./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--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_b7e64ae3-3ed0-4b5d-9aae-47e369750122/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e64ae3-3ed0-4b5d-9aae-47e369750122/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_b7e64ae3-3ed0-4b5d-9aae-47e369750122/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e64ae3-3ed0-4b5d-9aae-47e369750122/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e64ae3-3ed0-4b5d-9aae-47e369750122/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_b7e64ae3-3ed0-4b5d-9aae-47e369750122/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 006aa960ed1622b337a2cda4a1ad6a685b212b2d57c6c6998da1e861381a253d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:39:35,195 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:39:35,286 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e64ae3-3ed0-4b5d-9aae-47e369750122/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:39:35,292 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:39:35,292 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:39:35,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:39:35,321 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:39:35,321 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:39:35,322 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:39:35,323 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:39:35,323 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:39:35,324 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:39:35,325 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:39:35,327 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:39:35,328 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:39:35,329 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:39:35,330 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:39:35,333 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:39:35,334 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:39:35,334 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:39:35,335 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:39:35,336 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:39:35,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:39:35,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:39:35,338 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:39:35,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:39:35,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:39:35,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:39:35,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:39:35,340 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:39:35,341 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:39:35,342 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:39:35,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:39:35,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:39:35,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:39:35,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:39:35,344 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:39:35,344 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:39:35,345 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:39:35,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:39:35,345 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:39:35,346 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:39:35,346 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:39:35,346 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:39:35,346 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_b7e64ae3-3ed0-4b5d-9aae-47e369750122/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e64ae3-3ed0-4b5d-9aae-47e369750122/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 006aa960ed1622b337a2cda4a1ad6a685b212b2d57c6c6998da1e861381a253d [2023-11-23 20:39:35,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:39:35,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:39:35,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:39:35,714 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:39:35,714 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:39:35,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e64ae3-3ed0-4b5d-9aae-47e369750122/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2023-11-23 20:39:38,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:39:39,720 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:39:39,721 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e64ae3-3ed0-4b5d-9aae-47e369750122/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2023-11-23 20:39:39,779 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e64ae3-3ed0-4b5d-9aae-47e369750122/bin/utaipan-verify-mE87zJ7Ire/data/776ea4e19/0151a323b37d482d9787b76e95a610fa/FLAGb4d6145bd [2023-11-23 20:39:39,796 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e64ae3-3ed0-4b5d-9aae-47e369750122/bin/utaipan-verify-mE87zJ7Ire/data/776ea4e19/0151a323b37d482d9787b76e95a610fa [2023-11-23 20:39:39,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:39:39,801 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:39:39,803 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:39:39,803 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:39:39,812 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:39:39,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:39:39" (1/1) ... [2023-11-23 20:39:39,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b245c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:39, skipping insertion in model container [2023-11-23 20:39:39,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:39:39" (1/1) ... [2023-11-23 20:39:40,026 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:39:41,548 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e64ae3-3ed0-4b5d-9aae-47e369750122/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[171620,171633] [2023-11-23 20:39:42,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:39:43,198 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:39:43,339 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,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5548-5549] [2023-11-23 20:39:43,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5563] [2023-11-23 20:39:43,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5566] [2023-11-23 20:39:43,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5569] [2023-11-23 20:39:43,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5572] [2023-11-23 20:39:43,346 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)); [5597] [2023-11-23 20:39:43,367 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_b7e64ae3-3ed0-4b5d-9aae-47e369750122/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[171620,171633] [2023-11-23 20:39:43,753 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)); [10855] [2023-11-23 20:39:43,753 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"); [10863-10864] [2023-11-23 20:39:43,755 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" (1425), "i" (12UL)); [10910-10911] [2023-11-23 20:39:43,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:39:44,144 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:39:44,145 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:39:44,153 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:39:44,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:44 WrapperNode [2023-11-23 20:39:44,155 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:39:44,157 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:39:44,157 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:39:44,157 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:39:44,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:44" (1/1) ... [2023-11-23 20:39:44,291 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:44" (1/1) ... [2023-11-23 20:39:44,581 INFO L138 Inliner]: procedures = 318, calls = 4100, calls flagged for inlining = 135, calls inlined = 109, statements flattened = 7246 [2023-11-23 20:39:44,582 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:39:44,583 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:39:44,583 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:39:44,583 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:39:44,595 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:44" (1/1) ... [2023-11-23 20:39:44,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:44" (1/1) ... [2023-11-23 20:39:44,637 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:44" (1/1) ... [2023-11-23 20:39:44,637 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:44" (1/1) ... [2023-11-23 20:39:44,816 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:44" (1/1) ... [2023-11-23 20:39:44,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:44" (1/1) ... [2023-11-23 20:39:44,916 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:44" (1/1) ... [2023-11-23 20:39:44,945 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:44" (1/1) ... [2023-11-23 20:39:45,155 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:39:45,159 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:39:45,159 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:39:45,160 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:39:45,161 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:44" (1/1) ... [2023-11-23 20:39:45,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:39:45,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e64ae3-3ed0-4b5d-9aae-47e369750122/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:39:45,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e64ae3-3ed0-4b5d-9aae-47e369750122/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:39:45,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7e64ae3-3ed0-4b5d-9aae-47e369750122/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:39:45,257 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2023-11-23 20:39:45,257 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2023-11-23 20:39:45,257 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-23 20:39:45,258 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-23 20:39:45,258 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2023-11-23 20:39:45,258 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2023-11-23 20:39:45,259 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2023-11-23 20:39:45,259 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2023-11-23 20:39:45,260 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2023-11-23 20:39:45,260 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2023-11-23 20:39:45,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:39:45,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:39:45,261 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2023-11-23 20:39:45,261 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2023-11-23 20:39:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-11-23 20:39:45,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-11-23 20:39:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2023-11-23 20:39:45,263 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2023-11-23 20:39:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 20:39:45,264 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 20:39:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2023-11-23 20:39:45,265 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2023-11-23 20:39:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:39:45,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:39:45,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-11-23 20:39:45,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-11-23 20:39:45,266 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2023-11-23 20:39:45,267 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2023-11-23 20:39:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2023-11-23 20:39:45,267 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2023-11-23 20:39:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2023-11-23 20:39:45,267 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2023-11-23 20:39:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure freeurbs [2023-11-23 20:39:45,267 INFO L138 BoogieDeclarations]: Found implementation of procedure freeurbs [2023-11-23 20:39:45,268 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2023-11-23 20:39:45,268 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2023-11-23 20:39:45,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 20:39:45,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 20:39:45,268 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2023-11-23 20:39:45,268 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2023-11-23 20:39:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-23 20:39:45,269 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-23 20:39:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 20:39:45,269 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 20:39:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2023-11-23 20:39:45,269 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2023-11-23 20:39:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:39:45,270 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:39:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_43 [2023-11-23 20:39:45,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_43 [2023-11-23 20:39:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-23 20:39:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-23 20:39:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2023-11-23 20:39:45,273 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2023-11-23 20:39:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-11-23 20:39:45,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-11-23 20:39:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2023-11-23 20:39:45,273 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2023-11-23 20:39:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2023-11-23 20:39:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2023-11-23 20:39:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 20:39:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 20:39:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_22 [2023-11-23 20:39:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_22 [2023-11-23 20:39:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2023-11-23 20:39:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2023-11-23 20:39:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2023-11-23 20:39:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2023-11-23 20:39:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2023-11-23 20:39:45,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2023-11-23 20:39:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_20 [2023-11-23 20:39:45,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_20 [2023-11-23 20:39:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2023-11-23 20:39:45,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2023-11-23 20:39:45,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2023-11-23 20:39:45,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2023-11-23 20:39:45,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:39:45,279 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2023-11-23 20:39:45,279 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2023-11-23 20:39:45,279 INFO L130 BoogieDeclarations]: Found specification of procedure check_pending [2023-11-23 20:39:45,279 INFO L138 BoogieDeclarations]: Found implementation of procedure check_pending [2023-11-23 20:39:45,279 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 20:39:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:39:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2023-11-23 20:39:45,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2023-11-23 20:39:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2023-11-23 20:39:45,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2023-11-23 20:39:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure error_hangup [2023-11-23 20:39:45,281 INFO L138 BoogieDeclarations]: Found implementation of procedure error_hangup [2023-11-23 20:39:45,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_18 [2023-11-23 20:39:45,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_18 [2023-11-23 20:39:45,281 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2023-11-23 20:39:45,281 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2023-11-23 20:39:45,281 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_send_skb [2023-11-23 20:39:45,281 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_send_skb [2023-11-23 20:39:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2023-11-23 20:39:45,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2023-11-23 20:39:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2023-11-23 20:39:45,282 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2023-11-23 20:39:45,283 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 20:39:45,283 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 20:39:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2023-11-23 20:39:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2023-11-23 20:39:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:39:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure read_int_callback [2023-11-23 20:39:45,285 INFO L138 BoogieDeclarations]: Found implementation of procedure read_int_callback [2023-11-23 20:39:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2023-11-23 20:39:45,285 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2023-11-23 20:39:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:39:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2023-11-23 20:39:45,286 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2023-11-23 20:39:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:39:45,287 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:39:45,287 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_statmsg [2023-11-23 20:39:45,287 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_statmsg [2023-11-23 20:39:45,287 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 20:39:45,287 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 20:39:45,288 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-11-23 20:39:45,288 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-11-23 20:39:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure read_ctrl_callback [2023-11-23 20:39:45,289 INFO L138 BoogieDeclarations]: Found implementation of procedure read_ctrl_callback [2023-11-23 20:39:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 20:39:45,289 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 20:39:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cb [2023-11-23 20:39:45,289 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cb [2023-11-23 20:39:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 20:39:45,290 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 20:39:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure stopurbs [2023-11-23 20:39:45,290 INFO L138 BoogieDeclarations]: Found implementation of procedure stopurbs [2023-11-23 20:39:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 20:39:45,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 20:39:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2023-11-23 20:39:45,291 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2023-11-23 20:39:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 20:39:45,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 20:39:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 20:39:45,293 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 20:39:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2023-11-23 20:39:45,297 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2023-11-23 20:39:45,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2023-11-23 20:39:45,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2023-11-23 20:39:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_5 [2023-11-23 20:39:45,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_5 [2023-11-23 20:39:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2023-11-23 20:39:45,300 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2023-11-23 20:39:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:39:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure dump_urb [2023-11-23 20:39:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_urb [2023-11-23 20:39:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-23 20:39:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-23 20:39:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-23 20:39:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-23 20:39:45,307 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2023-11-23 20:39:45,307 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2023-11-23 20:39:45,307 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-23 20:39:45,307 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-23 20:39:45,307 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_4 [2023-11-23 20:39:45,307 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_4 [2023-11-23 20:39:45,307 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_hi_schedule [2023-11-23 20:39:45,307 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_hi_schedule [2023-11-23 20:39:45,308 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2023-11-23 20:39:45,308 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2023-11-23 20:39:45,308 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:39:45,308 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:39:45,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:39:45,308 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_rcmsg [2023-11-23 20:39:45,308 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_rcmsg [2023-11-23 20:39:45,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:39:45,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:39:45,309 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2023-11-23 20:39:45,309 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2023-11-23 20:39:45,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:39:45,309 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-23 20:39:45,309 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-23 20:39:45,309 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2023-11-23 20:39:45,310 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2023-11-23 20:39:45,310 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2023-11-23 20:39:45,310 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2023-11-23 20:39:45,310 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2023-11-23 20:39:45,310 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2023-11-23 20:39:45,310 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_input [2023-11-23 20:39:45,310 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_input [2023-11-23 20:39:45,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:39:45,311 INFO L130 BoogieDeclarations]: Found specification of procedure write_command_callback [2023-11-23 20:39:45,311 INFO L138 BoogieDeclarations]: Found implementation of procedure write_command_callback [2023-11-23 20:39:45,311 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2023-11-23 20:39:45,311 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2023-11-23 20:39:45,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 20:39:45,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 20:39:45,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:39:45,312 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 20:39:45,312 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:39:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:39:45,312 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2023-11-23 20:39:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2023-11-23 20:39:45,312 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-11-23 20:39:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-11-23 20:39:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-23 20:39:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-23 20:39:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 20:39:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 20:39:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2023-11-23 20:39:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2023-11-23 20:39:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 20:39:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 20:39:45,314 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2023-11-23 20:39:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2023-11-23 20:39:45,314 INFO L130 BoogieDeclarations]: Found specification of procedure update_basstate [2023-11-23 20:39:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure update_basstate [2023-11-23 20:39:45,314 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2023-11-23 20:39:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2023-11-23 20:39:45,314 INFO L130 BoogieDeclarations]: Found specification of procedure write_ctrl_callback [2023-11-23 20:39:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure write_ctrl_callback [2023-11-23 20:39:45,315 INFO L130 BoogieDeclarations]: Found specification of procedure read_iso_callback [2023-11-23 20:39:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure read_iso_callback [2023-11-23 20:39:45,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_41 [2023-11-23 20:39:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_41 [2023-11-23 20:39:45,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-11-23 20:39:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-11-23 20:39:45,316 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-23 20:39:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-23 20:39:45,316 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-23 20:39:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-23 20:39:45,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:39:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2023-11-23 20:39:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2023-11-23 20:39:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2023-11-23 20:39:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2023-11-23 20:39:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-23 20:39:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-23 20:39:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:39:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:39:46,185 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:39:46,194 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:39:46,723 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:39:48,322 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-11-23 20:39:55,710 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:39:58,437 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:39:58,437 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:39:58,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:39:58 BoogieIcfgContainer [2023-11-23 20:39:58,440 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:39:58,444 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:39:58,445 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:39:58,448 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:39:58,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:39:39" (1/3) ... [2023-11-23 20:39:58,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2035b028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:39:58, skipping insertion in model container [2023-11-23 20:39:58,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:44" (2/3) ... [2023-11-23 20:39:58,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2035b028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:39:58, skipping insertion in model container [2023-11-23 20:39:58,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:39:58" (3/3) ... [2023-11-23 20:39:58,452 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2023-11-23 20:39:58,474 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:39:58,474 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:39:58,590 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:39:58,598 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;@39b20130, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:39:58,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:39:58,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 2018 states, 1250 states have (on average 1.3528) internal successors, (1691), 1325 states have internal predecessors, (1691), 659 states have call successors, (659), 109 states have call predecessors, (659), 107 states have return successors, (649), 620 states have call predecessors, (649), 649 states have call successors, (649) [2023-11-23 20:39:58,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-23 20:39:58,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:39:58,635 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 20:39:58,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:39:58,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:39:58,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1032684780, now seen corresponding path program 1 times [2023-11-23 20:39:58,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:39:58,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812776626] [2023-11-23 20:39:58,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:39:58,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:39:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:40:00,072 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 20:40:00,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:40:00,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812776626] [2023-11-23 20:40:00,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812776626] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:40:00,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:40:00,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:40:00,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538857389] [2023-11-23 20:40:00,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:40:00,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:40:00,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:40:00,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:40:00,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:40:00,143 INFO L87 Difference]: Start difference. First operand has 2018 states, 1250 states have (on average 1.3528) internal successors, (1691), 1325 states have internal predecessors, (1691), 659 states have call successors, (659), 109 states have call predecessors, (659), 107 states have return successors, (649), 620 states have call predecessors, (649), 649 states have call successors, (649) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 20:40:04,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:40:04,144 INFO L93 Difference]: Finished difference Result 5948 states and 8841 transitions. [2023-11-23 20:40:04,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:40:04,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 54 [2023-11-23 20:40:04,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:40:04,226 INFO L225 Difference]: With dead ends: 5948 [2023-11-23 20:40:04,226 INFO L226 Difference]: Without dead ends: 3917 [2023-11-23 20:40:04,254 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 20:40:04,259 INFO L413 NwaCegarLoop]: 2712 mSDtfsCounter, 2874 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2874 SdHoareTripleChecker+Valid, 5392 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-23 20:40:04,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2874 Valid, 5392 Invalid, 583 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-23 20:40:04,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3917 states. [2023-11-23 20:40:04,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3917 to 3917. [2023-11-23 20:40:04,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3917 states, 2438 states have (on average 1.3441345365053323) internal successors, (3277), 2559 states have internal predecessors, (3277), 1267 states have call successors, (1267), 212 states have call predecessors, (1267), 211 states have return successors, (1262), 1204 states have call predecessors, (1262), 1262 states have call successors, (1262) [2023-11-23 20:40:04,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3917 states to 3917 states and 5806 transitions. [2023-11-23 20:40:04,720 INFO L78 Accepts]: Start accepts. Automaton has 3917 states and 5806 transitions. Word has length 54 [2023-11-23 20:40:04,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:40:04,722 INFO L495 AbstractCegarLoop]: Abstraction has 3917 states and 5806 transitions. [2023-11-23 20:40:04,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 20:40:04,723 INFO L276 IsEmpty]: Start isEmpty. Operand 3917 states and 5806 transitions. [2023-11-23 20:40:04,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 20:40:04,740 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:40:04,740 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 20:40:04,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:40:04,741 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:40:04,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:40:04,742 INFO L85 PathProgramCache]: Analyzing trace with hash -66252564, now seen corresponding path program 1 times [2023-11-23 20:40:04,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:40:04,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523620163] [2023-11-23 20:40:04,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:40:04,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:40:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:40:06,424 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 20:40:06,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:40:06,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523620163] [2023-11-23 20:40:06,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523620163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:40:06,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:40:06,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:40:06,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627362129] [2023-11-23 20:40:06,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:40:06,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:40:06,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:40:06,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:40:06,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:40:06,429 INFO L87 Difference]: Start difference. First operand 3917 states and 5806 transitions. 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, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-23 20:40:10,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:40:10,591 INFO L93 Difference]: Finished difference Result 7737 states and 11456 transitions. [2023-11-23 20:40:10,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:40:10,592 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, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 61 [2023-11-23 20:40:10,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:40:10,684 INFO L225 Difference]: With dead ends: 7737 [2023-11-23 20:40:10,685 INFO L226 Difference]: Without dead ends: 7734 [2023-11-23 20:40:10,693 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 20:40:10,700 INFO L413 NwaCegarLoop]: 2726 mSDtfsCounter, 2864 mSDsluCounter, 2662 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2864 SdHoareTripleChecker+Valid, 5388 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-23 20:40:10,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2864 Valid, 5388 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-23 20:40:10,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7734 states. [2023-11-23 20:40:11,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7734 to 7722. [2023-11-23 20:40:11,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 4808 states have (on average 1.3431780366056572) internal successors, (6458), 5048 states have internal predecessors, (6458), 2493 states have call successors, (2493), 423 states have call predecessors, (2493), 420 states have return successors, (2488), 2368 states have call predecessors, (2488), 2488 states have call successors, (2488) [2023-11-23 20:40:11,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 11439 transitions. [2023-11-23 20:40:11,441 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 11439 transitions. Word has length 61 [2023-11-23 20:40:11,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:40:11,443 INFO L495 AbstractCegarLoop]: Abstraction has 7722 states and 11439 transitions. [2023-11-23 20:40:11,443 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, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-23 20:40:11,443 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 11439 transitions. [2023-11-23 20:40:11,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 20:40:11,448 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:40:11,449 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 20:40:11,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:40:11,449 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:40:11,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:40:11,461 INFO L85 PathProgramCache]: Analyzing trace with hash -2054983806, now seen corresponding path program 1 times [2023-11-23 20:40:11,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:40:11,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431907056] [2023-11-23 20:40:11,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:40:11,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:40:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:40:12,605 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 20:40:12,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:40:12,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431907056] [2023-11-23 20:40:12,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431907056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:40:12,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:40:12,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:40:12,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866114247] [2023-11-23 20:40:12,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:40:12,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:40:12,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:40:12,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:40:12,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:40:12,609 INFO L87 Difference]: Start difference. First operand 7722 states and 11439 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-23 20:40:16,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:40:16,852 INFO L93 Difference]: Finished difference Result 11687 states and 17291 transitions. [2023-11-23 20:40:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:40:16,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 62 [2023-11-23 20:40:16,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:40:16,939 INFO L225 Difference]: With dead ends: 11687 [2023-11-23 20:40:16,939 INFO L226 Difference]: Without dead ends: 7751 [2023-11-23 20:40:16,973 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 20:40:16,977 INFO L413 NwaCegarLoop]: 2729 mSDtfsCounter, 2851 mSDsluCounter, 2665 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2851 SdHoareTripleChecker+Valid, 5394 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-23 20:40:16,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2851 Valid, 5394 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-23 20:40:16,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7751 states. [2023-11-23 20:40:17,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7751 to 7743. [2023-11-23 20:40:17,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7743 states, 4821 states have (on average 1.342252644679527) internal successors, (6471), 5061 states have internal predecessors, (6471), 2495 states have call successors, (2495), 429 states have call predecessors, (2495), 426 states have return successors, (2490), 2370 states have call predecessors, (2490), 2490 states have call successors, (2490) [2023-11-23 20:40:17,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7743 states to 7743 states and 11456 transitions. [2023-11-23 20:40:17,770 INFO L78 Accepts]: Start accepts. Automaton has 7743 states and 11456 transitions. Word has length 62 [2023-11-23 20:40:17,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:40:17,770 INFO L495 AbstractCegarLoop]: Abstraction has 7743 states and 11456 transitions. [2023-11-23 20:40:17,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-23 20:40:17,772 INFO L276 IsEmpty]: Start isEmpty. Operand 7743 states and 11456 transitions. [2023-11-23 20:40:17,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-23 20:40:17,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:40:17,776 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 20:40:17,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:40:17,776 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:40:17,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:40:17,778 INFO L85 PathProgramCache]: Analyzing trace with hash 718861999, now seen corresponding path program 1 times [2023-11-23 20:40:17,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:40:17,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571745947] [2023-11-23 20:40:17,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:40:17,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:40:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:40:18,320 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 20:40:18,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:40:18,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571745947] [2023-11-23 20:40:18,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571745947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:40:18,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:40:18,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:40:18,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345549373] [2023-11-23 20:40:18,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:40:18,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:40:18,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:40:18,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:40:18,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:40:18,325 INFO L87 Difference]: Start difference. First operand 7743 states and 11456 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, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)