./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64c226b5-19da-4d44-9c87-f53239c16cc4/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64c226b5-19da-4d44-9c87-f53239c16cc4/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_64c226b5-19da-4d44-9c87-f53239c16cc4/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64c226b5-19da-4d44-9c87-f53239c16cc4/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64c226b5-19da-4d44-9c87-f53239c16cc4/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_64c226b5-19da-4d44-9c87-f53239c16cc4/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 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:35:48,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:35:48,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:35:48,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:35:48,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:35:48,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:35:48,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:35:48,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:35:48,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:35:48,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:35:48,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:35:48,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:35:48,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:35:48,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:35:48,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:35:48,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:35:48,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:35:48,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:35:48,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:35:48,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:35:48,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:35:48,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:35:48,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:35:48,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:35:48,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:35:48,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:35:48,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:35:48,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:35:48,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:35:48,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:35:48,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:35:48,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:35:48,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:35:48,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:35:48,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:35:48,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:35:48,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:35:48,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:35:48,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:35:48,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:35:48,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:35:48,272 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64c226b5-19da-4d44-9c87-f53239c16cc4/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:35:48,313 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:35:48,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:35:48,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:35:48,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:35:48,328 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:35:48,328 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:35:48,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:35:48,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:35:48,330 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:35:48,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:35:48,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:35:48,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:35:48,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:35:48,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:35:48,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:35:48,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:35:48,333 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:35:48,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:35:48,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:35:48,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:35:48,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:35:48,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:35:48,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:35:48,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:35:48,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:35:48,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:35:48,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:35:48,337 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:35:48,338 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:35:48,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:35:48,338 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_64c226b5-19da-4d44-9c87-f53239c16cc4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64c226b5-19da-4d44-9c87-f53239c16cc4/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 [2022-11-02 20:35:48,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:35:48,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:35:48,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:35:48,666 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:35:48,667 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:35:48,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64c226b5-19da-4d44-9c87-f53239c16cc4/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-11-02 20:35:48,773 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64c226b5-19da-4d44-9c87-f53239c16cc4/bin/uautomizer-Dbtcem3rbc/data/6efe1d6b9/b546ce59885642069d5f01c46d8b8ff7/FLAGbeb31cbaa [2022-11-02 20:35:49,802 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:35:49,804 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64c226b5-19da-4d44-9c87-f53239c16cc4/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-11-02 20:35:49,861 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64c226b5-19da-4d44-9c87-f53239c16cc4/bin/uautomizer-Dbtcem3rbc/data/6efe1d6b9/b546ce59885642069d5f01c46d8b8ff7/FLAGbeb31cbaa [2022-11-02 20:35:50,165 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64c226b5-19da-4d44-9c87-f53239c16cc4/bin/uautomizer-Dbtcem3rbc/data/6efe1d6b9/b546ce59885642069d5f01c46d8b8ff7 [2022-11-02 20:35:50,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:35:50,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:35:50,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:35:50,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:35:50,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:35:50,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:35:50" (1/1) ... [2022-11-02 20:35:50,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ccfa3c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:50, skipping insertion in model container [2022-11-02 20:35:50,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:35:50" (1/1) ... [2022-11-02 20:35:50,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:35:50,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:35:53,420 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_64c226b5-19da-4d44-9c87-f53239c16cc4/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-11-02 20:35:53,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:35:53,545 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:35:54,389 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_64c226b5-19da-4d44-9c87-f53239c16cc4/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-11-02 20:35:54,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:35:54,526 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:35:54,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:54 WrapperNode [2022-11-02 20:35:54,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:35:54,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:35:54,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:35:54,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:35:54,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:54" (1/1) ... [2022-11-02 20:35:54,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:54" (1/1) ... [2022-11-02 20:35:55,064 INFO L138 Inliner]: procedures = 357, calls = 3641, calls flagged for inlining = 134, calls inlined = 130, statements flattened = 6994 [2022-11-02 20:35:55,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:35:55,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:35:55,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:35:55,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:35:55,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:54" (1/1) ... [2022-11-02 20:35:55,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:54" (1/1) ... [2022-11-02 20:35:55,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:54" (1/1) ... [2022-11-02 20:35:55,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:54" (1/1) ... [2022-11-02 20:35:55,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:54" (1/1) ... [2022-11-02 20:35:55,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:54" (1/1) ... [2022-11-02 20:35:55,549 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:54" (1/1) ... [2022-11-02 20:35:55,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:54" (1/1) ... [2022-11-02 20:35:55,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:35:55,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:35:55,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:35:55,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:35:55,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:54" (1/1) ... [2022-11-02 20:35:55,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:35:55,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64c226b5-19da-4d44-9c87-f53239c16cc4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:35:55,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64c226b5-19da-4d44-9c87-f53239c16cc4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:35:55,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64c226b5-19da-4d44-9c87-f53239c16cc4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:35:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-02 20:35:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-02 20:35:55,760 INFO L130 BoogieDeclarations]: Found specification of procedure ring_desc_base [2022-11-02 20:35:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_desc_base [2022-11-02 20:35:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure thunderbolt_shutdown_and_free [2022-11-02 20:35:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure thunderbolt_shutdown_and_free [2022-11-02 20:35:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_shutdown [2022-11-02 20:35:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_shutdown [2022-11-02 20:35:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-02 20:35:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-02 20:35:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_port [2022-11-02 20:35:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_port [2022-11-02 20:35:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_active [2022-11-02 20:35:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_active [2022-11-02 20:35:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail_init [2022-11-02 20:35:55,763 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail_init [2022-11-02 20:35:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 20:35:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 20:35:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 20:35:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 20:35:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-02 20:35:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-02 20:35:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_read_n [2022-11-02 20:35:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_read_n [2022-11-02 20:35:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:35:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:35:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_tx [2022-11-02 20:35:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_tx [2022-11-02 20:35:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_read [2022-11-02 20:35:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_read [2022-11-02 20:35:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure ring_work [2022-11-02 20:35:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_work [2022-11-02 20:35:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_get_drom_offset [2022-11-02 20:35:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_get_drom_offset [2022-11-02 20:35:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-11-02 20:35:55,767 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-11-02 20:35:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_free [2022-11-02 20:35:55,767 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_free [2022-11-02 20:35:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-02 20:35:55,768 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-02 20:35:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite16desc [2022-11-02 20:35:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite16desc [2022-11-02 20:35:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32options [2022-11-02 20:35:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32options [2022-11-02 20:35:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_free [2022-11-02 20:35:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_free [2022-11-02 20:35:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_active [2022-11-02 20:35:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_active [2022-11-02 20:35:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-02 20:35:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-02 20:35:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure tb_find_cap [2022-11-02 20:35:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_find_cap [2022-11-02 20:35:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-02 20:35:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-02 20:35:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 20:35:55,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 20:35:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_deactivate [2022-11-02 20:35:55,775 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_deactivate [2022-11-02 20:35:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_write [2022-11-02 20:35:55,776 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_write [2022-11-02 20:35:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx_submit [2022-11-02 20:35:55,776 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx_submit [2022-11-02 20:35:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_disable_interrupts [2022-11-02 20:35:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_disable_interrupts [2022-11-02 20:35:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-02 20:35:55,777 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-02 20:35:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure get_route [2022-11-02 20:35:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure get_route [2022-11-02 20:35:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure check_header [2022-11-02 20:35:55,778 INFO L138 BoogieDeclarations]: Found implementation of procedure check_header [2022-11-02 20:35:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:35:55,779 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:35:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_alloc [2022-11-02 20:35:55,780 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_alloc [2022-11-02 20:35:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-02 20:35:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-02 20:35:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_suspend_noirq [2022-11-02 20:35:55,781 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_suspend_noirq [2022-11-02 20:35:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_read [2022-11-02 20:35:55,782 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_read [2022-11-02 20:35:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_port_active [2022-11-02 20:35:55,782 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_port_active [2022-11-02 20:35:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure tb_activate_pcie_devices [2022-11-02 20:35:55,782 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_activate_pcie_devices [2022-11-02 20:35:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_suspend [2022-11-02 20:35:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_suspend [2022-11-02 20:35:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_alloc [2022-11-02 20:35:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_alloc [2022-11-02 20:35:55,783 INFO L130 BoogieDeclarations]: Found specification of procedure tb_drom_read_uid_only [2022-11-02 20:35:55,783 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_drom_read_uid_only [2022-11-02 20:35:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:35:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-02 20:35:55,785 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-02 20:35:55,785 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_write [2022-11-02 20:35:55,786 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_write [2022-11-02 20:35:55,786 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_activate [2022-11-02 20:35:55,787 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_activate [2022-11-02 20:35:55,787 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_interrupt_work [2022-11-02 20:35:55,787 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_interrupt_work [2022-11-02 20:35:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:35:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-02 20:35:55,789 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-02 20:35:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-02 20:35:55,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-02 20:35:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-02 20:35:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-02 20:35:55,790 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-11-02 20:35:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-11-02 20:35:55,790 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read_raw [2022-11-02 20:35:55,791 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read_raw [2022-11-02 20:35:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:35:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_long [2022-11-02 20:35:55,792 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_long [2022-11-02 20:35:55,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:35:55,792 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_set_unpplugged [2022-11-02 20:35:55,792 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_set_unpplugged [2022-11-02 20:35:55,792 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32desc [2022-11-02 20:35:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32desc [2022-11-02 20:35:55,794 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route_length [2022-11-02 20:35:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route_length [2022-11-02 20:35:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_resume_noirq [2022-11-02 20:35:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_resume_noirq [2022-11-02 20:35:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-02 20:35:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-02 20:35:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-02 20:35:55,801 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-02 20:35:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-02 20:35:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-02 20:35:55,808 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-02 20:35:55,808 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-02 20:35:55,808 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc8 [2022-11-02 20:35:55,809 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc8 [2022-11-02 20:35:55,809 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_alloc [2022-11-02 20:35:55,810 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_alloc [2022-11-02 20:35:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-02 20:35:55,811 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-02 20:35:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure ring_free [2022-11-02 20:35:55,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_free [2022-11-02 20:35:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-02 20:35:55,812 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-02 20:35:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure ring_write_descriptors [2022-11-02 20:35:55,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_write_descriptors [2022-11-02 20:35:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 20:35:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite64desc [2022-11-02 20:35:55,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite64desc [2022-11-02 20:35:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deallocate_nfc [2022-11-02 20:35:55,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deallocate_nfc [2022-11-02 20:35:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_unplugged_children [2022-11-02 20:35:55,813 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_unplugged_children [2022-11-02 20:35:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc [2022-11-02 20:35:55,814 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc [2022-11-02 20:35:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-02 20:35:55,814 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-02 20:35:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 20:35:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure tb_plug_events_active [2022-11-02 20:35:55,815 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_plug_events_active [2022-11-02 20:35:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-02 20:35:55,815 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-02 20:35:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_stop [2022-11-02 20:35:55,815 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_stop [2022-11-02 20:35:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:35:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_resume [2022-11-02 20:35:55,816 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_resume [2022-11-02 20:35:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_print_error [2022-11-02 20:35:55,816 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_print_error [2022-11-02 20:35:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure tb_wait_for_port [2022-11-02 20:35:55,817 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_wait_for_port [2022-11-02 20:35:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 20:35:55,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 20:35:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_add_nfc_credits [2022-11-02 20:35:55,817 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_add_nfc_credits [2022-11-02 20:35:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-02 20:35:55,818 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-02 20:35:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-11-02 20:35:55,818 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-11-02 20:35:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_switch [2022-11-02 20:35:55,818 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_switch [2022-11-02 20:35:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-02 20:35:55,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-02 20:35:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_start [2022-11-02 20:35:55,819 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_start [2022-11-02 20:35:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_restart [2022-11-02 20:35:55,819 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_restart [2022-11-02 20:35:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure ring_start [2022-11-02 20:35:55,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_start [2022-11-02 20:35:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 20:35:55,820 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 20:35:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure check_config_address [2022-11-02 20:35:55,821 INFO L138 BoogieDeclarations]: Found implementation of procedure check_config_address [2022-11-02 20:35:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure ring_stop [2022-11-02 20:35:55,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_stop [2022-11-02 20:35:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_write [2022-11-02 20:35:55,821 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_write [2022-11-02 20:35:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-02 20:35:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-02 20:35:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:35:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:35:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:35:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read [2022-11-02 20:35:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read [2022-11-02 20:35:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-02 20:35:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-02 20:35:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_free [2022-11-02 20:35:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_free [2022-11-02 20:35:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure __crc32c_le [2022-11-02 20:35:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __crc32c_le [2022-11-02 20:35:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:35:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kcalloc [2022-11-02 20:35:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kcalloc [2022-11-02 20:35:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-02 20:35:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_index [2022-11-02 20:35:55,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_index [2022-11-02 20:35:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-02 20:35:55,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-02 20:35:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_free [2022-11-02 20:35:55,825 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_free [2022-11-02 20:35:55,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:35:55,826 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_is_invalid [2022-11-02 20:35:55,826 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_is_invalid [2022-11-02 20:35:55,826 INFO L130 BoogieDeclarations]: Found specification of procedure dev_driver_string [2022-11-02 20:35:55,826 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_driver_string [2022-11-02 20:35:55,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:35:55,827 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_transfer [2022-11-02 20:35:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_transfer [2022-11-02 20:35:55,827 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_basic [2022-11-02 20:35:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_basic [2022-11-02 20:35:55,827 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_init_path [2022-11-02 20:35:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_init_path [2022-11-02 20:35:55,828 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deactivate_hops [2022-11-02 20:35:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deactivate_hops [2022-11-02 20:35:55,828 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_free [2022-11-02 20:35:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_free [2022-11-02 20:35:55,828 INFO L130 BoogieDeclarations]: Found specification of procedure tb_is_upstream_port [2022-11-02 20:35:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_is_upstream_port [2022-11-02 20:35:55,829 INFO L130 BoogieDeclarations]: Found specification of procedure ring_alloc [2022-11-02 20:35:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_alloc [2022-11-02 20:35:55,829 INFO L130 BoogieDeclarations]: Found specification of procedure tb_upstream_port [2022-11-02 20:35:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_upstream_port [2022-11-02 20:35:55,830 INFO L130 BoogieDeclarations]: Found specification of procedure __ring_enqueue [2022-11-02 20:35:55,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __ring_enqueue [2022-11-02 20:35:55,830 INFO L130 BoogieDeclarations]: Found specification of procedure make_header [2022-11-02 20:35:55,830 INFO L138 BoogieDeclarations]: Found implementation of procedure make_header [2022-11-02 20:35:55,830 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-02 20:35:55,830 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-02 20:35:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_invalid_tunnels [2022-11-02 20:35:55,832 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_invalid_tunnels [2022-11-02 20:35:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-11-02 20:35:55,837 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-11-02 20:35:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_read [2022-11-02 20:35:55,838 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_read [2022-11-02 20:35:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-02 20:35:55,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-02 20:35:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_deactivate [2022-11-02 20:35:55,838 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_deactivate [2022-11-02 20:35:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-02 20:35:55,840 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-02 20:35:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_out [2022-11-02 20:35:55,843 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_out [2022-11-02 20:35:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_write [2022-11-02 20:35:55,843 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_write [2022-11-02 20:35:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-02 20:35:55,843 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-02 20:35:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:35:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx [2022-11-02 20:35:55,844 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx [2022-11-02 20:35:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:35:55,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:35:55,845 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route [2022-11-02 20:35:55,845 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route [2022-11-02 20:35:57,381 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:35:57,386 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:35:58,054 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 20:36:26,452 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:36:26,489 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:36:26,490 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:36:26,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:36:26 BoogieIcfgContainer [2022-11-02 20:36:26,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:36:26,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:36:26,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:36:26,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:36:26,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:35:50" (1/3) ... [2022-11-02 20:36:26,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591d6655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:36:26, skipping insertion in model container [2022-11-02 20:36:26,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:54" (2/3) ... [2022-11-02 20:36:26,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591d6655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:36:26, skipping insertion in model container [2022-11-02 20:36:26,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:36:26" (3/3) ... [2022-11-02 20:36:26,508 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-11-02 20:36:26,535 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:36:26,535 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:36:26,695 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:36:26,709 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;@6313f58a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:36:26,710 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:36:26,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 2456 states, 1665 states have (on average 1.330930930930931) internal successors, (2216), 1703 states have internal predecessors, (2216), 664 states have call successors, (664), 126 states have call predecessors, (664), 125 states have return successors, (658), 654 states have call predecessors, (658), 658 states have call successors, (658) [2022-11-02 20:36:26,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-02 20:36:26,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:26,788 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-02 20:36:26,790 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:36:26,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:26,800 INFO L85 PathProgramCache]: Analyzing trace with hash 2034179201, now seen corresponding path program 1 times [2022-11-02 20:36:26,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:26,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879051437] [2022-11-02 20:36:26,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:26,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:27,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:36:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:27,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:36:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:27,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:36:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:27,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 20:36:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:27,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:36:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:27,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 20:36:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:27,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-02 20:36:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:27,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-02 20:36:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:28,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-02 20:36:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:28,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:36:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:28,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:36:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:28,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:36:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:28,237 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-02 20:36:28,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:28,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879051437] [2022-11-02 20:36:28,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879051437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:28,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:28,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:36:28,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518660011] [2022-11-02 20:36:28,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:28,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:36:28,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:28,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:36:28,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:36:28,310 INFO L87 Difference]: Start difference. First operand has 2456 states, 1665 states have (on average 1.330930930930931) internal successors, (2216), 1703 states have internal predecessors, (2216), 664 states have call successors, (664), 126 states have call predecessors, (664), 125 states have return successors, (658), 654 states have call predecessors, (658), 658 states have call successors, (658) Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-02 20:36:33,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:36,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:39,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:41,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:49,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:56,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:05,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:09,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:13,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:15,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:18,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:18,717 INFO L93 Difference]: Finished difference Result 7664 states and 11673 transitions. [2022-11-02 20:37:18,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:37:18,720 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2022-11-02 20:37:18,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:18,792 INFO L225 Difference]: With dead ends: 7664 [2022-11-02 20:37:18,792 INFO L226 Difference]: Without dead ends: 5184 [2022-11-02 20:37:18,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:37:18,833 INFO L413 NwaCegarLoop]: 4027 mSDtfsCounter, 5835 mSDsluCounter, 4610 mSDsCounter, 0 mSdLazyCounter, 3778 mSolverCounterSat, 5251 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6323 SdHoareTripleChecker+Valid, 8637 SdHoareTripleChecker+Invalid, 9036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5251 IncrementalHoareTripleChecker+Valid, 3778 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:18,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6323 Valid, 8637 Invalid, 9036 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5251 Valid, 3778 Invalid, 7 Unknown, 0 Unchecked, 49.2s Time] [2022-11-02 20:37:18,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5184 states. [2022-11-02 20:37:19,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5184 to 4183. [2022-11-02 20:37:19,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4183 states, 2837 states have (on average 1.3249911878745153) internal successors, (3759), 2889 states have internal predecessors, (3759), 1117 states have call successors, (1117), 229 states have call predecessors, (1117), 228 states have return successors, (1116), 1108 states have call predecessors, (1116), 1116 states have call successors, (1116) [2022-11-02 20:37:19,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4183 states to 4183 states and 5992 transitions. [2022-11-02 20:37:19,414 INFO L78 Accepts]: Start accepts. Automaton has 4183 states and 5992 transitions. Word has length 107 [2022-11-02 20:37:19,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:19,416 INFO L495 AbstractCegarLoop]: Abstraction has 4183 states and 5992 transitions. [2022-11-02 20:37:19,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-02 20:37:19,417 INFO L276 IsEmpty]: Start isEmpty. Operand 4183 states and 5992 transitions. [2022-11-02 20:37:19,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-02 20:37:19,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:19,430 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:37:19,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:37:19,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:19,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:19,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1327248420, now seen corresponding path program 1 times [2022-11-02 20:37:19,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:19,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172586864] [2022-11-02 20:37:19,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:19,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:20,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:37:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:20,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:37:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:20,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:37:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:20,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 20:37:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:20,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-02 20:37:20,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:20,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 20:37:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-02 20:37:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:20,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:37:20,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:20,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:37:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:20,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:37:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:20,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:37:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:20,362 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-02 20:37:20,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:20,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172586864] [2022-11-02 20:37:20,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172586864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:20,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:20,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:37:20,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999974349] [2022-11-02 20:37:20,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:20,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:37:20,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:20,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:37:20,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:37:20,367 INFO L87 Difference]: Start difference. First operand 4183 states and 5992 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 20:37:27,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:29,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:33,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:35,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:38,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:40,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:42,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:52,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:54,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:00,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:15,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:16,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:20,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:24,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:25,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:26,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:29,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:39,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:41,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:48,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:48,131 INFO L93 Difference]: Finished difference Result 12558 states and 18285 transitions. [2022-11-02 20:38:48,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:38:48,133 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2022-11-02 20:38:48,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:48,193 INFO L225 Difference]: With dead ends: 12558 [2022-11-02 20:38:48,193 INFO L226 Difference]: Without dead ends: 8383 [2022-11-02 20:38:48,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:38:48,218 INFO L413 NwaCegarLoop]: 4585 mSDtfsCounter, 6631 mSDsluCounter, 8179 mSDsCounter, 0 mSdLazyCounter, 7042 mSolverCounterSat, 5490 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7224 SdHoareTripleChecker+Valid, 12764 SdHoareTripleChecker+Invalid, 12541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5490 IncrementalHoareTripleChecker+Valid, 7042 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:48,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7224 Valid, 12764 Invalid, 12541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5490 Valid, 7042 Invalid, 9 Unknown, 0 Unchecked, 86.7s Time] [2022-11-02 20:38:48,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8383 states. [2022-11-02 20:38:48,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8383 to 6814. [2022-11-02 20:38:48,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6814 states, 4608 states have (on average 1.3181423611111112) internal successors, (6074), 4695 states have internal predecessors, (6074), 1818 states have call successors, (1818), 388 states have call predecessors, (1818), 387 states have return successors, (1817), 1805 states have call predecessors, (1817), 1817 states have call successors, (1817) [2022-11-02 20:38:48,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6814 states to 6814 states and 9709 transitions. [2022-11-02 20:38:48,812 INFO L78 Accepts]: Start accepts. Automaton has 6814 states and 9709 transitions. Word has length 100 [2022-11-02 20:38:48,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:48,814 INFO L495 AbstractCegarLoop]: Abstraction has 6814 states and 9709 transitions. [2022-11-02 20:38:48,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 20:38:48,815 INFO L276 IsEmpty]: Start isEmpty. Operand 6814 states and 9709 transitions. [2022-11-02 20:38:48,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-02 20:38:48,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:48,835 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-02 20:38:48,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:38:48,836 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:48,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:48,837 INFO L85 PathProgramCache]: Analyzing trace with hash -355677677, now seen corresponding path program 1 times [2022-11-02 20:38:48,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:38:48,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764038123] [2022-11-02 20:38:48,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:48,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:38:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:49,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:38:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:49,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:38:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:49,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:38:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:49,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 20:38:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:49,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:38:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:49,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:38:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:49,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-02 20:38:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:49,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-02 20:38:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:49,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:38:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:49,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-02 20:38:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:49,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:38:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:49,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:38:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:49,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:38:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:49,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:38:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:49,737 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-02 20:38:49,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:38:49,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764038123] [2022-11-02 20:38:49,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764038123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:49,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:49,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:38:49,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082233919] [2022-11-02 20:38:49,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:49,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:38:49,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:38:49,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:38:49,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:38:49,740 INFO L87 Difference]: Start difference. First operand 6814 states and 9709 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-02 20:38:55,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:57,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:39:00,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:39:02,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:39:04,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:39:10,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:39:33,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []