,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:39" (1/1) ... [2023-11-21 22:27:41,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:39" (1/1) ... [2023-11-21 22:27:41,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:39" (1/1) ... [2023-11-21 22:27:41,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:39" (1/1) ... [2023-11-21 22:27:41,538 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:27:41,541 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:27:41,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:27:41,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:27:41,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:39" (1/1) ... [2023-11-21 22:27:41,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:27:41,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:27:41,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:27:41,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9937e8ac-fe0d-4dd0-a3e4-37f090fd37ca/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:27:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_92 [2023-11-21 22:27:41,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_92 [2023-11-21 22:27:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-21 22:27:41,658 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-21 22:27:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 22:27:41,658 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 22:27:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-21 22:27:41,659 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-21 22:27:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-21 22:27:41,659 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-21 22:27:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:27:41,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:27:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-21 22:27:41,661 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-21 22:27:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-21 22:27:41,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-21 22:27:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-21 22:27:41,663 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-21 22:27:41,663 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-21 22:27:41,663 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-21 22:27:41,663 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2023-11-21 22:27:41,666 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2023-11-21 22:27:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2023-11-21 22:27:41,666 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2023-11-21 22:27:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-21 22:27:41,667 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-21 22:27:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-21 22:27:41,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-21 22:27:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-21 22:27:41,668 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-21 22:27:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-21 22:27:41,668 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-21 22:27:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-21 22:27:41,668 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-21 22:27:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-21 22:27:41,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-21 22:27:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-21 22:27:41,669 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-21 22:27:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:27:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2023-11-21 22:27:41,670 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2023-11-21 22:27:41,670 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-21 22:27:41,670 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-21 22:27:41,670 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-21 22:27:41,670 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-21 22:27:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 22:27:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-21 22:27:41,671 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-21 22:27:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 22:27:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-21 22:27:41,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-21 22:27:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2023-11-21 22:27:41,672 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2023-11-21 22:27:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2023-11-21 22:27:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2023-11-21 22:27:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:27:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2023-11-21 22:27:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2023-11-21 22:27:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-21 22:27:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-21 22:27:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 22:27:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 22:27:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-21 22:27:41,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-21 22:27:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-21 22:27:41,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-21 22:27:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-21 22:27:41,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-21 22:27:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-21 22:27:41,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-21 22:27:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-21 22:27:41,677 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-21 22:27:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-21 22:27:41,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-21 22:27:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2023-11-21 22:27:41,678 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2023-11-21 22:27:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2023-11-21 22:27:41,678 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2023-11-21 22:27:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:27:41,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-21 22:27:41,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-21 22:27:41,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-21 22:27:41,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-21 22:27:41,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:27:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2023-11-21 22:27:41,680 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2023-11-21 22:27:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-21 22:27:41,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-21 22:27:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-21 22:27:41,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-21 22:27:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:27:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 22:27:41,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 22:27:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-21 22:27:41,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-21 22:27:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-21 22:27:41,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-21 22:27:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-21 22:27:41,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-21 22:27:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-21 22:27:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-21 22:27:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-21 22:27:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-21 22:27:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-21 22:27:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-21 22:27:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-11-21 22:27:41,684 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-11-21 22:27:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:27:41,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:27:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2023-11-21 22:27:41,684 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2023-11-21 22:27:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2023-11-21 22:27:41,685 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2023-11-21 22:27:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:27:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:27:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 22:27:41,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 22:27:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-21 22:27:41,686 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-21 22:27:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2023-11-21 22:27:41,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2023-11-21 22:27:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-21 22:27:41,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-21 22:27:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-21 22:27:41,687 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-21 22:27:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-21 22:27:41,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-21 22:27:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-21 22:27:41,688 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-21 22:27:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-21 22:27:41,688 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-21 22:27:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2023-11-21 22:27:41,688 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2023-11-21 22:27:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2023-11-21 22:27:41,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2023-11-21 22:27:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-21 22:27:41,689 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-21 22:27:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:27:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-21 22:27:41,690 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-21 22:27:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:27:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-21 22:27:41,690 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-21 22:27:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:27:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 22:27:41,691 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 22:27:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-21 22:27:41,691 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-21 22:27:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-21 22:27:41,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-21 22:27:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2023-11-21 22:27:41,692 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2023-11-21 22:27:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-21 22:27:41,692 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-21 22:27:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2023-11-21 22:27:41,693 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2023-11-21 22:27:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2023-11-21 22:27:41,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2023-11-21 22:27:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2023-11-21 22:27:41,693 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2023-11-21 22:27:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2023-11-21 22:27:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2023-11-21 22:27:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:27:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 22:27:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 22:27:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2023-11-21 22:27:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2023-11-21 22:27:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2023-11-21 22:27:41,696 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2023-11-21 22:27:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-21 22:27:41,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-21 22:27:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-21 22:27:41,696 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-21 22:27:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-21 22:27:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-21 22:27:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2023-11-21 22:27:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2023-11-21 22:27:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:27:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-21 22:27:41,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-21 22:27:42,593 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:27:42,598 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:27:43,207 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 22:27:46,677 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-21 22:27:46,791 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:27:50,751 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:27:50,752 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:27:50,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:27:50 BoogieIcfgContainer [2023-11-21 22:27:50,754 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:27:50,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:27:50,757 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:27:50,761 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:27:50,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:27:35" (1/3) ... [2023-11-21 22:27:50,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db2857d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:27:50, skipping insertion in model container [2023-11-21 22:27:50,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:39" (2/3) ... [2023-11-21 22:27:50,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db2857d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:27:50, skipping insertion in model container [2023-11-21 22:27:50,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:27:50" (3/3) ... [2023-11-21 22:27:50,764 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-21 22:27:50,785 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:27:50,785 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:27:50,872 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:27:50,881 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=PETRI_NET, 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;@425cc4a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:27:50,881 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:27:50,894 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) [2023-11-21 22:27:50,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-21 22:27:50,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:27:50,958 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] [2023-11-21 22:27:50,958 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:27:50,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:50,966 INFO L85 PathProgramCache]: Analyzing trace with hash 859539245, now seen corresponding path program 1 times [2023-11-21 22:27:50,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:50,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017329399] [2023-11-21 22:27:50,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:50,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:27:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:27:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:27:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:27:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:27:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:27:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:27:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:27:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:27:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:27:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 22:27:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:27:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:27:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:27:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 22:27:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:27:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 22:27:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:27:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-21 22:27:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-21 22:27:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-21 22:27:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-21 22:27:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-21 22:27:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-21 22:27:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-21 22:27:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-21 22:27:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-21 22:27:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-21 22:27:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-21 22:27:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-21 22:27:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:52,824 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-21 22:27:52,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:52,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017329399] [2023-11-21 22:27:52,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017329399] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:52,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:52,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:27:52,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696036482] [2023-11-21 22:27:52,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:52,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:27:52,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:52,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:27:52,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:27:52,891 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 5 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 4 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-21 22:28:03,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:03,347 INFO L93 Difference]: Finished difference Result 3722 states and 5492 transitions. [2023-11-21 22:28:03,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:28:03,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 4 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 159 [2023-11-21 22:28:03,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:03,449 INFO L225 Difference]: With dead ends: 3722 [2023-11-21 22:28:03,449 INFO L226 Difference]: Without dead ends: 2469 [2023-11-21 22:28:03,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:28:03,473 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 2816 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 2873 mSolverCounterSat, 2974 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3079 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 5847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2974 IncrementalHoareTripleChecker+Valid, 2873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:03,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3079 Valid, 2124 Invalid, 5847 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2974 Valid, 2873 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2023-11-21 22:28:03,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2023-11-21 22:28:03,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 2257. [2023-11-21 22:28:03,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2257 states, 1319 states have (on average 1.287338893100834) internal successors, (1698), 1362 states have internal predecessors, (1698), 780 states have call successors, (780), 158 states have call predecessors, (780), 157 states have return successors, (784), 764 states have call predecessors, (784), 780 states have call successors, (784) [2023-11-21 22:28:03,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2257 states to 2257 states and 3262 transitions. [2023-11-21 22:28:03,856 INFO L78 Accepts]: Start accepts. Automaton has 2257 states and 3262 transitions. Word has length 159 [2023-11-21 22:28:03,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:03,858 INFO L495 AbstractCegarLoop]: Abstraction has 2257 states and 3262 transitions. [2023-11-21 22:28:03,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 4 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-21 22:28:03,859 INFO L276 IsEmpty]: Start isEmpty. Operand 2257 states and 3262 transitions. [2023-11-21 22:28:03,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-21 22:28:03,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:03,876 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] [2023-11-21 22:28:03,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:28:03,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:28:03,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:03,878 INFO L85 PathProgramCache]: Analyzing trace with hash 704445342, now seen corresponding path program 1 times [2023-11-21 22:28:03,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:03,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901256259] [2023-11-21 22:28:03,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:03,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:28:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:28:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:28:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:28:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 22:28:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:28:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 22:28:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 22:28:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-21 22:28:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-21 22:28:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-21 22:28:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-21 22:28:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-21 22:28:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-21 22:28:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-21 22:28:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-21 22:28:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-21 22:28:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-21 22:28:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-21 22:28:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-21 22:28:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,580 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-21 22:28:04,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:04,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901256259] [2023-11-21 22:28:04,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901256259] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:04,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:04,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:28:04,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225123552] [2023-11-21 22:28:04,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:04,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:28:04,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:04,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:28:04,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:28:04,586 INFO L87 Difference]: Start difference. First operand 2257 states and 3262 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 4 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-21 22:28:13,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:13,846 INFO L93 Difference]: Finished difference Result 6416 states and 9312 transitions. [2023-11-21 22:28:13,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:28:13,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 4 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 168 [2023-11-21 22:28:13,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:13,890 INFO L225 Difference]: With dead ends: 6416 [2023-11-21 22:28:13,890 INFO L226 Difference]: Without dead ends: 4178 [2023-11-21 22:28:13,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:28:13,907 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 2146 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 2993 mSolverCounterSat, 2132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 2058 SdHoareTripleChecker+Invalid, 5125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2132 IncrementalHoareTripleChecker+Valid, 2993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:13,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2318 Valid, 2058 Invalid, 5125 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2132 Valid, 2993 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2023-11-21 22:28:13,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2023-11-21 22:28:14,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 3770. [2023-11-21 22:28:14,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3770 states, 2242 states have (on average 1.289027653880464) internal successors, (2890), 2309 states have internal predecessors, (2890), 1258 states have call successors, (1258), 270 states have call predecessors, (1258), 269 states have return successors, (1262), 1234 states have call predecessors, (1262), 1258 states have call successors, (1262) [2023-11-21 22:28:14,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3770 states to 3770 states and 5410 transitions. [2023-11-21 22:28:14,241 INFO L78 Accepts]: Start accepts. Automaton has 3770 states and 5410 transitions. Word has length 168 [2023-11-21 22:28:14,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:14,245 INFO L495 AbstractCegarLoop]: Abstraction has 3770 states and 5410 transitions. [2023-11-21 22:28:14,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 4 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-21 22:28:14,246 INFO L276 IsEmpty]: Start isEmpty. Operand 3770 states and 5410 transitions. [2023-11-21 22:28:14,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-21 22:28:14,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:14,252 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] [2023-11-21 22:28:14,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:28:14,252 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:28:14,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:14,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1414605661, now seen corresponding path program 1 times [2023-11-21 22:28:14,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:14,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657128877] [2023-11-21 22:28:14,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:14,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:28:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:28:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:28:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:28:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 22:28:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:28:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 22:28:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 22:28:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-21 22:28:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-21 22:28:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:14,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-21 22:28:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:15,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-21 22:28:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:15,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-21 22:28:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:15,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-21 22:28:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:15,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-21 22:28:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:15,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-21 22:28:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:15,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-21 22:28:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:15,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-21 22:28:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:15,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-21 22:28:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:15,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-21 22:28:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:15,105 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-21 22:28:15,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:15,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657128877] [2023-11-21 22:28:15,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657128877] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:15,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:15,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:28:15,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841595540] [2023-11-21 22:28:15,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:15,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:28:15,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:15,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:28:15,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:28:15,110 INFO L87 Difference]: Start difference. First operand 3770 states and 5410 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 4 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22)