./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--usb--isp1760--isp1760.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_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/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_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--isp1760--isp1760.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/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_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/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 02dd32bddba19b84f713c448bd8e9ace974caebaf6d84ba76c08aa5870e8df57 --- 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 20:51:14,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:51:14,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:51:14,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:51:14,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:51:14,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:51:14,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:51:14,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:51:14,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:51:14,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:51:14,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:51:14,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:51:14,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:51:14,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:51:14,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:51:14,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:51:14,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:51:14,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:51:14,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:51:14,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:51:14,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:51:14,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:51:14,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:51:14,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:51:14,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:51:14,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:51:14,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:51:14,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:51:14,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:51:14,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:51:14,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:51:14,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:51:14,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:51:14,328 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:51:14,329 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:51:14,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:51:14,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:51:14,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:51:14,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:51:14,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:51:14,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:51:14,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:51:14,361 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:51:14,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:51:14,361 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:51:14,361 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:51:14,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:51:14,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:51:14,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:51:14,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:51:14,363 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:51:14,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:51:14,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:51:14,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:51:14,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:51:14,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:51:14,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:51:14,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:51:14,365 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:51:14,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:51:14,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:51:14,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:51:14,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:51:14,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:51:14,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:51:14,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:51:14,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:51:14,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:51:14,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:51:14,368 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:51:14,368 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:51:14,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:51:14,368 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_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02dd32bddba19b84f713c448bd8e9ace974caebaf6d84ba76c08aa5870e8df57 [2022-11-02 20:51:14,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:51:14,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:51:14,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:51:14,739 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:51:14,740 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:51:14,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--isp1760--isp1760.ko-entry_point.cil.out.i [2022-11-02 20:51:14,845 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/bin/uautomizer-Dbtcem3rbc/data/142647837/e04f9ca748124c8b836fb489e2251a40/FLAGbc03680dc [2022-11-02 20:51:15,828 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:51:15,828 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--isp1760--isp1760.ko-entry_point.cil.out.i [2022-11-02 20:51:15,868 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/bin/uautomizer-Dbtcem3rbc/data/142647837/e04f9ca748124c8b836fb489e2251a40/FLAGbc03680dc [2022-11-02 20:51:16,253 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/bin/uautomizer-Dbtcem3rbc/data/142647837/e04f9ca748124c8b836fb489e2251a40 [2022-11-02 20:51:16,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:51:16,261 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:51:16,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:51:16,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:51:16,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:51:16,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:51:16" (1/1) ... [2022-11-02 20:51:16,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28d49cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:16, skipping insertion in model container [2022-11-02 20:51:16,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:51:16" (1/1) ... [2022-11-02 20:51:16,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:51:16,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:51:19,043 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_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--isp1760--isp1760.ko-entry_point.cil.out.i[331365,331378] [2022-11-02 20:51:19,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:51:19,158 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:51:19,773 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_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--isp1760--isp1760.ko-entry_point.cil.out.i[331365,331378] [2022-11-02 20:51:19,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:51:19,911 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:51:19,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:19 WrapperNode [2022-11-02 20:51:19,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:51:19,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:51:19,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:51:19,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:51:19,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:19" (1/1) ... [2022-11-02 20:51:20,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:19" (1/1) ... [2022-11-02 20:51:20,338 INFO L138 Inliner]: procedures = 335, calls = 3513, calls flagged for inlining = 146, calls inlined = 126, statements flattened = 7030 [2022-11-02 20:51:20,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:51:20,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:51:20,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:51:20,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:51:20,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:19" (1/1) ... [2022-11-02 20:51:20,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:19" (1/1) ... [2022-11-02 20:51:20,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:19" (1/1) ... [2022-11-02 20:51:20,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:19" (1/1) ... [2022-11-02 20:51:20,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:19" (1/1) ... [2022-11-02 20:51:20,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:19" (1/1) ... [2022-11-02 20:51:20,704 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:19" (1/1) ... [2022-11-02 20:51:20,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:19" (1/1) ... [2022-11-02 20:51:20,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:51:20,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:51:20,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:51:20,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:51:20,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:19" (1/1) ... [2022-11-02 20:51:20,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:51:20,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:20,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:51:20,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4d81ab-a4e2-4401-a493-217f0c27ae7a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:51:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_reset [2022-11-02 20:51:20,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_reset [2022-11-02 20:51:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure bank_reads8 [2022-11-02 20:51:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure bank_reads8 [2022-11-02 20:51:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_plat_probe [2022-11-02 20:51:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_plat_probe [2022-11-02 20:51:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure ep_to_udc_ep [2022-11-02 20:51:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_to_udc_ep [2022-11-02 20:51:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 20:51:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 20:51:20,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 20:51:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2022-11-02 20:51:20,945 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2022-11-02 20:51:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-02 20:51:20,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-02 20:51:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_hcd_unregister [2022-11-02 20:51:20,946 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_hcd_unregister [2022-11-02 20:51:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_register [2022-11-02 20:51:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_register [2022-11-02 20:51:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_get_frame [2022-11-02 20:51:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_get_frame [2022-11-02 20:51:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-02 20:51:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-02 20:51:20,948 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_hub_status_data [2022-11-02 20:51:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_hub_status_data [2022-11-02 20:51:20,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:51:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:51:20,948 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-11-02 20:51:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-11-02 20:51:20,948 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_hub_control [2022-11-02 20:51:20,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_hub_control [2022-11-02 20:51:20,949 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-02 20:51:20,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-02 20:51:20,949 INFO L130 BoogieDeclarations]: Found specification of procedure mem_writes8 [2022-11-02 20:51:20,949 INFO L138 BoogieDeclarations]: Found implementation of procedure mem_writes8 [2022-11-02 20:51:20,949 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2022-11-02 20:51:20,950 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2022-11-02 20:51:20,950 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-02 20:51:20,950 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-02 20:51:20,951 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-02 20:51:20,951 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-02 20:51:20,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 20:51:20,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 20:51:20,951 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_urb_enqueue [2022-11-02 20:51:20,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_urb_enqueue [2022-11-02 20:51:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_udc_transmit [2022-11-02 20:51:20,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_udc_transmit [2022-11-02 20:51:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_endpoint_disable [2022-11-02 20:51:20,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_endpoint_disable [2022-11-02 20:51:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:51:20,953 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:51:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:51:20,953 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:51:20,954 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-02 20:51:20,954 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-02 20:51:20,954 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2022-11-02 20:51:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2022-11-02 20:51:20,956 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_unregister [2022-11-02 20:51:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_unregister [2022-11-02 20:51:20,956 INFO L130 BoogieDeclarations]: Found specification of procedure of_property_read_bool [2022-11-02 20:51:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure of_property_read_bool [2022-11-02 20:51:20,957 INFO L130 BoogieDeclarations]: Found specification of procedure create_ptd_atl [2022-11-02 20:51:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure create_ptd_atl [2022-11-02 20:51:20,957 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-02 20:51:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-02 20:51:20,957 INFO L130 BoogieDeclarations]: Found specification of procedure last_qtd_of_urb [2022-11-02 20:51:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure last_qtd_of_urb [2022-11-02 20:51:20,958 INFO L130 BoogieDeclarations]: Found specification of procedure isp1761_pci_shutdown [2022-11-02 20:51:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1761_pci_shutdown [2022-11-02 20:51:20,959 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_ep_set_wedge [2022-11-02 20:51:20,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_ep_set_wedge [2022-11-02 20:51:20,960 INFO L130 BoogieDeclarations]: Found specification of procedure list_is_last [2022-11-02 20:51:20,960 INFO L138 BoogieDeclarations]: Found implementation of procedure list_is_last [2022-11-02 20:51:20,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:51:20,960 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2022-11-02 20:51:20,960 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2022-11-02 20:51:20,960 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-02 20:51:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-02 20:51:20,961 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_clear_tt_buffer_complete [2022-11-02 20:51:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_clear_tt_buffer_complete [2022-11-02 20:51:20,961 INFO L130 BoogieDeclarations]: Found specification of procedure isp1761_pci_probe [2022-11-02 20:51:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1761_pci_probe [2022-11-02 20:51:20,961 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_list_free [2022-11-02 20:51:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_list_free [2022-11-02 20:51:20,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:51:20,962 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-02 20:51:20,962 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-02 20:51:20,962 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_stop [2022-11-02 20:51:20,962 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_stop [2022-11-02 20:51:20,962 INFO L130 BoogieDeclarations]: Found specification of procedure __isp1760_ep_set_halt [2022-11-02 20:51:20,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __isp1760_ep_set_halt [2022-11-02 20:51:20,963 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_fill [2022-11-02 20:51:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_fill [2022-11-02 20:51:20,964 INFO L130 BoogieDeclarations]: Found specification of procedure isp1761_pci_remove [2022-11-02 20:51:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1761_pci_remove [2022-11-02 20:51:20,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-02 20:51:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-02 20:51:20,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-02 20:51:20,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-02 20:51:20,965 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-02 20:51:20,965 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-02 20:51:20,965 INFO L130 BoogieDeclarations]: Found specification of procedure __ffs [2022-11-02 20:51:20,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __ffs [2022-11-02 20:51:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_urb_dequeue [2022-11-02 20:51:20,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_urb_dequeue [2022-11-02 20:51:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure handle_done_ptds [2022-11-02 20:51:20,966 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_done_ptds [2022-11-02 20:51:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-02 20:51:20,967 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-02 20:51:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:51:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-02 20:51:20,967 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-02 20:51:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:51:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_irq [2022-11-02 20:51:20,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_irq [2022-11-02 20:51:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_ep_disable [2022-11-02 20:51:20,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_ep_disable [2022-11-02 20:51:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-02 20:51:20,968 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-02 20:51:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-02 20:51:20,969 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-02 20:51:20,969 INFO L130 BoogieDeclarations]: Found specification of procedure gpiod_set_value_cansleep [2022-11-02 20:51:20,969 INFO L138 BoogieDeclarations]: Found implementation of procedure gpiod_set_value_cansleep [2022-11-02 20:51:20,969 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2022-11-02 20:51:20,969 INFO L130 BoogieDeclarations]: Found specification of procedure __isp1760_udc_set_halt [2022-11-02 20:51:20,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __isp1760_udc_set_halt [2022-11-02 20:51:20,970 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-02 20:51:20,970 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-02 20:51:20,970 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_udc_request_complete [2022-11-02 20:51:20,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_udc_request_complete [2022-11-02 20:51:20,970 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2022-11-02 20:51:20,970 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2022-11-02 20:51:20,970 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_run [2022-11-02 20:51:20,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_run [2022-11-02 20:51:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_udc_wakeup [2022-11-02 20:51:20,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_udc_wakeup [2022-11-02 20:51:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-02 20:51:20,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-02 20:51:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_ep_dequeue [2022-11-02 20:51:20,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_ep_dequeue [2022-11-02 20:51:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-02 20:51:20,972 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-02 20:51:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 20:51:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2022-11-02 20:51:20,972 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2022-11-02 20:51:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-11-02 20:51:20,973 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-11-02 20:51:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:51:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_udc_select_ep [2022-11-02 20:51:20,973 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_udc_select_ep [2022-11-02 20:51:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_ep_free_request [2022-11-02 20:51:20,973 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_ep_free_request [2022-11-02 20:51:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_udc_read [2022-11-02 20:51:20,974 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_udc_read [2022-11-02 20:51:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2022-11-02 20:51:20,974 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2022-11-02 20:51:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-02 20:51:20,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-02 20:51:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-02 20:51:20,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-02 20:51:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 20:51:20,975 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 20:51:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_hc_setup [2022-11-02 20:51:20,975 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_hc_setup [2022-11-02 20:51:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-02 20:51:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-02 20:51:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:51:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-02 20:51:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-02 20:51:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_udc_init_hw [2022-11-02 20:51:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_udc_init_hw [2022-11-02 20:51:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-02 20:51:20,977 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-02 20:51:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure start_bus_transfer [2022-11-02 20:51:20,977 INFO L138 BoogieDeclarations]: Found implementation of procedure start_bus_transfer [2022-11-02 20:51:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:51:20,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:51:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-02 20:51:20,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-02 20:51:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2022-11-02 20:51:20,978 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2022-11-02 20:51:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:51:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_shutdown [2022-11-02 20:51:20,978 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_shutdown [2022-11-02 20:51:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_plat_remove [2022-11-02 20:51:20,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_plat_remove [2022-11-02 20:51:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-02 20:51:20,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-02 20:51:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-11-02 20:51:20,979 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-11-02 20:51:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure ptd_read [2022-11-02 20:51:20,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ptd_read [2022-11-02 20:51:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-02 20:51:20,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-02 20:51:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:51:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure reg_read32 [2022-11-02 20:51:20,980 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_read32 [2022-11-02 20:51:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_state [2022-11-02 20:51:20,981 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_state [2022-11-02 20:51:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-02 20:51:20,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-02 20:51:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_free [2022-11-02 20:51:20,981 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_free [2022-11-02 20:51:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:51:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_ep_enable [2022-11-02 20:51:20,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_ep_enable [2022-11-02 20:51:20,982 INFO L130 BoogieDeclarations]: Found specification of procedure is_short_bulk [2022-11-02 20:51:20,982 INFO L138 BoogieDeclarations]: Found implementation of procedure is_short_bulk [2022-11-02 20:51:20,982 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2022-11-02 20:51:20,982 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2022-11-02 20:51:20,982 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_read32 [2022-11-02 20:51:20,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_read32 [2022-11-02 20:51:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_write32 [2022-11-02 20:51:20,983 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_write32 [2022-11-02 20:51:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_zalloc [2022-11-02 20:51:20,983 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_zalloc [2022-11-02 20:51:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure reg_write32 [2022-11-02 20:51:20,983 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_write32 [2022-11-02 20:51:20,984 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_udc_ctrl_send_status [2022-11-02 20:51:20,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_udc_ctrl_send_status [2022-11-02 20:51:20,984 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hub_clear_tt_buffer [2022-11-02 20:51:20,984 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hub_clear_tt_buffer [2022-11-02 20:51:20,984 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2022-11-02 20:51:20,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2022-11-02 20:51:20,984 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_udc_stop [2022-11-02 20:51:20,985 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_udc_stop [2022-11-02 20:51:20,985 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_udc_start [2022-11-02 20:51:20,985 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_udc_start [2022-11-02 20:51:20,985 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-02 20:51:20,985 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-02 20:51:20,985 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-02 20:51:20,985 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-02 20:51:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure req_to_udc_req [2022-11-02 20:51:20,986 INFO L138 BoogieDeclarations]: Found implementation of procedure req_to_udc_req [2022-11-02 20:51:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_udc_receive [2022-11-02 20:51:20,986 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_udc_receive [2022-11-02 20:51:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_set_pullup [2022-11-02 20:51:20,986 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_set_pullup [2022-11-02 20:51:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2022-11-02 20:51:20,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2022-11-02 20:51:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_priv [2022-11-02 20:51:20,987 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_priv [2022-11-02 20:51:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure create_ptd_int [2022-11-02 20:51:20,987 INFO L138 BoogieDeclarations]: Found implementation of procedure create_ptd_int [2022-11-02 20:51:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure handshake [2022-11-02 20:51:20,988 INFO L138 BoogieDeclarations]: Found implementation of procedure handshake [2022-11-02 20:51:20,988 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_deinit_kmem_cache [2022-11-02 20:51:20,988 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_deinit_kmem_cache [2022-11-02 20:51:20,988 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_ptds [2022-11-02 20:51:20,988 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_ptds [2022-11-02 20:51:20,988 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_alloc [2022-11-02 20:51:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_alloc [2022-11-02 20:51:20,989 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2022-11-02 20:51:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2022-11-02 20:51:20,989 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-02 20:51:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-02 20:51:20,989 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-02 20:51:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-02 20:51:20,990 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2022-11-02 20:51:20,990 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2022-11-02 20:51:20,990 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_udc_get_frame [2022-11-02 20:51:20,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_udc_get_frame [2022-11-02 20:51:20,990 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-02 20:51:20,990 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-02 20:51:20,991 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_to_udc [2022-11-02 20:51:20,991 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_to_udc [2022-11-02 20:51:20,991 INFO L130 BoogieDeclarations]: Found specification of procedure __isp1760_udc_select_ep [2022-11-02 20:51:20,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __isp1760_udc_select_ep [2022-11-02 20:51:20,991 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-02 20:51:20,991 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-02 20:51:20,991 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-02 20:51:20,992 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-02 20:51:20,992 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-02 20:51:20,992 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-02 20:51:20,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:51:20,992 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-02 20:51:20,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-11-02 20:51:20,992 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-02 20:51:20,993 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-02 20:51:20,993 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_udc_write [2022-11-02 20:51:20,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_udc_write [2022-11-02 20:51:20,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:51:20,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:51:20,993 INFO L130 BoogieDeclarations]: Found specification of procedure isp1760_ep_fifo_flush [2022-11-02 20:51:20,994 INFO L138 BoogieDeclarations]: Found implementation of procedure isp1760_ep_fifo_flush [2022-11-02 20:51:20,994 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-02 20:51:20,994 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-02 20:51:21,957 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:51:21,961 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:51:22,457 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 20:54:14,743 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:54:14,777 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:54:14,777 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:54:14,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:54:14 BoogieIcfgContainer [2022-11-02 20:54:14,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:54:14,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:54:14,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:54:14,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:54:14,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:51:16" (1/3) ... [2022-11-02 20:54:14,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df4f141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:54:14, skipping insertion in model container [2022-11-02 20:54:14,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:19" (2/3) ... [2022-11-02 20:54:14,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df4f141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:54:14, skipping insertion in model container [2022-11-02 20:54:14,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:54:14" (3/3) ... [2022-11-02 20:54:14,793 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--isp1760--isp1760.ko-entry_point.cil.out.i [2022-11-02 20:54:14,811 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:54:14,811 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:54:14,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:54:14,942 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;@28084f7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:54:14,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:54:14,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 2488 states, 1705 states have (on average 1.363049853372434) internal successors, (2324), 1776 states have internal predecessors, (2324), 646 states have call successors, (646), 136 states have call predecessors, (646), 135 states have return successors, (639), 628 states have call predecessors, (639), 639 states have call successors, (639) [2022-11-02 20:54:14,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-02 20:54:14,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:54:14,991 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-02 20:54:14,992 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:54:14,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:14,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2068539342, now seen corresponding path program 1 times [2022-11-02 20:54:15,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:15,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779716998] [2022-11-02 20:54:15,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:15,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:54:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:54:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 20:54:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-02 20:54:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-02 20:54:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-02 20:54:16,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:16,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779716998] [2022-11-02 20:54:16,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779716998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:16,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:16,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:54:16,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839802269] [2022-11-02 20:54:16,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:16,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:54:16,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:16,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:54:16,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:54:16,742 INFO L87 Difference]: Start difference. First operand has 2488 states, 1705 states have (on average 1.363049853372434) internal successors, (2324), 1776 states have internal predecessors, (2324), 646 states have call successors, (646), 136 states have call predecessors, (646), 135 states have return successors, (639), 628 states have call predecessors, (639), 639 states have call successors, (639) Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-02 20:54:18,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:54:21,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:54:23,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:54:43,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:54:43,643 INFO L93 Difference]: Finished difference Result 5157 states and 7606 transitions. [2022-11-02 20:54:43,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:54:43,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 92 [2022-11-02 20:54:43,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:54:43,691 INFO L225 Difference]: With dead ends: 5157 [2022-11-02 20:54:43,691 INFO L226 Difference]: Without dead ends: 2653 [2022-11-02 20:54:43,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:54:43,719 INFO L413 NwaCegarLoop]: 3221 mSDtfsCounter, 1441 mSDsluCounter, 3893 mSDsCounter, 0 mSdLazyCounter, 3098 mSolverCounterSat, 1723 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 7114 SdHoareTripleChecker+Invalid, 4824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1723 IncrementalHoareTripleChecker+Valid, 3098 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:54:43,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 7114 Invalid, 4824 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1723 Valid, 3098 Invalid, 3 Unknown, 0 Unchecked, 26.3s Time] [2022-11-02 20:54:43,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2022-11-02 20:54:43,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 2467. [2022-11-02 20:54:43,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 1694 states have (on average 1.358913813459268) internal successors, (2302), 1756 states have internal predecessors, (2302), 638 states have call successors, (638), 135 states have call predecessors, (638), 134 states have return successors, (637), 626 states have call predecessors, (637), 637 states have call successors, (637) [2022-11-02 20:54:43,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 3577 transitions. [2022-11-02 20:54:43,992 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 3577 transitions. Word has length 92 [2022-11-02 20:54:43,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:54:43,993 INFO L495 AbstractCegarLoop]: Abstraction has 2467 states and 3577 transitions. [2022-11-02 20:54:43,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-02 20:54:43,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 3577 transitions. [2022-11-02 20:54:44,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-02 20:54:44,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:54:44,005 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-02 20:54:44,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:54:44,012 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:54:44,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:44,017 INFO L85 PathProgramCache]: Analyzing trace with hash -859996234, now seen corresponding path program 1 times [2022-11-02 20:54:44,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:44,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919857430] [2022-11-02 20:54:44,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:44,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:44,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:54:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:44,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:44,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:44,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:54:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:44,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:44,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:54:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:45,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 20:54:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:45,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:45,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-02 20:54:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:45,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:45,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-02 20:54:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:45,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:54:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:45,093 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-02 20:54:45,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:45,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919857430] [2022-11-02 20:54:45,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919857430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:45,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:45,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:54:45,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648214754] [2022-11-02 20:54:45,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:45,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:54:45,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:45,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:54:45,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:54:45,097 INFO L87 Difference]: Start difference. First operand 2467 states and 3577 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-02 20:54:47,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:54:49,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:55:18,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:18,122 INFO L93 Difference]: Finished difference Result 7332 states and 10683 transitions. [2022-11-02 20:55:18,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:55:18,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 92 [2022-11-02 20:55:18,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:18,158 INFO L225 Difference]: With dead ends: 7332 [2022-11-02 20:55:18,159 INFO L226 Difference]: Without dead ends: 4872 [2022-11-02 20:55:18,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:55:18,173 INFO L413 NwaCegarLoop]: 3528 mSDtfsCounter, 5505 mSDsluCounter, 4863 mSDsCounter, 0 mSdLazyCounter, 4556 mSolverCounterSat, 3817 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5859 SdHoareTripleChecker+Valid, 8391 SdHoareTripleChecker+Invalid, 8375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3817 IncrementalHoareTripleChecker+Valid, 4556 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:18,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5859 Valid, 8391 Invalid, 8375 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3817 Valid, 4556 Invalid, 2 Unknown, 0 Unchecked, 32.2s Time] [2022-11-02 20:55:18,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4872 states. [2022-11-02 20:55:18,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4872 to 4499. [2022-11-02 20:55:18,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4499 states, 3100 states have (on average 1.357741935483871) internal successors, (4209), 3210 states have internal predecessors, (4209), 1147 states have call successors, (1147), 252 states have call predecessors, (1147), 251 states have return successors, (1146), 1129 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-11-02 20:55:18,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4499 states to 4499 states and 6502 transitions. [2022-11-02 20:55:18,426 INFO L78 Accepts]: Start accepts. Automaton has 4499 states and 6502 transitions. Word has length 92 [2022-11-02 20:55:18,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:18,427 INFO L495 AbstractCegarLoop]: Abstraction has 4499 states and 6502 transitions. [2022-11-02 20:55:18,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-02 20:55:18,431 INFO L276 IsEmpty]: Start isEmpty. Operand 4499 states and 6502 transitions. [2022-11-02 20:55:18,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-02 20:55:18,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:18,448 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:55:18,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:55:18,450 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:55:18,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:18,450 INFO L85 PathProgramCache]: Analyzing trace with hash -890738464, now seen corresponding path program 1 times [2022-11-02 20:55:18,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:18,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659473528] [2022-11-02 20:55:18,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:18,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:55:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:55:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 20:55:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:55:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:55:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:55:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-02 20:55:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-02 20:55:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-02 20:55:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-02 20:55:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:19,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-02 20:55:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-02 20:55:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-02 20:55:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:19,607 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-11-02 20:55:19,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:19,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659473528] [2022-11-02 20:55:19,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659473528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:19,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:19,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:55:19,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324472505] [2022-11-02 20:55:19,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:19,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:55:19,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:19,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:55:19,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:55:19,614 INFO L87 Difference]: Start difference. First operand 4499 states and 6502 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:55:21,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []