./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9de0fe3-8840-4b82-b449-91fea00e25d5/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9de0fe3-8840-4b82-b449-91fea00e25d5/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9de0fe3-8840-4b82-b449-91fea00e25d5/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9de0fe3-8840-4b82-b449-91fea00e25d5/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.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_d9de0fe3-8840-4b82-b449-91fea00e25d5/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9de0fe3-8840-4b82-b449-91fea00e25d5/bin/uautomizer-TMbwUNV5ro --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:33:32,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:33:32,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:33:32,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:33:32,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:33:32,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:33:32,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:33:32,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:33:32,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:33:32,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:33:32,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:33:32,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:33:32,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:33:32,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:33:32,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:33:32,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:33:32,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:33:32,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:33:32,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:33:32,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:33:32,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:33:32,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:33:32,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:33:32,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:33:32,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:33:32,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:33:32,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:33:32,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:33:32,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:33:32,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:33:32,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:33:32,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:33:32,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:33:32,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:33:32,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:33:32,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:33:32,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:33:32,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:33:32,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:33:32,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:33:32,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:33:32,421 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9de0fe3-8840-4b82-b449-91fea00e25d5/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:33:32,455 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:33:32,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:33:32,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:33:32,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:33:32,457 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:33:32,458 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:33:32,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:33:32,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:33:32,459 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:33:32,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:33:32,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:33:32,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:33:32,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:33:32,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:33:32,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:33:32,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:33:32,462 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:33:32,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:33:32,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:33:32,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:33:32,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:33:32,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:33:32,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:33:32,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:33:32,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:33:32,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:33:32,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:33:32,464 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:33:32,465 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:33:32,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:33:32,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_d9de0fe3-8840-4b82-b449-91fea00e25d5/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9de0fe3-8840-4b82-b449-91fea00e25d5/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2022-11-18 20:33:32,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:33:32,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:33:32,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:33:32,774 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:33:32,775 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:33:32,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9de0fe3-8840-4b82-b449-91fea00e25d5/bin/uautomizer-TMbwUNV5ro/../../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 [2022-11-18 20:33:32,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9de0fe3-8840-4b82-b449-91fea00e25d5/bin/uautomizer-TMbwUNV5ro/data/aa4c84765/c86301cbcaad4d3ea30852d425b88c83/FLAGff68eaafc [2022-11-18 20:33:33,727 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:33:33,728 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9de0fe3-8840-4b82-b449-91fea00e25d5/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 [2022-11-18 20:33:33,781 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9de0fe3-8840-4b82-b449-91fea00e25d5/bin/uautomizer-TMbwUNV5ro/data/aa4c84765/c86301cbcaad4d3ea30852d425b88c83/FLAGff68eaafc [2022-11-18 20:33:34,116 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9de0fe3-8840-4b82-b449-91fea00e25d5/bin/uautomizer-TMbwUNV5ro/data/aa4c84765/c86301cbcaad4d3ea30852d425b88c83 [2022-11-18 20:33:34,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:33:34,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:33:34,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:33:34,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:33:34,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:33:34,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:33:34" (1/1) ... [2022-11-18 20:33:34,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@457d9a04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:34, skipping insertion in model container [2022-11-18 20:33:34,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:33:34" (1/1) ... [2022-11-18 20:33:34,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:33:34,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:33:34,957 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2022-11-18 20:33:34,957 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2022-11-18 20:33:35,464 WARN L234 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_d9de0fe3-8840-4b82-b449-91fea00e25d5/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] [2022-11-18 20:33:36,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:33:36,852 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:33:36,998 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2022-11-18 20:33:36,999 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2022-11-18 20:33:37,018 WARN L234 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_d9de0fe3-8840-4b82-b449-91fea00e25d5/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] [2022-11-18 20:33:37,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:33:37,592 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:33:37,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37 WrapperNode [2022-11-18 20:33:37,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:33:37,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:33:37,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:33:37,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:33:37,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,914 INFO L138 Inliner]: procedures = 286, calls = 2912, calls flagged for inlining = 145, calls inlined = 128, statements flattened = 5531 [2022-11-18 20:33:37,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:33:37,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:33:37,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:33:37,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:33:37,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:38,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:38,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:38,151 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:38,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:38,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:33:38,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:33:38,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:33:38,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:33:38,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:38,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:33:38,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9de0fe3-8840-4b82-b449-91fea00e25d5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:38,320 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9de0fe3-8840-4b82-b449-91fea00e25d5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:38,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9de0fe3-8840-4b82-b449-91fea00e25d5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:33:38,367 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-18 20:33:38,367 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-18 20:33:38,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 20:33:38,368 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-18 20:33:38,368 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-18 20:33:38,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 20:33:38,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 20:33:38,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 20:33:38,368 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-18 20:33:38,369 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-18 20:33:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2022-11-18 20:33:38,369 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2022-11-18 20:33:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-18 20:33:38,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-18 20:33:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2022-11-18 20:33:38,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2022-11-18 20:33:38,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 20:33:38,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 20:33:38,370 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-18 20:33:38,370 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_stop [2022-11-18 20:33:38,370 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_stop [2022-11-18 20:33:38,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 20:33:38,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 20:33:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2022-11-18 20:33:38,371 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2022-11-18 20:33:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 20:33:38,371 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 20:33:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 20:33:38,372 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 20:33:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-18 20:33:38,372 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-18 20:33:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-18 20:33:38,372 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-18 20:33:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_find [2022-11-18 20:33:38,373 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_find [2022-11-18 20:33:38,373 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 20:33:38,373 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 20:33:38,373 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2022-11-18 20:33:38,373 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2022-11-18 20:33:38,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-11-18 20:33:38,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-11-18 20:33:38,374 INFO L130 BoogieDeclarations]: Found specification of procedure atm_may_send [2022-11-18 20:33:38,374 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_may_send [2022-11-18 20:33:38,374 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_open [2022-11-18 20:33:38,374 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_open [2022-11-18 20:33:38,374 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-18 20:33:38,375 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-18 20:33:38,375 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-18 20:33:38,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-18 20:33:38,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:33:38,375 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-18 20:33:38,375 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tx_timeout [2022-11-18 20:33:38,376 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tx_timeout [2022-11-18 20:33:38,376 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2022-11-18 20:33:38,376 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2022-11-18 20:33:38,376 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2022-11-18 20:33:38,376 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2022-11-18 20:33:38,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:33:38,377 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-18 20:33:38,377 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-18 20:33:38,377 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2022-11-18 20:33:38,377 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2022-11-18 20:33:38,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-18 20:33:38,377 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 20:33:38,378 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 20:33:38,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:33:38,378 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-18 20:33:38,378 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-18 20:33:38,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:33:38,378 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-18 20:33:38,379 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-18 20:33:38,379 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-18 20:33:38,379 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-18 20:33:38,379 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-18 20:33:38,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-18 20:33:38,379 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tbl_walk [2022-11-18 20:33:38,379 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tbl_walk [2022-11-18 20:33:38,380 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-18 20:33:38,380 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-18 20:33:38,380 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-18 20:33:38,380 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-18 20:33:38,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 20:33:38,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-18 20:33:38,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-18 20:33:38,381 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2022-11-18 20:33:38,381 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2022-11-18 20:33:38,381 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-18 20:33:38,381 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-18 20:33:38,381 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2022-11-18 20:33:38,382 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2022-11-18 20:33:38,382 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2022-11-18 20:33:38,382 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2022-11-18 20:33:38,382 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 20:33:38,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 20:33:38,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 20:33:38,382 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2022-11-18 20:33:38,383 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2022-11-18 20:33:38,383 INFO L130 BoogieDeclarations]: Found specification of procedure lec_get_idx [2022-11-18 20:33:38,383 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_get_idx [2022-11-18 20:33:38,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:33:38,383 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_add [2022-11-18 20:33:38,383 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_add [2022-11-18 20:33:38,384 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-18 20:33:38,384 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-18 20:33:38,384 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2022-11-18 20:33:38,384 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2022-11-18 20:33:38,384 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-18 20:33:38,384 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-18 20:33:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 20:33:38,385 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 20:33:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure lec_change_mtu [2022-11-18 20:33:38,385 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_change_mtu [2022-11-18 20:33:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-11-18 20:33:38,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-11-18 20:33:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-18 20:33:38,386 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-18 20:33:38,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-18 20:33:38,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-18 20:33:38,386 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-11-18 20:33:38,386 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-11-18 20:33:38,387 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 20:33:38,387 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 20:33:38,387 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_show [2022-11-18 20:33:38,387 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_show [2022-11-18 20:33:38,387 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_release_async [2022-11-18 20:33:38,387 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_release_async [2022-11-18 20:33:38,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:33:38,388 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2022-11-18 20:33:38,388 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2022-11-18 20:33:38,388 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release_private [2022-11-18 20:33:38,388 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release_private [2022-11-18 20:33:38,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 20:33:38,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 20:33:38,389 INFO L130 BoogieDeclarations]: Found specification of procedure lec_set_multicast_list [2022-11-18 20:33:38,389 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_set_multicast_list [2022-11-18 20:33:38,389 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_put [2022-11-18 20:33:38,389 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_put [2022-11-18 20:33:38,389 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_hold [2022-11-18 20:33:38,389 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_hold [2022-11-18 20:33:38,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:33:38,390 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-11-18 20:33:38,390 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-11-18 20:33:38,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:33:38,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:33:38,390 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-18 20:33:38,390 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-18 20:33:38,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-18 20:33:38,391 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 20:33:38,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 20:33:38,391 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2022-11-18 20:33:38,391 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2022-11-18 20:33:38,391 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-18 20:33:38,391 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-18 20:33:38,392 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2022-11-18 20:33:38,392 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2022-11-18 20:33:38,392 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_close [2022-11-18 20:33:38,392 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_close [2022-11-18 20:33:38,392 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-18 20:33:38,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-18 20:33:38,392 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-18 20:33:38,393 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-18 20:33:38,393 INFO L130 BoogieDeclarations]: Found specification of procedure make_entry [2022-11-18 20:33:38,393 INFO L138 BoogieDeclarations]: Found implementation of procedure make_entry [2022-11-18 20:33:38,393 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-18 20:33:38,393 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-18 20:33:38,393 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_remove [2022-11-18 20:33:38,393 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_remove [2022-11-18 20:33:38,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:33:38,394 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2022-11-18 20:33:38,394 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2022-11-18 20:33:38,394 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_clear_vccs [2022-11-18 20:33:38,394 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_clear_vccs [2022-11-18 20:33:38,394 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2022-11-18 20:33:38,395 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2022-11-18 20:33:38,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:33:38,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:33:39,152 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:33:39,155 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:33:39,377 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 20:33:47,714 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-18 20:33:50,574 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0 != (lec_addr_delete_~____ptr___0~4#1.base + lec_addr_delete_~____ptr___0~4#1.offset) % 18446744073709551616);lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset := 0, 0;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; [2022-11-18 20:33:50,575 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0 != (lec_addr_delete_~____ptr___0~4#1.base + lec_addr_delete_~____ptr___0~4#1.offset) % 18446744073709551616;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; [2022-11-18 20:33:57,181 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:33:57,206 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:33:57,207 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:33:57,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:33:57 BoogieIcfgContainer [2022-11-18 20:33:57,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:33:57,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:33:57,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:33:57,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:33:57,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:33:34" (1/3) ... [2022-11-18 20:33:57,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1508ae4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:33:57, skipping insertion in model container [2022-11-18 20:33:57,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (2/3) ... [2022-11-18 20:33:57,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1508ae4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:33:57, skipping insertion in model container [2022-11-18 20:33:57,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:33:57" (3/3) ... [2022-11-18 20:33:57,221 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2022-11-18 20:33:57,243 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:33:57,243 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:33:57,371 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:33:57,382 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@54bc74fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:33:57,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:33:57,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 1665 states, 1225 states have (on average 1.3893877551020408) internal successors, (1702), 1265 states have internal predecessors, (1702), 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) [2022-11-18 20:33:57,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-18 20:33:57,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:33:57,427 INFO L195 NwaCegarLoop]: 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] [2022-11-18 20:33:57,428 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:33:57,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:57,436 INFO L85 PathProgramCache]: Analyzing trace with hash 797257804, now seen corresponding path program 1 times [2022-11-18 20:33:57,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:57,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580526301] [2022-11-18 20:33:57,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:57,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:58,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:33:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:58,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:33:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:58,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 20:33:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:58,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:33:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:58,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 20:33:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:58,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:33:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:58,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:33:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:58,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 20:33:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:58,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:33:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:58,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 20:33:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:58,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 20:33:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:58,519 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-18 20:33:58,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:58,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580526301] [2022-11-18 20:33:58,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580526301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:58,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:58,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:33:58,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059770722] [2022-11-18 20:33:58,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:58,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:33:58,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:58,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:33:58,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:33:58,619 INFO L87 Difference]: Start difference. First operand has 1665 states, 1225 states have (on average 1.3893877551020408) internal successors, (1702), 1265 states have internal predecessors, (1702), 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 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:34:01,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:34:13,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:34:13,683 INFO L93 Difference]: Finished difference Result 4984 states and 7472 transitions. [2022-11-18 20:34:13,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:34:13,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 86 [2022-11-18 20:34:13,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:34:13,747 INFO L225 Difference]: With dead ends: 4984 [2022-11-18 20:34:13,747 INFO L226 Difference]: Without dead ends: 3269 [2022-11-18 20:34:13,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:34:13,771 INFO L413 NwaCegarLoop]: 2357 mSDtfsCounter, 2769 mSDsluCounter, 2996 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 757 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3024 SdHoareTripleChecker+Valid, 5353 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 757 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:34:13,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3024 Valid, 5353 Invalid, 2641 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [757 Valid, 1883 Invalid, 1 Unknown, 0 Unchecked, 14.4s Time] [2022-11-18 20:34:13,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3269 states. [2022-11-18 20:34:14,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3269 to 3158. [2022-11-18 20:34:14,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3158 states, 2338 states have (on average 1.3862275449101797) internal successors, (3241), 2396 states have internal predecessors, (3241), 669 states have call successors, (669), 151 states have call predecessors, (669), 150 states have return successors, (668), 648 states have call predecessors, (668), 668 states have call successors, (668) [2022-11-18 20:34:14,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3158 states to 3158 states and 4578 transitions. [2022-11-18 20:34:14,085 INFO L78 Accepts]: Start accepts. Automaton has 3158 states and 4578 transitions. Word has length 86 [2022-11-18 20:34:14,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:34:14,088 INFO L495 AbstractCegarLoop]: Abstraction has 3158 states and 4578 transitions. [2022-11-18 20:34:14,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:34:14,091 INFO L276 IsEmpty]: Start isEmpty. Operand 3158 states and 4578 transitions. [2022-11-18 20:34:14,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-18 20:34:14,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:34:14,102 INFO L195 NwaCegarLoop]: 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] [2022-11-18 20:34:14,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:34:14,103 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:34:14,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:34:14,104 INFO L85 PathProgramCache]: Analyzing trace with hash 423118170, now seen corresponding path program 1 times [2022-11-18 20:34:14,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:34:14,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934900483] [2022-11-18 20:34:14,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:14,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:34:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:15,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:34:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:15,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:34:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:15,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 20:34:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:15,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:34:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:15,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 20:34:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:15,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:34:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:15,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:34:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:15,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 20:34:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:15,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:34:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:15,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 20:34:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:15,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 20:34:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:15,188 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-18 20:34:15,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:34:15,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934900483] [2022-11-18 20:34:15,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934900483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:34:15,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:34:15,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:34:15,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273967160] [2022-11-18 20:34:15,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:34:15,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:34:15,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:34:15,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:34:15,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:34:15,192 INFO L87 Difference]: Start difference. First operand 3158 states and 4578 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:34:17,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:34:25,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:34:47,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:34:47,044 INFO L93 Difference]: Finished difference Result 16050 states and 24359 transitions. [2022-11-18 20:34:47,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:34:47,045 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2022-11-18 20:34:47,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:34:47,127 INFO L225 Difference]: With dead ends: 16050 [2022-11-18 20:34:47,128 INFO L226 Difference]: Without dead ends: 12916 [2022-11-18 20:34:47,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:34:47,151 INFO L413 NwaCegarLoop]: 3215 mSDtfsCounter, 8660 mSDsluCounter, 7757 mSDsCounter, 0 mSdLazyCounter, 5312 mSolverCounterSat, 1759 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9355 SdHoareTripleChecker+Valid, 10972 SdHoareTripleChecker+Invalid, 7073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1759 IncrementalHoareTripleChecker+Valid, 5312 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:34:47,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9355 Valid, 10972 Invalid, 7073 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1759 Valid, 5312 Invalid, 2 Unknown, 0 Unchecked, 30.7s Time] [2022-11-18 20:34:47,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12916 states. [2022-11-18 20:34:47,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12916 to 12510. [2022-11-18 20:34:47,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12510 states, 9263 states have (on average 1.3858361222066284) internal successors, (12837), 9497 states have internal predecessors, (12837), 2637 states have call successors, (2637), 598 states have call predecessors, (2637), 609 states have return successors, (3090), 2566 states have call predecessors, (3090), 2636 states have call successors, (3090) [2022-11-18 20:34:47,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12510 states to 12510 states and 18564 transitions. [2022-11-18 20:34:47,787 INFO L78 Accepts]: Start accepts. Automaton has 12510 states and 18564 transitions. Word has length 98 [2022-11-18 20:34:47,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:34:47,789 INFO L495 AbstractCegarLoop]: Abstraction has 12510 states and 18564 transitions. [2022-11-18 20:34:47,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:34:47,790 INFO L276 IsEmpty]: Start isEmpty. Operand 12510 states and 18564 transitions. [2022-11-18 20:34:47,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-18 20:34:47,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:34:47,795 INFO L195 NwaCegarLoop]: 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] [2022-11-18 20:34:47,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:34:47,797 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:34:47,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:34:47,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1565685496, now seen corresponding path program 1 times [2022-11-18 20:34:47,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:34:47,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629090579] [2022-11-18 20:34:47,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:47,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:34:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:48,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:34:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:48,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:34:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:48,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 20:34:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:48,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:34:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:48,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 20:34:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:48,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:34:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:48,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:34:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:48,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 20:34:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:48,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:34:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:48,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 20:34:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:48,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 20:34:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:48,738 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-18 20:34:48,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:34:48,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629090579] [2022-11-18 20:34:48,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629090579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:34:48,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:34:48,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:34:48,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459324320] [2022-11-18 20:34:48,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:34:48,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:34:48,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:34:48,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:34:48,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:34:48,742 INFO L87 Difference]: Start difference. First operand 12510 states and 18564 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:34:51,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:35:22,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:22,568 INFO L93 Difference]: Finished difference Result 63928 states and 101715 transitions. [2022-11-18 20:35:22,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:35:22,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2022-11-18 20:35:22,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:35:22,900 INFO L225 Difference]: With dead ends: 63928 [2022-11-18 20:35:22,900 INFO L226 Difference]: Without dead ends: 51442 [2022-11-18 20:35:23,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:35:23,024 INFO L413 NwaCegarLoop]: 3060 mSDtfsCounter, 7131 mSDsluCounter, 10349 mSDsCounter, 0 mSdLazyCounter, 6904 mSolverCounterSat, 1063 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7827 SdHoareTripleChecker+Valid, 13409 SdHoareTripleChecker+Invalid, 7968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1063 IncrementalHoareTripleChecker+Valid, 6904 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:35:23,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7827 Valid, 13409 Invalid, 7968 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1063 Valid, 6904 Invalid, 1 Unknown, 0 Unchecked, 31.7s Time] [2022-11-18 20:35:23,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51442 states. [2022-11-18 20:35:25,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51442 to 49914. [2022-11-18 20:35:25,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49914 states, 36973 states have (on average 1.3847131690693208) internal successors, (51197), 37893 states have internal predecessors, (51197), 10491 states have call successors, (10491), 2386 states have call predecessors, (10491), 2449 states have return successors, (15530), 10242 states have call predecessors, (15530), 10490 states have call successors, (15530) [2022-11-18 20:35:26,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49914 states to 49914 states and 77218 transitions. [2022-11-18 20:35:26,290 INFO L78 Accepts]: Start accepts. Automaton has 49914 states and 77218 transitions. Word has length 99 [2022-11-18 20:35:26,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:35:26,292 INFO L495 AbstractCegarLoop]: Abstraction has 49914 states and 77218 transitions. [2022-11-18 20:35:26,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:35:26,293 INFO L276 IsEmpty]: Start isEmpty. Operand 49914 states and 77218 transitions. [2022-11-18 20:35:26,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-18 20:35:26,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:35:26,301 INFO L195 NwaCegarLoop]: 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] [2022-11-18 20:35:26,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:35:26,302 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:35:26,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:26,302 INFO L85 PathProgramCache]: Analyzing trace with hash 651836002, now seen corresponding path program 1 times [2022-11-18 20:35:26,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:26,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20710354] [2022-11-18 20:35:26,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:26,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:26,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:27,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:35:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:27,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:35:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:27,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 20:35:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:27,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:35:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:27,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 20:35:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:27,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:35:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:27,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:35:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:27,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 20:35:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:27,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:35:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:27,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 20:35:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:27,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:35:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:27,123 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-18 20:35:27,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:27,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20710354] [2022-11-18 20:35:27,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20710354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:27,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:27,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:35:27,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20325346] [2022-11-18 20:35:27,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:27,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:35:27,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:27,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:35:27,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:35:27,131 INFO L87 Difference]: Start difference. First operand 49914 states and 77218 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:35:29,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:35:36,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:36:04,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:36:04,369 INFO L93 Difference]: Finished difference Result 255076 states and 448227 transitions. [2022-11-18 20:36:04,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:36:04,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2022-11-18 20:36:04,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:36:06,337 INFO L225 Difference]: With dead ends: 255076 [2022-11-18 20:36:06,338 INFO L226 Difference]: Without dead ends: 205186 [2022-11-18 20:36:06,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:36:06,846 INFO L413 NwaCegarLoop]: 3204 mSDtfsCounter, 8658 mSDsluCounter, 7557 mSDsCounter, 0 mSdLazyCounter, 5264 mSolverCounterSat, 1803 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9351 SdHoareTripleChecker+Valid, 10761 SdHoareTripleChecker+Invalid, 7069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1803 IncrementalHoareTripleChecker+Valid, 5264 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:36:06,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9351 Valid, 10761 Invalid, 7069 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1803 Valid, 5264 Invalid, 2 Unknown, 0 Unchecked, 29.0s Time] [2022-11-18 20:36:07,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205186 states. [2022-11-18 20:36:17,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205186 to 199094. [2022-11-18 20:36:18,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199094 states, 147569 states have (on average 1.38303437713883) internal successors, (204093), 151065 states have internal predecessors, (204093), 41771 states have call successors, (41771), 9506 states have call predecessors, (41771), 9753 states have return successors, (89396), 40826 states have call predecessors, (89396), 41770 states have call successors, (89396) [2022-11-18 20:36:20,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199094 states to 199094 states and 335260 transitions. [2022-11-18 20:36:20,858 INFO L78 Accepts]: Start accepts. Automaton has 199094 states and 335260 transitions. Word has length 96 [2022-11-18 20:36:20,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:36:20,858 INFO L495 AbstractCegarLoop]: Abstraction has 199094 states and 335260 transitions. [2022-11-18 20:36:20,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:36:20,859 INFO L276 IsEmpty]: Start isEmpty. Operand 199094 states and 335260 transitions. [2022-11-18 20:36:20,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-18 20:36:20,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:36:20,862 INFO L195 NwaCegarLoop]: 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] [2022-11-18 20:36:20,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:36:20,862 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:36:20,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:20,863 INFO L85 PathProgramCache]: Analyzing trace with hash 722048128, now seen corresponding path program 1 times [2022-11-18 20:36:20,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:20,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433783081] [2022-11-18 20:36:20,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:20,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:21,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:36:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:21,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:36:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:21,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 20:36:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:21,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:36:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:21,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 20:36:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:21,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:36:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:21,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:36:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:21,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 20:36:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:21,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:36:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:21,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 20:36:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:21,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:36:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:21,516 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-18 20:36:21,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:21,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433783081] [2022-11-18 20:36:21,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433783081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:21,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:21,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:36:21,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104613553] [2022-11-18 20:36:21,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:21,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:36:21,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:21,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:36:21,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:36:21,521 INFO L87 Difference]: Start difference. First operand 199094 states and 335260 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:36:24,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:36:27,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []