./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/bin/uautomizer-verify-uTZkv6EMXl --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 bc34b562a518e1962cb00b051353e0f6c91b97d77e3b06d95f31a41553709599 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:33:01,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:33:01,602 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:33:01,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:33:01,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:33:01,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:33:01,647 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:33:01,648 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:33:01,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:33:01,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:33:01,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:33:01,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:33:01,651 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:33:01,652 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:33:01,653 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:33:01,653 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:33:01,654 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:33:01,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:33:01,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:33:01,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:33:01,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:33:01,657 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:33:01,658 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:33:01,659 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:33:01,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:33:01,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:01,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:33:01,661 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:33:01,662 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:33:01,662 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:33:01,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:33:01,663 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:33:01,664 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:33:01,664 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:33:01,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:33:01,665 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:33:01,666 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_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc34b562a518e1962cb00b051353e0f6c91b97d77e3b06d95f31a41553709599 [2023-11-12 02:33:01,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:33:02,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:33:02,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:33:02,036 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:33:02,037 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:33:02,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i [2023-11-12 02:33:05,178 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:33:05,966 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:33:05,967 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i [2023-11-12 02:33:06,034 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/bin/uautomizer-verify-uTZkv6EMXl/data/73616e6aa/65978f17ee9e4d9fb9417fe66a14f574/FLAGb974ab69a [2023-11-12 02:33:06,056 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/bin/uautomizer-verify-uTZkv6EMXl/data/73616e6aa/65978f17ee9e4d9fb9417fe66a14f574 [2023-11-12 02:33:06,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:33:06,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:33:06,066 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:06,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:33:06,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:33:06,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:06" (1/1) ... [2023-11-12 02:33:06,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59e25bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:06, skipping insertion in model container [2023-11-12 02:33:06,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:06" (1/1) ... [2023-11-12 02:33:06,251 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:33:08,799 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_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i[295458,295471] [2023-11-12 02:33:08,804 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_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i[295605,295618] [2023-11-12 02:33:08,805 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_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i[295744,295757] [2023-11-12 02:33:08,805 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_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i[295902,295915] [2023-11-12 02:33:08,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:08,864 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:33:09,005 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"); [5761] [2023-11-12 02:33:09,009 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)); [5768] [2023-11-12 02:33:09,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5775] [2023-11-12 02:33:09,018 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/a068ef8/linux-usb-dev/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5805-5806] [2023-11-12 02:33:09,018 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"); [5811-5813] [2023-11-12 02:33:09,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5870] [2023-11-12 02:33:09,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5878] [2023-11-12 02:33:09,313 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_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i[295458,295471] [2023-11-12 02:33:09,313 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_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i[295605,295618] [2023-11-12 02:33:09,314 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i[295744,295757] [2023-11-12 02:33:09,315 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_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i[295902,295915] [2023-11-12 02:33:09,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:09,453 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:33:09,464 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:33:09,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:09 WrapperNode [2023-11-12 02:33:09,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:09,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:09,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:33:09,469 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:33:09,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:09" (1/1) ... [2023-11-12 02:33:09,641 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:09" (1/1) ... [2023-11-12 02:33:09,949 INFO L138 Inliner]: procedures = 290, calls = 1916, calls flagged for inlining = 144, calls inlined = 136, statements flattened = 4856 [2023-11-12 02:33:09,950 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:09,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:33:09,951 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:33:09,951 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:33:09,961 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:09" (1/1) ... [2023-11-12 02:33:09,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:09" (1/1) ... [2023-11-12 02:33:10,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:09" (1/1) ... [2023-11-12 02:33:10,004 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:09" (1/1) ... [2023-11-12 02:33:10,159 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:09" (1/1) ... [2023-11-12 02:33:10,194 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:09" (1/1) ... [2023-11-12 02:33:10,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:09" (1/1) ... [2023-11-12 02:33:10,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:09" (1/1) ... [2023-11-12 02:33:10,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:33:10,287 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:33:10,287 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:33:10,287 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:33:10,288 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:09" (1/1) ... [2023-11-12 02:33:10,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:10,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:10,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:33:10,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2cb831-5dbd-4e4f-a086-f14cbb67e980/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:33:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2023-11-12 02:33:10,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2023-11-12 02:33:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 02:33:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:33:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 02:33:10,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 02:33:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 02:33:10,375 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 02:33:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2023-11-12 02:33:10,376 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2023-11-12 02:33:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2023-11-12 02:33:10,376 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2023-11-12 02:33:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2023-11-12 02:33:10,377 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2023-11-12 02:33:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 02:33:10,378 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 02:33:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:33:10,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:33:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-11-12 02:33:10,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-11-12 02:33:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2023-11-12 02:33:10,380 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2023-11-12 02:33:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-12 02:33:10,383 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-12 02:33:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2023-11-12 02:33:10,383 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2023-11-12 02:33:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2023-11-12 02:33:10,383 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2023-11-12 02:33:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2023-11-12 02:33:10,384 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2023-11-12 02:33:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2023-11-12 02:33:10,384 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2023-11-12 02:33:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 02:33:10,384 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 02:33:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2023-11-12 02:33:10,385 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2023-11-12 02:33:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 02:33:10,385 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 02:33:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2023-11-12 02:33:10,385 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2023-11-12 02:33:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2023-11-12 02:33:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2023-11-12 02:33:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-12 02:33:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-12 02:33:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:33:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 02:33:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:33:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 02:33:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 02:33:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2023-11-12 02:33:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2023-11-12 02:33:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2023-11-12 02:33:10,388 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2023-11-12 02:33:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-12 02:33:10,388 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-12 02:33:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 02:33:10,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 02:33:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2023-11-12 02:33:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2023-11-12 02:33:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 02:33:10,391 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 02:33:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:33:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:33:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2023-11-12 02:33:10,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2023-11-12 02:33:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2023-11-12 02:33:10,393 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2023-11-12 02:33:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 02:33:10,393 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 02:33:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-12 02:33:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-12 02:33:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-12 02:33:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-12 02:33:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2023-11-12 02:33:10,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2023-11-12 02:33:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-12 02:33:10,395 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-12 02:33:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2023-11-12 02:33:10,395 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2023-11-12 02:33:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 02:33:10,396 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 02:33:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-12 02:33:10,397 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-12 02:33:10,397 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 02:33:10,397 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 02:33:10,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 02:33:10,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 02:33:10,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-12 02:33:10,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-12 02:33:10,398 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2023-11-12 02:33:10,398 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2023-11-12 02:33:10,480 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2023-11-12 02:33:10,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2023-11-12 02:33:10,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 02:33:10,480 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2023-11-12 02:33:10,480 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2023-11-12 02:33:10,481 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2023-11-12 02:33:10,481 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2023-11-12 02:33:10,481 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 02:33:10,481 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 02:33:10,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:33:10,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 02:33:10,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 02:33:10,481 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2023-11-12 02:33:10,481 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2023-11-12 02:33:10,482 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-12 02:33:10,482 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-12 02:33:10,482 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2023-11-12 02:33:10,482 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2023-11-12 02:33:10,482 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-12 02:33:10,482 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-12 02:33:10,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:33:10,482 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-12 02:33:10,482 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-12 02:33:10,483 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 02:33:10,483 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 02:33:10,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 02:33:10,483 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 02:33:10,483 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2023-11-12 02:33:10,483 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2023-11-12 02:33:10,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 02:33:10,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 02:33:10,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-12 02:33:10,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-12 02:33:10,484 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2023-11-12 02:33:10,484 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2023-11-12 02:33:10,484 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-12 02:33:10,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-12 02:33:10,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:33:10,484 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2023-11-12 02:33:10,484 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2023-11-12 02:33:10,484 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2023-11-12 02:33:10,484 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2023-11-12 02:33:10,484 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-12 02:33:10,485 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-12 02:33:10,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:33:10,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:33:10,485 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2023-11-12 02:33:10,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2023-11-12 02:33:10,485 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2023-11-12 02:33:10,485 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2023-11-12 02:33:10,485 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2023-11-12 02:33:10,485 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2023-11-12 02:33:10,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:33:10,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 02:33:10,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 02:33:10,486 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2023-11-12 02:33:10,486 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2023-11-12 02:33:10,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:33:10,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 02:33:10,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 02:33:10,486 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 02:33:10,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 02:33:10,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:33:10,487 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:33:10,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:33:10,487 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 02:33:10,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 02:33:10,487 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2023-11-12 02:33:10,487 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2023-11-12 02:33:10,487 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2023-11-12 02:33:10,487 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2023-11-12 02:33:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2023-11-12 02:33:10,496 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2023-11-12 02:33:10,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 02:33:10,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 02:33:10,498 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2023-11-12 02:33:10,498 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2023-11-12 02:33:10,498 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2023-11-12 02:33:10,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2023-11-12 02:33:10,499 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 02:33:10,499 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 02:33:10,499 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2023-11-12 02:33:10,499 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2023-11-12 02:33:10,499 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2023-11-12 02:33:10,499 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2023-11-12 02:33:10,500 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-12 02:33:10,500 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-12 02:33:10,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 02:33:10,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 02:33:10,500 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2023-11-12 02:33:10,501 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2023-11-12 02:33:10,501 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-12 02:33:10,501 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-12 02:33:10,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:33:10,501 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-11-12 02:33:10,501 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-11-12 02:33:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2023-11-12 02:33:10,502 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2023-11-12 02:33:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 02:33:10,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 02:33:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2023-11-12 02:33:10,502 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2023-11-12 02:33:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:33:10,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:33:11,281 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:33:11,295 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:33:11,677 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 02:33:17,219 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 02:33:19,038 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:33:19,064 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:33:19,064 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:33:19,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:19 BoogieIcfgContainer [2023-11-12 02:33:19,069 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:33:19,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:33:19,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:33:19,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:33:19,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:33:06" (1/3) ... [2023-11-12 02:33:19,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168c78ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:19, skipping insertion in model container [2023-11-12 02:33:19,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:09" (2/3) ... [2023-11-12 02:33:19,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168c78ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:19, skipping insertion in model container [2023-11-12 02:33:19,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:19" (3/3) ... [2023-11-12 02:33:19,080 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-irda-via-ircc.cil.i [2023-11-12 02:33:19,103 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:33:19,104 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-12 02:33:19,222 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:33:19,229 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;@7ccd0585, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:33:19,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-12 02:33:19,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 2162 states, 1386 states have (on average 1.3225108225108224) internal successors, (1833), 1410 states have internal predecessors, (1833), 686 states have call successors, (686), 89 states have call predecessors, (686), 88 states have return successors, (682), 671 states have call predecessors, (682), 682 states have call successors, (682) [2023-11-12 02:33:19,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-12 02:33:19,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:19,262 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:19,263 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:19,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:19,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1722814293, now seen corresponding path program 1 times [2023-11-12 02:33:19,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:19,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375734809] [2023-11-12 02:33:19,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:19,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:20,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:33:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:20,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:20,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:33:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:20,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:20,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:33:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:20,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-12 02:33:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:20,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:20,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:33:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:20,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:20,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:33:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:20,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-12 02:33:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:20,402 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-12 02:33:20,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:20,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375734809] [2023-11-12 02:33:20,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375734809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:20,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:20,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:33:20,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204040136] [2023-11-12 02:33:20,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:20,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:33:20,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:20,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:33:20,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:33:20,474 INFO L87 Difference]: Start difference. First operand has 2162 states, 1386 states have (on average 1.3225108225108224) internal successors, (1833), 1410 states have internal predecessors, (1833), 686 states have call successors, (686), 89 states have call predecessors, (686), 88 states have return successors, (682), 671 states have call predecessors, (682), 682 states have call successors, (682) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-12 02:33:23,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:33:27,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:33:35,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:35,090 INFO L93 Difference]: Finished difference Result 6415 states and 9642 transitions. [2023-11-12 02:33:35,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:33:35,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 78 [2023-11-12 02:33:35,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:35,255 INFO L225 Difference]: With dead ends: 6415 [2023-11-12 02:33:35,255 INFO L226 Difference]: Without dead ends: 4258 [2023-11-12 02:33:35,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:33:35,296 INFO L413 NwaCegarLoop]: 1563 mSDtfsCounter, 4300 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 3929 mSolverCounterSat, 2086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4949 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 6015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2086 IncrementalHoareTripleChecker+Valid, 3929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:35,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4949 Valid, 3671 Invalid, 6015 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2086 Valid, 3929 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2023-11-12 02:33:35,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4258 states. [2023-11-12 02:33:35,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4258 to 4228. [2023-11-12 02:33:35,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4228 states, 2709 states have (on average 1.3145071982281284) internal successors, (3561), 2755 states have internal predecessors, (3561), 1343 states have call successors, (1343), 175 states have call predecessors, (1343), 174 states have return successors, (1341), 1319 states have call predecessors, (1341), 1341 states have call successors, (1341) [2023-11-12 02:33:35,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4228 states to 4228 states and 6245 transitions. [2023-11-12 02:33:35,978 INFO L78 Accepts]: Start accepts. Automaton has 4228 states and 6245 transitions. Word has length 78 [2023-11-12 02:33:35,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:35,979 INFO L495 AbstractCegarLoop]: Abstraction has 4228 states and 6245 transitions. [2023-11-12 02:33:35,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-12 02:33:35,980 INFO L276 IsEmpty]: Start isEmpty. Operand 4228 states and 6245 transitions. [2023-11-12 02:33:35,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-12 02:33:35,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:35,999 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:36,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:33:36,000 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:36,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:36,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1003255443, now seen corresponding path program 1 times [2023-11-12 02:33:36,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:36,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47464343] [2023-11-12 02:33:36,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:36,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:36,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:33:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:36,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:36,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:33:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:36,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:36,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:33:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:36,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:36,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-12 02:33:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:36,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:36,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:33:36,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:36,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:36,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:33:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:36,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-12 02:33:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:36,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-12 02:33:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:36,718 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-12 02:33:36,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:36,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47464343] [2023-11-12 02:33:36,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47464343] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:36,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:36,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:33:36,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76573833] [2023-11-12 02:33:36,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:36,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:33:36,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:36,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:33:36,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:33:36,728 INFO L87 Difference]: Start difference. First operand 4228 states and 6245 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-12 02:33:38,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:33:41,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []