./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-08_1a-drivers--md--md-cluster.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/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_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/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_e02431e4-b8f7-4409-9abd-25faf348e774/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 03d5d1a576959110e79c00ca2825754bce7439905d85699b470a90adbbee10ad --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:50:21,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:50:21,837 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 05:50:21,846 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:50:21,847 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:50:21,885 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:50:21,886 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:50:21,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:50:21,887 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:50:21,889 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:50:21,889 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:50:21,889 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:50:21,890 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:50:21,890 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:50:21,890 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:50:21,893 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:50:21,893 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:50:21,894 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:50:21,894 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:50:21,894 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:50:21,895 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:50:21,895 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:50:21,896 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:50:21,896 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:50:21,897 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:50:21,897 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:50:21,913 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:50:21,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:50:21,914 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:50:21,914 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:50:21,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:50:21,914 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:50:21,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:50:21,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:50:21,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:50:21,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:50:21,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:50:21,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:50:21,919 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:50:21,919 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:50:21,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:50:21,921 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:50:21,921 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:50:21,921 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:50:21,921 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_e02431e4-b8f7-4409-9abd-25faf348e774/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03d5d1a576959110e79c00ca2825754bce7439905d85699b470a90adbbee10ad [2024-11-09 05:50:22,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:50:22,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:50:22,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:50:22,239 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:50:22,240 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:50:22,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-09 05:50:24,234 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:50:24,701 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:50:24,704 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2024-11-09 05:50:24,749 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/data/f3c4602da/2bd91a81446a476bbd49d6eb8c7e4804/FLAGe9bf4461c [2024-11-09 05:50:24,768 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/data/f3c4602da/2bd91a81446a476bbd49d6eb8c7e4804 [2024-11-09 05:50:24,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:50:24,774 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:50:24,775 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:50:24,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:50:24,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:50:24,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:50:24" (1/1) ... [2024-11-09 05:50:24,785 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e1927f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:50:24, skipping insertion in model container [2024-11-09 05:50:24,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:50:24" (1/1) ... [2024-11-09 05:50:24,908 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:50:26,188 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_e02431e4-b8f7-4409-9abd-25faf348e774/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i[164960,164973] [2024-11-09 05:50:26,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:50:26,245 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:50:26,385 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"); [4160] [2024-11-09 05:50:26,387 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; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [4167] [2024-11-09 05:50:26,391 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrq %1,%q0": "+r" (bitpos): "rm" (x)); [4182] [2024-11-09 05:50:26,676 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_e02431e4-b8f7-4409-9abd-25faf348e774/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i[164960,164973] [2024-11-09 05:50:26,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:50:26,777 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:50:26,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:50:26 WrapperNode [2024-11-09 05:50:26,778 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:50:26,779 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:50:26,779 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:50:26,779 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:50:26,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:50:26" (1/1) ... [2024-11-09 05:50:26,851 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:50:26" (1/1) ... [2024-11-09 05:50:26,928 INFO L138 Inliner]: procedures = 151, calls = 825, calls flagged for inlining = 67, calls inlined = 53, statements flattened = 1885 [2024-11-09 05:50:26,928 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:50:26,929 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:50:26,929 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:50:26,929 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:50:26,938 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:50:26" (1/1) ... [2024-11-09 05:50:26,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:50:26" (1/1) ... [2024-11-09 05:50:26,959 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:50:26" (1/1) ... [2024-11-09 05:50:26,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:50:26" (1/1) ... [2024-11-09 05:50:27,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:50:26" (1/1) ... [2024-11-09 05:50:27,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:50:26" (1/1) ... [2024-11-09 05:50:27,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:50:26" (1/1) ... [2024-11-09 05:50:27,082 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:50:26" (1/1) ... [2024-11-09 05:50:27,105 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:50:27,110 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:50:27,110 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:50:27,110 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:50:27,111 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:50:26" (1/1) ... [2024-11-09 05:50:27,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:50:27,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:50:27,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:50:27,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:50:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_lock_sync [2024-11-09 05:50:27,178 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_lock_sync [2024-11-09 05:50:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure lockres_free [2024-11-09 05:50:27,181 INFO L138 BoogieDeclarations]: Found implementation of procedure lockres_free [2024-11-09 05:50:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 05:50:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 05:50:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 05:50:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 05:50:27,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 05:50:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:50:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 05:50:27,182 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 05:50:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_release_lockspace [2024-11-09 05:50:27,182 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_release_lockspace [2024-11-09 05:50:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure lock_comm [2024-11-09 05:50:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_comm [2024-11-09 05:50:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 05:50:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 05:50:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 05:50:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 05:50:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-09 05:50:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-09 05:50:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2024-11-09 05:50:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2024-11-09 05:50:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 05:50:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 05:50:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2024-11-09 05:50:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2024-11-09 05:50:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:50:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 05:50:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 05:50:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2024-11-09 05:50:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2024-11-09 05:50:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2024-11-09 05:50:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2024-11-09 05:50:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 05:50:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 05:50:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_copy_from_slot [2024-11-09 05:50:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_copy_from_slot [2024-11-09 05:50:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-09 05:50:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-09 05:50:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:50:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:50:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:50:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-09 05:50:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-09 05:50:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2024-11-09 05:50:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2024-11-09 05:50:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure md_register_thread [2024-11-09 05:50:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure md_register_thread [2024-11-09 05:50:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:50:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure md_unregister_thread [2024-11-09 05:50:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure md_unregister_thread [2024-11-09 05:50:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2024-11-09 05:50:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2024-11-09 05:50:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:50:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:50:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure resync_send [2024-11-09 05:50:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure resync_send [2024-11-09 05:50:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2024-11-09 05:50:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2024-11-09 05:50:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure lockres_init [2024-11-09 05:50:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure lockres_init [2024-11-09 05:50:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:50:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_comm [2024-11-09 05:50:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_comm [2024-11-09 05:50:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2024-11-09 05:50:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2024-11-09 05:50:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:50:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 05:50:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure resync_info_update [2024-11-09 05:50:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure resync_info_update [2024-11-09 05:50:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 05:50:27,194 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 05:50:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-09 05:50:27,194 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-09 05:50:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure __sendmsg [2024-11-09 05:50:27,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __sendmsg [2024-11-09 05:50:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-09 05:50:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-09 05:50:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:50:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure pretty_uuid [2024-11-09 05:50:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pretty_uuid [2024-11-09 05:50:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 05:50:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:50:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:50:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure sendmsg [2024-11-09 05:50:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure sendmsg [2024-11-09 05:50:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_unlock_sync [2024-11-09 05:50:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_unlock_sync [2024-11-09 05:50:27,678 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:50:27,681 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:50:27,840 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 05:50:29,690 INFO L? ?]: Removed 783 outVars from TransFormulas that were not future-live. [2024-11-09 05:50:29,690 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:50:30,071 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:50:30,072 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 05:50:30,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:50:30 BoogieIcfgContainer [2024-11-09 05:50:30,076 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:50:30,078 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:50:30,078 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:50:30,082 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:50:30,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:50:24" (1/3) ... [2024-11-09 05:50:30,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e95e205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:50:30, skipping insertion in model container [2024-11-09 05:50:30,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:50:26" (2/3) ... [2024-11-09 05:50:30,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e95e205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:50:30, skipping insertion in model container [2024-11-09 05:50:30,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:50:30" (3/3) ... [2024-11-09 05:50:30,085 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2024-11-09 05:50:30,103 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:50:30,103 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:50:30,200 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:50:30,206 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;@147fe04d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:50:30,206 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:50:30,213 INFO L276 IsEmpty]: Start isEmpty. Operand has 529 states, 335 states have (on average 1.346268656716418) internal successors, (451), 346 states have internal predecessors, (451), 156 states have call successors, (156), 37 states have call predecessors, (156), 36 states have return successors, (152), 151 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-09 05:50:30,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-09 05:50:30,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:50:30,230 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:30,231 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:50:30,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:50:30,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1204706226, now seen corresponding path program 1 times [2024-11-09 05:50:30,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:50:30,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532176057] [2024-11-09 05:50:30,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:30,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:50:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:50:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2024-11-09 05:50:31,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:50:31,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532176057] [2024-11-09 05:50:31,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532176057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:50:31,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:50:31,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:50:31,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769311628] [2024-11-09 05:50:31,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:50:31,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:50:31,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:50:31,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:50:31,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:50:31,345 INFO L87 Difference]: Start difference. First operand has 529 states, 335 states have (on average 1.346268656716418) internal successors, (451), 346 states have internal predecessors, (451), 156 states have call successors, (156), 37 states have call predecessors, (156), 36 states have return successors, (152), 151 states have call predecessors, (152), 152 states have call successors, (152) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:50:32,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:50:32,550 INFO L93 Difference]: Finished difference Result 1495 states and 2154 transitions. [2024-11-09 05:50:32,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:50:32,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 146 [2024-11-09 05:50:32,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:50:32,583 INFO L225 Difference]: With dead ends: 1495 [2024-11-09 05:50:32,583 INFO L226 Difference]: Without dead ends: 987 [2024-11-09 05:50:32,599 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 05:50:32,604 INFO L432 NwaCegarLoop]: 688 mSDtfsCounter, 677 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:50:32,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 1362 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 05:50:32,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2024-11-09 05:50:32,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 984. [2024-11-09 05:50:32,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 636 states have (on average 1.3396226415094339) internal successors, (852), 645 states have internal predecessors, (852), 280 states have call successors, (280), 68 states have call predecessors, (280), 67 states have return successors, (278), 276 states have call predecessors, (278), 278 states have call successors, (278) [2024-11-09 05:50:32,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1410 transitions. [2024-11-09 05:50:32,785 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1410 transitions. Word has length 146 [2024-11-09 05:50:32,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:50:32,788 INFO L471 AbstractCegarLoop]: Abstraction has 984 states and 1410 transitions. [2024-11-09 05:50:32,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:50:32,788 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1410 transitions. [2024-11-09 05:50:32,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-09 05:50:32,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:50:32,796 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 05:50:32,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:50:32,797 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:50:32,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:50:32,798 INFO L85 PathProgramCache]: Analyzing trace with hash -2093443528, now seen corresponding path program 1 times [2024-11-09 05:50:32,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:50:32,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105023608] [2024-11-09 05:50:32,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:32,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:50:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:50:33,164 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2024-11-09 05:50:33,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:50:33,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105023608] [2024-11-09 05:50:33,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105023608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:50:33,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:50:33,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:50:33,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305210027] [2024-11-09 05:50:33,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:50:33,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:50:33,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:50:33,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:50:33,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:50:33,171 INFO L87 Difference]: Start difference. First operand 984 states and 1410 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-09 05:50:33,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:50:33,766 INFO L93 Difference]: Finished difference Result 1934 states and 2771 transitions. [2024-11-09 05:50:33,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:50:33,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 157 [2024-11-09 05:50:33,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:50:33,779 INFO L225 Difference]: With dead ends: 1934 [2024-11-09 05:50:33,779 INFO L226 Difference]: Without dead ends: 983 [2024-11-09 05:50:33,783 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 05:50:33,784 INFO L432 NwaCegarLoop]: 674 mSDtfsCounter, 741 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:50:33,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 674 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:50:33,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2024-11-09 05:50:33,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 983. [2024-11-09 05:50:33,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 635 states have (on average 1.3354330708661417) internal successors, (848), 644 states have internal predecessors, (848), 280 states have call successors, (280), 68 states have call predecessors, (280), 67 states have return successors, (278), 276 states have call predecessors, (278), 278 states have call successors, (278) [2024-11-09 05:50:33,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1406 transitions. [2024-11-09 05:50:33,866 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1406 transitions. Word has length 157 [2024-11-09 05:50:33,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:50:33,867 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1406 transitions. [2024-11-09 05:50:33,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-09 05:50:33,868 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1406 transitions. [2024-11-09 05:50:33,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-09 05:50:33,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:50:33,874 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-11-09 05:50:33,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:50:33,875 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:50:33,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:50:33,875 INFO L85 PathProgramCache]: Analyzing trace with hash 53526007, now seen corresponding path program 1 times [2024-11-09 05:50:33,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:50:33,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820934718] [2024-11-09 05:50:33,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:33,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:50:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:50:34,339 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2024-11-09 05:50:34,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:50:34,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820934718] [2024-11-09 05:50:34,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820934718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:50:34,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:50:34,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:50:34,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223495500] [2024-11-09 05:50:34,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:50:34,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:50:34,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:50:34,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:50:34,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:50:34,349 INFO L87 Difference]: Start difference. First operand 983 states and 1406 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-09 05:50:35,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:50:35,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:50:35,944 INFO L93 Difference]: Finished difference Result 1590 states and 2246 transitions. [2024-11-09 05:50:35,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:50:35,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 199 [2024-11-09 05:50:35,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:50:35,956 INFO L225 Difference]: With dead ends: 1590 [2024-11-09 05:50:35,956 INFO L226 Difference]: Without dead ends: 1585 [2024-11-09 05:50:35,958 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 05:50:35,959 INFO L432 NwaCegarLoop]: 707 mSDtfsCounter, 428 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:50:35,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1335 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 05:50:35,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2024-11-09 05:50:36,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2024-11-09 05:50:36,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1030 states have (on average 1.340776699029126) internal successors, (1381), 1041 states have internal predecessors, (1381), 431 states have call successors, (431), 124 states have call predecessors, (431), 123 states have return successors, (429), 427 states have call predecessors, (429), 429 states have call successors, (429) [2024-11-09 05:50:36,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2241 transitions. [2024-11-09 05:50:36,077 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2241 transitions. Word has length 199 [2024-11-09 05:50:36,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:50:36,078 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 2241 transitions. [2024-11-09 05:50:36,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-09 05:50:36,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2241 transitions. [2024-11-09 05:50:36,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-09 05:50:36,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:50:36,086 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2024-11-09 05:50:36,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:50:36,086 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:50:36,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:50:36,087 INFO L85 PathProgramCache]: Analyzing trace with hash 320904409, now seen corresponding path program 1 times [2024-11-09 05:50:36,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:50:36,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122755907] [2024-11-09 05:50:36,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:36,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:50:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:50:37,683 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-09 05:50:37,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:50:37,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122755907] [2024-11-09 05:50:37,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122755907] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:50:37,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795113634] [2024-11-09 05:50:37,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:37,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:50:37,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:50:37,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:50:37,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:50:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:50:38,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 05:50:38,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:50:39,308 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2024-11-09 05:50:39,310 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:50:39,931 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2024-11-09 05:50:39,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795113634] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:50:39,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:50:39,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 4] total 9 [2024-11-09 05:50:39,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476373820] [2024-11-09 05:50:39,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:50:39,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:50:39,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:50:39,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:50:39,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:50:39,934 INFO L87 Difference]: Start difference. First operand 1585 states and 2241 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-09 05:50:41,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:50:41,452 INFO L93 Difference]: Finished difference Result 2196 states and 3087 transitions. [2024-11-09 05:50:41,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:50:41,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 215 [2024-11-09 05:50:41,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:50:41,466 INFO L225 Difference]: With dead ends: 2196 [2024-11-09 05:50:41,466 INFO L226 Difference]: Without dead ends: 2191 [2024-11-09 05:50:41,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:50:41,469 INFO L432 NwaCegarLoop]: 740 mSDtfsCounter, 417 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 3230 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:50:41,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 3230 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 05:50:41,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2191 states. [2024-11-09 05:50:41,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2191 to 2191. [2024-11-09 05:50:41,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 1429 states have (on average 1.3435969209237228) internal successors, (1920), 1442 states have internal predecessors, (1920), 582 states have call successors, (582), 180 states have call predecessors, (582), 179 states have return successors, (580), 578 states have call predecessors, (580), 580 states have call successors, (580) [2024-11-09 05:50:41,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 3082 transitions. [2024-11-09 05:50:41,602 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 3082 transitions. Word has length 215 [2024-11-09 05:50:41,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:50:41,603 INFO L471 AbstractCegarLoop]: Abstraction has 2191 states and 3082 transitions. [2024-11-09 05:50:41,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-09 05:50:41,603 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 3082 transitions. [2024-11-09 05:50:41,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-09 05:50:41,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:50:41,612 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2024-11-09 05:50:41,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 05:50:41,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:50:41,817 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:50:41,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:50:41,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1520284674, now seen corresponding path program 1 times [2024-11-09 05:50:41,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:50:41,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630175223] [2024-11-09 05:50:41,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:41,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:50:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:50:42,712 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-09 05:50:42,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:50:42,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630175223] [2024-11-09 05:50:42,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630175223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:50:42,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689123877] [2024-11-09 05:50:42,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:42,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:50:42,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:50:42,714 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:50:42,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:50:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:50:43,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 1851 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 05:50:43,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:50:43,813 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2024-11-09 05:50:43,813 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:50:43,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689123877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:50:43,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:50:43,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2024-11-09 05:50:43,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183554006] [2024-11-09 05:50:43,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:50:43,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:50:43,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:50:43,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:50:43,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:50:43,815 INFO L87 Difference]: Start difference. First operand 2191 states and 3082 transitions. Second operand has 6 states, 4 states have (on average 18.75) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-09 05:50:46,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:50:46,494 INFO L93 Difference]: Finished difference Result 4388 states and 6195 transitions. [2024-11-09 05:50:46,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:50:46,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 18.75) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 226 [2024-11-09 05:50:46,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:50:46,511 INFO L225 Difference]: With dead ends: 4388 [2024-11-09 05:50:46,511 INFO L226 Difference]: Without dead ends: 2197 [2024-11-09 05:50:46,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:50:46,523 INFO L432 NwaCegarLoop]: 663 mSDtfsCounter, 2 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3284 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:50:46,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3284 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 05:50:46,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2024-11-09 05:50:46,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 2197. [2024-11-09 05:50:46,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 1435 states have (on average 1.3421602787456446) internal successors, (1926), 1448 states have internal predecessors, (1926), 582 states have call successors, (582), 180 states have call predecessors, (582), 179 states have return successors, (580), 578 states have call predecessors, (580), 580 states have call successors, (580) [2024-11-09 05:50:46,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3088 transitions. [2024-11-09 05:50:46,666 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3088 transitions. Word has length 226 [2024-11-09 05:50:46,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:50:46,669 INFO L471 AbstractCegarLoop]: Abstraction has 2197 states and 3088 transitions. [2024-11-09 05:50:46,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 18.75) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-09 05:50:46,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3088 transitions. [2024-11-09 05:50:46,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-09 05:50:46,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:50:46,712 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2024-11-09 05:50:46,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:50:46,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:50:46,915 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:50:46,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:50:46,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1712678475, now seen corresponding path program 1 times [2024-11-09 05:50:46,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:50:46,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143207164] [2024-11-09 05:50:46,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:46,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:50:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:50:48,253 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 8 proven. 73 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2024-11-09 05:50:48,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:50:48,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143207164] [2024-11-09 05:50:48,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143207164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:50:48,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414719265] [2024-11-09 05:50:48,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:48,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:50:48,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:50:48,256 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:50:48,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e02431e4-b8f7-4409-9abd-25faf348e774/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:50:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:50:49,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 2016 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 05:50:49,940 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:50:50,008 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 277 proven. 1 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2024-11-09 05:50:50,008 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:50:50,522 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 8 proven. 73 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2024-11-09 05:50:50,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414719265] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:50:50,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1700303370] [2024-11-09 05:50:50,545 INFO L159 IcfgInterpreter]: Started Sifa with 98 locations of interest [2024-11-09 05:50:50,545 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:50:50,549 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:50:50,554 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:50:50,554 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:51:36,794 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_memset with input of size 52 for LOIs [2024-11-09 05:51:36,879 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_init_zalloc with input of size 821 for LOIs [2024-11-09 05:51:46,154 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 840 for LOIs [2024-11-09 05:51:47,453 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 54 for LOIs [2024-11-09 05:51:47,458 INFO L197 IcfgInterpreter]: Interpreting procedure printk with input of size 48 for LOIs [2024-11-09 05:51:47,462 INFO L197 IcfgInterpreter]: Interpreting procedure kzalloc with input of size 98 for LOIs [2024-11-09 05:51:47,583 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 61 for LOIs [2024-11-09 05:51:47,725 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_error with input of size 40 for LOIs [2024-11-09 05:51:47,732 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 104 for LOIs [2024-11-09 05:51:47,788 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:56:12,163 WARN L286 SmtUtils]: Spent 4.36m on a formula simplification. DAG size of input: 823 DAG size of output: 801 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:02:18,325 WARN L286 SmtUtils]: Spent 5.59m on a formula simplification. DAG size of input: 836 DAG size of output: 823 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)