./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-net--atm--lec.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --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 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:00:00,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:00:00,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:00:00,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:00:00,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:00:00,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:00:00,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:00:00,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:00:00,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:00:00,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:00:00,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:00:00,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:00:00,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:00:00,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:00:00,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:00:00,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:00:00,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:00:00,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:00:00,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:00:00,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:00:00,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:00:00,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:00:00,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:00:00,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:00:00,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:00:00,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:00:00,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:00:00,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:00:00,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:00:00,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:00:00,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:00:00,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:00:00,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:00:00,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:00:00,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:00:00,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:00:00,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:00:00,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:00:00,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:00:00,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:00:00,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:00:00,238 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 15:00:00,273 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:00:00,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:00:00,274 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:00:00,275 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:00:00,275 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:00:00,275 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:00:00,275 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:00:00,276 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:00:00,276 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:00:00,276 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:00:00,276 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:00:00,277 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:00:00,277 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:00:00,277 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:00:00,277 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:00:00,278 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:00:00,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:00:00,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:00:00,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:00:00,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:00:00,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:00:00,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:00:00,280 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:00:00,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:00:00,281 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:00:00,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:00:00,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:00:00,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:00:00,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:00:00,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:00:00,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:00:00,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:00:00,283 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:00:00,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:00:00,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:00:00,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:00:00,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:00:00,284 INFO L138 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_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2021-11-19 15:00:00,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:00:00,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:00:00,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:00:00,608 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:00:00,609 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:00:00,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-19 15:00:00,705 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/data/25da641a5/0d681cdb29a7489baa0ab6f03cb41f04/FLAG79764e4d2 [2021-11-19 15:00:01,818 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:00:01,819 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-19 15:00:01,892 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/data/25da641a5/0d681cdb29a7489baa0ab6f03cb41f04/FLAG79764e4d2 [2021-11-19 15:00:02,167 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/data/25da641a5/0d681cdb29a7489baa0ab6f03cb41f04 [2021-11-19 15:00:02,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:00:02,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:00:02,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:00:02,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:00:02,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:00:02,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:00:02" (1/1) ... [2021-11-19 15:00:02,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7deb6fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:02, skipping insertion in model container [2021-11-19 15:00:02,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:00:02" (1/1) ... [2021-11-19 15:00:02,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:00:02,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:00:03,313 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-11-19 15:00:03,314 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-11-19 15:00:03,960 WARN L230 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_008a1f63-c4f0-48e9-a0af-9276c4718285/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-11-19 15:00:04,680 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:04,680 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:04,681 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:04,682 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:04,689 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:04,690 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:04,691 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:04,692 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:04,894 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:04,896 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:04,927 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:04,954 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:04,981 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:04,996 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:04,998 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:04,999 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,058 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,059 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,085 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,137 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,138 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,148 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,156 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,157 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,170 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,183 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,185 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,197 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,210 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,211 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,278 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,293 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,301 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,308 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,326 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,375 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,383 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,386 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,418 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,419 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,459 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,583 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,635 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,671 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,672 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,672 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,681 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,683 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,683 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,690 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,691 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,692 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,693 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,693 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,694 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:00:05,783 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:00:05,832 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 15:00:05,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@d3e5762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:05, skipping insertion in model container [2021-11-19 15:00:05,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:00:05,834 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 15:00:05,840 INFO L158 Benchmark]: Toolchain (without parser) took 3662.02ms. Allocated memory was 102.8MB in the beginning and 138.4MB in the end (delta: 35.7MB). Free memory was 55.3MB in the beginning and 77.1MB in the end (delta: -21.8MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2021-11-19 15:00:05,841 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 102.8MB. Free memory was 55.2MB in the beginning and 55.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:00:05,843 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3657.07ms. Allocated memory was 102.8MB in the beginning and 138.4MB in the end (delta: 35.7MB). Free memory was 55.3MB in the beginning and 77.1MB in the end (delta: -21.8MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2021-11-19 15:00:05,845 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 102.8MB. Free memory was 55.2MB in the beginning and 55.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3657.07ms. Allocated memory was 102.8MB in the beginning and 138.4MB in the end (delta: 35.7MB). Free memory was 55.3MB in the beginning and 77.1MB in the end (delta: -21.8MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6617]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --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 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:00:08,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:00:08,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:00:08,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:00:08,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:00:08,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:00:08,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:00:08,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:00:08,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:00:08,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:00:08,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:00:08,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:00:08,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:00:08,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:00:08,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:00:08,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:00:08,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:00:08,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:00:08,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:00:08,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:00:08,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:00:08,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:00:08,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:00:08,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:00:08,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:00:08,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:00:08,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:00:08,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:00:08,727 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:00:08,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:00:08,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:00:08,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:00:08,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:00:08,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:00:08,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:00:08,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:00:08,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:00:08,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:00:08,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:00:08,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:00:08,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:00:08,756 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 15:00:08,787 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:00:08,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:00:08,789 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:00:08,789 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:00:08,789 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:00:08,790 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:00:08,790 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:00:08,790 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:00:08,791 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:00:08,791 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:00:08,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:00:08,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:00:08,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:00:08,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:00:08,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:00:08,794 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:00:08,794 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 15:00:08,794 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 15:00:08,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:00:08,795 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:00:08,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:00:08,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:00:08,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 15:00:08,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:00:08,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:00:08,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:00:08,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:00:08,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:00:08,798 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 15:00:08,798 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 15:00:08,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:00:08,799 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:00:08,799 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:00:08,799 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2021-11-19 15:00:09,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:00:09,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:00:09,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:00:09,263 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:00:09,265 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:00:09,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-19 15:00:09,353 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/data/37b663b2e/f0330a323386431b92118463a72ec35d/FLAGc0e65a946 [2021-11-19 15:00:10,641 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:00:10,642 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-19 15:00:10,715 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/data/37b663b2e/f0330a323386431b92118463a72ec35d/FLAGc0e65a946 [2021-11-19 15:00:10,874 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/data/37b663b2e/f0330a323386431b92118463a72ec35d [2021-11-19 15:00:10,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:00:10,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:00:10,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:00:10,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:00:10,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:00:10,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:00:10" (1/1) ... [2021-11-19 15:00:10,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48ad12b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:10, skipping insertion in model container [2021-11-19 15:00:10,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:00:10" (1/1) ... [2021-11-19 15:00:10,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:00:11,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:00:12,048 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-11-19 15:00:12,049 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-11-19 15:00:12,829 WARN L230 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_008a1f63-c4f0-48e9-a0af-9276c4718285/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-11-19 15:00:14,540 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:00:14,594 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:00:14,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:00:14,891 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-11-19 15:00:14,891 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-11-19 15:00:14,943 WARN L230 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_008a1f63-c4f0-48e9-a0af-9276c4718285/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-11-19 15:00:15,313 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:00:15,341 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:00:15,577 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-11-19 15:00:15,578 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-11-19 15:00:15,592 WARN L230 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_008a1f63-c4f0-48e9-a0af-9276c4718285/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-11-19 15:00:16,088 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:00:16,331 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:00:16,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:16 WrapperNode [2021-11-19 15:00:16,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:00:16,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:00:16,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:00:16,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:00:16,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:16" (1/1) ... [2021-11-19 15:00:16,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:16" (1/1) ... [2021-11-19 15:00:16,728 INFO L137 Inliner]: procedures = 300, calls = 2896, calls flagged for inlining = 145, calls inlined = 128, statements flattened = 5369 [2021-11-19 15:00:16,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:00:16,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:00:16,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:00:16,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:00:16,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:16" (1/1) ... [2021-11-19 15:00:16,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:16" (1/1) ... [2021-11-19 15:00:16,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:16" (1/1) ... [2021-11-19 15:00:16,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:16" (1/1) ... [2021-11-19 15:00:17,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:16" (1/1) ... [2021-11-19 15:00:17,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:16" (1/1) ... [2021-11-19 15:00:17,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:16" (1/1) ... [2021-11-19 15:00:17,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:00:17,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:00:17,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:00:17,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:00:17,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:16" (1/1) ... [2021-11-19 15:00:17,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:00:17,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:00:17,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:00:17,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:00:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 15:00:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 15:00:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-19 15:00:17,367 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-19 15:00:17,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 15:00:17,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 15:00:17,367 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-19 15:00:17,368 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-19 15:00:17,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 15:00:17,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 15:00:17,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 15:00:17,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 15:00:17,369 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 15:00:17,369 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 15:00:17,369 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2021-11-19 15:00:17,370 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2021-11-19 15:00:17,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-19 15:00:17,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-19 15:00:17,370 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2021-11-19 15:00:17,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2021-11-19 15:00:17,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 15:00:17,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 15:00:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-19 15:00:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_stop [2021-11-19 15:00:17,372 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_stop [2021-11-19 15:00:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-19 15:00:17,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-19 15:00:17,373 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2021-11-19 15:00:17,375 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2021-11-19 15:00:17,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 15:00:17,376 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 15:00:17,376 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 15:00:17,377 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 15:00:17,377 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 15:00:17,377 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 15:00:17,377 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-19 15:00:17,378 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-19 15:00:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_find [2021-11-19 15:00:17,378 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_find [2021-11-19 15:00:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 15:00:17,378 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 15:00:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2021-11-19 15:00:17,379 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2021-11-19 15:00:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-11-19 15:00:17,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-11-19 15:00:17,381 INFO L130 BoogieDeclarations]: Found specification of procedure atm_may_send [2021-11-19 15:00:17,382 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_may_send [2021-11-19 15:00:17,382 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_open [2021-11-19 15:00:17,382 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_open [2021-11-19 15:00:17,382 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 15:00:17,382 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 15:00:17,383 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-19 15:00:17,383 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-19 15:00:17,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:00:17,384 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 15:00:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tx_timeout [2021-11-19 15:00:17,385 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tx_timeout [2021-11-19 15:00:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2021-11-19 15:00:17,385 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2021-11-19 15:00:17,386 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2021-11-19 15:00:17,386 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2021-11-19 15:00:17,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:00:17,387 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-19 15:00:17,387 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-19 15:00:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2021-11-19 15:00:17,388 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2021-11-19 15:00:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-19 15:00:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-19 15:00:17,389 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-19 15:00:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 15:00:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 15:00:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 15:00:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:00:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 15:00:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-11-19 15:00:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-11-19 15:00:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 15:00:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:00:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 15:00:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-19 15:00:17,392 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-19 15:00:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 15:00:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 15:00:17,393 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 15:00:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-19 15:00:17,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-19 15:00:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tbl_walk [2021-11-19 15:00:17,395 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tbl_walk [2021-11-19 15:00:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 15:00:17,395 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 15:00:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 15:00:17,395 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 15:00:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 15:00:17,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 15:00:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2021-11-19 15:00:17,396 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2021-11-19 15:00:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-19 15:00:17,397 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-19 15:00:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2021-11-19 15:00:17,397 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2021-11-19 15:00:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2021-11-19 15:00:17,398 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2021-11-19 15:00:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 15:00:17,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 15:00:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2021-11-19 15:00:17,399 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2021-11-19 15:00:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure lec_get_idx [2021-11-19 15:00:17,403 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_get_idx [2021-11-19 15:00:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_add [2021-11-19 15:00:17,404 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_add [2021-11-19 15:00:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 15:00:17,406 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 15:00:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2021-11-19 15:00:17,407 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2021-11-19 15:00:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-19 15:00:17,407 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-19 15:00:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 15:00:17,413 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 15:00:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure lec_change_mtu [2021-11-19 15:00:17,414 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_change_mtu [2021-11-19 15:00:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2021-11-19 15:00:17,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2021-11-19 15:00:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 15:00:17,415 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 15:00:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 15:00:17,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 15:00:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-11-19 15:00:17,416 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-11-19 15:00:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 15:00:17,416 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 15:00:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_show [2021-11-19 15:00:17,416 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_show [2021-11-19 15:00:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_release_async [2021-11-19 15:00:17,417 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_release_async [2021-11-19 15:00:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2021-11-19 15:00:17,417 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2021-11-19 15:00:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release_private [2021-11-19 15:00:17,418 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release_private [2021-11-19 15:00:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 15:00:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 15:00:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 15:00:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 15:00:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 15:00:17,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 15:00:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 15:00:17,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 15:00:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure lec_set_multicast_list [2021-11-19 15:00:17,420 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_set_multicast_list [2021-11-19 15:00:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_put [2021-11-19 15:00:17,420 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_put [2021-11-19 15:00:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_hold [2021-11-19 15:00:17,421 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_hold [2021-11-19 15:00:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:00:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-11-19 15:00:17,421 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-11-19 15:00:17,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:00:17,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:00:17,423 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 15:00:17,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 15:00:17,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 15:00:17,423 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-19 15:00:17,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-19 15:00:17,424 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 15:00:17,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 15:00:17,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 15:00:17,424 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2021-11-19 15:00:17,425 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2021-11-19 15:00:17,425 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-19 15:00:17,425 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-19 15:00:17,425 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2021-11-19 15:00:17,425 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2021-11-19 15:00:17,426 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_close [2021-11-19 15:00:17,426 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_close [2021-11-19 15:00:17,426 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-19 15:00:17,426 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-19 15:00:17,426 INFO L130 BoogieDeclarations]: Found specification of procedure make_entry [2021-11-19 15:00:17,426 INFO L138 BoogieDeclarations]: Found implementation of procedure make_entry [2021-11-19 15:00:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 15:00:17,427 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 15:00:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_remove [2021-11-19 15:00:17,429 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_remove [2021-11-19 15:00:17,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 15:00:17,429 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2021-11-19 15:00:17,430 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2021-11-19 15:00:17,430 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_clear_vccs [2021-11-19 15:00:17,430 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_clear_vccs [2021-11-19 15:00:17,430 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-11-19 15:00:17,430 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-11-19 15:00:17,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:00:17,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:00:18,546 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:00:18,551 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:00:18,957 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 15:00:37,097 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 15:00:46,025 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0bv64 != ~bvadd64(lec_addr_delete_~____ptr___0~4#1.base, lec_addr_delete_~____ptr___0~4#1.offset));lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset := 0bv64, 0bv64;lec_addr_delete_~entry~10#1.base, lec_addr_delete_~entry~10#1.offset := lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset; [2021-11-19 15:00:46,025 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0bv64 != ~bvadd64(lec_addr_delete_~____ptr___0~4#1.base, lec_addr_delete_~____ptr___0~4#1.offset);lec_addr_delete_~__mptr___0~5#1.base, lec_addr_delete_~__mptr___0~5#1.offset := lec_addr_delete_~____ptr___0~4#1.base, lec_addr_delete_~____ptr___0~4#1.offset;lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset := lec_addr_delete_~__mptr___0~5#1.base, lec_addr_delete_~__mptr___0~5#1.offset; [2021-11-19 15:01:28,010 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:01:28,033 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:01:28,034 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 15:01:28,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:01:28 BoogieIcfgContainer [2021-11-19 15:01:28,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:01:28,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:01:28,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:01:28,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:01:28,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:00:10" (1/3) ... [2021-11-19 15:01:28,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8d5d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:01:28, skipping insertion in model container [2021-11-19 15:01:28,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:16" (2/3) ... [2021-11-19 15:01:28,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8d5d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:01:28, skipping insertion in model container [2021-11-19 15:01:28,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:01:28" (3/3) ... [2021-11-19 15:01:28,050 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-19 15:01:28,057 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:01:28,057 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 15:01:28,133 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:01:28,140 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 15:01:28,141 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 15:01:28,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 1666 states, 1226 states have (on average 1.3890701468189233) internal successors, (1703), 1266 states have internal predecessors, (1703), 361 states have call successors, (361), 78 states have call predecessors, (361), 77 states have return successors, (352), 342 states have call predecessors, (352), 352 states have call successors, (352) [2021-11-19 15:01:28,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-19 15:01:28,226 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:01:28,227 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:01:28,228 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:01:28,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:01:28,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1135839636, now seen corresponding path program 1 times [2021-11-19 15:01:28,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:01:28,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506687323] [2021-11-19 15:01:28,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:01:28,257 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:01:28,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:01:28,261 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:01:28,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:01:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:01:30,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 2286 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:01:30,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:01:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-19 15:01:30,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:01:31,527 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-19 15:01:31,528 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:01:31,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506687323] [2021-11-19 15:01:31,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506687323] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:01:31,530 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:01:31,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 15:01:31,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28060711] [2021-11-19 15:01:31,533 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:01:31,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:01:31,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:01:31,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:01:31,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:01:31,600 INFO L87 Difference]: Start difference. First operand has 1666 states, 1226 states have (on average 1.3890701468189233) internal successors, (1703), 1266 states have internal predecessors, (1703), 361 states have call successors, (361), 78 states have call predecessors, (361), 77 states have return successors, (352), 342 states have call predecessors, (352), 352 states have call successors, (352) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 15:01:32,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:01:32,693 INFO L93 Difference]: Finished difference Result 4898 states and 7246 transitions. [2021-11-19 15:01:32,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:01:32,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 86 [2021-11-19 15:01:32,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:01:32,761 INFO L225 Difference]: With dead ends: 4898 [2021-11-19 15:01:32,761 INFO L226 Difference]: Without dead ends: 3182 [2021-11-19 15:01:32,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:01:32,796 INFO L933 BasicCegarLoop]: 2730 mSDtfsCounter, 2298 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 5099 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:01:32,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2298 Valid, 5099 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 15:01:32,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3182 states. [2021-11-19 15:01:33,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3182 to 3179. [2021-11-19 15:01:33,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3179 states, 2358 states have (on average 1.3854961832061068) internal successors, (3267), 2416 states have internal predecessors, (3267), 669 states have call successors, (669), 152 states have call predecessors, (669), 151 states have return successors, (668), 648 states have call predecessors, (668), 668 states have call successors, (668) [2021-11-19 15:01:33,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3179 states to 3179 states and 4604 transitions. [2021-11-19 15:01:33,242 INFO L78 Accepts]: Start accepts. Automaton has 3179 states and 4604 transitions. Word has length 86 [2021-11-19 15:01:33,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:01:33,243 INFO L470 AbstractCegarLoop]: Abstraction has 3179 states and 4604 transitions. [2021-11-19 15:01:33,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 15:01:33,244 INFO L276 IsEmpty]: Start isEmpty. Operand 3179 states and 4604 transitions. [2021-11-19 15:01:33,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-19 15:01:33,258 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:01:33,258 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:01:33,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:01:33,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:01:33,480 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:01:33,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:01:33,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1224754483, now seen corresponding path program 1 times [2021-11-19 15:01:33,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:01:33,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113042773] [2021-11-19 15:01:33,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:01:33,487 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:01:33,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:01:33,492 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:01:33,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:01:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:01:35,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 2403 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:01:35,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:01:36,134 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-19 15:01:36,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:01:36,846 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-19 15:01:36,847 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:01:36,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113042773] [2021-11-19 15:01:36,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2113042773] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:01:36,847 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:01:36,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:01:36,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606849487] [2021-11-19 15:01:36,848 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:01:36,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:01:36,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:01:36,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:01:36,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:01:36,851 INFO L87 Difference]: Start difference. First operand 3179 states and 4604 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 15:01:48,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:01:48,716 INFO L93 Difference]: Finished difference Result 12630 states and 18825 transitions. [2021-11-19 15:01:48,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:01:48,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2021-11-19 15:01:48,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:01:48,819 INFO L225 Difference]: With dead ends: 12630 [2021-11-19 15:01:48,820 INFO L226 Difference]: Without dead ends: 9475 [2021-11-19 15:01:48,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:01:48,856 INFO L933 BasicCegarLoop]: 3152 mSDtfsCounter, 4759 mSDsluCounter, 6353 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4759 SdHoareTripleChecker+Valid, 9505 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:01:48,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4759 Valid, 9505 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2021-11-19 15:01:48,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9475 states. [2021-11-19 15:01:49,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9475 to 9469. [2021-11-19 15:01:49,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9469 states, 7036 states have (on average 1.3855884025014213) internal successors, (9749), 7204 states have internal predecessors, (9749), 1981 states have call successors, (1981), 454 states have call predecessors, (1981), 451 states have return successors, (2292), 1920 states have call predecessors, (2292), 1980 states have call successors, (2292) [2021-11-19 15:01:49,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9469 states to 9469 states and 14022 transitions. [2021-11-19 15:01:49,677 INFO L78 Accepts]: Start accepts. Automaton has 9469 states and 14022 transitions. Word has length 96 [2021-11-19 15:01:49,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:01:49,681 INFO L470 AbstractCegarLoop]: Abstraction has 9469 states and 14022 transitions. [2021-11-19 15:01:49,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 15:01:49,682 INFO L276 IsEmpty]: Start isEmpty. Operand 9469 states and 14022 transitions. [2021-11-19 15:01:49,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-19 15:01:49,689 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:01:49,689 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:01:49,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:01:49,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:01:49,904 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:01:49,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:01:49,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1430654581, now seen corresponding path program 1 times [2021-11-19 15:01:49,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:01:49,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373650548] [2021-11-19 15:01:49,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:01:49,910 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:01:49,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:01:49,913 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:01:49,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:01:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:01:51,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 2409 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:01:51,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:01:52,360 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-19 15:01:52,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:01:53,171 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-19 15:01:53,171 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:01:53,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373650548] [2021-11-19 15:01:53,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373650548] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:01:53,172 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:01:53,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:01:53,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203859562] [2021-11-19 15:01:53,173 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:01:53,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:01:53,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:01:53,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:01:53,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:01:53,175 INFO L87 Difference]: Start difference. First operand 9469 states and 14022 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 15:02:05,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:02:05,493 INFO L93 Difference]: Finished difference Result 37792 states and 59057 transitions. [2021-11-19 15:02:05,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:02:05,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2021-11-19 15:02:05,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:02:05,775 INFO L225 Difference]: With dead ends: 37792 [2021-11-19 15:02:05,776 INFO L226 Difference]: Without dead ends: 28347 [2021-11-19 15:02:05,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:02:05,881 INFO L933 BasicCegarLoop]: 3134 mSDtfsCounter, 6414 mSDsluCounter, 4052 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 751 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6414 SdHoareTripleChecker+Valid, 7186 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 751 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:02:05,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6414 Valid, 7186 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [751 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2021-11-19 15:02:05,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28347 states. [2021-11-19 15:02:07,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28347 to 28341. [2021-11-19 15:02:07,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28341 states, 21078 states have (on average 1.3850934623778348) internal successors, (29195), 21570 states have internal predecessors, (29195), 5909 states have call successors, (5909), 1360 states have call predecessors, (5909), 1353 states have return successors, (8624), 5740 states have call predecessors, (8624), 5908 states have call successors, (8624) [2021-11-19 15:02:08,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28341 states to 28341 states and 43728 transitions. [2021-11-19 15:02:08,091 INFO L78 Accepts]: Start accepts. Automaton has 28341 states and 43728 transitions. Word has length 99 [2021-11-19 15:02:08,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:02:08,094 INFO L470 AbstractCegarLoop]: Abstraction has 28341 states and 43728 transitions. [2021-11-19 15:02:08,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 15:02:08,095 INFO L276 IsEmpty]: Start isEmpty. Operand 28341 states and 43728 transitions. [2021-11-19 15:02:08,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-19 15:02:08,106 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:02:08,106 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:02:08,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 15:02:08,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:02:08,332 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:02:08,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:02:08,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1398929581, now seen corresponding path program 1 times [2021-11-19 15:02:08,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:02:08,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1986524520] [2021-11-19 15:02:08,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:02:08,337 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:02:08,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:02:08,341 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:02:08,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 15:02:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:02:09,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 2405 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:02:09,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:02:10,556 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-19 15:02:10,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:02:11,311 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-19 15:02:11,311 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:02:11,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1986524520] [2021-11-19 15:02:11,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1986524520] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:02:11,312 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:02:11,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:02:11,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353669110] [2021-11-19 15:02:11,312 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:02:11,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:02:11,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:02:11,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:02:11,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:02:11,314 INFO L87 Difference]: Start difference. First operand 28341 states and 43728 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 15:02:24,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:02:24,786 INFO L93 Difference]: Finished difference Result 113220 states and 194381 transitions. [2021-11-19 15:02:24,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:02:24,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 97 [2021-11-19 15:02:24,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:02:25,923 INFO L225 Difference]: With dead ends: 113220 [2021-11-19 15:02:25,923 INFO L226 Difference]: Without dead ends: 84903 [2021-11-19 15:02:26,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:02:26,170 INFO L933 BasicCegarLoop]: 3126 mSDtfsCounter, 6412 mSDsluCounter, 4052 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 757 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6412 SdHoareTripleChecker+Valid, 7178 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 757 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-11-19 15:02:26,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6412 Valid, 7178 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [757 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2021-11-19 15:02:26,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84903 states. [2021-11-19 15:02:31,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84903 to 84897. [2021-11-19 15:02:31,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84897 states, 63174 states have (on average 1.3840978883717985) internal successors, (87439), 64608 states have internal predecessors, (87439), 17669 states have call successors, (17669), 4078 states have call predecessors, (17669), 4053 states have return successors, (36968), 17188 states have call predecessors, (36968), 17668 states have call successors, (36968) [2021-11-19 15:02:32,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84897 states to 84897 states and 142076 transitions. [2021-11-19 15:02:32,936 INFO L78 Accepts]: Start accepts. Automaton has 84897 states and 142076 transitions. Word has length 97 [2021-11-19 15:02:32,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:02:32,937 INFO L470 AbstractCegarLoop]: Abstraction has 84897 states and 142076 transitions. [2021-11-19 15:02:32,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 15:02:32,938 INFO L276 IsEmpty]: Start isEmpty. Operand 84897 states and 142076 transitions. [2021-11-19 15:02:32,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-19 15:02:32,942 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:02:32,942 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:02:32,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 15:02:33,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:02:33,166 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:02:33,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:02:33,167 INFO L85 PathProgramCache]: Analyzing trace with hash 690704491, now seen corresponding path program 1 times [2021-11-19 15:02:33,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:02:33,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202107395] [2021-11-19 15:02:33,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:02:33,172 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:02:33,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:02:33,173 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:02:33,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008a1f63-c4f0-48e9-a0af-9276c4718285/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:02:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:02:34,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 2407 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:02:34,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:02:35,336 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-19 15:02:35,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:02:36,113 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-19 15:02:36,114 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:02:36,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202107395] [2021-11-19 15:02:36,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1202107395] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:02:36,115 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:02:36,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:02:36,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350167881] [2021-11-19 15:02:36,115 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:02:36,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:02:36,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:02:36,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:02:36,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:02:36,118 INFO L87 Difference]: Start difference. First operand 84897 states and 142076 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 15:03:00,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:03:00,515 INFO L93 Difference]: Finished difference Result 339048 states and 695641 transitions. [2021-11-19 15:03:00,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:03:00,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2021-11-19 15:03:00,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:03:04,456 INFO L225 Difference]: With dead ends: 339048 [2021-11-19 15:03:04,457 INFO L226 Difference]: Without dead ends: 254175 [2021-11-19 15:03:06,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:03:06,172 INFO L933 BasicCegarLoop]: 3128 mSDtfsCounter, 6413 mSDsluCounter, 4052 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6413 SdHoareTripleChecker+Valid, 7180 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 753 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:03:06,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6413 Valid, 7180 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [753 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2021-11-19 15:03:06,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254175 states.