./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--media--platform--timblogiw.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--media--platform--timblogiw.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje --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 177820d4eabfc5ee57ceefc8e45d1c58baa48df59132cf6258d84a611844e62c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:08:29,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:08:29,240 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 01:08:29,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:08:29,249 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:08:29,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:08:29,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:08:29,292 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:08:29,293 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:08:29,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:08:29,295 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:08:29,295 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:08:29,296 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:08:29,297 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:08:29,299 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:08:29,299 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:08:29,300 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:08:29,300 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:08:29,300 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:08:29,301 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:08:29,301 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:08:29,304 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:08:29,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:08:29,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:08:29,305 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:08:29,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:08:29,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:08:29,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:08:29,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:08:29,306 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:08:29,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:08:29,307 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:08:29,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:08:29,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:08:29,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:08:29,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:08:29,308 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:08:29,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:08:29,309 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:08:29,309 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:08:29,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:08:29,310 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:08:29,310 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:08:29,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:08:29,311 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_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 177820d4eabfc5ee57ceefc8e45d1c58baa48df59132cf6258d84a611844e62c [2024-11-09 01:08:29,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:08:29,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:08:29,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:08:29,650 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:08:29,650 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:08:29,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--media--platform--timblogiw.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-09 01:08:31,697 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:08:32,202 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:08:32,204 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--media--platform--timblogiw.ko-entry_point.cil.out.i [2024-11-09 01:08:32,265 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/data/fd7470479/040ac49ab5164cbf97cd8efbd386038f/FLAG4fa2b39a3 [2024-11-09 01:08:32,288 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/data/fd7470479/040ac49ab5164cbf97cd8efbd386038f [2024-11-09 01:08:32,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:08:32,295 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:08:32,297 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:08:32,297 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:08:32,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:08:32,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:08:32" (1/1) ... [2024-11-09 01:08:32,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af3339c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:32, skipping insertion in model container [2024-11-09 01:08:32,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:08:32" (1/1) ... [2024-11-09 01:08:32,453 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:08:33,166 WARN L1355 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4300] [2024-11-09 01:08:33,191 WARN L1355 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4822] [2024-11-09 01:08:33,191 WARN L1355 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4823-4824] [2024-11-09 01:08:33,509 WARN L250 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_42e70e81-913e-4364-8751-0670a620bc1f/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--media--platform--timblogiw.ko-entry_point.cil.out.i[151293,151306] [2024-11-09 01:08:34,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:08:34,516 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:08:34,647 WARN L1355 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4300] [2024-11-09 01:08:34,662 WARN L1355 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4822] [2024-11-09 01:08:34,663 WARN L1355 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4823-4824] [2024-11-09 01:08:34,665 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4906] [2024-11-09 01:08:34,673 WARN L250 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_42e70e81-913e-4364-8751-0670a620bc1f/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--media--platform--timblogiw.ko-entry_point.cil.out.i[151293,151306] [2024-11-09 01:08:34,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:08:35,057 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:08:35,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:35 WrapperNode [2024-11-09 01:08:35,059 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:08:35,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:08:35,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:08:35,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:08:35,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:35" (1/1) ... [2024-11-09 01:08:35,167 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:35" (1/1) ... [2024-11-09 01:08:36,173 INFO L138 Inliner]: procedures = 183, calls = 2514, calls flagged for inlining = 108, calls inlined = 97, statements flattened = 5575 [2024-11-09 01:08:36,173 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:08:36,174 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:08:36,174 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:08:36,175 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:08:36,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:35" (1/1) ... [2024-11-09 01:08:36,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:35" (1/1) ... [2024-11-09 01:08:36,685 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:35" (1/1) ... [2024-11-09 01:08:36,687 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:35" (1/1) ... [2024-11-09 01:08:37,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:35" (1/1) ... [2024-11-09 01:08:37,652 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:35" (1/1) ... [2024-11-09 01:08:37,692 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:35" (1/1) ... [2024-11-09 01:08:37,727 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:35" (1/1) ... [2024-11-09 01:08:37,760 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:08:37,762 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:08:37,762 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:08:37,762 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:08:37,763 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:35" (1/1) ... [2024-11-09 01:08:37,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:08:37,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:08:37,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:08:37,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:08:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-09 01:08:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-09 01:08:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2024-11-09 01:08:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2024-11-09 01:08:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2024-11-09 01:08:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2024-11-09 01:08:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 01:08:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure timblogiw_try_fmt [2024-11-09 01:08:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure timblogiw_try_fmt [2024-11-09 01:08:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 01:08:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 01:08:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure timblogiw_frame_size [2024-11-09 01:08:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure timblogiw_frame_size [2024-11-09 01:08:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 01:08:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 01:08:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 01:08:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_dma_contig_free [2024-11-09 01:08:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_dma_contig_free [2024-11-09 01:08:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 01:08:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 01:08:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure timblogiw_poll [2024-11-09 01:08:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure timblogiw_poll [2024-11-09 01:08:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-11-09 01:08:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-11-09 01:08:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 01:08:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 01:08:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 01:08:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 01:08:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 01:08:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-09 01:08:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-09 01:08:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 01:08:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 01:08:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-09 01:08:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-09 01:08:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure timblogiw_querystd [2024-11-09 01:08:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure timblogiw_querystd [2024-11-09 01:08:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_device_unregister [2024-11-09 01:08:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_device_unregister [2024-11-09 01:08:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure timblogiw_mmap [2024-11-09 01:08:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure timblogiw_mmap [2024-11-09 01:08:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 01:08:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 01:08:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2024-11-09 01:08:37,845 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2024-11-09 01:08:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 01:08:37,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 01:08:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:08:37,845 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:08:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 01:08:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:08:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 01:08:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 01:08:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-09 01:08:37,846 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-09 01:08:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2024-11-09 01:08:37,846 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2024-11-09 01:08:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure timblogiw_get_norm [2024-11-09 01:08:37,847 INFO L138 BoogieDeclarations]: Found implementation of procedure timblogiw_get_norm [2024-11-09 01:08:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 01:08:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_queue [2024-11-09 01:08:37,847 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_queue [2024-11-09 01:08:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2024-11-09 01:08:37,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2024-11-09 01:08:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_setup [2024-11-09 01:08:37,848 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_setup [2024-11-09 01:08:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2024-11-09 01:08:37,849 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2024-11-09 01:08:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 01:08:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2024-11-09 01:08:37,850 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2024-11-09 01:08:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 01:08:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure __dma_cap_set [2024-11-09 01:08:37,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __dma_cap_set [2024-11-09 01:08:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-09 01:08:37,850 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-09 01:08:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-09 01:08:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-09 01:08:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure timblogiw_bytes_per_line [2024-11-09 01:08:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure timblogiw_bytes_per_line [2024-11-09 01:08:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:08:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 01:08:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-09 01:08:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-09 01:08:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:08:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:08:38,620 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:08:38,623 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:08:38,809 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 01:08:57,020 INFO L? ?]: Removed 1404 outVars from TransFormulas that were not future-live. [2024-11-09 01:08:57,020 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:08:58,711 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:08:58,711 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:08:58,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:08:58 BoogieIcfgContainer [2024-11-09 01:08:58,712 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:08:58,714 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:08:58,714 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:08:58,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:08:58,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:08:32" (1/3) ... [2024-11-09 01:08:58,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110c5095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:08:58, skipping insertion in model container [2024-11-09 01:08:58,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:35" (2/3) ... [2024-11-09 01:08:58,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110c5095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:08:58, skipping insertion in model container [2024-11-09 01:08:58,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:08:58" (3/3) ... [2024-11-09 01:08:58,721 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--media--platform--timblogiw.ko-entry_point.cil.out.i [2024-11-09 01:08:58,741 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:08:58,741 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:08:58,821 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:08:58,831 INFO L333 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, 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;@d07fda2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:08:58,832 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:08:58,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 668 states, 429 states have (on average 1.3613053613053614) internal successors, (584), 440 states have internal predecessors, (584), 203 states have call successors, (203), 35 states have call predecessors, (203), 34 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-09 01:08:58,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-09 01:08:58,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:08:58,892 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:08:58,893 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:08:58,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:08:58,898 INFO L85 PathProgramCache]: Analyzing trace with hash 729897410, now seen corresponding path program 1 times [2024-11-09 01:08:58,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:08:58,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465362691] [2024-11-09 01:08:58,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:58,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:09:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:31,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2398 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2398 trivial. 0 not checked. [2024-11-09 01:09:31,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:09:31,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465362691] [2024-11-09 01:09:31,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465362691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:09:31,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:09:31,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:09:31,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588444951] [2024-11-09 01:09:31,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:09:31,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:09:31,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:09:31,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:09:31,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:09:31,495 INFO L87 Difference]: Start difference. First operand has 668 states, 429 states have (on average 1.3613053613053614) internal successors, (584), 440 states have internal predecessors, (584), 203 states have call successors, (203), 35 states have call predecessors, (203), 34 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2024-11-09 01:09:33,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:09:36,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:09:39,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:09:42,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:09:43,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:09:43,789 INFO L93 Difference]: Finished difference Result 1727 states and 2533 transitions. [2024-11-09 01:09:43,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:09:43,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 272 [2024-11-09 01:09:43,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:09:43,818 INFO L225 Difference]: With dead ends: 1727 [2024-11-09 01:09:43,818 INFO L226 Difference]: Without dead ends: 1119 [2024-11-09 01:09:43,825 INFO L431 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 [2024-11-09 01:09:43,829 INFO L432 NwaCegarLoop]: 886 mSDtfsCounter, 794 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:09:43,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 1631 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 209 Invalid, 4 Unknown, 0 Unchecked, 12.1s Time] [2024-11-09 01:09:43,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2024-11-09 01:09:44,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1118. [2024-11-09 01:09:44,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 741 states have (on average 1.3562753036437247) internal successors, (1005), 746 states have internal predecessors, (1005), 313 states have call successors, (313), 64 states have call predecessors, (313), 63 states have return successors, (312), 311 states have call predecessors, (312), 312 states have call successors, (312) [2024-11-09 01:09:44,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1630 transitions. [2024-11-09 01:09:44,037 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1630 transitions. Word has length 272 [2024-11-09 01:09:44,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:09:44,039 INFO L471 AbstractCegarLoop]: Abstraction has 1118 states and 1630 transitions. [2024-11-09 01:09:44,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2024-11-09 01:09:44,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1630 transitions. [2024-11-09 01:09:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-09 01:09:44,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:09:44,051 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:09:44,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:09:44,052 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:09:44,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:09:44,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1127044129, now seen corresponding path program 1 times [2024-11-09 01:09:44,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:09:44,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421797775] [2024-11-09 01:09:44,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:44,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:10:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:14,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3466 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3466 trivial. 0 not checked. [2024-11-09 01:10:14,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:10:14,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421797775] [2024-11-09 01:10:14,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421797775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:10:14,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:10:14,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:10:14,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889148606] [2024-11-09 01:10:14,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:10:14,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:10:14,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:10:14,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:10:14,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:10:14,276 INFO L87 Difference]: Start difference. First operand 1118 states and 1630 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-11-09 01:10:16,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:10:18,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:10:21,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:10:24,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:10:27,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:10:30,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:10:32,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:10:34,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:10:34,606 INFO L93 Difference]: Finished difference Result 2119 states and 3103 transitions. [2024-11-09 01:10:34,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:10:34,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 324 [2024-11-09 01:10:34,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:10:34,629 INFO L225 Difference]: With dead ends: 2119 [2024-11-09 01:10:34,630 INFO L226 Difference]: Without dead ends: 2116 [2024-11-09 01:10:34,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:10:34,633 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 827 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2488 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:10:34,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 2488 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 271 Invalid, 7 Unknown, 0 Unchecked, 20.1s Time] [2024-11-09 01:10:34,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2024-11-09 01:10:34,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 2102. [2024-11-09 01:10:34,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2102 states, 1412 states have (on average 1.3718130311614731) internal successors, (1937), 1424 states have internal predecessors, (1937), 574 states have call successors, (574), 118 states have call predecessors, (574), 115 states have return successors, (573), 565 states have call predecessors, (573), 573 states have call successors, (573) [2024-11-09 01:10:34,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 3084 transitions. [2024-11-09 01:10:34,788 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 3084 transitions. Word has length 324 [2024-11-09 01:10:34,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:10:34,790 INFO L471 AbstractCegarLoop]: Abstraction has 2102 states and 3084 transitions. [2024-11-09 01:10:34,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-11-09 01:10:34,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 3084 transitions. [2024-11-09 01:10:34,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-09 01:10:34,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:10:34,814 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 4, 4, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:10:34,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:10:34,816 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:10:34,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:10:34,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1969682206, now seen corresponding path program 1 times [2024-11-09 01:10:34,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:10:34,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526397824] [2024-11-09 01:10:34,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:34,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:11:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:11:04,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3485 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3472 trivial. 0 not checked. [2024-11-09 01:11:04,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:11:04,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526397824] [2024-11-09 01:11:04,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526397824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:11:04,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:11:04,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:11:04,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488402980] [2024-11-09 01:11:04,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:11:04,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:11:04,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:11:04,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:11:04,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:11:04,215 INFO L87 Difference]: Start difference. First operand 2102 states and 3084 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2024-11-09 01:11:06,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:11:08,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:11:11,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:11:14,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:11:17,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:11:19,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:11:19,715 INFO L93 Difference]: Finished difference Result 6032 states and 8834 transitions. [2024-11-09 01:11:19,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:11:19,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) Word has length 378 [2024-11-09 01:11:19,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:11:19,743 INFO L225 Difference]: With dead ends: 6032 [2024-11-09 01:11:19,743 INFO L226 Difference]: Without dead ends: 4009 [2024-11-09 01:11:19,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:11:19,756 INFO L432 NwaCegarLoop]: 1380 mSDtfsCounter, 798 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 12 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:11:19,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 2199 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 240 Invalid, 5 Unknown, 0 Unchecked, 15.3s Time] [2024-11-09 01:11:19,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4009 states. [2024-11-09 01:11:19,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4009 to 4006. [2024-11-09 01:11:19,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4006 states, 2715 states have (on average 1.3705340699815838) internal successors, (3721), 2733 states have internal predecessors, (3721), 1060 states have call successors, (1060), 235 states have call predecessors, (1060), 230 states have return successors, (1059), 1049 states have call predecessors, (1059), 1059 states have call successors, (1059) [2024-11-09 01:11:19,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4006 states to 4006 states and 5840 transitions. [2024-11-09 01:11:19,982 INFO L78 Accepts]: Start accepts. Automaton has 4006 states and 5840 transitions. Word has length 378 [2024-11-09 01:11:19,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:11:19,984 INFO L471 AbstractCegarLoop]: Abstraction has 4006 states and 5840 transitions. [2024-11-09 01:11:19,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2024-11-09 01:11:19,984 INFO L276 IsEmpty]: Start isEmpty. Operand 4006 states and 5840 transitions. [2024-11-09 01:11:20,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-09 01:11:20,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:11:20,004 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 4, 4, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:11:20,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 01:11:20,005 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:11:20,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:11:20,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1138040748, now seen corresponding path program 1 times [2024-11-09 01:11:20,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:11:20,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649976958] [2024-11-09 01:11:20,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:11:20,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:11:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:11:48,049 INFO L134 CoverageAnalysis]: Checked inductivity of 3485 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3479 trivial. 0 not checked. [2024-11-09 01:11:48,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:11:48,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649976958] [2024-11-09 01:11:48,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649976958] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:11:48,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767438998] [2024-11-09 01:11:48,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:11:48,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:11:48,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:11:48,055 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:11:48,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:13:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:13:19,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 6821 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:13:19,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:13:19,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3485 backedges. 989 proven. 0 refuted. 0 times theorem prover too weak. 2496 trivial. 0 not checked. [2024-11-09 01:13:19,760 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:13:19,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767438998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:13:19,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:13:19,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-09 01:13:19,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333261271] [2024-11-09 01:13:19,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:13:19,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:13:19,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:13:19,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:13:19,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:13:19,764 INFO L87 Difference]: Start difference. First operand 4006 states and 5840 transitions. Second operand has 4 states, 3 states have (on average 39.333333333333336) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (62), 2 states have call predecessors, (62), 3 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-09 01:13:21,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:24,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:26,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:29,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:32,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:34,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:37,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:13:37,471 INFO L93 Difference]: Finished difference Result 7956 states and 11604 transitions. [2024-11-09 01:13:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:13:37,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 39.333333333333336) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (62), 2 states have call predecessors, (62), 3 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 378 [2024-11-09 01:13:37,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:13:37,500 INFO L225 Difference]: With dead ends: 7956 [2024-11-09 01:13:37,501 INFO L226 Difference]: Without dead ends: 4018 [2024-11-09 01:13:37,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:13:37,516 INFO L432 NwaCegarLoop]: 869 mSDtfsCounter, 0 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 4 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:13:37,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2600 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 282 Invalid, 6 Unknown, 0 Unchecked, 17.5s Time] [2024-11-09 01:13:37,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4018 states. [2024-11-09 01:13:37,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4018 to 4018. [2024-11-09 01:13:37,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4018 states, 2723 states have (on average 1.3709144326110907) internal successors, (3733), 2745 states have internal predecessors, (3733), 1060 states have call successors, (1060), 235 states have call predecessors, (1060), 234 states have return successors, (1063), 1049 states have call predecessors, (1063), 1059 states have call successors, (1063) [2024-11-09 01:13:37,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4018 states to 4018 states and 5856 transitions. [2024-11-09 01:13:37,727 INFO L78 Accepts]: Start accepts. Automaton has 4018 states and 5856 transitions. Word has length 378 [2024-11-09 01:13:37,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:13:37,728 INFO L471 AbstractCegarLoop]: Abstraction has 4018 states and 5856 transitions. [2024-11-09 01:13:37,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 39.333333333333336) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (62), 2 states have call predecessors, (62), 3 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-09 01:13:37,728 INFO L276 IsEmpty]: Start isEmpty. Operand 4018 states and 5856 transitions. [2024-11-09 01:13:37,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-11-09 01:13:37,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:13:37,748 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:13:37,950 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forcibly destroying the process [2024-11-09 01:13:38,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 137 [2024-11-09 01:13:38,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:13:38,145 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:13:38,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:13:38,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1276463964, now seen corresponding path program 1 times [2024-11-09 01:13:38,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:13:38,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671513964] [2024-11-09 01:13:38,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:13:38,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:14:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:14:06,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3507 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3491 trivial. 0 not checked. [2024-11-09 01:14:06,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:14:06,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671513964] [2024-11-09 01:14:06,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671513964] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:14:06,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304397897] [2024-11-09 01:14:06,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:06,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:14:06,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:14:06,297 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:14:06,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e70e81-913e-4364-8751-0670a620bc1f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process