./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 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fe569e-e75c-4f32-a477-344623f032a0/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fe569e-e75c-4f32-a477-344623f032a0/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fe569e-e75c-4f32-a477-344623f032a0/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fe569e-e75c-4f32-a477-344623f032a0/bin/uautomizer-YU5uOKAj3y/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_b4fe569e-e75c-4f32-a477-344623f032a0/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fe569e-e75c-4f32-a477-344623f032a0/bin/uautomizer-YU5uOKAj3y --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 --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:18:51,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:18:51,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:18:51,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:18:51,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:18:51,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:18:51,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:18:51,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:18:51,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:18:51,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:18:51,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:18:51,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:18:51,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:18:51,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:18:51,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:18:51,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:18:51,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:18:51,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:18:51,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:18:51,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:18:51,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:18:51,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:18:51,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:18:51,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:18:51,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:18:51,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:18:51,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:18:51,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:18:51,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:18:51,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:18:51,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:18:51,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:18:51,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:18:51,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:18:51,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:18:51,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:18:51,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:18:51,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:18:51,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:18:51,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:18:51,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:18:51,133 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fe569e-e75c-4f32-a477-344623f032a0/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:18:51,159 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:18:51,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:18:51,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:18:51,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:18:51,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:18:51,160 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:18:51,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:18:51,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:18:51,161 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:18:51,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:18:51,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:18:51,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:18:51,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:18:51,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:18:51,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:18:51,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:18:51,163 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:18:51,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:18:51,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:18:51,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:18:51,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:18:51,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:18:51,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:18:51,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:18:51,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:18:51,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:18:51,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:18:51,166 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:18:51,166 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:18:51,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:18:51,166 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:18:51,166 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_b4fe569e-e75c-4f32-a477-344623f032a0/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fe569e-e75c-4f32-a477-344623f032a0/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2021-11-13 18:18:51,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:18:51,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:18:51,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:18:51,453 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:18:51,454 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:18:51,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fe569e-e75c-4f32-a477-344623f032a0/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-13 18:18:51,526 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fe569e-e75c-4f32-a477-344623f032a0/bin/uautomizer-YU5uOKAj3y/data/c4ee7b63c/52e309e2f18f4a2e918f0c81f253066b/FLAG615583f06 [2021-11-13 18:18:52,489 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:18:52,489 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fe569e-e75c-4f32-a477-344623f032a0/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-13 18:18:52,563 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fe569e-e75c-4f32-a477-344623f032a0/bin/uautomizer-YU5uOKAj3y/data/c4ee7b63c/52e309e2f18f4a2e918f0c81f253066b/FLAG615583f06 [2021-11-13 18:18:52,872 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fe569e-e75c-4f32-a477-344623f032a0/bin/uautomizer-YU5uOKAj3y/data/c4ee7b63c/52e309e2f18f4a2e918f0c81f253066b [2021-11-13 18:18:52,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:18:52,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:18:52,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:18:52,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:18:52,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:18:52,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:18:52" (1/1) ... [2021-11-13 18:18:52,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c2bccb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:18:52, skipping insertion in model container [2021-11-13 18:18:52,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:18:52" (1/1) ... [2021-11-13 18:18:52,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:18:53,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:18:53,708 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-11-13 18:18:53,708 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-11-13 18:18:54,281 WARN L228 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_b4fe569e-e75c-4f32-a477-344623f032a0/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-11-13 18:18:55,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:18:55,523 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:18:55,693 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-11-13 18:18:55,695 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-11-13 18:18:55,717 WARN L228 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_b4fe569e-e75c-4f32-a477-344623f032a0/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-11-13 18:18:56,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:18:56,358 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:18:56,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:18:56 WrapperNode [2021-11-13 18:18:56,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:18:56,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:18:56,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:18:56,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:18:56,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:18:56" (1/1) ... [2021-11-13 18:18:56,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:18:56" (1/1) ... [2021-11-13 18:18:56,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:18:56,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:18:56,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:18:56,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:18:56,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:18:56" (1/1) ... [2021-11-13 18:18:56,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:18:56" (1/1) ... [2021-11-13 18:18:56,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:18:56" (1/1) ... [2021-11-13 18:18:56,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:18:56" (1/1) ... [2021-11-13 18:18:56,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:18:56" (1/1) ... [2021-11-13 18:18:56,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:18:56" (1/1) ... [2021-11-13 18:18:57,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:18:56" (1/1) ... [2021-11-13 18:18:57,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:18:57,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:18:57,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:18:57,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:18:57,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:18:56" (1/1) ... [2021-11-13 18:18:57,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:18:57,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fe569e-e75c-4f32-a477-344623f032a0/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:18:57,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fe569e-e75c-4f32-a477-344623f032a0/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:18:57,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4fe569e-e75c-4f32-a477-344623f032a0/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:18:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-13 18:18:57,211 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-13 18:18:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 18:18:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-13 18:18:57,211 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-13 18:18:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 18:18:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 18:18:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 18:18:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 18:18:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 18:18:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2021-11-13 18:18:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2021-11-13 18:18:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-13 18:18:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-13 18:18:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2021-11-13 18:18:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2021-11-13 18:18:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:18:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:18:57,214 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-13 18:18:57,214 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_stop [2021-11-13 18:18:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_stop [2021-11-13 18:18:57,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-13 18:18:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-13 18:18:57,214 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2021-11-13 18:18:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2021-11-13 18:18:57,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 18:18:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 18:18:57,215 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 18:18:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 18:18:57,215 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 18:18:57,216 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 18:18:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-13 18:18:57,216 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-13 18:18:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_find [2021-11-13 18:18:57,216 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_find [2021-11-13 18:18:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 18:18:57,217 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 18:18:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2021-11-13 18:18:57,217 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2021-11-13 18:18:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-11-13 18:18:57,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-11-13 18:18:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure atm_may_send [2021-11-13 18:18:57,217 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_may_send [2021-11-13 18:18:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_open [2021-11-13 18:18:57,218 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_open [2021-11-13 18:18:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-13 18:18:57,218 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-13 18:18:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-13 18:18:57,219 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-13 18:18:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:18:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-13 18:18:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tx_timeout [2021-11-13 18:18:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tx_timeout [2021-11-13 18:18:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2021-11-13 18:18:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2021-11-13 18:18:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2021-11-13 18:18:57,222 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2021-11-13 18:18:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:18:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-13 18:18:57,222 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-13 18:18:57,223 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2021-11-13 18:18:57,223 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2021-11-13 18:18:57,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-13 18:18:57,223 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 18:18:57,224 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 18:18:57,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:18:57,224 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-11-13 18:18:57,224 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-11-13 18:18:57,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:18:57,225 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-13 18:18:57,226 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-13 18:18:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-13 18:18:57,226 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-13 18:18:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-13 18:18:57,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-13 18:18:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tbl_walk [2021-11-13 18:18:57,227 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tbl_walk [2021-11-13 18:18:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 18:18:57,227 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 18:18:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 18:18:57,227 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 18:18:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 18:18:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-13 18:18:57,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-13 18:18:57,228 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2021-11-13 18:18:57,228 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2021-11-13 18:18:57,228 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-13 18:18:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-13 18:18:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2021-11-13 18:18:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2021-11-13 18:18:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2021-11-13 18:18:57,230 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2021-11-13 18:18:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-13 18:18:57,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-13 18:18:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 18:18:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2021-11-13 18:18:57,231 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2021-11-13 18:18:57,232 INFO L130 BoogieDeclarations]: Found specification of procedure lec_get_idx [2021-11-13 18:18:57,232 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_get_idx [2021-11-13 18:18:57,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:18:57,232 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_add [2021-11-13 18:18:57,232 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_add [2021-11-13 18:18:57,233 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 18:18:57,233 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 18:18:57,233 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2021-11-13 18:18:57,233 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2021-11-13 18:18:57,233 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-13 18:18:57,233 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-13 18:18:57,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 18:18:57,234 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 18:18:57,234 INFO L130 BoogieDeclarations]: Found specification of procedure lec_change_mtu [2021-11-13 18:18:57,234 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_change_mtu [2021-11-13 18:18:57,234 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2021-11-13 18:18:57,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2021-11-13 18:18:57,235 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 18:18:57,236 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 18:18:57,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 18:18:57,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 18:18:57,239 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-11-13 18:18:57,239 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-11-13 18:18:57,240 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 18:18:57,241 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 18:18:57,241 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_show [2021-11-13 18:18:57,242 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_show [2021-11-13 18:18:57,242 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_release_async [2021-11-13 18:18:57,247 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_release_async [2021-11-13 18:18:57,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:18:57,248 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2021-11-13 18:18:57,248 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2021-11-13 18:18:57,248 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release_private [2021-11-13 18:18:57,248 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release_private [2021-11-13 18:18:57,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 18:18:57,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 18:18:57,249 INFO L130 BoogieDeclarations]: Found specification of procedure lec_set_multicast_list [2021-11-13 18:18:57,249 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_set_multicast_list [2021-11-13 18:18:57,249 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_put [2021-11-13 18:18:57,249 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_put [2021-11-13 18:18:57,249 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_hold [2021-11-13 18:18:57,249 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_hold [2021-11-13 18:18:57,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:18:57,250 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-11-13 18:18:57,250 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-11-13 18:18:57,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:18:57,250 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 18:18:57,250 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-13 18:18:57,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-13 18:18:57,250 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:18:57,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:18:57,251 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2021-11-13 18:18:57,251 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2021-11-13 18:18:57,251 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-13 18:18:57,251 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-13 18:18:57,251 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2021-11-13 18:18:57,251 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2021-11-13 18:18:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_close [2021-11-13 18:18:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_close [2021-11-13 18:18:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-13 18:18:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-13 18:18:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-13 18:18:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-13 18:18:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure make_entry [2021-11-13 18:18:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure make_entry [2021-11-13 18:18:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-13 18:18:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-13 18:18:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_remove [2021-11-13 18:18:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_remove [2021-11-13 18:18:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:18:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2021-11-13 18:18:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2021-11-13 18:18:57,254 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_clear_vccs [2021-11-13 18:18:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_clear_vccs [2021-11-13 18:18:57,254 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-11-13 18:18:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-11-13 18:18:57,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:18:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:18:58,796 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 18:18:59,605 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-13 18:19:00,636 INFO L766 $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; [2021-11-13 18:19:00,636 INFO L766 $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; [2021-11-13 18:19:31,922 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:19:31,923 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:19:31,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:19:31 BoogieIcfgContainer [2021-11-13 18:19:31,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:19:31,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:19:31,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:19:31,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:19:31,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:18:52" (1/3) ... [2021-11-13 18:19:31,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5411a5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:19:31, skipping insertion in model container [2021-11-13 18:19:31,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:18:56" (2/3) ... [2021-11-13 18:19:31,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5411a5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:19:31, skipping insertion in model container [2021-11-13 18:19:31,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:19:31" (3/3) ... [2021-11-13 18:19:31,940 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-11-13 18:19:31,945 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:19:31,946 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:19:32,027 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:19:32,040 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:19:32,041 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:19:32,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 1666 states, 1226 states have (on average 1.3890701468189233) internal successors, (1703), 1266 states have internal predecessors, (1703), 361 states have call successors, (361), 78 states have call predecessors, (361), 77 states have return successors, (352), 342 states have call predecessors, (352), 352 states have call successors, (352) [2021-11-13 18:19:32,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-13 18:19:32,140 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:19:32,141 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:19:32,142 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:19:32,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:19:32,147 INFO L85 PathProgramCache]: Analyzing trace with hash -425156242, now seen corresponding path program 1 times [2021-11-13 18:19:32,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:19:32,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271463754] [2021-11-13 18:19:32,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:19:32,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:19:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:33,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:19:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:33,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 18:19:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:33,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:19:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:33,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:19:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:33,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-13 18:19:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:33,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:19:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:33,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:19:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:33,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:19:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:33,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:19:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:33,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-13 18:19:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:33,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 18:19:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:33,538 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-13 18:19:33,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:19:33,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271463754] [2021-11-13 18:19:33,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271463754] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:19:33,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:19:33,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:19:33,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225674328] [2021-11-13 18:19:33,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:19:33,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:19:33,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:19:33,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:19:33,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:19:33,591 INFO L87 Difference]: Start difference. First operand has 1666 states, 1226 states have (on average 1.3890701468189233) internal successors, (1703), 1266 states have internal predecessors, (1703), 361 states have call successors, (361), 78 states have call predecessors, (361), 77 states have return successors, (352), 342 states have call predecessors, (352), 352 states have call successors, (352) Second operand has 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) [2021-11-13 18:19:35,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:38,257 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:48,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:19:48,315 INFO L93 Difference]: Finished difference Result 4987 states and 7475 transitions. [2021-11-13 18:19:48,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:19:48,318 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 [2021-11-13 18:19:48,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:19:48,372 INFO L225 Difference]: With dead ends: 4987 [2021-11-13 18:19:48,372 INFO L226 Difference]: Without dead ends: 3271 [2021-11-13 18:19:48,391 INFO L932 BasicCegarLoop]: 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 [2021-11-13 18:19:48,394 INFO L933 BasicCegarLoop]: 2675 mSDtfsCounter, 2714 mSDsluCounter, 3254 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 804 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13044.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2970 SdHoareTripleChecker+Valid, 5929 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 83.03ms SdHoareTripleChecker+Time, 804 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14170.40ms IncrementalHoareTripleChecker+Time [2021-11-13 18:19:48,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2970 Valid, 5929 Invalid, 2113 Unknown, 0 Unchecked, 83.03ms Time], IncrementalHoareTripleChecker [804 Valid, 1307 Invalid, 2 Unknown, 0 Unchecked, 14170.40ms Time] [2021-11-13 18:19:48,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3271 states. [2021-11-13 18:19:48,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3271 to 3160. [2021-11-13 18:19:48,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2340 states have (on average 1.3858974358974359) internal successors, (3243), 2398 states have internal predecessors, (3243), 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) [2021-11-13 18:19:48,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4580 transitions. [2021-11-13 18:19:48,667 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4580 transitions. Word has length 86 [2021-11-13 18:19:48,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:19:48,668 INFO L470 AbstractCegarLoop]: Abstraction has 3160 states and 4580 transitions. [2021-11-13 18:19:48,668 INFO L471 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) [2021-11-13 18:19:48,668 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4580 transitions. [2021-11-13 18:19:48,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-13 18:19:48,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:19:48,676 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:19:48,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:19:48,676 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:19:48,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:19:48,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1558567683, now seen corresponding path program 1 times [2021-11-13 18:19:48,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:19:48,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972848311] [2021-11-13 18:19:48,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:19:48,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:19:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:49,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:19:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:49,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 18:19:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:49,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:19:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:49,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:19:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-13 18:19:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:49,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:19:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:49,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:19:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:49,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:19:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:49,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:19:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:49,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-13 18:19:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:49,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-13 18:19:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:49,398 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-13 18:19:49,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:19:49,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972848311] [2021-11-13 18:19:49,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972848311] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:19:49,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:19:49,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:19:49,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715900964] [2021-11-13 18:19:49,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:19:49,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:19:49,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:19:49,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:19:49,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:19:49,402 INFO L87 Difference]: Start difference. First operand 3160 states and 4580 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) [2021-11-13 18:19:51,516 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:53,630 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:56,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:02,094 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:22,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:20:22,490 INFO L93 Difference]: Finished difference Result 16060 states and 24369 transitions. [2021-11-13 18:20:22,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:20:22,490 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 [2021-11-13 18:20:22,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:20:22,617 INFO L225 Difference]: With dead ends: 16060 [2021-11-13 18:20:22,618 INFO L226 Difference]: Without dead ends: 12924 [2021-11-13 18:20:22,653 INFO L932 BasicCegarLoop]: 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 [2021-11-13 18:20:22,654 INFO L933 BasicCegarLoop]: 3550 mSDtfsCounter, 10219 mSDsluCounter, 6224 mSDsCounter, 0 mSdLazyCounter, 4112 mSolverCounterSat, 3188 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29930.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10915 SdHoareTripleChecker+Valid, 9774 SdHoareTripleChecker+Invalid, 7304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 104.13ms SdHoareTripleChecker+Time, 3188 IncrementalHoareTripleChecker+Valid, 4112 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32066.88ms IncrementalHoareTripleChecker+Time [2021-11-13 18:20:22,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10915 Valid, 9774 Invalid, 7304 Unknown, 0 Unchecked, 104.13ms Time], IncrementalHoareTripleChecker [3188 Valid, 4112 Invalid, 4 Unknown, 0 Unchecked, 32066.88ms Time] [2021-11-13 18:20:22,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12924 states. [2021-11-13 18:20:23,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12924 to 12518. [2021-11-13 18:20:23,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12518 states, 9271 states have (on average 1.3855031819652681) internal successors, (12845), 9505 states have internal predecessors, (12845), 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) [2021-11-13 18:20:23,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12518 states to 12518 states and 18572 transitions. [2021-11-13 18:20:23,325 INFO L78 Accepts]: Start accepts. Automaton has 12518 states and 18572 transitions. Word has length 98 [2021-11-13 18:20:23,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:20:23,328 INFO L470 AbstractCegarLoop]: Abstraction has 12518 states and 18572 transitions. [2021-11-13 18:20:23,329 INFO L471 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) [2021-11-13 18:20:23,329 INFO L276 IsEmpty]: Start isEmpty. Operand 12518 states and 18572 transitions. [2021-11-13 18:20:23,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-13 18:20:23,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:20:23,334 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:20:23,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:20:23,336 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:20:23,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:20:23,336 INFO L85 PathProgramCache]: Analyzing trace with hash 128328967, now seen corresponding path program 1 times [2021-11-13 18:20:23,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:20:23,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949295639] [2021-11-13 18:20:23,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:20:23,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:20:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:23,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:20:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:23,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 18:20:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:23,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:20:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:23,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:20:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:23,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-13 18:20:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:24,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:20:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:24,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:20:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:24,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:20:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:24,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:20:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:24,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-13 18:20:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:24,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-13 18:20:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:24,089 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-13 18:20:24,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:20:24,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949295639] [2021-11-13 18:20:24,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949295639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:20:24,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:20:24,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:20:24,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94625887] [2021-11-13 18:20:24,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:20:24,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:20:24,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:20:24,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:20:24,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:20:24,094 INFO L87 Difference]: Start difference. First operand 12518 states and 18572 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) [2021-11-13 18:20:26,206 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:28,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:30,726 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:37,662 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:02,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:21:02,511 INFO L93 Difference]: Finished difference Result 63948 states and 101823 transitions. [2021-11-13 18:21:02,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:21:02,512 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 97 [2021-11-13 18:21:02,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:21:02,857 INFO L225 Difference]: With dead ends: 63948 [2021-11-13 18:21:02,857 INFO L226 Difference]: Without dead ends: 51454 [2021-11-13 18:21:02,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:21:02,993 INFO L933 BasicCegarLoop]: 3502 mSDtfsCounter, 6975 mSDsluCounter, 11318 mSDsCounter, 0 mSdLazyCounter, 5800 mSolverCounterSat, 1142 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34559.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7661 SdHoareTripleChecker+Valid, 14820 SdHoareTripleChecker+Invalid, 6946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 81.28ms SdHoareTripleChecker+Time, 1142 IncrementalHoareTripleChecker+Valid, 5800 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36687.05ms IncrementalHoareTripleChecker+Time [2021-11-13 18:21:02,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7661 Valid, 14820 Invalid, 6946 Unknown, 0 Unchecked, 81.28ms Time], IncrementalHoareTripleChecker [1142 Valid, 5800 Invalid, 4 Unknown, 0 Unchecked, 36687.05ms Time] [2021-11-13 18:21:03,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51454 states. [2021-11-13 18:21:05,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51454 to 49922. [2021-11-13 18:21:05,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49922 states, 36981 states have (on average 1.3839809631973174) internal successors, (51181), 37901 states have internal predecessors, (51181), 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) [2021-11-13 18:21:06,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49922 states to 49922 states and 77202 transitions. [2021-11-13 18:21:06,470 INFO L78 Accepts]: Start accepts. Automaton has 49922 states and 77202 transitions. Word has length 97 [2021-11-13 18:21:06,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:21:06,473 INFO L470 AbstractCegarLoop]: Abstraction has 49922 states and 77202 transitions. [2021-11-13 18:21:06,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-13 18:21:06,473 INFO L276 IsEmpty]: Start isEmpty. Operand 49922 states and 77202 transitions. [2021-11-13 18:21:06,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-13 18:21:06,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:21:06,478 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:21:06,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:21:06,478 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:21:06,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:21:06,479 INFO L85 PathProgramCache]: Analyzing trace with hash 695073867, now seen corresponding path program 1 times [2021-11-13 18:21:06,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:21:06,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707707286] [2021-11-13 18:21:06,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:21:06,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:21:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:07,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:21:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:07,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 18:21:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:07,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:21:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:07,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:21:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:07,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-13 18:21:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:07,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:21:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:07,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:21:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:07,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:21:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:07,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:21:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:07,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-13 18:21:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:07,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-13 18:21:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:07,357 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-13 18:21:07,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:21:07,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707707286] [2021-11-13 18:21:07,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707707286] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:21:07,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:21:07,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:21:07,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072324978] [2021-11-13 18:21:07,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:21:07,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:21:07,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:21:07,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:21:07,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:21:07,361 INFO L87 Difference]: Start difference. First operand 49922 states and 77202 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) [2021-11-13 18:21:09,536 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:11,615 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:14,131 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:45,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:21:45,533 INFO L93 Difference]: Finished difference Result 255124 states and 447863 transitions. [2021-11-13 18:21:45,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:21:45,534 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 [2021-11-13 18:21:45,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:21:47,683 INFO L225 Difference]: With dead ends: 255124 [2021-11-13 18:21:47,683 INFO L226 Difference]: Without dead ends: 205226 [2021-11-13 18:21:48,238 INFO L932 BasicCegarLoop]: 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 [2021-11-13 18:21:48,239 INFO L933 BasicCegarLoop]: 3550 mSDtfsCounter, 7276 mSDsluCounter, 9022 mSDsCounter, 0 mSdLazyCounter, 5399 mSolverCounterSat, 1728 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30013.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7973 SdHoareTripleChecker+Valid, 12572 SdHoareTripleChecker+Invalid, 7130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 72.83ms SdHoareTripleChecker+Time, 1728 IncrementalHoareTripleChecker+Valid, 5399 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31986.36ms IncrementalHoareTripleChecker+Time [2021-11-13 18:21:48,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7973 Valid, 12572 Invalid, 7130 Unknown, 0 Unchecked, 72.83ms Time], IncrementalHoareTripleChecker [1728 Valid, 5399 Invalid, 3 Unknown, 0 Unchecked, 31986.36ms Time] [2021-11-13 18:21:48,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205226 states. [2021-11-13 18:21:58,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205226 to 199134. [2021-11-13 18:21:58,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199134 states, 147629 states have (on average 1.3825535633242791) internal successors, (204105), 151105 states have internal predecessors, (204105), 41771 states have call successors, (41771), 9506 states have call predecessors, (41771), 9733 states have return successors, (89356), 40786 states have call predecessors, (89356), 41770 states have call successors, (89356) [2021-11-13 18:22:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199134 states to 199134 states and 335232 transitions. [2021-11-13 18:22:00,644 INFO L78 Accepts]: Start accepts. Automaton has 199134 states and 335232 transitions. Word has length 96 [2021-11-13 18:22:00,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:22:00,645 INFO L470 AbstractCegarLoop]: Abstraction has 199134 states and 335232 transitions. [2021-11-13 18:22:00,645 INFO L471 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) [2021-11-13 18:22:00,645 INFO L276 IsEmpty]: Start isEmpty. Operand 199134 states and 335232 transitions. [2021-11-13 18:22:00,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-13 18:22:00,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:22:00,648 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:22:00,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:22:00,649 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:22:00,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:22:00,649 INFO L85 PathProgramCache]: Analyzing trace with hash 470789055, now seen corresponding path program 1 times [2021-11-13 18:22:00,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:22:00,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023577350] [2021-11-13 18:22:00,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:22:00,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:22:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:01,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:22:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:01,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 18:22:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:01,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:22:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:01,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:22:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:01,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-13 18:22:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:01,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:22:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:01,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 18:22:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:01,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:22:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:01,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:22:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:01,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-13 18:22:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:01,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:22:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:01,313 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-13 18:22:01,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:22:01,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023577350] [2021-11-13 18:22:01,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023577350] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:22:01,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:22:01,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:22:01,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618109848] [2021-11-13 18:22:01,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:22:01,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:22:01,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:22:01,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:22:01,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:22:01,316 INFO L87 Difference]: Start difference. First operand 199134 states and 335232 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) [2021-11-13 18:22:03,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:05,511 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:08,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []