./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 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/bin/uautomizer-Dbtcem3rbc/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_3e654123-4588-4836-95aa-cdbb01968131/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:35:47,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:35:47,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:35:47,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:35:47,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:35:47,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:35:47,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:35:47,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:35:47,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:35:47,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:35:47,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:35:47,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:35:47,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:35:47,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:35:47,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:35:47,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:35:47,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:35:47,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:35:47,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:35:47,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:35:47,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:35:47,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:35:47,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:35:47,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:35:47,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:35:47,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:35:47,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:35:47,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:35:47,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:35:47,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:35:47,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:35:47,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:35:47,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:35:47,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:35:47,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:35:47,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:35:47,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:35:47,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:35:47,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:35:47,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:35:47,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:35:47,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:35:47,663 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:35:47,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:35:47,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:35:47,665 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:35:47,666 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:35:47,666 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:35:47,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:35:47,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:35:47,668 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:35:47,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:35:47,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:35:47,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:35:47,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:35:47,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:35:47,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:35:47,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:35:47,671 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:35:47,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:35:47,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:35:47,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:35:47,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:35:47,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:35:47,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:35:47,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:35:47,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:35:47,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:35:47,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:35:47,674 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:35:47,674 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:35:47,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:35:47,675 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_3e654123-4588-4836-95aa-cdbb01968131/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2022-11-02 20:35:48,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:35:48,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:35:48,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:35:48,146 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:35:48,147 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:35:48,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2022-11-02 20:35:48,236 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/bin/uautomizer-Dbtcem3rbc/data/6003e83a7/e57cde798a6848659acf7e7d72d6a341/FLAG4dbf21e61 [2022-11-02 20:35:49,325 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:35:49,326 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2022-11-02 20:35:49,412 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/bin/uautomizer-Dbtcem3rbc/data/6003e83a7/e57cde798a6848659acf7e7d72d6a341/FLAG4dbf21e61 [2022-11-02 20:35:49,652 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/bin/uautomizer-Dbtcem3rbc/data/6003e83a7/e57cde798a6848659acf7e7d72d6a341 [2022-11-02 20:35:49,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:35:49,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:35:49,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:35:49,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:35:49,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:35:49,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:35:49" (1/1) ... [2022-11-02 20:35:49,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56fca4e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:49, skipping insertion in model container [2022-11-02 20:35:49,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:35:49" (1/1) ... [2022-11-02 20:35:49,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:35:49,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:35:50,627 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2022-11-02 20:35:50,628 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2022-11-02 20:35:51,249 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2022-11-02 20:35:52,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:35:52,820 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:35:52,981 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2022-11-02 20:35:52,982 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2022-11-02 20:35:52,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2022-11-02 20:35:53,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:35:53,430 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:35:53,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:53 WrapperNode [2022-11-02 20:35:53,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:35:53,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:35:53,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:35:53,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:35:53,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:53" (1/1) ... [2022-11-02 20:35:53,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:53" (1/1) ... [2022-11-02 20:35:53,866 INFO L138 Inliner]: procedures = 286, calls = 2896, calls flagged for inlining = 145, calls inlined = 128, statements flattened = 5519 [2022-11-02 20:35:53,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:35:53,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:35:53,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:35:53,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:35:53,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:53" (1/1) ... [2022-11-02 20:35:53,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:53" (1/1) ... [2022-11-02 20:35:53,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:53" (1/1) ... [2022-11-02 20:35:53,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:53" (1/1) ... [2022-11-02 20:35:54,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:53" (1/1) ... [2022-11-02 20:35:54,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:53" (1/1) ... [2022-11-02 20:35:54,096 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:53" (1/1) ... [2022-11-02 20:35:54,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:53" (1/1) ... [2022-11-02 20:35:54,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:35:54,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:35:54,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:35:54,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:35:54,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:53" (1/1) ... [2022-11-02 20:35:54,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:35:54,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:35:54,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:35:54,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e654123-4588-4836-95aa-cdbb01968131/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:35:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-02 20:35:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-02 20:35:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 20:35:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-02 20:35:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-02 20:35:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 20:35:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 20:35:54,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 20:35:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-02 20:35:54,236 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-02 20:35:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2022-11-02 20:35:54,236 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2022-11-02 20:35:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-02 20:35:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-02 20:35:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2022-11-02 20:35:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2022-11-02 20:35:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:35:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:35:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-02 20:35:54,238 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_stop [2022-11-02 20:35:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_stop [2022-11-02 20:35:54,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 20:35:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 20:35:54,238 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2022-11-02 20:35:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2022-11-02 20:35:54,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:35:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:35:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:35:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:35:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-02 20:35:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-02 20:35:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-02 20:35:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-02 20:35:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_find [2022-11-02 20:35:54,240 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_find [2022-11-02 20:35:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-02 20:35:54,240 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-02 20:35:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2022-11-02 20:35:54,241 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2022-11-02 20:35:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-11-02 20:35:54,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-11-02 20:35:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure atm_may_send [2022-11-02 20:35:54,242 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_may_send [2022-11-02 20:35:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_open [2022-11-02 20:35:54,242 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_open [2022-11-02 20:35:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-02 20:35:54,242 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-02 20:35:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-02 20:35:54,243 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-02 20:35:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:35:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-02 20:35:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tx_timeout [2022-11-02 20:35:54,244 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tx_timeout [2022-11-02 20:35:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2022-11-02 20:35:54,245 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2022-11-02 20:35:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2022-11-02 20:35:54,245 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2022-11-02 20:35:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:35:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-02 20:35:54,246 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-02 20:35:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2022-11-02 20:35:54,247 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2022-11-02 20:35:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-02 20:35:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-02 20:35:54,247 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-02 20:35:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:35:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-02 20:35:54,248 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-02 20:35:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:35:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-02 20:35:54,249 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-02 20:35:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-02 20:35:54,249 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-02 20:35:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-02 20:35:54,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-02 20:35:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tbl_walk [2022-11-02 20:35:54,250 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tbl_walk [2022-11-02 20:35:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-02 20:35:54,250 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-02 20:35:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-02 20:35:54,250 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-02 20:35:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 20:35:54,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-02 20:35:54,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-02 20:35:54,251 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2022-11-02 20:35:54,251 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2022-11-02 20:35:54,252 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-02 20:35:54,252 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-02 20:35:54,252 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2022-11-02 20:35:54,252 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2022-11-02 20:35:54,252 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2022-11-02 20:35:54,253 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2022-11-02 20:35:54,254 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-02 20:35:54,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-02 20:35:54,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 20:35:54,254 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2022-11-02 20:35:54,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2022-11-02 20:35:54,254 INFO L130 BoogieDeclarations]: Found specification of procedure lec_get_idx [2022-11-02 20:35:54,254 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_get_idx [2022-11-02 20:35:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:35:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_add [2022-11-02 20:35:54,255 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_add [2022-11-02 20:35:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-02 20:35:54,255 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-02 20:35:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2022-11-02 20:35:54,255 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2022-11-02 20:35:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-02 20:35:54,256 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-02 20:35:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 20:35:54,256 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 20:35:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure lec_change_mtu [2022-11-02 20:35:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_change_mtu [2022-11-02 20:35:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-11-02 20:35:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-11-02 20:35:54,258 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-02 20:35:54,317 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-02 20:35:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-02 20:35:54,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-02 20:35:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-11-02 20:35:54,317 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-11-02 20:35:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 20:35:54,318 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 20:35:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_show [2022-11-02 20:35:54,318 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_show [2022-11-02 20:35:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_release_async [2022-11-02 20:35:54,318 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_release_async [2022-11-02 20:35:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:35:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2022-11-02 20:35:54,318 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2022-11-02 20:35:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release_private [2022-11-02 20:35:54,319 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release_private [2022-11-02 20:35:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:35:54,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:35:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure lec_set_multicast_list [2022-11-02 20:35:54,319 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_set_multicast_list [2022-11-02 20:35:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_put [2022-11-02 20:35:54,319 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_put [2022-11-02 20:35:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_hold [2022-11-02 20:35:54,320 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_hold [2022-11-02 20:35:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:35:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-11-02 20:35:54,320 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-11-02 20:35:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:35:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:35:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-02 20:35:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-02 20:35:54,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-02 20:35:54,321 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:35:54,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:35:54,321 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2022-11-02 20:35:54,321 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2022-11-02 20:35:54,321 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-02 20:35:54,321 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-02 20:35:54,321 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2022-11-02 20:35:54,321 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2022-11-02 20:35:54,321 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_close [2022-11-02 20:35:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_close [2022-11-02 20:35:54,322 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-02 20:35:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-02 20:35:54,322 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-02 20:35:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-02 20:35:54,322 INFO L130 BoogieDeclarations]: Found specification of procedure make_entry [2022-11-02 20:35:54,324 INFO L138 BoogieDeclarations]: Found implementation of procedure make_entry [2022-11-02 20:35:54,324 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-02 20:35:54,324 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-02 20:35:54,324 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_remove [2022-11-02 20:35:54,325 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_remove [2022-11-02 20:35:54,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:35:54,325 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2022-11-02 20:35:54,325 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2022-11-02 20:35:54,325 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_clear_vccs [2022-11-02 20:35:54,325 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_clear_vccs [2022-11-02 20:35:54,325 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2022-11-02 20:35:54,325 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2022-11-02 20:35:54,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:35:54,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:35:55,356 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:35:55,363 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:35:55,668 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 20:36:04,021 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 20:36:06,599 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0 != (lec_addr_delete_~____ptr___0~4#1.base + lec_addr_delete_~____ptr___0~4#1.offset) % 18446744073709551616);lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset := 0, 0;lec_addr_delete_~entry~10#1.base, lec_addr_delete_~entry~10#1.offset := lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset; [2022-11-02 20:36:06,599 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0 != (lec_addr_delete_~____ptr___0~4#1.base + lec_addr_delete_~____ptr___0~4#1.offset) % 18446744073709551616;lec_addr_delete_~__mptr___0~5#1.base, lec_addr_delete_~__mptr___0~5#1.offset := lec_addr_delete_~____ptr___0~4#1.base, lec_addr_delete_~____ptr___0~4#1.offset;lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset := lec_addr_delete_~__mptr___0~5#1.base, lec_addr_delete_~__mptr___0~5#1.offset; [2022-11-02 20:36:13,660 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:36:13,680 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:36:13,681 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:36:13,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:36:13 BoogieIcfgContainer [2022-11-02 20:36:13,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:36:13,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:36:13,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:36:13,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:36:13,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:35:49" (1/3) ... [2022-11-02 20:36:13,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d205c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:36:13, skipping insertion in model container [2022-11-02 20:36:13,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:53" (2/3) ... [2022-11-02 20:36:13,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d205c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:36:13, skipping insertion in model container [2022-11-02 20:36:13,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:36:13" (3/3) ... [2022-11-02 20:36:13,695 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2022-11-02 20:36:13,715 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:36:13,716 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:36:13,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:36:13,805 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1682d5a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:36:13,805 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:36:13,815 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) [2022-11-02 20:36:13,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-02 20:36:13,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:13,836 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:36:13,836 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:36:13,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:13,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1135839636, now seen corresponding path program 1 times [2022-11-02 20:36:13,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:13,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288110512] [2022-11-02 20:36:13,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:13,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:14,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:36:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:14,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:36:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:14,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:36:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:14,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:36:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:14,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 20:36:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:14,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:36:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:14,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 20:36:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:14,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 20:36:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:14,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:36:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:14,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-02 20:36:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-02 20:36:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:14,979 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-02 20:36:14,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:14,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288110512] [2022-11-02 20:36:14,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288110512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:14,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:14,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:36:14,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305417177] [2022-11-02 20:36:14,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:15,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:36:15,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:15,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:36:15,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:36:15,043 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) [2022-11-02 20:36:17,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:29,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:29,847 INFO L93 Difference]: Finished difference Result 4987 states and 7475 transitions. [2022-11-02 20:36:29,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:36:29,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 86 [2022-11-02 20:36:29,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:29,925 INFO L225 Difference]: With dead ends: 4987 [2022-11-02 20:36:29,926 INFO L226 Difference]: Without dead ends: 3271 [2022-11-02 20:36:29,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:36:29,947 INFO L413 NwaCegarLoop]: 2669 mSDtfsCounter, 2717 mSDsluCounter, 2997 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 805 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2973 SdHoareTripleChecker+Valid, 5666 SdHoareTripleChecker+Invalid, 2367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 805 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:29,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2973 Valid, 5666 Invalid, 2367 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [805 Valid, 1561 Invalid, 1 Unknown, 0 Unchecked, 14.2s Time] [2022-11-02 20:36:29,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3271 states. [2022-11-02 20:36:30,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3271 to 3160. [2022-11-02 20:36:30,318 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) [2022-11-02 20:36:30,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4580 transitions. [2022-11-02 20:36:30,348 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4580 transitions. Word has length 86 [2022-11-02 20:36:30,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:30,351 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4580 transitions. [2022-11-02 20:36:30,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 20:36:30,352 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4580 transitions. [2022-11-02 20:36:30,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-02 20:36:30,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:30,365 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:36:30,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:36:30,369 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:36:30,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:30,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1699374466, now seen corresponding path program 1 times [2022-11-02 20:36:30,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:30,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611410755] [2022-11-02 20:36:30,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:30,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:31,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:36:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:31,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:36:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:31,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:36:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:31,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:36:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:31,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 20:36:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:31,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:36:31,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:31,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 20:36:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:31,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 20:36:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:31,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:36:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:31,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-02 20:36:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:31,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-02 20:36:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:31,386 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-02 20:36:31,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:31,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611410755] [2022-11-02 20:36:31,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611410755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:31,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:31,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:36:31,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789488014] [2022-11-02 20:36:31,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:31,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:36:31,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:31,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:36:31,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:36:31,390 INFO L87 Difference]: Start difference. First operand 3160 states and 4580 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 20:36:34,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:39,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:03,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:03,037 INFO L93 Difference]: Finished difference Result 16064 states and 24377 transitions. [2022-11-02 20:37:03,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:37:03,038 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2022-11-02 20:37:03,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:03,232 INFO L225 Difference]: With dead ends: 16064 [2022-11-02 20:37:03,232 INFO L226 Difference]: Without dead ends: 12928 [2022-11-02 20:37:03,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:37:03,259 INFO L413 NwaCegarLoop]: 3533 mSDtfsCounter, 10244 mSDsluCounter, 5950 mSDsCounter, 0 mSdLazyCounter, 4365 mSolverCounterSat, 3203 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10939 SdHoareTripleChecker+Valid, 9483 SdHoareTripleChecker+Invalid, 7570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3203 IncrementalHoareTripleChecker+Valid, 4365 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:03,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10939 Valid, 9483 Invalid, 7570 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3203 Valid, 4365 Invalid, 2 Unknown, 0 Unchecked, 30.5s Time] [2022-11-02 20:37:03,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12928 states. [2022-11-02 20:37:03,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12928 to 12522. [2022-11-02 20:37:03,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12522 states, 9275 states have (on average 1.3857681940700808) internal successors, (12853), 9509 states have internal predecessors, (12853), 2637 states have call successors, (2637), 598 states have call predecessors, (2637), 609 states have return successors, (3090), 2566 states have call predecessors, (3090), 2636 states have call successors, (3090) [2022-11-02 20:37:04,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12522 states to 12522 states and 18580 transitions. [2022-11-02 20:37:04,042 INFO L78 Accepts]: Start accepts. Automaton has 12522 states and 18580 transitions. Word has length 99 [2022-11-02 20:37:04,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:04,043 INFO L495 AbstractCegarLoop]: Abstraction has 12522 states and 18580 transitions. [2022-11-02 20:37:04,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 20:37:04,044 INFO L276 IsEmpty]: Start isEmpty. Operand 12522 states and 18580 transitions. [2022-11-02 20:37:04,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-02 20:37:04,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:04,048 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:04,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:37:04,048 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:04,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:04,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1667649466, now seen corresponding path program 1 times [2022-11-02 20:37:04,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:04,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254485314] [2022-11-02 20:37:04,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:04,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:04,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:37:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:04,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:37:04,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:04,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:37:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:04,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:37:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:04,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 20:37:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:04,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:37:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:04,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 20:37:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:04,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 20:37:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:04,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:37:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:05,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-02 20:37:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:05,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 20:37:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:05,025 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-02 20:37:05,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:05,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254485314] [2022-11-02 20:37:05,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254485314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:05,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:05,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:37:05,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563119789] [2022-11-02 20:37:05,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:05,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:37:05,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:05,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:37:05,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:37:05,036 INFO L87 Difference]: Start difference. First operand 12522 states and 18580 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 20:37:07,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:15,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:19,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:45,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:45,022 INFO L93 Difference]: Finished difference Result 63960 states and 101911 transitions. [2022-11-02 20:37:45,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:37:45,024 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 [2022-11-02 20:37:45,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:45,384 INFO L225 Difference]: With dead ends: 63960 [2022-11-02 20:37:45,385 INFO L226 Difference]: Without dead ends: 51462 [2022-11-02 20:37:45,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:37:45,527 INFO L413 NwaCegarLoop]: 3483 mSDtfsCounter, 7019 mSDsluCounter, 10417 mSDsCounter, 0 mSdLazyCounter, 6557 mSolverCounterSat, 1152 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7718 SdHoareTripleChecker+Valid, 13900 SdHoareTripleChecker+Invalid, 7711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1152 IncrementalHoareTripleChecker+Valid, 6557 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:45,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7718 Valid, 13900 Invalid, 7711 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1152 Valid, 6557 Invalid, 2 Unknown, 0 Unchecked, 37.7s Time] [2022-11-02 20:37:45,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51462 states. [2022-11-02 20:37:48,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51462 to 49930. [2022-11-02 20:37:48,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49930 states, 36989 states have (on average 1.3841141961123578) internal successors, (51197), 37909 states have internal predecessors, (51197), 10491 states have call successors, (10491), 2386 states have call predecessors, (10491), 2449 states have return successors, (15530), 10242 states have call predecessors, (15530), 10490 states have call successors, (15530) [2022-11-02 20:37:49,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49930 states to 49930 states and 77218 transitions. [2022-11-02 20:37:49,103 INFO L78 Accepts]: Start accepts. Automaton has 49930 states and 77218 transitions. Word has length 97 [2022-11-02 20:37:49,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:49,103 INFO L495 AbstractCegarLoop]: Abstraction has 49930 states and 77218 transitions. [2022-11-02 20:37:49,104 INFO L496 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) [2022-11-02 20:37:49,105 INFO L276 IsEmpty]: Start isEmpty. Operand 49930 states and 77218 transitions. [2022-11-02 20:37:49,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-02 20:37:49,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:49,107 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:49,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:37:49,108 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:49,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:49,109 INFO L85 PathProgramCache]: Analyzing trace with hash 956034598, now seen corresponding path program 1 times [2022-11-02 20:37:49,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:49,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026451279] [2022-11-02 20:37:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:49,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:49,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:37:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:49,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:37:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:49,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:37:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:49,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:37:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:49,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 20:37:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:49,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:37:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:49,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 20:37:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:49,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 20:37:49,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:49,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:37:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:49,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-02 20:37:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:49,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-02 20:37:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:49,823 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-02 20:37:49,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:49,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026451279] [2022-11-02 20:37:49,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026451279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:49,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:49,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:37:49,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227360139] [2022-11-02 20:37:49,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:49,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:37:49,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:49,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:37:49,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:37:49,827 INFO L87 Difference]: Start difference. First operand 49930 states and 77218 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 20:37:52,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:29,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:29,367 INFO L93 Difference]: Finished difference Result 255156 states and 447987 transitions. [2022-11-02 20:38:29,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:38:29,368 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2022-11-02 20:38:29,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:31,453 INFO L225 Difference]: With dead ends: 255156 [2022-11-02 20:38:31,453 INFO L226 Difference]: Without dead ends: 205250 [2022-11-02 20:38:32,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:38:32,134 INFO L413 NwaCegarLoop]: 3545 mSDtfsCounter, 7040 mSDsluCounter, 10105 mSDsCounter, 0 mSdLazyCounter, 6470 mSolverCounterSat, 1193 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7735 SdHoareTripleChecker+Valid, 13650 SdHoareTripleChecker+Invalid, 7664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1193 IncrementalHoareTripleChecker+Valid, 6470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:32,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7735 Valid, 13650 Invalid, 7664 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1193 Valid, 6470 Invalid, 1 Unknown, 0 Unchecked, 31.9s Time] [2022-11-02 20:38:32,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205250 states. [2022-11-02 20:38:42,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205250 to 199158. [2022-11-02 20:38:43,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199158 states, 147649 states have (on average 1.3826101091101193) internal successors, (204141), 151129 states have internal predecessors, (204141), 41771 states have call successors, (41771), 9506 states have call predecessors, (41771), 9737 states have return successors, (89364), 40794 states have call predecessors, (89364), 41770 states have call successors, (89364) [2022-11-02 20:38:45,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199158 states to 199158 states and 335276 transitions. [2022-11-02 20:38:45,687 INFO L78 Accepts]: Start accepts. Automaton has 199158 states and 335276 transitions. Word has length 96 [2022-11-02 20:38:45,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:45,688 INFO L495 AbstractCegarLoop]: Abstraction has 199158 states and 335276 transitions. [2022-11-02 20:38:45,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 20:38:45,688 INFO L276 IsEmpty]: Start isEmpty. Operand 199158 states and 335276 transitions. [2022-11-02 20:38:45,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-02 20:38:45,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:45,695 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:45,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:38:45,695 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:45,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:45,696 INFO L85 PathProgramCache]: Analyzing trace with hash 421984606, now seen corresponding path program 1 times [2022-11-02 20:38:45,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:38:45,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814331465] [2022-11-02 20:38:45,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:45,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:38:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:46,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:38:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:46,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:38:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:46,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:38:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:46,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:38:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:46,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 20:38:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:46,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:38:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:46,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 20:38:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:46,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 20:38:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:46,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:38:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:46,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-02 20:38:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:46,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-02 20:38:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:46,784 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-02 20:38:46,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:38:46,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814331465] [2022-11-02 20:38:46,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814331465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:46,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:46,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:38:46,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708971930] [2022-11-02 20:38:46,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:46,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:38:46,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:38:46,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:38:46,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:38:46,787 INFO L87 Difference]: Start difference. First operand 199158 states and 335276 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 20:38:49,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []