./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.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_d790b673-1371-4f33-8f2a-8e5c464c4f16/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d790b673-1371-4f33-8f2a-8e5c464c4f16/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d790b673-1371-4f33-8f2a-8e5c464c4f16/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d790b673-1371-4f33-8f2a-8e5c464c4f16/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d790b673-1371-4f33-8f2a-8e5c464c4f16/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d790b673-1371-4f33-8f2a-8e5c464c4f16/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:45:50,334 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:45:50,398 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d790b673-1371-4f33-8f2a-8e5c464c4f16/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:45:50,404 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:45:50,405 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:45:50,432 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:45:50,433 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:45:50,434 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:45:50,434 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:45:50,435 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:45:50,436 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:45:50,436 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:45:50,437 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:45:50,437 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:45:50,438 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:45:50,439 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:45:50,439 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:45:50,440 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:45:50,440 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:45:50,441 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:45:50,441 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:45:50,446 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:45:50,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:45:50,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:45:50,448 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:45:50,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:45:50,449 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:45:50,449 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:45:50,449 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:45:50,450 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:45:50,451 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:45:50,451 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:45:50,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:45:50,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:45:50,452 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:45:50,453 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:45:50,453 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:45:50,453 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:45:50,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:45:50,454 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:45:50,454 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:45:50,455 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:45:50,455 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d790b673-1371-4f33-8f2a-8e5c464c4f16/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d790b673-1371-4f33-8f2a-8e5c464c4f16/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 [2023-11-19 04:45:50,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:45:50,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:45:50,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:45:50,795 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:45:50,796 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:45:50,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d790b673-1371-4f33-8f2a-8e5c464c4f16/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2023-11-19 04:45:53,857 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:45:54,661 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:45:54,663 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d790b673-1371-4f33-8f2a-8e5c464c4f16/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2023-11-19 04:45:54,749 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d790b673-1371-4f33-8f2a-8e5c464c4f16/bin/utaipan-verify-t7M7D8N6sZ/data/a5c9d99d8/e96d7793b86c46e2b7aafc020feabeec/FLAG77ecd3df7 [2023-11-19 04:45:54,765 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d790b673-1371-4f33-8f2a-8e5c464c4f16/bin/utaipan-verify-t7M7D8N6sZ/data/a5c9d99d8/e96d7793b86c46e2b7aafc020feabeec [2023-11-19 04:45:54,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:45:54,776 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:45:54,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:45:54,780 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:45:54,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:45:54,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:45:54" (1/1) ... [2023-11-19 04:45:54,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5976b309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:54, skipping insertion in model container [2023-11-19 04:45:54,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:45:54" (1/1) ... [2023-11-19 04:45:54,982 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:45:58,312 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_d790b673-1371-4f33-8f2a-8e5c464c4f16/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[378939,378952] [2023-11-19 04:45:58,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:45:58,616 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:45:58,767 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 %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [6206-6207] [2023-11-19 04:45:58,773 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; addl %1,%0": "+m" (v->counter): "ir" (i)); [6334] [2023-11-19 04:45:59,190 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; incl %0": "+m" (v->counter)); [11645] [2023-11-19 04:45:59,191 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; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [11653-11654] [2023-11-19 04:45:59,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/skbuff.h"), "i" (1696), "i" (12UL)); [11718-11719] [2023-11-19 04:45:59,303 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_d790b673-1371-4f33-8f2a-8e5c464c4f16/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[378939,378952] [2023-11-19 04:45:59,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:45:59,545 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:45:59,552 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:45:59,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:59 WrapperNode [2023-11-19 04:45:59,553 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:45:59,555 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:45:59,555 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:45:59,555 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:45:59,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:59" (1/1) ... [2023-11-19 04:45:59,677 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:59" (1/1) ... [2023-11-19 04:45:59,875 INFO L138 Inliner]: procedures = 341, calls = 4121, calls flagged for inlining = 136, calls inlined = 92, statements flattened = 6066 [2023-11-19 04:45:59,875 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:45:59,876 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:45:59,876 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:45:59,877 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:45:59,887 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:59" (1/1) ... [2023-11-19 04:45:59,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:59" (1/1) ... [2023-11-19 04:46:00,006 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:59" (1/1) ... [2023-11-19 04:46:00,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:59" (1/1) ... [2023-11-19 04:46:00,208 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:59" (1/1) ... [2023-11-19 04:46:00,244 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:59" (1/1) ... [2023-11-19 04:46:00,281 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:59" (1/1) ... [2023-11-19 04:46:00,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:59" (1/1) ... [2023-11-19 04:46:00,340 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:46:00,342 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:46:00,342 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:46:00,342 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:46:00,343 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:59" (1/1) ... [2023-11-19 04:46:00,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:46:00,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d790b673-1371-4f33-8f2a-8e5c464c4f16/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:46:00,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d790b673-1371-4f33-8f2a-8e5c464c4f16/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:46:00,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d790b673-1371-4f33-8f2a-8e5c464c4f16/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:46:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2023-11-19 04:46:00,424 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2023-11-19 04:46:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2023-11-19 04:46:00,425 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2023-11-19 04:46:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-19 04:46:00,426 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-19 04:46:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2023-11-19 04:46:00,426 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2023-11-19 04:46:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-19 04:46:00,426 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-19 04:46:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2023-11-19 04:46:00,426 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2023-11-19 04:46:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:46:00,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:46:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:46:00,427 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:46:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2023-11-19 04:46:00,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2023-11-19 04:46:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2023-11-19 04:46:00,428 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2023-11-19 04:46:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2023-11-19 04:46:00,429 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2023-11-19 04:46:00,429 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2023-11-19 04:46:00,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2023-11-19 04:46:00,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 04:46:00,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 04:46:00,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:46:00,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:46:00,431 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2023-11-19 04:46:00,431 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2023-11-19 04:46:00,432 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2023-11-19 04:46:00,432 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2023-11-19 04:46:00,432 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2023-11-19 04:46:00,432 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2023-11-19 04:46:00,432 INFO L130 BoogieDeclarations]: Found specification of procedure freeurbs [2023-11-19 04:46:00,433 INFO L138 BoogieDeclarations]: Found implementation of procedure freeurbs [2023-11-19 04:46:00,433 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2023-11-19 04:46:00,433 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2023-11-19 04:46:00,433 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-11-19 04:46:00,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-11-19 04:46:00,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 04:46:00,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 04:46:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2023-11-19 04:46:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2023-11-19 04:46:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:46:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:46:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2023-11-19 04:46:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2023-11-19 04:46:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:46:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:46:00,435 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-19 04:46:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-19 04:46:00,435 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2023-11-19 04:46:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2023-11-19 04:46:00,435 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2023-11-19 04:46:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2023-11-19 04:46:00,436 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2023-11-19 04:46:00,436 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2023-11-19 04:46:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 04:46:00,437 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 04:46:00,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2023-11-19 04:46:00,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2023-11-19 04:46:00,438 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2023-11-19 04:46:00,438 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2023-11-19 04:46:00,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2023-11-19 04:46:00,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2023-11-19 04:46:00,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2023-11-19 04:46:00,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2023-11-19 04:46:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:46:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_5 [2023-11-19 04:46:00,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_5 [2023-11-19 04:46:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 04:46:00,440 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 04:46:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2023-11-19 04:46:00,440 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2023-11-19 04:46:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure check_pending [2023-11-19 04:46:00,440 INFO L138 BoogieDeclarations]: Found implementation of procedure check_pending [2023-11-19 04:46:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 04:46:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:46:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure error_hangup [2023-11-19 04:46:00,441 INFO L138 BoogieDeclarations]: Found implementation of procedure error_hangup [2023-11-19 04:46:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2023-11-19 04:46:00,441 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2023-11-19 04:46:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_send_skb [2023-11-19 04:46:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_send_skb [2023-11-19 04:46:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2023-11-19 04:46:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2023-11-19 04:46:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2023-11-19 04:46:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2023-11-19 04:46:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 04:46:00,443 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 04:46:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2023-11-19 04:46:00,443 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2023-11-19 04:46:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:46:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2023-11-19 04:46:00,444 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2023-11-19 04:46:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:46:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2023-11-19 04:46:00,444 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2023-11-19 04:46:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:46:00,444 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:46:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 04:46:00,444 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 04:46:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-11-19 04:46:00,445 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-11-19 04:46:00,445 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 04:46:00,445 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 04:46:00,446 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cb [2023-11-19 04:46:00,446 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cb [2023-11-19 04:46:00,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-19 04:46:00,446 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-19 04:46:00,446 INFO L130 BoogieDeclarations]: Found specification of procedure stopurbs [2023-11-19 04:46:00,447 INFO L138 BoogieDeclarations]: Found implementation of procedure stopurbs [2023-11-19 04:46:00,447 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2023-11-19 04:46:00,448 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2023-11-19 04:46:00,448 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 04:46:00,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 04:46:00,448 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 04:46:00,448 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 04:46:00,448 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2023-11-19 04:46:00,448 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2023-11-19 04:46:00,448 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2023-11-19 04:46:00,449 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2023-11-19 04:46:00,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:46:00,449 INFO L130 BoogieDeclarations]: Found specification of procedure dump_urb [2023-11-19 04:46:00,449 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_urb [2023-11-19 04:46:00,449 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-19 04:46:00,449 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-19 04:46:00,450 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 04:46:00,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 04:46:00,451 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2023-11-19 04:46:00,451 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2023-11-19 04:46:00,451 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2023-11-19 04:46:00,451 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2023-11-19 04:46:00,451 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-19 04:46:00,451 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-19 04:46:00,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 04:46:00,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 04:46:00,452 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-11-19 04:46:00,452 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-11-19 04:46:00,452 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2023-11-19 04:46:00,452 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2023-11-19 04:46:00,453 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:46:00,454 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:46:00,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:46:00,456 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_rcmsg [2023-11-19 04:46:00,458 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_rcmsg [2023-11-19 04:46:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:46:00,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:46:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2023-11-19 04:46:00,460 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2023-11-19 04:46:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 04:46:00,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 04:46:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:46:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-19 04:46:00,465 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-19 04:46:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 04:46:00,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 04:46:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2023-11-19 04:46:00,466 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2023-11-19 04:46:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2023-11-19 04:46:00,467 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2023-11-19 04:46:00,467 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_input [2023-11-19 04:46:00,467 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_input [2023-11-19 04:46:00,467 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2023-11-19 04:46:00,467 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2023-11-19 04:46:00,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:46:00,467 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2023-11-19 04:46:00,468 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2023-11-19 04:46:00,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:46:00,468 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2023-11-19 04:46:00,468 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2023-11-19 04:46:00,468 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-11-19 04:46:00,468 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-11-19 04:46:00,468 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-19 04:46:00,469 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-19 04:46:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-19 04:46:00,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-19 04:46:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2023-11-19 04:46:00,469 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2023-11-19 04:46:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-19 04:46:00,469 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-19 04:46:00,470 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-19 04:46:00,470 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-19 04:46:00,470 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2023-11-19 04:46:00,470 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2023-11-19 04:46:00,470 INFO L130 BoogieDeclarations]: Found specification of procedure update_basstate [2023-11-19 04:46:00,470 INFO L138 BoogieDeclarations]: Found implementation of procedure update_basstate [2023-11-19 04:46:00,471 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-19 04:46:00,471 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-19 04:46:00,471 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-19 04:46:00,471 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-19 04:46:00,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:46:00,471 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2023-11-19 04:46:00,471 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2023-11-19 04:46:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2023-11-19 04:46:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2023-11-19 04:46:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-19 04:46:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-19 04:46:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:46:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:46:01,229 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:46:01,234 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:46:01,699 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:46:11,394 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:46:13,909 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:46:13,910 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:46:13,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:46:13 BoogieIcfgContainer [2023-11-19 04:46:13,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:46:13,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:46:13,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:46:13,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:46:13,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:45:54" (1/3) ... [2023-11-19 04:46:13,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bda4ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:46:13, skipping insertion in model container [2023-11-19 04:46:13,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:59" (2/3) ... [2023-11-19 04:46:13,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bda4ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:46:13, skipping insertion in model container [2023-11-19 04:46:13,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:46:13" (3/3) ... [2023-11-19 04:46:13,957 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2023-11-19 04:46:13,986 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:46:13,986 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:46:14,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:46:14,128 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@23a98608, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:46:14,128 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:46:14,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 1530 states, 953 states have (on average 1.3504721930745016) internal successors, (1287), 997 states have internal predecessors, (1287), 482 states have call successors, (482), 94 states have call predecessors, (482), 93 states have return successors, (473), 454 states have call predecessors, (473), 473 states have call successors, (473) [2023-11-19 04:46:14,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-19 04:46:14,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:14,201 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-19 04:46:14,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:46:14,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:14,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1456764775, now seen corresponding path program 1 times [2023-11-19 04:46:14,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:14,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768921265] [2023-11-19 04:46:14,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:14,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:16,421 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-19 04:46:16,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:16,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768921265] [2023-11-19 04:46:16,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768921265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:16,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:16,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:46:16,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605795772] [2023-11-19 04:46:16,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:16,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:46:16,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:16,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:46:16,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:46:16,503 INFO L87 Difference]: Start difference. First operand has 1530 states, 953 states have (on average 1.3504721930745016) internal successors, (1287), 997 states have internal predecessors, (1287), 482 states have call successors, (482), 94 states have call predecessors, (482), 93 states have return successors, (473), 454 states have call predecessors, (473), 473 states have call successors, (473) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 04:46:22,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:22,125 INFO L93 Difference]: Finished difference Result 4200 states and 6284 transitions. [2023-11-19 04:46:22,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:46:22,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2023-11-19 04:46:22,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:22,193 INFO L225 Difference]: With dead ends: 4200 [2023-11-19 04:46:22,194 INFO L226 Difference]: Without dead ends: 2586 [2023-11-19 04:46:22,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:46:22,234 INFO L413 NwaCegarLoop]: 2067 mSDtfsCounter, 1737 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 4022 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:22,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 4022 Invalid, 492 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-19 04:46:22,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2586 states. [2023-11-19 04:46:22,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2586 to 2583. [2023-11-19 04:46:22,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2583 states, 1628 states have (on average 1.351965601965602) internal successors, (2201), 1694 states have internal predecessors, (2201), 789 states have call successors, (789), 166 states have call predecessors, (789), 165 states have return successors, (788), 750 states have call predecessors, (788), 788 states have call successors, (788) [2023-11-19 04:46:22,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 3778 transitions. [2023-11-19 04:46:22,651 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 3778 transitions. Word has length 125 [2023-11-19 04:46:22,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:22,653 INFO L495 AbstractCegarLoop]: Abstraction has 2583 states and 3778 transitions. [2023-11-19 04:46:22,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 04:46:22,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 3778 transitions. [2023-11-19 04:46:22,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-19 04:46:22,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:22,665 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-19 04:46:22,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:46:22,672 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:46:22,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:22,673 INFO L85 PathProgramCache]: Analyzing trace with hash -537474006, now seen corresponding path program 1 times [2023-11-19 04:46:22,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:22,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004682315] [2023-11-19 04:46:22,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:22,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:24,259 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-19 04:46:24,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:24,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004682315] [2023-11-19 04:46:24,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004682315] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:24,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:24,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:46:24,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440966308] [2023-11-19 04:46:24,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:24,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:46:24,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:24,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:46:24,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:46:24,271 INFO L87 Difference]: Start difference. First operand 2583 states and 3778 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-19 04:46:26,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:30,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:30,790 INFO L93 Difference]: Finished difference Result 6626 states and 9681 transitions. [2023-11-19 04:46:30,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:46:30,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 126 [2023-11-19 04:46:30,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:30,829 INFO L225 Difference]: With dead ends: 6626 [2023-11-19 04:46:30,829 INFO L226 Difference]: Without dead ends: 4068 [2023-11-19 04:46:30,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:46:30,849 INFO L413 NwaCegarLoop]: 1947 mSDtfsCounter, 1363 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 3749 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:30,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 3749 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 547 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2023-11-19 04:46:30,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4068 states. [2023-11-19 04:46:31,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4068 to 4065. [2023-11-19 04:46:31,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4065 states, 2570 states have (on average 1.3568093385214008) internal successors, (3487), 2694 states have internal predecessors, (3487), 1224 states have call successors, (1224), 271 states have call predecessors, (1224), 270 states have return successors, (1223), 1149 states have call predecessors, (1223), 1223 states have call successors, (1223) [2023-11-19 04:46:31,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4065 states to 4065 states and 5934 transitions. [2023-11-19 04:46:31,099 INFO L78 Accepts]: Start accepts. Automaton has 4065 states and 5934 transitions. Word has length 126 [2023-11-19 04:46:31,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:31,100 INFO L495 AbstractCegarLoop]: Abstraction has 4065 states and 5934 transitions. [2023-11-19 04:46:31,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-19 04:46:31,101 INFO L276 IsEmpty]: Start isEmpty. Operand 4065 states and 5934 transitions. [2023-11-19 04:46:31,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-19 04:46:31,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:31,108 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-19 04:46:31,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:46:31,109 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:46:31,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:31,119 INFO L85 PathProgramCache]: Analyzing trace with hash -336207931, now seen corresponding path program 1 times [2023-11-19 04:46:31,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:31,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360729878] [2023-11-19 04:46:31,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:31,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:33,003 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-19 04:46:33,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:33,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360729878] [2023-11-19 04:46:33,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360729878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:33,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:33,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:46:33,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260192134] [2023-11-19 04:46:33,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:33,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:46:33,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:33,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:46:33,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:46:33,009 INFO L87 Difference]: Start difference. First operand 4065 states and 5934 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-19 04:46:34,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:35,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []