./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 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170594be-fd53-475a-9e5d-f2731dd5d3d3/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170594be-fd53-475a-9e5d-f2731dd5d3d3/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170594be-fd53-475a-9e5d-f2731dd5d3d3/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170594be-fd53-475a-9e5d-f2731dd5d3d3/bin/utaipan-verify-mE87zJ7Ire/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_170594be-fd53-475a-9e5d-f2731dd5d3d3/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170594be-fd53-475a-9e5d-f2731dd5d3d3/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:18:20,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:18:20,673 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170594be-fd53-475a-9e5d-f2731dd5d3d3/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:18:20,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:18:20,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:18:20,706 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:18:20,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:18:20,707 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:18:20,708 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:18:20,709 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:18:20,709 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:18:20,710 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:18:20,711 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:18:20,711 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:18:20,712 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:18:20,712 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:18:20,713 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:18:20,713 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:18:20,714 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:18:20,715 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:18:20,715 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:18:20,716 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:18:20,717 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:18:20,718 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:18:20,718 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:18:20,719 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:18:20,719 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:18:20,720 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:18:20,720 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:18:20,721 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:18:20,721 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:18:20,722 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:18:20,722 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:18:20,723 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:18:20,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:20,724 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:18:20,724 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:18:20,724 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:18:20,725 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:18:20,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:18:20,725 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:18:20,726 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:18:20,727 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:18:20,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:18:20,728 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_170594be-fd53-475a-9e5d-f2731dd5d3d3/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170594be-fd53-475a-9e5d-f2731dd5d3d3/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 [2023-11-23 21:18:21,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:18:21,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:18:21,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:18:21,103 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:18:21,104 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:18:21,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170594be-fd53-475a-9e5d-f2731dd5d3d3/bin/utaipan-verify-mE87zJ7Ire/../../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 [2023-11-23 21:18:24,395 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:18:25,218 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:18:25,219 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170594be-fd53-475a-9e5d-f2731dd5d3d3/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 [2023-11-23 21:18:25,305 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170594be-fd53-475a-9e5d-f2731dd5d3d3/bin/utaipan-verify-mE87zJ7Ire/data/cac0ac445/8112d0bc3fbf4e70921820e9fac563b3/FLAGd576fc9e9 [2023-11-23 21:18:25,330 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170594be-fd53-475a-9e5d-f2731dd5d3d3/bin/utaipan-verify-mE87zJ7Ire/data/cac0ac445/8112d0bc3fbf4e70921820e9fac563b3 [2023-11-23 21:18:25,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:18:25,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:18:25,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:25,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:18:25,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:18:25,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:25" (1/1) ... [2023-11-23 21:18:25,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@458a8bd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:25, skipping insertion in model container [2023-11-23 21:18:25,352 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:25" (1/1) ... [2023-11-23 21:18:25,554 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:18:28,793 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_170594be-fd53-475a-9e5d-f2731dd5d3d3/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] [2023-11-23 21:18:28,870 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:29,100 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:18:29,272 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] [2023-11-23 21:18:29,280 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] [2023-11-23 21:18:29,673 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] [2023-11-23 21:18:29,673 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] [2023-11-23 21:18:29,675 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] [2023-11-23 21:18:29,732 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_170594be-fd53-475a-9e5d-f2731dd5d3d3/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] [2023-11-23 21:18:29,740 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:29,998 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:30,006 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:18:30,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:30 WrapperNode [2023-11-23 21:18:30,008 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:30,009 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:30,009 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:18:30,009 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:18:30,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:30" (1/1) ... [2023-11-23 21:18:30,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:30" (1/1) ... [2023-11-23 21:18:30,478 INFO L138 Inliner]: procedures = 341, calls = 4121, calls flagged for inlining = 136, calls inlined = 92, statements flattened = 6066 [2023-11-23 21:18:30,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:30,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:18:30,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:18:30,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:18:30,496 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:30" (1/1) ... [2023-11-23 21:18:30,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:30" (1/1) ... [2023-11-23 21:18:30,560 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:30" (1/1) ... [2023-11-23 21:18:30,561 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:30" (1/1) ... [2023-11-23 21:18:30,773 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:30" (1/1) ... [2023-11-23 21:18:30,812 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:30" (1/1) ... [2023-11-23 21:18:30,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:30" (1/1) ... [2023-11-23 21:18:30,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:30" (1/1) ... [2023-11-23 21:18:30,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:18:30,926 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:18:30,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:18:30,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:18:30,927 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:30" (1/1) ... [2023-11-23 21:18:30,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:30,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170594be-fd53-475a-9e5d-f2731dd5d3d3/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:18:30,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170594be-fd53-475a-9e5d-f2731dd5d3d3/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:18:30,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170594be-fd53-475a-9e5d-f2731dd5d3d3/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:18:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2023-11-23 21:18:31,009 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2023-11-23 21:18:31,009 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2023-11-23 21:18:31,009 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2023-11-23 21:18:31,009 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-23 21:18:31,009 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-23 21:18:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2023-11-23 21:18:31,010 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2023-11-23 21:18:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-23 21:18:31,010 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-23 21:18:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2023-11-23 21:18:31,010 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2023-11-23 21:18:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:18:31,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:18:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:18:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:18:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2023-11-23 21:18:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2023-11-23 21:18:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2023-11-23 21:18:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2023-11-23 21:18:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2023-11-23 21:18:31,014 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2023-11-23 21:18:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2023-11-23 21:18:31,015 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2023-11-23 21:18:31,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:18:31,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:18:31,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:18:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:18:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2023-11-23 21:18:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2023-11-23 21:18:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2023-11-23 21:18:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2023-11-23 21:18:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2023-11-23 21:18:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2023-11-23 21:18:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure freeurbs [2023-11-23 21:18:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure freeurbs [2023-11-23 21:18:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2023-11-23 21:18:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2023-11-23 21:18:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-11-23 21:18:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-11-23 21:18:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:18:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:18:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2023-11-23 21:18:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2023-11-23 21:18:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:18:31,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:18:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2023-11-23 21:18:31,019 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2023-11-23 21:18:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:18:31,020 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:18:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-23 21:18:31,020 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-23 21:18:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2023-11-23 21:18:31,020 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2023-11-23 21:18:31,021 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2023-11-23 21:18:31,021 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2023-11-23 21:18:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2023-11-23 21:18:31,022 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2023-11-23 21:18:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:18:31,023 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:18:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2023-11-23 21:18:31,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2023-11-23 21:18:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2023-11-23 21:18:31,024 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2023-11-23 21:18:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2023-11-23 21:18:31,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2023-11-23 21:18:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2023-11-23 21:18:31,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2023-11-23 21:18:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:18:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_5 [2023-11-23 21:18:31,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_5 [2023-11-23 21:18:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:18:31,026 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:18:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2023-11-23 21:18:31,027 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2023-11-23 21:18:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure check_pending [2023-11-23 21:18:31,027 INFO L138 BoogieDeclarations]: Found implementation of procedure check_pending [2023-11-23 21:18:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 21:18:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:18:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure error_hangup [2023-11-23 21:18:31,028 INFO L138 BoogieDeclarations]: Found implementation of procedure error_hangup [2023-11-23 21:18:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2023-11-23 21:18:31,029 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2023-11-23 21:18:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_send_skb [2023-11-23 21:18:31,029 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_send_skb [2023-11-23 21:18:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2023-11-23 21:18:31,029 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2023-11-23 21:18:31,030 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2023-11-23 21:18:31,030 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2023-11-23 21:18:31,030 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:18:31,030 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:18:31,030 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2023-11-23 21:18:31,030 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2023-11-23 21:18:31,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:18:31,031 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2023-11-23 21:18:31,031 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2023-11-23 21:18:31,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:18:31,031 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2023-11-23 21:18:31,032 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2023-11-23 21:18:31,032 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:18:31,032 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:18:31,032 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:18:31,033 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:18:31,033 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-11-23 21:18:31,034 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-11-23 21:18:31,034 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:18:31,034 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:18:31,034 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cb [2023-11-23 21:18:31,034 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cb [2023-11-23 21:18:31,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-23 21:18:31,035 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-23 21:18:31,036 INFO L130 BoogieDeclarations]: Found specification of procedure stopurbs [2023-11-23 21:18:31,036 INFO L138 BoogieDeclarations]: Found implementation of procedure stopurbs [2023-11-23 21:18:31,036 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2023-11-23 21:18:31,036 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2023-11-23 21:18:31,036 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 21:18:31,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 21:18:31,037 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 21:18:31,037 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 21:18:31,037 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2023-11-23 21:18:31,037 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2023-11-23 21:18:31,038 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2023-11-23 21:18:31,038 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2023-11-23 21:18:31,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:18:31,038 INFO L130 BoogieDeclarations]: Found specification of procedure dump_urb [2023-11-23 21:18:31,038 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_urb [2023-11-23 21:18:31,039 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-23 21:18:31,039 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-23 21:18:31,039 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-23 21:18:31,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-23 21:18:31,039 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2023-11-23 21:18:31,039 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2023-11-23 21:18:31,040 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2023-11-23 21:18:31,040 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2023-11-23 21:18:31,040 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-23 21:18:31,040 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-23 21:18:31,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:18:31,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:18:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-11-23 21:18:31,041 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-11-23 21:18:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2023-11-23 21:18:31,041 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2023-11-23 21:18:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:18:31,042 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:18:31,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:18:31,042 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_rcmsg [2023-11-23 21:18:31,042 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_rcmsg [2023-11-23 21:18:31,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:18:31,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:18:31,043 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2023-11-23 21:18:31,043 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2023-11-23 21:18:31,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:18:31,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:18:31,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:18:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-23 21:18:31,044 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-23 21:18:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:18:31,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:18:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2023-11-23 21:18:31,045 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2023-11-23 21:18:31,045 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2023-11-23 21:18:31,045 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2023-11-23 21:18:31,045 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_input [2023-11-23 21:18:31,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_input [2023-11-23 21:18:31,045 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2023-11-23 21:18:31,046 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2023-11-23 21:18:31,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:18:31,046 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2023-11-23 21:18:31,046 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2023-11-23 21:18:31,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:18:31,046 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2023-11-23 21:18:31,047 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2023-11-23 21:18:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-11-23 21:18:31,047 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-11-23 21:18:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-23 21:18:31,047 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-23 21:18:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 21:18:31,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 21:18:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2023-11-23 21:18:31,048 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2023-11-23 21:18:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 21:18:31,048 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 21:18:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-23 21:18:31,049 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-23 21:18:31,049 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2023-11-23 21:18:31,049 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2023-11-23 21:18:31,049 INFO L130 BoogieDeclarations]: Found specification of procedure update_basstate [2023-11-23 21:18:31,050 INFO L138 BoogieDeclarations]: Found implementation of procedure update_basstate [2023-11-23 21:18:31,050 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-23 21:18:31,050 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-23 21:18:31,050 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-23 21:18:31,050 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-23 21:18:31,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:18:31,051 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2023-11-23 21:18:31,051 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2023-11-23 21:18:31,051 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2023-11-23 21:18:31,051 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2023-11-23 21:18:31,051 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-23 21:18:31,052 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-23 21:18:31,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:18:31,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:18:31,847 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:18:31,855 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:18:32,244 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:18:40,170 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:18:42,302 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:18:42,302 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:18:42,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:42 BoogieIcfgContainer [2023-11-23 21:18:42,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:18:42,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:18:42,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:18:42,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:18:42,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:18:25" (1/3) ... [2023-11-23 21:18:42,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41e0e347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:42, skipping insertion in model container [2023-11-23 21:18:42,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:30" (2/3) ... [2023-11-23 21:18:42,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41e0e347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:42, skipping insertion in model container [2023-11-23 21:18:42,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:42" (3/3) ... [2023-11-23 21:18:42,316 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2023-11-23 21:18:42,337 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:18:42,337 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:18:42,426 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:18:42,434 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;@330f3481, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:18:42,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:18:42,446 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) [2023-11-23 21:18:42,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-23 21:18:42,472 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:42,473 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] [2023-11-23 21:18:42,474 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:42,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:42,479 INFO L85 PathProgramCache]: Analyzing trace with hash -683685091, now seen corresponding path program 1 times [2023-11-23 21:18:42,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:42,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816366760] [2023-11-23 21:18:42,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:42,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:44,399 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-23 21:18:44,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:44,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816366760] [2023-11-23 21:18:44,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816366760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:44,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:44,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:18:44,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635168893] [2023-11-23 21:18:44,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:44,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:18:44,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:44,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:18:44,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:44,454 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) [2023-11-23 21:18:45,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:18:49,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:49,051 INFO L93 Difference]: Finished difference Result 4200 states and 6284 transitions. [2023-11-23 21:18:49,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:18:49,054 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 [2023-11-23 21:18:49,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:49,105 INFO L225 Difference]: With dead ends: 4200 [2023-11-23 21:18:49,105 INFO L226 Difference]: Without dead ends: 2586 [2023-11-23 21:18:49,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:49,127 INFO L413 NwaCegarLoop]: 2067 mSDtfsCounter, 1737 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:49,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 4022 Invalid, 492 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-23 21:18:49,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2586 states. [2023-11-23 21:18:49,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2586 to 2583. [2023-11-23 21:18:49,433 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) [2023-11-23 21:18:49,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 3778 transitions. [2023-11-23 21:18:49,471 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 3778 transitions. Word has length 125 [2023-11-23 21:18:49,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:49,473 INFO L495 AbstractCegarLoop]: Abstraction has 2583 states and 3778 transitions. [2023-11-23 21:18:49,473 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) [2023-11-23 21:18:49,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 3778 transitions. [2023-11-23 21:18:49,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-23 21:18:49,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:49,482 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] [2023-11-23 21:18:49,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:18:49,483 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:49,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:49,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1016275817, now seen corresponding path program 1 times [2023-11-23 21:18:49,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:49,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91929022] [2023-11-23 21:18:49,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:49,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:50,893 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-23 21:18:50,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:50,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91929022] [2023-11-23 21:18:50,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91929022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:50,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:50,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:18:50,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592396452] [2023-11-23 21:18:50,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:50,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:18:50,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:50,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:18:50,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:50,898 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) [2023-11-23 21:18:55,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:55,595 INFO L93 Difference]: Finished difference Result 6626 states and 9681 transitions. [2023-11-23 21:18:55,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:18:55,596 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 [2023-11-23 21:18:55,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:55,636 INFO L225 Difference]: With dead ends: 6626 [2023-11-23 21:18:55,636 INFO L226 Difference]: Without dead ends: 4068 [2023-11-23 21:18:55,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:55,654 INFO L413 NwaCegarLoop]: 1947 mSDtfsCounter, 1363 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 3749 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:55,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 3749 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-23 21:18:55,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4068 states. [2023-11-23 21:18:55,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4068 to 4065. [2023-11-23 21:18:55,982 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) [2023-11-23 21:18:56,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4065 states to 4065 states and 5934 transitions. [2023-11-23 21:18:56,022 INFO L78 Accepts]: Start accepts. Automaton has 4065 states and 5934 transitions. Word has length 126 [2023-11-23 21:18:56,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:56,023 INFO L495 AbstractCegarLoop]: Abstraction has 4065 states and 5934 transitions. [2023-11-23 21:18:56,023 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) [2023-11-23 21:18:56,024 INFO L276 IsEmpty]: Start isEmpty. Operand 4065 states and 5934 transitions. [2023-11-23 21:18:56,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-23 21:18:56,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:56,027 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, 1, 1] [2023-11-23 21:18:56,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:18:56,028 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:56,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:56,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1864893900, now seen corresponding path program 1 times [2023-11-23 21:18:56,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:56,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138384475] [2023-11-23 21:18:56,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:56,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:58,019 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-23 21:18:58,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:58,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138384475] [2023-11-23 21:18:58,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138384475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:58,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:58,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:18:58,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575823062] [2023-11-23 21:18:58,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:58,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:18:58,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:58,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:18:58,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:18:58,026 INFO L87 Difference]: Start difference. First operand 4065 states and 5934 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2023-11-23 21:18:59,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:01,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:05,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:05,300 INFO L93 Difference]: Finished difference Result 4536 states and 6546 transitions. [2023-11-23 21:19:05,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:19:05,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) Word has length 130 [2023-11-23 21:19:05,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:05,343 INFO L225 Difference]: With dead ends: 4536 [2023-11-23 21:19:05,343 INFO L226 Difference]: Without dead ends: 4533 [2023-11-23 21:19:05,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:19:05,349 INFO L413 NwaCegarLoop]: 1990 mSDtfsCounter, 1805 mSDsluCounter, 2415 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 4405 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:05,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1805 Valid, 4405 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 569 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2023-11-23 21:19:05,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4533 states. [2023-11-23 21:19:05,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4533 to 4489. [2023-11-23 21:19:05,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4489 states, 2852 states have (on average 1.3622019635343618) internal successors, (3885), 2982 states have internal predecessors, (3885), 1294 states have call successors, (1294), 351 states have call predecessors, (1294), 342 states have return successors, (1295), 1209 states have call predecessors, (1295), 1293 states have call successors, (1295) [2023-11-23 21:19:05,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4489 states to 4489 states and 6474 transitions. [2023-11-23 21:19:05,739 INFO L78 Accepts]: Start accepts. Automaton has 4489 states and 6474 transitions. Word has length 130 [2023-11-23 21:19:05,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:05,740 INFO L495 AbstractCegarLoop]: Abstraction has 4489 states and 6474 transitions. [2023-11-23 21:19:05,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2023-11-23 21:19:05,741 INFO L276 IsEmpty]: Start isEmpty. Operand 4489 states and 6474 transitions. [2023-11-23 21:19:05,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-23 21:19:05,751 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:05,752 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:05,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:19:05,752 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:19:05,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:05,754 INFO L85 PathProgramCache]: Analyzing trace with hash 582825800, now seen corresponding path program 1 times [2023-11-23 21:19:05,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:05,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955092406] [2023-11-23 21:19:05,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:05,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat