./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_fc40af19-7ed4-477a-a6a6-6584a4255299/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc40af19-7ed4-477a-a6a6-6584a4255299/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc40af19-7ed4-477a-a6a6-6584a4255299/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc40af19-7ed4-477a-a6a6-6584a4255299/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc40af19-7ed4-477a-a6a6-6584a4255299/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc40af19-7ed4-477a-a6a6-6584a4255299/bin/uautomizer-verify-uCwYo4JHxu --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 73338d683e10a9827a18cf31e1247b64129367b1297cba22c91c243b4552d29d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:44:15,690 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:44:15,802 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc40af19-7ed4-477a-a6a6-6584a4255299/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:44:15,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:44:15,815 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:44:15,855 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:44:15,856 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:44:15,856 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:44:15,859 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:44:15,864 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:44:15,865 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:44:15,865 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:44:15,866 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:44:15,868 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:44:15,868 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:44:15,869 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:44:15,869 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:44:15,870 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:44:15,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:44:15,870 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:44:15,871 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:44:15,871 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:44:15,872 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:44:15,873 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:44:15,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:44:15,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:44:15,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:44:15,875 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:44:15,875 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:44:15,876 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:44:15,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:44:15,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:44:15,878 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:44:15,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:44:15,879 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:44:15,879 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:44:15,879 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_fc40af19-7ed4-477a-a6a6-6584a4255299/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc40af19-7ed4-477a-a6a6-6584a4255299/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73338d683e10a9827a18cf31e1247b64129367b1297cba22c91c243b4552d29d [2023-11-19 07:44:16,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:44:16,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:44:16,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:44:16,208 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:44:16,209 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:44:16,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc40af19-7ed4-477a-a6a6-6584a4255299/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-11-19 07:44:19,626 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:44:20,239 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:44:20,240 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc40af19-7ed4-477a-a6a6-6584a4255299/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-11-19 07:44:20,290 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc40af19-7ed4-477a-a6a6-6584a4255299/bin/uautomizer-verify-uCwYo4JHxu/data/f13566347/6979c1b4b1d54af1be9519e9499bda89/FLAGf0e07dcb0 [2023-11-19 07:44:20,310 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc40af19-7ed4-477a-a6a6-6584a4255299/bin/uautomizer-verify-uCwYo4JHxu/data/f13566347/6979c1b4b1d54af1be9519e9499bda89 [2023-11-19 07:44:20,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:44:20,319 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:44:20,326 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:44:20,327 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:44:20,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:44:20,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:44:20" (1/1) ... [2023-11-19 07:44:20,339 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c3352cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:20, skipping insertion in model container [2023-11-19 07:44:20,339 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:44:20" (1/1) ... [2023-11-19 07:44:20,511 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:44:22,035 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_fc40af19-7ed4-477a-a6a6-6584a4255299/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2023-11-19 07:44:22,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:44:22,688 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:44:22,795 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"); [3569] [2023-11-19 07:44:22,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3576] [2023-11-19 07:44:22,798 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 %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3584-3585] [2023-11-19 07:44:22,800 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; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3624-3625] [2023-11-19 07:44:22,801 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; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3628-3629] [2023-11-19 07:44:22,802 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; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3632-3633] [2023-11-19 07:44:22,802 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; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3636-3637] [2023-11-19 07:44:22,816 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_fc40af19-7ed4-477a-a6a6-6584a4255299/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2023-11-19 07:44:23,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:44:23,300 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:44:23,300 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:44:23,300 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:44:23,309 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:44:23,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:23 WrapperNode [2023-11-19 07:44:23,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:44:23,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:44:23,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:44:23,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:44:23,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:23" (1/1) ... [2023-11-19 07:44:23,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:23" (1/1) ... [2023-11-19 07:44:23,721 INFO L138 Inliner]: procedures = 245, calls = 3626, calls flagged for inlining = 121, calls inlined = 121, statements flattened = 6981 [2023-11-19 07:44:23,722 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:44:23,723 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:44:23,723 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:44:23,723 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:44:23,734 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:23" (1/1) ... [2023-11-19 07:44:23,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:23" (1/1) ... [2023-11-19 07:44:23,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:23" (1/1) ... [2023-11-19 07:44:23,815 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:23" (1/1) ... [2023-11-19 07:44:23,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:23" (1/1) ... [2023-11-19 07:44:24,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:23" (1/1) ... [2023-11-19 07:44:24,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:23" (1/1) ... [2023-11-19 07:44:24,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:23" (1/1) ... [2023-11-19 07:44:24,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:44:24,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:44:24,137 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:44:24,137 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:44:24,138 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:23" (1/1) ... [2023-11-19 07:44:24,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:44:24,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc40af19-7ed4-477a-a6a6-6584a4255299/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:24,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc40af19-7ed4-477a-a6a6-6584a4255299/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:44:24,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc40af19-7ed4-477a-a6a6-6584a4255299/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:44:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2023-11-19 07:44:24,310 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2023-11-19 07:44:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2023-11-19 07:44:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2023-11-19 07:44:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_18 [2023-11-19 07:44:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_18 [2023-11-19 07:44:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:44:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:44:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 07:44:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 07:44:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_destruct [2023-11-19 07:44:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_destruct [2023-11-19 07:44:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-11-19 07:44:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-11-19 07:44:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-11-19 07:44:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-11-19 07:44:24,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_22 [2023-11-19 07:44:24,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_22 [2023-11-19 07:44:24,316 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2023-11-19 07:44:24,317 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2023-11-19 07:44:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:44:24,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:44:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-19 07:44:24,318 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-19 07:44:24,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-11-19 07:44:24,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-11-19 07:44:24,319 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2023-11-19 07:44:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2023-11-19 07:44:24,320 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:44:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:44:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:44:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:44:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-19 07:44:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-19 07:44:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-19 07:44:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-19 07:44:24,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:44:24,322 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:44:24,322 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:44:24,322 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:44:24,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-11-19 07:44:24,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-11-19 07:44:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 07:44:24,323 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 07:44:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2023-11-19 07:44:24,323 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2023-11-19 07:44:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2023-11-19 07:44:24,323 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2023-11-19 07:44:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2023-11-19 07:44:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2023-11-19 07:44:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:44:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 07:44:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:44:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2023-11-19 07:44:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2023-11-19 07:44:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-11-19 07:44:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-11-19 07:44:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:44:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2023-11-19 07:44:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2023-11-19 07:44:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2023-11-19 07:44:24,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2023-11-19 07:44:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-19 07:44:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 07:44:24,329 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 07:44:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2023-11-19 07:44:24,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2023-11-19 07:44:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:44:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:44:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 07:44:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 07:44:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 07:44:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 07:44:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-11-19 07:44:24,332 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-11-19 07:44:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 07:44:24,332 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 07:44:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 07:44:24,332 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 07:44:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 07:44:24,332 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 07:44:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2023-11-19 07:44:24,333 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2023-11-19 07:44:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_shutdown [2023-11-19 07:44:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_shutdown [2023-11-19 07:44:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2023-11-19 07:44:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2023-11-19 07:44:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2023-11-19 07:44:24,335 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2023-11-19 07:44:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:44:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 07:44:24,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 07:44:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 07:44:24,335 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 07:44:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2023-11-19 07:44:24,336 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2023-11-19 07:44:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 07:44:24,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 07:44:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:44:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2023-11-19 07:44:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2023-11-19 07:44:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2023-11-19 07:44:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2023-11-19 07:44:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2023-11-19 07:44:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2023-11-19 07:44:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:44:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2023-11-19 07:44:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2023-11-19 07:44:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-19 07:44:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-19 07:44:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 07:44:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 07:44:24,340 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 07:44:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 07:44:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2023-11-19 07:44:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2023-11-19 07:44:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2023-11-19 07:44:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2023-11-19 07:44:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 07:44:24,342 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 07:44:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-19 07:44:24,342 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-19 07:44:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2023-11-19 07:44:24,342 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2023-11-19 07:44:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2023-11-19 07:44:24,343 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2023-11-19 07:44:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:44:24,343 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:44:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:44:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2023-11-19 07:44:24,345 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2023-11-19 07:44:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 07:44:24,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 07:44:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2023-11-19 07:44:24,346 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2023-11-19 07:44:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2023-11-19 07:44:24,346 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2023-11-19 07:44:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 07:44:24,346 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 07:44:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:44:24,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:44:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2023-11-19 07:44:24,347 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2023-11-19 07:44:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2023-11-19 07:44:24,348 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2023-11-19 07:44:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:44:24,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2023-11-19 07:44:24,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2023-11-19 07:44:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:44:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 07:44:24,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 07:44:24,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:44:24,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_17 [2023-11-19 07:44:24,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_17 [2023-11-19 07:44:24,357 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:44:24,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:44:24,363 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 07:44:24,363 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 07:44:24,363 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-11-19 07:44:24,364 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-11-19 07:44:24,364 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2023-11-19 07:44:24,364 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2023-11-19 07:44:24,364 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_irq [2023-11-19 07:44:24,364 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_irq [2023-11-19 07:44:24,365 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2023-11-19 07:44:24,365 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2023-11-19 07:44:24,365 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2023-11-19 07:44:24,365 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2023-11-19 07:44:24,365 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2023-11-19 07:44:24,366 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2023-11-19 07:44:24,366 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 07:44:24,366 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 07:44:24,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-11-19 07:44:24,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-11-19 07:44:24,366 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-19 07:44:24,367 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-19 07:44:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:44:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-19 07:44:24,367 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-19 07:44:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-19 07:44:24,367 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-19 07:44:24,368 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2023-11-19 07:44:24,368 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2023-11-19 07:44:24,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:44:24,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:44:24,368 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2023-11-19 07:44:24,368 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2023-11-19 07:44:24,369 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_bulk_callback [2023-11-19 07:44:24,369 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_bulk_callback [2023-11-19 07:44:24,369 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 07:44:24,369 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 07:44:25,158 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:44:25,170 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:44:25,492 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 07:44:26,598 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-11-19 07:44:36,911 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:44:36,952 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:44:36,953 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:44:36,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:36 BoogieIcfgContainer [2023-11-19 07:44:36,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:44:36,980 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:44:36,980 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:44:36,985 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:44:36,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:44:20" (1/3) ... [2023-11-19 07:44:36,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:36, skipping insertion in model container [2023-11-19 07:44:36,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:23" (2/3) ... [2023-11-19 07:44:36,989 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:36, skipping insertion in model container [2023-11-19 07:44:36,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:36" (3/3) ... [2023-11-19 07:44:36,992 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-11-19 07:44:37,020 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:44:37,020 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:44:37,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:44:37,142 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;@68784f48, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:44:37,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:44:37,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 1685 states, 1202 states have (on average 1.3618968386023294) internal successors, (1637), 1238 states have internal predecessors, (1637), 397 states have call successors, (397), 86 states have call predecessors, (397), 84 states have return successors, (386), 378 states have call predecessors, (386), 386 states have call successors, (386) [2023-11-19 07:44:37,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-19 07:44:37,190 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:37,191 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:37,192 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:44:37,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:37,200 INFO L85 PathProgramCache]: Analyzing trace with hash 38059430, now seen corresponding path program 1 times [2023-11-19 07:44:37,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:37,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051586270] [2023-11-19 07:44:37,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:37,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:38,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:44:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:38,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:44:38,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:38,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:44:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:38,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:44:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:39,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:44:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:39,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:44:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:39,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:44:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:39,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:44:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:39,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 07:44:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:39,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-19 07:44:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:39,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:44:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:39,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 07:44:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:39,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-19 07:44:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:39,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:44:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:39,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-19 07:44:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:39,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-19 07:44:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:39,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-19 07:44:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 07:44:39,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:39,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051586270] [2023-11-19 07:44:39,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051586270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:39,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:39,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:44:39,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627830324] [2023-11-19 07:44:39,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:39,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:44:39,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:39,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:44:39,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:44:39,305 INFO L87 Difference]: Start difference. First operand has 1685 states, 1202 states have (on average 1.3618968386023294) internal successors, (1637), 1238 states have internal predecessors, (1637), 397 states have call successors, (397), 86 states have call predecessors, (397), 84 states have return successors, (386), 378 states have call predecessors, (386), 386 states have call successors, (386) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 07:44:45,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:44:47,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:44:56,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:56,516 INFO L93 Difference]: Finished difference Result 5150 states and 7611 transitions. [2023-11-19 07:44:56,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:44:56,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 117 [2023-11-19 07:44:56,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:56,613 INFO L225 Difference]: With dead ends: 5150 [2023-11-19 07:44:56,614 INFO L226 Difference]: Without dead ends: 3436 [2023-11-19 07:44:56,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:44:56,641 INFO L413 NwaCegarLoop]: 2045 mSDtfsCounter, 3563 mSDsluCounter, 3873 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 1816 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3870 SdHoareTripleChecker+Valid, 5918 SdHoareTripleChecker+Invalid, 4078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1816 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:56,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3870 Valid, 5918 Invalid, 4078 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1816 Valid, 2260 Invalid, 2 Unknown, 0 Unchecked, 16.5s Time] [2023-11-19 07:44:56,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3436 states. [2023-11-19 07:44:56,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3436 to 3245. [2023-11-19 07:44:56,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3245 states, 2338 states have (on average 1.347305389221557) internal successors, (3150), 2379 states have internal predecessors, (3150), 740 states have call successors, (740), 167 states have call predecessors, (740), 166 states have return successors, (734), 718 states have call predecessors, (734), 734 states have call successors, (734) [2023-11-19 07:44:57,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3245 states to 3245 states and 4624 transitions. [2023-11-19 07:44:57,004 INFO L78 Accepts]: Start accepts. Automaton has 3245 states and 4624 transitions. Word has length 117 [2023-11-19 07:44:57,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:57,006 INFO L495 AbstractCegarLoop]: Abstraction has 3245 states and 4624 transitions. [2023-11-19 07:44:57,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 07:44:57,006 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 4624 transitions. [2023-11-19 07:44:57,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-19 07:44:57,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:57,015 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:57,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:44:57,016 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:44:57,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:57,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1237482075, now seen corresponding path program 1 times [2023-11-19 07:44:57,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:57,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729517481] [2023-11-19 07:44:57,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:57,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:44:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:44:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:44:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:44:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:44:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:44:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:44:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:44:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 07:44:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-19 07:44:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:44:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 07:44:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-19 07:44:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:44:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-19 07:44:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:44:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-19 07:44:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:44:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 07:44:58,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:58,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729517481] [2023-11-19 07:44:58,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729517481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:58,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:58,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:44:58,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865567489] [2023-11-19 07:44:58,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:58,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:44:58,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:58,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:44:58,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:44:58,779 INFO L87 Difference]: Start difference. First operand 3245 states and 4624 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 07:45:03,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []