./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--unix--unix.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_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/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_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/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--unix--unix.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/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_fd147427-5bb6-4613-82c6-73829bf71c64/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 fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd --- 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 20:59:35,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:59:35,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:59:35,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:59:35,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:59:35,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:59:35,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:59:35,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:59:35,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:59:35,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:59:35,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:59:35,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:59:35,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:59:35,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:59:35,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:59:35,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:59:35,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:59:35,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:59:35,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:59:35,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:59:35,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:59:35,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:59:35,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:59:35,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:59:35,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:59:35,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:59:35,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:59:35,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:59:35,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:59:35,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:59:35,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:59:35,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:59:35,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:59:35,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:59:35,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:59:35,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:59:35,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:59:35,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:59:35,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:59:35,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:59:35,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:59:35,442 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:59:35,487 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:59:35,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:59:35,488 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:59:35,488 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:59:35,489 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:59:35,489 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:59:35,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:59:35,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:59:35,490 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:59:35,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:59:35,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:59:35,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:59:35,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:59:35,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:59:35,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:59:35,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:59:35,493 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:59:35,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:59:35,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:59:35,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:59:35,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:59:35,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:59:35,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:59:35,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:59:35,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:59:35,495 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:59:35,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:59:35,497 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:59:35,498 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:59:35,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:59:35,498 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_fd147427-5bb6-4613-82c6-73829bf71c64/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd [2022-11-02 20:59:35,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:59:35,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:59:35,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:59:35,838 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:59:35,839 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:59:35,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-11-02 20:59:35,912 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/data/c36023245/9c202c9d57864e3baf33a33408a113fa/FLAGa49805e0f [2022-11-02 20:59:37,021 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:59:37,022 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-11-02 20:59:37,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/data/c36023245/9c202c9d57864e3baf33a33408a113fa/FLAGa49805e0f [2022-11-02 20:59:37,368 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/data/c36023245/9c202c9d57864e3baf33a33408a113fa [2022-11-02 20:59:37,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:59:37,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:59:37,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:59:37,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:59:37,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:59:37,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:59:37" (1/1) ... [2022-11-02 20:59:37,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c113972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:37, skipping insertion in model container [2022-11-02 20:59:37,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:59:37" (1/1) ... [2022-11-02 20:59:37,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:59:37,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:59:38,325 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-11-02 20:59:38,326 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-11-02 20:59:39,136 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_fd147427-5bb6-4613-82c6-73829bf71c64/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-11-02 20:59:41,018 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-02 20:59:41,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:59:41,150 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:59:41,344 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-11-02 20:59:41,345 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-11-02 20:59:41,361 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_fd147427-5bb6-4613-82c6-73829bf71c64/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-11-02 20:59:41,805 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-02 20:59:41,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:59:41,998 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:59:41,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:41 WrapperNode [2022-11-02 20:59:41,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:59:41,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:59:42,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:59:42,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:59:42,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:41" (1/1) ... [2022-11-02 20:59:42,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:41" (1/1) ... [2022-11-02 20:59:42,441 INFO L138 Inliner]: procedures = 454, calls = 2280, calls flagged for inlining = 217, calls inlined = 215, statements flattened = 7339 [2022-11-02 20:59:42,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:59:42,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:59:42,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:59:42,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:59:42,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:41" (1/1) ... [2022-11-02 20:59:42,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:41" (1/1) ... [2022-11-02 20:59:42,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:41" (1/1) ... [2022-11-02 20:59:42,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:41" (1/1) ... [2022-11-02 20:59:42,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:41" (1/1) ... [2022-11-02 20:59:42,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:41" (1/1) ... [2022-11-02 20:59:42,748 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:41" (1/1) ... [2022-11-02 20:59:42,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:41" (1/1) ... [2022-11-02 20:59:42,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:59:42,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:59:42,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:59:42,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:59:42,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:41" (1/1) ... [2022-11-02 20:59:42,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:59:42,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:59:42,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:59:42,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:59:42,908 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-02 20:59:42,908 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-02 20:59:42,908 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-02 20:59:42,909 INFO L130 BoogieDeclarations]: Found specification of procedure unix_gc [2022-11-02 20:59:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_gc [2022-11-02 20:59:42,909 INFO L130 BoogieDeclarations]: Found specification of procedure unix_sysctl_unregister [2022-11-02 20:59:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_sysctl_unregister [2022-11-02 20:59:42,909 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-02 20:59:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-02 20:59:42,909 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2022-11-02 20:59:42,910 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2022-11-02 20:59:42,910 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-02 20:59:42,910 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-02 20:59:42,910 INFO L130 BoogieDeclarations]: Found specification of procedure sock_sndtimeo [2022-11-02 20:59:42,910 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_sndtimeo [2022-11-02 20:59:42,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-02 20:59:42,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-02 20:59:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:59:42,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:59:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_addr [2022-11-02 20:59:42,911 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_addr [2022-11-02 20:59:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_lock [2022-11-02 20:59:42,911 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_lock [2022-11-02 20:59:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure unix_set_peek_off [2022-11-02 20:59:42,912 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_set_peek_off [2022-11-02 20:59:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-02 20:59:42,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-02 20:59:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_disconnected [2022-11-02 20:59:42,912 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_disconnected [2022-11-02 20:59:42,913 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2022-11-02 20:59:42,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2022-11-02 20:59:42,913 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy [2022-11-02 20:59:42,913 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy [2022-11-02 20:59:42,913 INFO L130 BoogieDeclarations]: Found specification of procedure put_cmsg [2022-11-02 20:59:42,913 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cmsg [2022-11-02 20:59:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure unix_create1 [2022-11-02 20:59:42,914 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_create1 [2022-11-02 20:59:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_poll [2022-11-02 20:59:42,914 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_poll [2022-11-02 20:59:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-02 20:59:42,914 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-02 20:59:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-02 20:59:42,915 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-02 20:59:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure unix_recvq_full [2022-11-02 20:59:42,915 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_recvq_full [2022-11-02 20:59:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-02 20:59:42,915 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-02 20:59:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure unix_shutdown [2022-11-02 20:59:42,916 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_shutdown [2022-11-02 20:59:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-02 20:59:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure scan_children [2022-11-02 20:59:42,916 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_children [2022-11-02 20:59:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-02 20:59:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-02 20:59:42,917 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-02 20:59:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_fwd [2022-11-02 20:59:42,917 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_fwd [2022-11-02 20:59:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-02 20:59:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:59:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure unix_find_other [2022-11-02 20:59:42,918 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_find_other [2022-11-02 20:59:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure unix_scm_to_skb [2022-11-02 20:59:42,918 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_scm_to_skb [2022-11-02 20:59:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure scm_send [2022-11-02 20:59:42,918 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_send [2022-11-02 20:59:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure sk_set_socket [2022-11-02 20:59:42,919 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_set_socket [2022-11-02 20:59:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure unix_autobind [2022-11-02 20:59:42,919 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_autobind [2022-11-02 20:59:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-02 20:59:42,919 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-02 20:59:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_sock [2022-11-02 20:59:42,920 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_sock [2022-11-02 20:59:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2022-11-02 20:59:42,920 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2022-11-02 20:59:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 20:59:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure unix_mkname [2022-11-02 20:59:42,920 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_mkname [2022-11-02 20:59:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-02 20:59:42,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-02 20:59:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 20:59:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure sock_intr_errno [2022-11-02 20:59:42,921 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_intr_errno [2022-11-02 20:59:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:59:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_inc [2022-11-02 20:59:42,922 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_inc [2022-11-02 20:59:42,922 INFO L130 BoogieDeclarations]: Found specification of procedure unix_may_send [2022-11-02 20:59:42,922 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_may_send [2022-11-02 20:59:42,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 20:59:42,922 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 20:59:42,922 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-02 20:59:42,922 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-02 20:59:42,923 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2022-11-02 20:59:42,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2022-11-02 20:59:42,923 INFO L130 BoogieDeclarations]: Found specification of procedure unix_listen [2022-11-02 20:59:42,923 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_listen [2022-11-02 20:59:42,923 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2022-11-02 20:59:42,923 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2022-11-02 20:59:42,924 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-02 20:59:42,924 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-02 20:59:42,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-02 20:59:42,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-02 20:59:42,924 INFO L130 BoogieDeclarations]: Found specification of procedure seq_file_net [2022-11-02 20:59:42,924 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_file_net [2022-11-02 20:59:42,924 INFO L130 BoogieDeclarations]: Found specification of procedure kiocb_to_siocb [2022-11-02 20:59:42,925 INFO L138 BoogieDeclarations]: Found implementation of procedure kiocb_to_siocb [2022-11-02 20:59:42,925 INFO L130 BoogieDeclarations]: Found specification of procedure init_peercred [2022-11-02 20:59:42,925 INFO L138 BoogieDeclarations]: Found implementation of procedure init_peercred [2022-11-02 20:59:42,925 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-02 20:59:42,925 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-02 20:59:42,925 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-02 20:59:42,926 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-02 20:59:42,926 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_sendmsg [2022-11-02 20:59:42,926 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_sendmsg [2022-11-02 20:59:42,926 INFO L130 BoogieDeclarations]: Found specification of procedure unix_stream_connect [2022-11-02 20:59:42,926 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_stream_connect [2022-11-02 20:59:42,926 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2022-11-02 20:59:42,927 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2022-11-02 20:59:42,927 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_dec [2022-11-02 20:59:42,927 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_dec [2022-11-02 20:59:42,927 INFO L130 BoogieDeclarations]: Found specification of procedure unix_skb_len [2022-11-02 20:59:42,927 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_skb_len [2022-11-02 20:59:42,927 INFO L130 BoogieDeclarations]: Found specification of procedure sock_flag [2022-11-02 20:59:42,928 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_flag [2022-11-02 20:59:42,928 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_unlock [2022-11-02 20:59:42,928 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_unlock [2022-11-02 20:59:42,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:59:42,928 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-02 20:59:42,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-02 20:59:42,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:59:42,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:59:42,929 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-02 20:59:42,929 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:59:42,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:59:42,929 INFO L130 BoogieDeclarations]: Found specification of procedure unix_net_exit [2022-11-02 20:59:42,929 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_net_exit [2022-11-02 20:59:42,930 INFO L130 BoogieDeclarations]: Found specification of procedure unix_detach_fds [2022-11-02 20:59:42,930 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_detach_fds [2022-11-02 20:59:42,930 INFO L130 BoogieDeclarations]: Found specification of procedure touch_atime [2022-11-02 20:59:42,930 INFO L138 BoogieDeclarations]: Found implementation of procedure touch_atime [2022-11-02 20:59:42,930 INFO L130 BoogieDeclarations]: Found specification of procedure unix_seq_stop [2022-11-02 20:59:42,930 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_seq_stop [2022-11-02 20:59:42,930 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-02 20:59:42,931 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-02 20:59:42,931 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-02 20:59:42,931 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-02 20:59:42,931 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_iovec [2022-11-02 20:59:42,931 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_iovec [2022-11-02 20:59:42,931 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-02 20:59:42,931 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-02 20:59:42,932 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-02 20:59:42,932 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-02 20:59:42,932 INFO L130 BoogieDeclarations]: Found specification of procedure unix_accept [2022-11-02 20:59:42,932 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_accept [2022-11-02 20:59:42,932 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_recvmsg [2022-11-02 20:59:42,932 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_recvmsg [2022-11-02 20:59:42,932 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-02 20:59:42,933 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-02 20:59:42,933 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-02 20:59:42,933 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-02 20:59:42,933 INFO L130 BoogieDeclarations]: Found specification of procedure unix_wait_for_peer [2022-11-02 20:59:42,933 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_wait_for_peer [2022-11-02 20:59:42,933 INFO L130 BoogieDeclarations]: Found specification of procedure unix_hash_fold [2022-11-02 20:59:42,934 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_hash_fold [2022-11-02 20:59:42,934 INFO L130 BoogieDeclarations]: Found specification of procedure scan_inflight [2022-11-02 20:59:42,934 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_inflight [2022-11-02 20:59:42,934 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-02 20:59:42,934 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-02 20:59:42,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:59:42,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:59:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-02 20:59:42,935 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-02 20:59:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-02 20:59:42,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-02 20:59:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-11-02 20:59:42,935 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-11-02 20:59:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-11-02 20:59:42,936 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-11-02 20:59:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 20:59:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 20:59:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 20:59:42,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 20:59:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-11-02 20:59:42,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-11-02 20:59:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-02 20:59:42,937 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-02 20:59:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure unix_peer_get [2022-11-02 20:59:42,937 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_peer_get [2022-11-02 20:59:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure unix_bind [2022-11-02 20:59:42,937 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_bind [2022-11-02 20:59:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2022-11-02 20:59:42,938 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2022-11-02 20:59:42,938 INFO L130 BoogieDeclarations]: Found specification of procedure unix_copy_addr [2022-11-02 20:59:42,938 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_copy_addr [2022-11-02 20:59:42,938 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-02 20:59:42,938 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-02 20:59:42,938 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-02 20:59:42,938 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-02 20:59:42,939 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-02 20:59:42,939 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-02 20:59:42,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 20:59:42,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 20:59:42,939 INFO L130 BoogieDeclarations]: Found specification of procedure sock_poll_wait [2022-11-02 20:59:42,939 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_poll_wait [2022-11-02 20:59:42,939 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_find_socket_byname [2022-11-02 20:59:42,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_find_socket_byname [2022-11-02 20:59:42,940 INFO L130 BoogieDeclarations]: Found specification of procedure sock_net [2022-11-02 20:59:42,940 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_net [2022-11-02 20:59:42,940 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-02 20:59:42,940 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-02 20:59:42,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:59:42,941 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:59:42,941 INFO L130 BoogieDeclarations]: Found specification of procedure scm_recv [2022-11-02 20:59:42,941 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_recv [2022-11-02 20:59:42,941 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release [2022-11-02 20:59:42,941 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release [2022-11-02 20:59:42,941 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:59:42,941 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:59:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-11-02 20:59:42,942 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-11-02 20:59:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_getsockopt [2022-11-02 20:59:42,942 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_getsockopt [2022-11-02 20:59:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure sock_alloc_send_pskb [2022-11-02 20:59:42,942 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_alloc_send_pskb [2022-11-02 20:59:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:59:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset [2022-11-02 20:59:42,943 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset [2022-11-02 20:59:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-02 20:59:42,943 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-02 20:59:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure unix_get_socket [2022-11-02 20:59:42,943 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_get_socket [2022-11-02 20:59:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:59:42,944 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unhashed [2022-11-02 20:59:42,944 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unhashed [2022-11-02 20:59:42,944 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-02 20:59:42,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-02 20:59:42,944 INFO L130 BoogieDeclarations]: Found specification of procedure get_pid [2022-11-02 20:59:42,944 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pid [2022-11-02 20:59:42,944 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-11-02 20:59:42,945 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-11-02 20:59:42,945 INFO L130 BoogieDeclarations]: Found specification of procedure scm_set_cred [2022-11-02 20:59:42,945 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_set_cred [2022-11-02 20:59:42,945 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-02 20:59:42,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-02 20:59:42,946 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-02 20:59:42,946 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-02 20:59:42,946 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2022-11-02 20:59:42,946 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2022-11-02 20:59:42,946 INFO L130 BoogieDeclarations]: Found specification of procedure sk_wake_async [2022-11-02 20:59:42,946 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_wake_async [2022-11-02 20:59:42,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:59:42,947 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-02 20:59:42,947 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-02 20:59:42,947 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_add_creds [2022-11-02 20:59:42,947 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_add_creds [2022-11-02 20:59:42,947 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-02 20:59:42,947 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-02 20:59:42,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_free_datagram [2022-11-02 20:59:42,948 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_free_datagram [2022-11-02 20:59:42,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-02 20:59:42,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-02 20:59:42,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_from_iovec [2022-11-02 20:59:42,948 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_from_iovec [2022-11-02 20:59:42,949 INFO L130 BoogieDeclarations]: Found specification of procedure sock_prot_inuse_add [2022-11-02 20:59:42,949 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_prot_inuse_add [2022-11-02 20:59:42,949 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-02 20:59:42,949 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-02 20:59:42,949 INFO L130 BoogieDeclarations]: Found specification of procedure sk_next [2022-11-02 20:59:42,949 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_next [2022-11-02 20:59:42,949 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_insert_socket [2022-11-02 20:59:42,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_insert_socket [2022-11-02 20:59:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure sock_error [2022-11-02 20:59:42,950 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_error [2022-11-02 20:59:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_remove_socket [2022-11-02 20:59:42,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_remove_socket [2022-11-02 20:59:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure csum_partial [2022-11-02 20:59:42,950 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_partial [2022-11-02 20:59:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-02 20:59:42,951 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-02 20:59:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-02 20:59:42,951 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-02 20:59:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 20:59:42,951 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 20:59:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure scm_fp_dup [2022-11-02 20:59:42,952 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_fp_dup [2022-11-02 20:59:42,952 INFO L130 BoogieDeclarations]: Found specification of procedure security_unix_may_send [2022-11-02 20:59:42,952 INFO L138 BoogieDeclarations]: Found implementation of procedure security_unix_may_send [2022-11-02 20:59:42,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:59:42,952 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_mmap [2022-11-02 20:59:42,952 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_mmap [2022-11-02 20:59:42,952 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy_cred [2022-11-02 20:59:42,952 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy_cred [2022-11-02 20:59:42,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:59:42,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:59:42,953 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2022-11-02 20:59:42,953 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2022-11-02 20:59:42,953 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up_sync_key [2022-11-02 20:59:42,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up_sync_key [2022-11-02 20:59:42,953 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-11-02 20:59:42,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-11-02 20:59:42,954 INFO L130 BoogieDeclarations]: Found specification of procedure task_tgid [2022-11-02 20:59:42,954 INFO L138 BoogieDeclarations]: Found implementation of procedure task_tgid [2022-11-02 20:59:42,954 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-02 20:59:42,954 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-02 20:59:42,954 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-02 20:59:42,954 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-02 20:59:42,955 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_unix_gc [2022-11-02 20:59:42,955 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_unix_gc [2022-11-02 20:59:42,955 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-11-02 20:59:42,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-11-02 20:59:42,955 INFO L130 BoogieDeclarations]: Found specification of procedure unix_next_socket [2022-11-02 20:59:42,955 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_next_socket [2022-11-02 20:59:42,955 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_setsockopt [2022-11-02 20:59:42,956 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_setsockopt [2022-11-02 20:59:42,956 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_bwd [2022-11-02 20:59:42,956 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_bwd [2022-11-02 20:59:42,956 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-02 20:59:42,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-02 20:59:42,956 INFO L130 BoogieDeclarations]: Found specification of procedure unix_writable [2022-11-02 20:59:42,956 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_writable [2022-11-02 20:59:42,957 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-11-02 20:59:42,957 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-11-02 20:59:42,957 INFO L130 BoogieDeclarations]: Found specification of procedure unix_socketpair [2022-11-02 20:59:42,957 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_socketpair [2022-11-02 20:59:42,957 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_sendpage [2022-11-02 20:59:42,957 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_sendpage [2022-11-02 20:59:42,957 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-02 20:59:42,958 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-02 20:59:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure unix_getname [2022-11-02 20:59:42,958 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_getname [2022-11-02 20:59:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure unix_ioctl [2022-11-02 20:59:42,958 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_ioctl [2022-11-02 20:59:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:59:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_enable [2022-11-02 20:59:42,958 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_enable [2022-11-02 20:59:44,167 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:59:44,171 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:59:44,380 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 20:59:52,414 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:59:52,436 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:59:52,436 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:59:52,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:59:52 BoogieIcfgContainer [2022-11-02 20:59:52,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:59:52,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:59:52,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:59:52,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:59:52,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:59:37" (1/3) ... [2022-11-02 20:59:52,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff0f85c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:59:52, skipping insertion in model container [2022-11-02 20:59:52,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:41" (2/3) ... [2022-11-02 20:59:52,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff0f85c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:59:52, skipping insertion in model container [2022-11-02 20:59:52,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:59:52" (3/3) ... [2022-11-02 20:59:52,451 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-11-02 20:59:52,472 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:59:52,472 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:59:52,603 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:59:52,612 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;@3b3a4c33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:59:52,613 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:59:52,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 2739 states, 1884 states have (on average 1.3540339702760085) internal successors, (2551), 1986 states have internal predecessors, (2551), 697 states have call successors, (697), 157 states have call predecessors, (697), 156 states have return successors, (688), 672 states have call predecessors, (688), 688 states have call successors, (688) [2022-11-02 20:59:52,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-02 20:59:52,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:59:52,680 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:52,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:59:52,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:59:52,688 INFO L85 PathProgramCache]: Analyzing trace with hash 2586623, now seen corresponding path program 1 times [2022-11-02 20:59:52,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:59:52,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167754208] [2022-11-02 20:59:52,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:59:52,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:59:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:59:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:59:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:59:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:59:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 20:59:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:59:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 20:59:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 20:59:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:59:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-02 20:59:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 20:59:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 20:59:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-02 20:59:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:59:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-02 20:59:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-02 20:59:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 20:59:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-02 20:59:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:59:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:53,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 20:59:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:54,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-02 20:59:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:54,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-02 20:59:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:54,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-02 20:59:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:54,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-02 20:59:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:54,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-02 20:59:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:54,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-02 20:59:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:54,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-02 20:59:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:54,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-02 20:59:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:54,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-02 20:59:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:54,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-02 20:59:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:54,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-02 20:59:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:54,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-11-02 20:59:54,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:59:54,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167754208] [2022-11-02 20:59:54,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167754208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:59:54,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:59:54,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:59:54,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773206363] [2022-11-02 20:59:54,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:59:54,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:59:54,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:59:54,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:59:54,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:59:54,214 INFO L87 Difference]: Start difference. First operand has 2739 states, 1884 states have (on average 1.3540339702760085) internal successors, (2551), 1986 states have internal predecessors, (2551), 697 states have call successors, (697), 157 states have call predecessors, (697), 156 states have return successors, (688), 672 states have call predecessors, (688), 688 states have call successors, (688) Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-02 21:00:04,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:00:04,952 INFO L93 Difference]: Finished difference Result 8240 states and 12109 transitions. [2022-11-02 21:00:04,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:00:04,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 213 [2022-11-02 21:00:04,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:00:05,049 INFO L225 Difference]: With dead ends: 8240 [2022-11-02 21:00:05,050 INFO L226 Difference]: Without dead ends: 5453 [2022-11-02 21:00:05,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:00:05,088 INFO L413 NwaCegarLoop]: 4221 mSDtfsCounter, 4813 mSDsluCounter, 3941 mSDsCounter, 0 mSdLazyCounter, 3182 mSolverCounterSat, 1813 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5391 SdHoareTripleChecker+Valid, 8162 SdHoareTripleChecker+Invalid, 4995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1813 IncrementalHoareTripleChecker+Valid, 3182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-02 21:00:05,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5391 Valid, 8162 Invalid, 4995 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1813 Valid, 3182 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-11-02 21:00:05,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5453 states. [2022-11-02 21:00:05,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5453 to 5216. [2022-11-02 21:00:05,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5216 states, 3608 states have (on average 1.3450665188470066) internal successors, (4853), 3783 states have internal predecessors, (4853), 1299 states have call successors, (1299), 309 states have call predecessors, (1299), 308 states have return successors, (1298), 1269 states have call predecessors, (1298), 1298 states have call successors, (1298) [2022-11-02 21:00:05,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 5216 states and 7450 transitions. [2022-11-02 21:00:05,661 INFO L78 Accepts]: Start accepts. Automaton has 5216 states and 7450 transitions. Word has length 213 [2022-11-02 21:00:05,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:00:05,662 INFO L495 AbstractCegarLoop]: Abstraction has 5216 states and 7450 transitions. [2022-11-02 21:00:05,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-02 21:00:05,663 INFO L276 IsEmpty]: Start isEmpty. Operand 5216 states and 7450 transitions. [2022-11-02 21:00:05,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-02 21:00:05,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:00:05,685 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:00:05,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:00:05,686 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:00:05,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:05,687 INFO L85 PathProgramCache]: Analyzing trace with hash 517155252, now seen corresponding path program 1 times [2022-11-02 21:00:05,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:05,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604232597] [2022-11-02 21:00:05,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:05,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:00:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 21:00:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 21:00:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 21:00:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:00:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:00:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 21:00:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 21:00:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 21:00:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-02 21:00:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 21:00:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 21:00:06,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-02 21:00:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 21:00:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-02 21:00:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-02 21:00:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 21:00:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-02 21:00:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 21:00:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 21:00:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-02 21:00:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-02 21:00:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-02 21:00:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-02 21:00:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-02 21:00:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-02 21:00:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-02 21:00:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-02 21:00:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-02 21:00:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-02 21:00:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-02 21:00:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:06,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-11-02 21:00:06,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:06,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604232597] [2022-11-02 21:00:06,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604232597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:06,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:06,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:00:06,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790777687] [2022-11-02 21:00:06,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:06,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:00:06,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:06,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:00:06,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:00:06,561 INFO L87 Difference]: Start difference. First operand 5216 states and 7450 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-02 21:00:15,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:00:15,770 INFO L93 Difference]: Finished difference Result 15255 states and 21875 transitions. [2022-11-02 21:00:15,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:00:15,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 214 [2022-11-02 21:00:15,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:00:15,853 INFO L225 Difference]: With dead ends: 15255 [2022-11-02 21:00:15,854 INFO L226 Difference]: Without dead ends: 10098 [2022-11-02 21:00:15,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:00:15,885 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 4445 mSDsluCounter, 3960 mSDsCounter, 0 mSdLazyCounter, 3142 mSolverCounterSat, 1728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4967 SdHoareTripleChecker+Valid, 8220 SdHoareTripleChecker+Invalid, 4870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1728 IncrementalHoareTripleChecker+Valid, 3142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:00:15,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4967 Valid, 8220 Invalid, 4870 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1728 Valid, 3142 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-11-02 21:00:15,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10098 states. [2022-11-02 21:00:16,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10098 to 9627. [2022-11-02 21:00:16,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9627 states, 6657 states have (on average 1.3406940063091484) internal successors, (8925), 6996 states have internal predecessors, (8925), 2357 states have call successors, (2357), 613 states have call predecessors, (2357), 612 states have return successors, (2356), 2301 states have call predecessors, (2356), 2356 states have call successors, (2356) [2022-11-02 21:00:16,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9627 states to 9627 states and 13638 transitions. [2022-11-02 21:00:16,417 INFO L78 Accepts]: Start accepts. Automaton has 9627 states and 13638 transitions. Word has length 214 [2022-11-02 21:00:16,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:00:16,418 INFO L495 AbstractCegarLoop]: Abstraction has 9627 states and 13638 transitions. [2022-11-02 21:00:16,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-02 21:00:16,419 INFO L276 IsEmpty]: Start isEmpty. Operand 9627 states and 13638 transitions. [2022-11-02 21:00:16,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-02 21:00:16,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:00:16,425 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:00:16,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:00:16,425 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:00:16,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:16,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1347570925, now seen corresponding path program 1 times [2022-11-02 21:00:16,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:16,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334113728] [2022-11-02 21:00:16,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:16,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:16,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:00:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:16,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 21:00:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:16,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 21:00:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:16,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 21:00:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:16,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:00:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:16,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:00:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:16,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 21:00:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:16,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 21:00:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:16,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 21:00:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:16,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-02 21:00:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:16,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 21:00:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:16,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 21:00:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:16,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-02 21:00:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:16,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 21:00:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-02 21:00:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-02 21:00:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 21:00:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-02 21:00:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 21:00:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 21:00:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-02 21:00:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-02 21:00:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-02 21:00:17,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-02 21:00:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-02 21:00:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-02 21:00:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-02 21:00:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-02 21:00:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-02 21:00:17,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-02 21:00:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-02 21:00:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:17,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-11-02 21:00:17,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:17,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334113728] [2022-11-02 21:00:17,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334113728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:17,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:17,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:00:17,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985138861] [2022-11-02 21:00:17,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:17,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:00:17,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:17,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:00:17,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:00:17,181 INFO L87 Difference]: Start difference. First operand 9627 states and 13638 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-02 21:00:26,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:00:26,538 INFO L93 Difference]: Finished difference Result 27017 states and 38426 transitions. [2022-11-02 21:00:26,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:00:26,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 220 [2022-11-02 21:00:26,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:00:26,679 INFO L225 Difference]: With dead ends: 27017 [2022-11-02 21:00:26,679 INFO L226 Difference]: Without dead ends: 17449 [2022-11-02 21:00:26,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:00:26,738 INFO L413 NwaCegarLoop]: 6214 mSDtfsCounter, 4090 mSDsluCounter, 4602 mSDsCounter, 0 mSdLazyCounter, 3571 mSolverCounterSat, 1382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4669 SdHoareTripleChecker+Valid, 10816 SdHoareTripleChecker+Invalid, 4953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1382 IncrementalHoareTripleChecker+Valid, 3571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:00:26,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4669 Valid, 10816 Invalid, 4953 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1382 Valid, 3571 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-11-02 21:00:26,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17449 states. [2022-11-02 21:00:27,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17449 to 16622. [2022-11-02 21:00:27,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16622 states, 11543 states have (on average 1.3377804730139478) internal successors, (15442), 12127 states have internal predecessors, (15442), 3985 states have call successors, (3985), 1094 states have call predecessors, (3985), 1093 states have return successors, (3984), 3889 states have call predecessors, (3984), 3984 states have call successors, (3984) [2022-11-02 21:00:27,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16622 states to 16622 states and 23411 transitions. [2022-11-02 21:00:27,747 INFO L78 Accepts]: Start accepts. Automaton has 16622 states and 23411 transitions. Word has length 220 [2022-11-02 21:00:27,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:00:27,749 INFO L495 AbstractCegarLoop]: Abstraction has 16622 states and 23411 transitions. [2022-11-02 21:00:27,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-02 21:00:27,750 INFO L276 IsEmpty]: Start isEmpty. Operand 16622 states and 23411 transitions. [2022-11-02 21:00:27,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-11-02 21:00:27,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:00:27,774 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:00:27,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:00:27,775 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:00:27,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:27,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1471317705, now seen corresponding path program 1 times [2022-11-02 21:00:27,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:27,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921510402] [2022-11-02 21:00:27,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:27,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:28,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:00:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:28,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 21:00:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:28,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 21:00:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:28,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 21:00:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:28,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:00:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:28,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:00:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:28,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 21:00:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:28,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 21:00:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:28,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 21:00:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-02 21:00:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 21:00:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 21:00:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-02 21:00:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 21:00:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-02 21:00:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-02 21:00:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 21:00:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-02 21:00:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 21:00:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 21:00:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-02 21:00:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-02 21:00:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-02 21:00:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-02 21:00:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-02 21:00:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-02 21:00:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-02 21:00:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-02 21:00:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-02 21:00:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-02 21:00:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-02 21:00:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-02 21:00:29,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-02 21:00:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-02 21:00:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-02 21:00:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-11-02 21:00:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-02 21:00:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-02 21:00:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-11-02 21:00:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-02 21:00:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-02 21:00:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-02 21:00:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-02 21:00:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-02 21:00:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-02 21:00:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-11-02 21:00:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-11-02 21:00:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-11-02 21:00:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-11-02 21:00:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-11-02 21:00:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-11-02 21:00:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-11-02 21:00:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-11-02 21:00:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:29,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4906 trivial. 0 not checked. [2022-11-02 21:00:29,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:29,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921510402] [2022-11-02 21:00:29,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921510402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:29,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:29,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:00:29,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046554282] [2022-11-02 21:00:29,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:29,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:00:29,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:29,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:00:29,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:00:29,695 INFO L87 Difference]: Start difference. First operand 16622 states and 23411 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (57), 4 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2022-11-02 21:00:37,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:00:37,704 INFO L93 Difference]: Finished difference Result 29009 states and 41217 transitions. [2022-11-02 21:00:37,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:00:37,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (57), 4 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 369 [2022-11-02 21:00:37,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:00:37,915 INFO L225 Difference]: With dead ends: 29009 [2022-11-02 21:00:37,916 INFO L226 Difference]: Without dead ends: 29006 [2022-11-02 21:00:37,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:00:37,939 INFO L413 NwaCegarLoop]: 4312 mSDtfsCounter, 3961 mSDsluCounter, 3643 mSDsCounter, 0 mSdLazyCounter, 2810 mSolverCounterSat, 1483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4315 SdHoareTripleChecker+Valid, 7955 SdHoareTripleChecker+Invalid, 4293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1483 IncrementalHoareTripleChecker+Valid, 2810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:00:37,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4315 Valid, 7955 Invalid, 4293 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1483 Valid, 2810 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-02 21:00:37,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29006 states. [2022-11-02 21:00:39,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29006 to 27409. [2022-11-02 21:00:39,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27409 states, 19383 states have (on average 1.343600061909921) internal successors, (26043), 20255 states have internal predecessors, (26043), 6038 states have call successors, (6038), 1964 states have call predecessors, (6038), 1987 states have return successors, (6345), 5863 states have call predecessors, (6345), 6037 states have call successors, (6345) [2022-11-02 21:00:39,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27409 states to 27409 states and 38426 transitions. [2022-11-02 21:00:39,348 INFO L78 Accepts]: Start accepts. Automaton has 27409 states and 38426 transitions. Word has length 369 [2022-11-02 21:00:39,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:00:39,350 INFO L495 AbstractCegarLoop]: Abstraction has 27409 states and 38426 transitions. [2022-11-02 21:00:39,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (57), 4 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2022-11-02 21:00:39,350 INFO L276 IsEmpty]: Start isEmpty. Operand 27409 states and 38426 transitions. [2022-11-02 21:00:39,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2022-11-02 21:00:39,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:00:39,430 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:00:39,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:00:39,431 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:00:39,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:39,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1015206311, now seen corresponding path program 1 times [2022-11-02 21:00:39,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:39,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977862599] [2022-11-02 21:00:39,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:39,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:39,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:00:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:39,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 21:00:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:39,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 21:00:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:39,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 21:00:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:00:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:00:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 21:00:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 21:00:40,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 21:00:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-02 21:00:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 21:00:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 21:00:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-02 21:00:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 21:00:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-02 21:00:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-02 21:00:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 21:00:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-02 21:00:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 21:00:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 21:00:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-02 21:00:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-02 21:00:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-02 21:00:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-02 21:00:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-02 21:00:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-02 21:00:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-02 21:00:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-02 21:00:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-02 21:00:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-02 21:00:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-02 21:00:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-02 21:00:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-02 21:00:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-02 21:00:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-02 21:00:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-11-02 21:00:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-02 21:00:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-02 21:00:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-11-02 21:00:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-02 21:00:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-02 21:00:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-02 21:00:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-02 21:00:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-02 21:00:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-02 21:00:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-11-02 21:00:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-11-02 21:00:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-11-02 21:00:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-11-02 21:00:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-11-02 21:00:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-11-02 21:00:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:00:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-11-02 21:00:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-11-02 21:00:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-11-02 21:00:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,541 INFO L134 CoverageAnalysis]: Checked inductivity of 4919 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4911 trivial. 0 not checked. [2022-11-02 21:00:40,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:40,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977862599] [2022-11-02 21:00:40,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977862599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:40,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:40,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:00:40,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985271179] [2022-11-02 21:00:40,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:40,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:00:40,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:40,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:00:40,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:00:40,544 INFO L87 Difference]: Start difference. First operand 27409 states and 38426 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (59), 4 states have call predecessors, (59), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-02 21:00:42,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:00:58,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:00:58,740 INFO L93 Difference]: Finished difference Result 86833 states and 123019 transitions. [2022-11-02 21:00:58,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:00:58,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (59), 4 states have call predecessors, (59), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 396 [2022-11-02 21:00:58,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:00:59,150 INFO L225 Difference]: With dead ends: 86833 [2022-11-02 21:00:59,150 INFO L226 Difference]: Without dead ends: 59492 [2022-11-02 21:00:59,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:00:59,297 INFO L413 NwaCegarLoop]: 6926 mSDtfsCounter, 5320 mSDsluCounter, 7424 mSDsCounter, 0 mSdLazyCounter, 5672 mSolverCounterSat, 3006 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5953 SdHoareTripleChecker+Valid, 14350 SdHoareTripleChecker+Invalid, 8678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3006 IncrementalHoareTripleChecker+Valid, 5672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-11-02 21:00:59,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5953 Valid, 14350 Invalid, 8678 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3006 Valid, 5672 Invalid, 0 Unknown, 0 Unchecked, 14.7s Time] [2022-11-02 21:00:59,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59492 states. [2022-11-02 21:01:03,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59492 to 56839. [2022-11-02 21:01:03,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56839 states, 40193 states have (on average 1.3439156071952827) internal successors, (54016), 42145 states have internal predecessors, (54016), 12502 states have call successors, (12502), 3926 states have call predecessors, (12502), 4143 states have return successors, (13443), 12193 states have call predecessors, (13443), 12501 states have call successors, (13443) [2022-11-02 21:01:04,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56839 states to 56839 states and 79961 transitions. [2022-11-02 21:01:04,206 INFO L78 Accepts]: Start accepts. Automaton has 56839 states and 79961 transitions. Word has length 396 [2022-11-02 21:01:04,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:01:04,207 INFO L495 AbstractCegarLoop]: Abstraction has 56839 states and 79961 transitions. [2022-11-02 21:01:04,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (59), 4 states have call predecessors, (59), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-02 21:01:04,208 INFO L276 IsEmpty]: Start isEmpty. Operand 56839 states and 79961 transitions. [2022-11-02 21:01:04,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2022-11-02 21:01:04,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:01:04,326 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:04,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:01:04,326 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:01:04,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:04,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1034181531, now seen corresponding path program 1 times [2022-11-02 21:01:04,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:04,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509230118] [2022-11-02 21:01:04,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:04,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:01:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 21:01:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 21:01:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 21:01:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:01:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:01:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 21:01:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 21:01:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 21:01:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-02 21:01:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 21:01:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 21:01:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-02 21:01:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 21:01:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-02 21:01:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-02 21:01:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 21:01:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-02 21:01:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 21:01:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 21:01:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-02 21:01:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-02 21:01:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-02 21:01:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-02 21:01:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-02 21:01:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-02 21:01:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-02 21:01:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-02 21:01:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-02 21:01:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-02 21:01:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-02 21:01:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-02 21:01:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-02 21:01:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-02 21:01:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-02 21:01:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-11-02 21:01:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-02 21:01:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-02 21:01:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-11-02 21:01:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-02 21:01:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-02 21:01:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-02 21:01:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-02 21:01:08,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-02 21:01:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-02 21:01:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-11-02 21:01:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-11-02 21:01:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-11-02 21:01:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-11-02 21:01:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-11-02 21:01:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-11-02 21:01:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:01:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-11-02 21:01:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-11-02 21:01:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-11-02 21:01:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:08,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4919 backedges. 76 proven. 37 refuted. 0 times theorem prover too weak. 4806 trivial. 0 not checked. [2022-11-02 21:01:08,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:08,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509230118] [2022-11-02 21:01:08,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509230118] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:01:08,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798428694] [2022-11-02 21:01:08,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:08,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:01:08,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:08,735 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:01:08,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:01:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:10,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 4044 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:01:10,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:10,461 INFO L134 CoverageAnalysis]: Checked inductivity of 4919 backedges. 2475 proven. 0 refuted. 0 times theorem prover too weak. 2444 trivial. 0 not checked. [2022-11-02 21:01:10,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:01:10,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798428694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:10,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:01:10,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2022-11-02 21:01:10,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664936082] [2022-11-02 21:01:10,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:10,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:01:10,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:10,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:01:10,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-11-02 21:01:10,464 INFO L87 Difference]: Start difference. First operand 56839 states and 79961 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-02 21:01:15,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:01:15,057 INFO L93 Difference]: Finished difference Result 113742 states and 159987 transitions. [2022-11-02 21:01:15,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:01:15,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 396 [2022-11-02 21:01:15,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:01:15,399 INFO L225 Difference]: With dead ends: 113742 [2022-11-02 21:01:15,399 INFO L226 Difference]: Without dead ends: 56811 [2022-11-02 21:01:15,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-11-02 21:01:15,653 INFO L413 NwaCegarLoop]: 3886 mSDtfsCounter, 6 mSDsluCounter, 11653 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15539 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-02 21:01:15,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 15539 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-02 21:01:15,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56811 states. [2022-11-02 21:01:19,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56811 to 56699. [2022-11-02 21:01:19,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56699 states, 40053 states have (on average 1.3435198362170124) internal successors, (53812), 42005 states have internal predecessors, (53812), 12502 states have call successors, (12502), 3926 states have call predecessors, (12502), 4143 states have return successors, (13443), 12193 states have call predecessors, (13443), 12501 states have call successors, (13443) [2022-11-02 21:01:19,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56699 states to 56699 states and 79757 transitions. [2022-11-02 21:01:19,523 INFO L78 Accepts]: Start accepts. Automaton has 56699 states and 79757 transitions. Word has length 396 [2022-11-02 21:01:19,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:01:19,524 INFO L495 AbstractCegarLoop]: Abstraction has 56699 states and 79757 transitions. [2022-11-02 21:01:19,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-02 21:01:19,525 INFO L276 IsEmpty]: Start isEmpty. Operand 56699 states and 79757 transitions. [2022-11-02 21:01:19,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-11-02 21:01:19,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:01:19,630 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:19,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:19,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-02 21:01:19,858 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:01:19,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:19,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1707498606, now seen corresponding path program 1 times [2022-11-02 21:01:19,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:19,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975914207] [2022-11-02 21:01:19,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:19,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:01:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 21:01:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 21:01:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 21:01:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:01:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:01:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 21:01:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 21:01:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 21:01:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-02 21:01:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 21:01:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 21:01:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-02 21:01:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 21:01:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-02 21:01:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-02 21:01:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 21:01:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-02 21:01:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 21:01:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 21:01:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-02 21:01:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-02 21:01:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-02 21:01:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-02 21:01:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-02 21:01:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-02 21:01:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-02 21:01:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-02 21:01:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-02 21:01:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-02 21:01:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-02 21:01:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-02 21:01:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-02 21:01:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-02 21:01:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-02 21:01:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-11-02 21:01:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-02 21:01:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-11-02 21:01:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-11-02 21:01:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-11-02 21:01:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-11-02 21:01:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-11-02 21:01:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-11-02 21:01:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-11-02 21:01:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-11-02 21:01:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-11-02 21:01:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-11-02 21:01:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-11-02 21:01:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-11-02 21:01:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-11-02 21:01:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-11-02 21:01:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:01:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-11-02 21:01:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:23,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2022-11-02 21:01:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:24,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2022-11-02 21:01:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 4915 backedges. 96 proven. 13 refuted. 0 times theorem prover too weak. 4806 trivial. 0 not checked. [2022-11-02 21:01:24,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:24,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975914207] [2022-11-02 21:01:24,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975914207] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:01:24,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510135522] [2022-11-02 21:01:24,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:24,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:01:24,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:24,018 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:01:24,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd147427-5bb6-4613-82c6-73829bf71c64/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 21:01:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:26,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 4067 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-02 21:01:26,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:28,321 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-02 21:01:28,329 INFO L134 CoverageAnalysis]: Checked inductivity of 4915 backedges. 301 proven. 6 refuted. 0 times theorem prover too weak. 4608 trivial. 0 not checked. [2022-11-02 21:01:28,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:01:28,608 INFO L356 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-02 21:01:28,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2022-11-02 21:01:29,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4915 backedges. 96 proven. 13 refuted. 0 times theorem prover too weak. 4806 trivial. 0 not checked. [2022-11-02 21:01:29,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510135522] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:01:29,622 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:01:29,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 12] total 30 [2022-11-02 21:01:29,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829810376] [2022-11-02 21:01:29,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:01:29,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-02 21:01:29,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:29,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-02 21:01:29,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=781, Unknown=0, NotChecked=0, Total=870 [2022-11-02 21:01:29,627 INFO L87 Difference]: Start difference. First operand 56699 states and 79757 transitions. Second operand has 30 states, 30 states have (on average 7.2) internal successors, (216), 23 states have internal predecessors, (216), 14 states have call successors, (169), 11 states have call predecessors, (169), 9 states have return successors, (112), 13 states have call predecessors, (112), 11 states have call successors, (112)