./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 527bcce2 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_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/bin/utaipan-verify-QoSU8krkJ5/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_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/bin/utaipan-verify-QoSU8krkJ5 --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-527bcce [2023-11-21 19:40:31,889 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:40:31,981 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:40:31,993 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:40:31,994 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:40:32,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:40:32,029 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:40:32,030 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:40:32,031 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:40:32,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:40:32,037 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:40:32,038 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:40:32,039 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:40:32,040 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:40:32,040 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:40:32,041 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:40:32,041 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:40:32,041 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:40:32,042 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:40:32,042 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:40:32,043 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:40:32,043 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:40:32,044 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:40:32,045 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:40:32,045 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:40:32,046 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:40:32,046 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:40:32,046 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:40:32,047 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:40:32,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:40:32,049 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:40:32,049 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:40:32,049 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:40:32,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:40:32,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:40:32,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:40:32,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:40:32,050 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:40:32,051 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:40:32,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:40:32,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:40:32,052 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:40:32,052 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:40:32,052 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:40:32,053 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_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 [2023-11-21 19:40:32,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:40:32,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:40:32,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:40:32,362 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:40:32,362 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:40:32,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/bin/utaipan-verify-QoSU8krkJ5/../../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 [2023-11-21 19:40:35,585 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:40:36,434 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:40:36,434 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/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 [2023-11-21 19:40:36,479 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/bin/utaipan-verify-QoSU8krkJ5/data/9692b2de0/67e211bb80ec4c0982fd7e69a14f6557/FLAG2842319ba [2023-11-21 19:40:36,494 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/bin/utaipan-verify-QoSU8krkJ5/data/9692b2de0/67e211bb80ec4c0982fd7e69a14f6557 [2023-11-21 19:40:36,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:40:36,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:40:36,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:40:36,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:40:36,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:40:36,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:40:36" (1/1) ... [2023-11-21 19:40:36,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d2d6ff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:40:36, skipping insertion in model container [2023-11-21 19:40:36,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:40:36" (1/1) ... [2023-11-21 19:40:36,683 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:40:39,804 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/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] [2023-11-21 19:40:39,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:40:40,054 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:40:40,232 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] [2023-11-21 19:40:40,238 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] [2023-11-21 19:40:40,682 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] [2023-11-21 19:40:40,683 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] [2023-11-21 19:40:40,685 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] [2023-11-21 19:40:40,799 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/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] [2023-11-21 19:40:40,809 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:40:41,094 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:40:41,103 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:40:41,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:40:41 WrapperNode [2023-11-21 19:40:41,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:40:41,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:40:41,106 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:40:41,106 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:40:41,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:40:41" (1/1) ... [2023-11-21 19:40:41,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:40:41" (1/1) ... [2023-11-21 19:40:41,582 INFO L138 Inliner]: procedures = 341, calls = 4121, calls flagged for inlining = 136, calls inlined = 92, statements flattened = 6066 [2023-11-21 19:40:41,583 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:40:41,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:40:41,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:40:41,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:40:41,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:40:41" (1/1) ... [2023-11-21 19:40:41,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:40:41" (1/1) ... [2023-11-21 19:40:41,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:40:41" (1/1) ... [2023-11-21 19:40:41,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:40:41" (1/1) ... [2023-11-21 19:40:41,896 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:40:41" (1/1) ... [2023-11-21 19:40:41,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:40:41" (1/1) ... [2023-11-21 19:40:41,992 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:40:41" (1/1) ... [2023-11-21 19:40:42,016 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:40:41" (1/1) ... [2023-11-21 19:40:42,058 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:40:42,059 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:40:42,059 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:40:42,059 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:40:42,060 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:40:41" (1/1) ... [2023-11-21 19:40:42,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:40:42,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:40:42,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:40:42,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ffc23e-d24a-40bb-bc71-7f5735ddacdf/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:40:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2023-11-21 19:40:42,146 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2023-11-21 19:40:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2023-11-21 19:40:42,147 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2023-11-21 19:40:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-21 19:40:42,147 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-21 19:40:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2023-11-21 19:40:42,147 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2023-11-21 19:40:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-21 19:40:42,147 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-21 19:40:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2023-11-21 19:40:42,148 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2023-11-21 19:40:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 19:40:42,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 19:40:42,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 19:40:42,149 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 19:40:42,149 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2023-11-21 19:40:42,150 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2023-11-21 19:40:42,150 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2023-11-21 19:40:42,151 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2023-11-21 19:40:42,151 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2023-11-21 19:40:42,151 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2023-11-21 19:40:42,152 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2023-11-21 19:40:42,152 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2023-11-21 19:40:42,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-21 19:40:42,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-21 19:40:42,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 19:40:42,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 19:40:42,153 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2023-11-21 19:40:42,154 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2023-11-21 19:40:42,154 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2023-11-21 19:40:42,154 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2023-11-21 19:40:42,154 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2023-11-21 19:40:42,154 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2023-11-21 19:40:42,154 INFO L130 BoogieDeclarations]: Found specification of procedure freeurbs [2023-11-21 19:40:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure freeurbs [2023-11-21 19:40:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2023-11-21 19:40:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2023-11-21 19:40:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-11-21 19:40:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-11-21 19:40:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 19:40:42,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 19:40:42,156 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2023-11-21 19:40:42,156 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2023-11-21 19:40:42,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 19:40:42,156 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 19:40:42,156 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2023-11-21 19:40:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2023-11-21 19:40:42,157 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:40:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:40:42,157 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-21 19:40:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-21 19:40:42,158 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2023-11-21 19:40:42,158 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2023-11-21 19:40:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2023-11-21 19:40:42,159 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2023-11-21 19:40:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2023-11-21 19:40:42,160 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2023-11-21 19:40:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 19:40:42,161 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 19:40:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2023-11-21 19:40:42,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2023-11-21 19:40:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2023-11-21 19:40:42,161 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2023-11-21 19:40:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2023-11-21 19:40:42,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2023-11-21 19:40:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2023-11-21 19:40:42,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2023-11-21 19:40:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:40:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_5 [2023-11-21 19:40:42,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_5 [2023-11-21 19:40:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-21 19:40:42,164 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-21 19:40:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2023-11-21 19:40:42,164 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2023-11-21 19:40:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure check_pending [2023-11-21 19:40:42,165 INFO L138 BoogieDeclarations]: Found implementation of procedure check_pending [2023-11-21 19:40:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-21 19:40:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:40:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure error_hangup [2023-11-21 19:40:42,167 INFO L138 BoogieDeclarations]: Found implementation of procedure error_hangup [2023-11-21 19:40:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2023-11-21 19:40:42,167 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2023-11-21 19:40:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_send_skb [2023-11-21 19:40:42,167 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_send_skb [2023-11-21 19:40:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2023-11-21 19:40:42,168 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2023-11-21 19:40:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2023-11-21 19:40:42,168 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2023-11-21 19:40:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 19:40:42,168 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 19:40:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2023-11-21 19:40:42,169 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2023-11-21 19:40:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:40:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2023-11-21 19:40:42,169 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2023-11-21 19:40:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:40:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2023-11-21 19:40:42,170 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2023-11-21 19:40:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 19:40:42,170 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 19:40:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-21 19:40:42,171 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-21 19:40:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-11-21 19:40:42,172 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-11-21 19:40:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-21 19:40:42,172 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-21 19:40:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cb [2023-11-21 19:40:42,172 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cb [2023-11-21 19:40:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-21 19:40:42,174 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-21 19:40:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure stopurbs [2023-11-21 19:40:42,174 INFO L138 BoogieDeclarations]: Found implementation of procedure stopurbs [2023-11-21 19:40:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2023-11-21 19:40:42,174 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2023-11-21 19:40:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-21 19:40:42,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-21 19:40:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-21 19:40:42,175 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-21 19:40:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2023-11-21 19:40:42,176 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2023-11-21 19:40:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2023-11-21 19:40:42,176 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2023-11-21 19:40:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:40:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure dump_urb [2023-11-21 19:40:42,176 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_urb [2023-11-21 19:40:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-21 19:40:42,178 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-21 19:40:42,178 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-21 19:40:42,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-21 19:40:42,178 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2023-11-21 19:40:42,179 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2023-11-21 19:40:42,179 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2023-11-21 19:40:42,179 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2023-11-21 19:40:42,179 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-21 19:40:42,179 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-21 19:40:42,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-21 19:40:42,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-21 19:40:42,180 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-11-21 19:40:42,180 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-11-21 19:40:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2023-11-21 19:40:42,182 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2023-11-21 19:40:42,185 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 19:40:42,186 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 19:40:42,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:40:42,187 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_rcmsg [2023-11-21 19:40:42,187 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_rcmsg [2023-11-21 19:40:42,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 19:40:42,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 19:40:42,187 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2023-11-21 19:40:42,187 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2023-11-21 19:40:42,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-21 19:40:42,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-21 19:40:42,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:40:42,188 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-21 19:40:42,188 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-21 19:40:42,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-21 19:40:42,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-21 19:40:42,188 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2023-11-21 19:40:42,188 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2023-11-21 19:40:42,189 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2023-11-21 19:40:42,189 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2023-11-21 19:40:42,189 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_input [2023-11-21 19:40:42,189 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_input [2023-11-21 19:40:42,189 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2023-11-21 19:40:42,189 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2023-11-21 19:40:42,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:40:42,189 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2023-11-21 19:40:42,189 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2023-11-21 19:40:42,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:40:42,190 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2023-11-21 19:40:42,190 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2023-11-21 19:40:42,190 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-11-21 19:40:42,190 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-11-21 19:40:42,190 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-21 19:40:42,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-21 19:40:42,190 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-21 19:40:42,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-21 19:40:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2023-11-21 19:40:42,191 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2023-11-21 19:40:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-21 19:40:42,191 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-21 19:40:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-21 19:40:42,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-21 19:40:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2023-11-21 19:40:42,191 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2023-11-21 19:40:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure update_basstate [2023-11-21 19:40:42,192 INFO L138 BoogieDeclarations]: Found implementation of procedure update_basstate [2023-11-21 19:40:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-21 19:40:42,192 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-21 19:40:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-21 19:40:42,192 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-21 19:40:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:40:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2023-11-21 19:40:42,193 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2023-11-21 19:40:42,193 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2023-11-21 19:40:42,193 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2023-11-21 19:40:42,193 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-21 19:40:42,193 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-21 19:40:42,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:40:42,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:40:42,964 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:40:42,975 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:40:43,437 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 19:40:52,562 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:40:54,848 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:40:54,849 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 19:40:54,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:40:54 BoogieIcfgContainer [2023-11-21 19:40:54,853 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:40:54,858 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:40:54,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:40:54,862 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:40:54,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:40:36" (1/3) ... [2023-11-21 19:40:54,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4557d144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:40:54, skipping insertion in model container [2023-11-21 19:40:54,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:40:41" (2/3) ... [2023-11-21 19:40:54,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4557d144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:40:54, skipping insertion in model container [2023-11-21 19:40:54,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:40:54" (3/3) ... [2023-11-21 19:40:54,867 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2023-11-21 19:40:54,892 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:40:54,893 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:40:55,013 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:40:55,019 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;@34869236, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:40:55,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:40:55,036 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) [2023-11-21 19:40:55,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-21 19:40:55,072 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:40:55,078 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] [2023-11-21 19:40:55,079 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:40:55,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:40:55,085 INFO L85 PathProgramCache]: Analyzing trace with hash -683685091, now seen corresponding path program 1 times [2023-11-21 19:40:55,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:40:55,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521730729] [2023-11-21 19:40:55,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:40:55,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:40:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:40:57,203 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-21 19:40:57,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:40:57,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521730729] [2023-11-21 19:40:57,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521730729] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:40:57,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:40:57,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:40:57,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926440869] [2023-11-21 19:40:57,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:40:57,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:40:57,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:40:57,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:40:57,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:40:57,257 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) [2023-11-21 19:41:01,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:41:01,782 INFO L93 Difference]: Finished difference Result 4200 states and 6284 transitions. [2023-11-21 19:41:01,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:41:01,786 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 [2023-11-21 19:41:01,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:41:01,832 INFO L225 Difference]: With dead ends: 4200 [2023-11-21 19:41:01,832 INFO L226 Difference]: Without dead ends: 2586 [2023-11-21 19:41:01,852 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 [2023-11-21 19:41:01,856 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, 4.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:41:01,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 4022 Invalid, 492 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-21 19:41:01,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2586 states. [2023-11-21 19:41:02,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2586 to 2583. [2023-11-21 19:41:02,146 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) [2023-11-21 19:41:02,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 3778 transitions. [2023-11-21 19:41:02,181 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 3778 transitions. Word has length 125 [2023-11-21 19:41:02,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:41:02,184 INFO L495 AbstractCegarLoop]: Abstraction has 2583 states and 3778 transitions. [2023-11-21 19:41:02,184 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) [2023-11-21 19:41:02,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 3778 transitions. [2023-11-21 19:41:02,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-21 19:41:02,197 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:41:02,201 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:41:02,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:41:02,202 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:41:02,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:41:02,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1016275817, now seen corresponding path program 1 times [2023-11-21 19:41:02,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:41:02,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147559797] [2023-11-21 19:41:02,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:41:02,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:41:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:41:03,532 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-21 19:41:03,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:41:03,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147559797] [2023-11-21 19:41:03,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147559797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:41:03,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:41:03,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:41:03,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915055755] [2023-11-21 19:41:03,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:41:03,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:41:03,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:41:03,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:41:03,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:41:03,540 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) [2023-11-21 19:41:04,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:41:08,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:41:08,761 INFO L93 Difference]: Finished difference Result 6626 states and 9681 transitions. [2023-11-21 19:41:08,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:41:08,762 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 [2023-11-21 19:41:08,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:41:08,802 INFO L225 Difference]: With dead ends: 6626 [2023-11-21 19:41:08,802 INFO L226 Difference]: Without dead ends: 4068 [2023-11-21 19:41:08,819 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 [2023-11-21 19:41:08,821 INFO L413 NwaCegarLoop]: 1947 mSDtfsCounter, 1363 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s 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, 4.9s IncrementalHoareTripleChecker+Time [2023-11-21 19:41:08,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 3749 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-21 19:41:08,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4068 states. [2023-11-21 19:41:09,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4068 to 4065. [2023-11-21 19:41:09,046 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) [2023-11-21 19:41:09,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4065 states to 4065 states and 5934 transitions. [2023-11-21 19:41:09,089 INFO L78 Accepts]: Start accepts. Automaton has 4065 states and 5934 transitions. Word has length 126 [2023-11-21 19:41:09,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:41:09,090 INFO L495 AbstractCegarLoop]: Abstraction has 4065 states and 5934 transitions. [2023-11-21 19:41:09,091 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) [2023-11-21 19:41:09,091 INFO L276 IsEmpty]: Start isEmpty. Operand 4065 states and 5934 transitions. [2023-11-21 19:41:09,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-21 19:41:09,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:41:09,099 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] [2023-11-21 19:41:09,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:41:09,099 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:41:09,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:41:09,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1864893900, now seen corresponding path program 1 times [2023-11-21 19:41:09,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:41:09,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103328084] [2023-11-21 19:41:09,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:41:09,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:41:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:41:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-21 19:41:11,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:41:11,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103328084] [2023-11-21 19:41:11,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103328084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:41:11,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:41:11,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 19:41:11,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013001342] [2023-11-21 19:41:11,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:41:11,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:41:11,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:41:11,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:41:11,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:41:11,075 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) [2023-11-21 19:41:17,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:41:17,047 INFO L93 Difference]: Finished difference Result 4536 states and 6546 transitions. [2023-11-21 19:41:17,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:41:17,048 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 [2023-11-21 19:41:17,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:41:17,089 INFO L225 Difference]: With dead ends: 4536 [2023-11-21 19:41:17,089 INFO L226 Difference]: Without dead ends: 4533 [2023-11-21 19:41:17,092 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 [2023-11-21 19:41:17,099 INFO L413 NwaCegarLoop]: 1990 mSDtfsCounter, 1805 mSDsluCounter, 2415 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 4405 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-21 19:41:17,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1805 Valid, 4405 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-21 19:41:17,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4533 states. [2023-11-21 19:41:17,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4533 to 4489. [2023-11-21 19:41:17,378 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) [2023-11-21 19:41:17,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4489 states to 4489 states and 6474 transitions. [2023-11-21 19:41:17,404 INFO L78 Accepts]: Start accepts. Automaton has 4489 states and 6474 transitions. Word has length 130 [2023-11-21 19:41:17,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:41:17,405 INFO L495 AbstractCegarLoop]: Abstraction has 4489 states and 6474 transitions. [2023-11-21 19:41:17,405 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) [2023-11-21 19:41:17,405 INFO L276 IsEmpty]: Start isEmpty. Operand 4489 states and 6474 transitions. [2023-11-21 19:41:17,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-21 19:41:17,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:41:17,412 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] [2023-11-21 19:41:17,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 19:41:17,412 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:41:17,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:41:17,414 INFO L85 PathProgramCache]: Analyzing trace with hash 582825800, now seen corresponding path program 1 times [2023-11-21 19:41:17,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:41:17,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657698380] [2023-11-21 19:41:17,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:41:17,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:41:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:41:18,939 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2023-11-21 19:41:18,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:41:18,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657698380] [2023-11-21 19:41:18,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657698380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:41:18,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:41:18,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 19:41:18,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106327959] [2023-11-21 19:41:18,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:41:18,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:41:18,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:41:18,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:41:18,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:41:18,943 INFO L87 Difference]: Start difference. First operand 4489 states and 6474 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)