./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8 --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 e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 --- 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-e04fb08 [2022-11-16 11:03:23,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:03:23,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:03:23,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:03:23,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:03:23,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:03:23,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:03:23,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:03:23,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:03:23,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:03:23,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:03:23,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:03:23,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:03:23,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:03:23,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:03:23,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:03:23,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:03:23,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:03:23,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:03:23,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:03:23,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:03:23,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:03:23,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:03:23,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:03:23,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:03:23,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:03:23,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:03:23,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:03:23,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:03:23,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:03:23,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:03:23,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:03:23,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:03:23,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:03:23,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:03:23,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:03:23,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:03:23,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:03:23,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:03:23,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:03:23,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:03:23,207 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:03:23,251 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:03:23,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:03:23,253 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:03:23,253 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:03:23,254 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:03:23,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:03:23,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:03:23,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:03:23,256 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:03:23,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:03:23,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:03:23,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:03:23,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:03:23,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:03:23,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:03:23,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:03:23,260 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:03:23,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:03:23,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:03:23,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:03:23,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:03:23,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:03:23,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:03:23,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:03:23,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:03:23,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:03:23,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:03:23,265 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:03:23,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:03:23,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:03:23,266 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_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 [2022-11-16 11:03:23,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:03:23,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:03:23,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:03:23,713 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:03:23,714 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:03:23,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-16 11:03:23,827 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/data/7e9c6f9ac/ec95647b4b3046a19f2059eec33e9a15/FLAGcf5006f0c [2022-11-16 11:03:24,765 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:03:24,766 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-16 11:03:24,802 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/data/7e9c6f9ac/ec95647b4b3046a19f2059eec33e9a15/FLAGcf5006f0c [2022-11-16 11:03:25,229 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/data/7e9c6f9ac/ec95647b4b3046a19f2059eec33e9a15 [2022-11-16 11:03:25,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:03:25,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:03:25,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:03:25,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:03:25,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:03:25,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:03:25" (1/1) ... [2022-11-16 11:03:25,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7159cadc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:03:25, skipping insertion in model container [2022-11-16 11:03:25,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:03:25" (1/1) ... [2022-11-16 11:03:25,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:03:25,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:03:26,290 WARN L229 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_332e7465-6220-4259-a8da-88e419795448/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2022-11-16 11:03:26,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:03:27,021 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:03:27,113 WARN L229 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_332e7465-6220-4259-a8da-88e419795448/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2022-11-16 11:03:27,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:03:27,430 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:03:27,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:03:27 WrapperNode [2022-11-16 11:03:27,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:03:27,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:03:27,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:03:27,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:03:27,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:03:27" (1/1) ... [2022-11-16 11:03:27,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:03:27" (1/1) ... [2022-11-16 11:03:27,702 INFO L138 Inliner]: procedures = 203, calls = 1279, calls flagged for inlining = 87, calls inlined = 87, statements flattened = 3520 [2022-11-16 11:03:27,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:03:27,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:03:27,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:03:27,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:03:27,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:03:27" (1/1) ... [2022-11-16 11:03:27,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:03:27" (1/1) ... [2022-11-16 11:03:27,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:03:27" (1/1) ... [2022-11-16 11:03:27,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:03:27" (1/1) ... [2022-11-16 11:03:27,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:03:27" (1/1) ... [2022-11-16 11:03:27,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:03:27" (1/1) ... [2022-11-16 11:03:27,880 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:03:27" (1/1) ... [2022-11-16 11:03:27,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:03:27" (1/1) ... [2022-11-16 11:03:28,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:03:28,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:03:28,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:03:28,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:03:28,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:03:27" (1/1) ... [2022-11-16 11:03:28,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:03:28,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:03:28,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:03:28,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:03:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2022-11-16 11:03:28,141 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2022-11-16 11:03:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-11-16 11:03:28,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-11-16 11:03:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 11:03:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 11:03:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 11:03:28,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 11:03:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2022-11-16 11:03:28,143 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2022-11-16 11:03:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2022-11-16 11:03:28,144 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2022-11-16 11:03:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2022-11-16 11:03:28,144 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2022-11-16 11:03:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-16 11:03:28,145 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-16 11:03:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 11:03:28,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 11:03:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2022-11-16 11:03:28,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2022-11-16 11:03:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2022-11-16 11:03:28,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2022-11-16 11:03:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-16 11:03:28,146 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-16 11:03:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2022-11-16 11:03:28,146 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2022-11-16 11:03:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 11:03:28,147 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 11:03:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 11:03:28,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 11:03:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2022-11-16 11:03:28,148 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2022-11-16 11:03:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 11:03:28,148 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 11:03:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 11:03:28,148 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 11:03:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-11-16 11:03:28,149 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-11-16 11:03:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2022-11-16 11:03:28,149 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2022-11-16 11:03:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:03:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 11:03:28,150 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 11:03:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:03:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2022-11-16 11:03:28,151 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2022-11-16 11:03:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2022-11-16 11:03:28,151 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2022-11-16 11:03:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-16 11:03:28,152 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-16 11:03:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-16 11:03:28,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-16 11:03:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-16 11:03:28,153 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-16 11:03:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 11:03:28,153 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 11:03:28,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:03:28,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:03:28,156 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-11-16 11:03:28,156 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-11-16 11:03:28,156 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-16 11:03:28,156 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-16 11:03:28,156 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-16 11:03:28,157 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-16 11:03:28,157 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-11-16 11:03:28,157 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-11-16 11:03:28,157 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 11:03:28,158 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 11:03:28,158 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-16 11:03:28,158 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-16 11:03:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2022-11-16 11:03:28,159 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2022-11-16 11:03:28,160 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-16 11:03:28,160 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-16 11:03:28,160 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-16 11:03:28,160 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-16 11:03:28,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 11:03:28,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 11:03:28,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 11:03:28,161 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-16 11:03:28,161 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-16 11:03:28,162 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-16 11:03:28,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-16 11:03:28,162 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-16 11:03:28,162 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-16 11:03:28,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 11:03:28,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:03:28,163 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2022-11-16 11:03:28,163 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2022-11-16 11:03:28,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 11:03:28,164 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 11:03:28,164 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2022-11-16 11:03:28,164 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2022-11-16 11:03:28,165 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-11-16 11:03:28,165 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-11-16 11:03:28,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:03:28,166 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2022-11-16 11:03:28,167 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2022-11-16 11:03:28,167 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2022-11-16 11:03:28,167 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2022-11-16 11:03:28,168 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2022-11-16 11:03:28,168 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2022-11-16 11:03:28,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 11:03:28,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 11:03:28,169 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2022-11-16 11:03:28,169 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2022-11-16 11:03:28,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:03:28,170 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-11-16 11:03:28,170 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2022-11-16 11:03:28,170 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2022-11-16 11:03:28,170 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-11-16 11:03:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2022-11-16 11:03:28,171 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2022-11-16 11:03:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-16 11:03:28,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-16 11:03:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:03:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:03:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 11:03:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2022-11-16 11:03:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2022-11-16 11:03:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2022-11-16 11:03:28,177 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2022-11-16 11:03:28,178 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-16 11:03:28,179 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-16 11:03:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-16 11:03:28,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-16 11:03:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-16 11:03:28,183 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-16 11:03:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2022-11-16 11:03:28,188 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2022-11-16 11:03:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-16 11:03:28,188 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-16 11:03:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-16 11:03:28,189 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-16 11:03:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2022-11-16 11:03:28,189 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2022-11-16 11:03:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2022-11-16 11:03:28,189 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2022-11-16 11:03:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 11:03:28,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 11:03:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2022-11-16 11:03:28,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2022-11-16 11:03:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-16 11:03:28,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-16 11:03:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2022-11-16 11:03:28,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2022-11-16 11:03:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:03:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-16 11:03:28,191 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-16 11:03:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:03:28,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:03:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 11:03:28,192 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 11:03:28,950 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:03:28,956 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:03:29,213 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 11:04:00,287 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:04:00,317 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:04:00,317 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:04:00,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:04:00 BoogieIcfgContainer [2022-11-16 11:04:00,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:04:00,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:04:00,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:04:00,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:04:00,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:03:25" (1/3) ... [2022-11-16 11:04:00,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452ebfcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:04:00, skipping insertion in model container [2022-11-16 11:04:00,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:03:27" (2/3) ... [2022-11-16 11:04:00,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452ebfcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:04:00, skipping insertion in model container [2022-11-16 11:04:00,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:04:00" (3/3) ... [2022-11-16 11:04:00,335 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-16 11:04:00,362 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:04:00,362 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:04:00,503 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:04:00,511 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;@60333d97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:04:00,512 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:04:00,522 INFO L276 IsEmpty]: Start isEmpty. Operand has 1283 states, 892 states have (on average 1.3946188340807175) internal successors, (1244), 935 states have internal predecessors, (1244), 323 states have call successors, (323), 67 states have call predecessors, (323), 66 states have return successors, (319), 316 states have call predecessors, (319), 319 states have call successors, (319) [2022-11-16 11:04:00,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-16 11:04:00,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:04:00,540 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:00,541 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:04:00,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:00,547 INFO L85 PathProgramCache]: Analyzing trace with hash -794636801, now seen corresponding path program 1 times [2022-11-16 11:04:00,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:00,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974155097] [2022-11-16 11:04:00,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:00,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:01,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:04:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:01,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:04:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:01,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:04:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:01,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:04:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:01,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:04:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:01,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:04:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:01,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:04:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:01,800 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-16 11:04:01,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:01,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974155097] [2022-11-16 11:04:01,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974155097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:01,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:01,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:04:01,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241757345] [2022-11-16 11:04:01,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:01,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:04:01,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:01,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:04:01,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:04:01,867 INFO L87 Difference]: Start difference. First operand has 1283 states, 892 states have (on average 1.3946188340807175) internal successors, (1244), 935 states have internal predecessors, (1244), 323 states have call successors, (323), 67 states have call predecessors, (323), 66 states have return successors, (319), 316 states have call predecessors, (319), 319 states have call successors, (319) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-16 11:04:03,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:04:15,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:04:15,233 INFO L93 Difference]: Finished difference Result 4389 states and 6735 transitions. [2022-11-16 11:04:15,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:04:15,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 56 [2022-11-16 11:04:15,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:04:15,289 INFO L225 Difference]: With dead ends: 4389 [2022-11-16 11:04:15,290 INFO L226 Difference]: Without dead ends: 3092 [2022-11-16 11:04:15,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:04:15,314 INFO L413 NwaCegarLoop]: 1568 mSDtfsCounter, 4107 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 2222 mSolverCounterSat, 1916 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4424 SdHoareTripleChecker+Valid, 3652 SdHoareTripleChecker+Invalid, 4139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1916 IncrementalHoareTripleChecker+Valid, 2222 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:04:15,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4424 Valid, 3652 Invalid, 4139 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1916 Valid, 2222 Invalid, 1 Unknown, 0 Unchecked, 12.7s Time] [2022-11-16 11:04:15,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3092 states. [2022-11-16 11:04:15,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3092 to 2350. [2022-11-16 11:04:15,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2350 states, 1624 states have (on average 1.3688423645320198) internal successors, (2223), 1685 states have internal predecessors, (2223), 602 states have call successors, (602), 125 states have call predecessors, (602), 123 states have return successors, (590), 581 states have call predecessors, (590), 590 states have call successors, (590) [2022-11-16 11:04:15,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2350 states to 2350 states and 3415 transitions. [2022-11-16 11:04:15,717 INFO L78 Accepts]: Start accepts. Automaton has 2350 states and 3415 transitions. Word has length 56 [2022-11-16 11:04:15,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:04:15,719 INFO L495 AbstractCegarLoop]: Abstraction has 2350 states and 3415 transitions. [2022-11-16 11:04:15,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-16 11:04:15,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2350 states and 3415 transitions. [2022-11-16 11:04:15,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-16 11:04:15,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:04:15,734 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:15,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:04:15,734 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:04:15,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:15,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1135081056, now seen corresponding path program 1 times [2022-11-16 11:04:15,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:15,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168150085] [2022-11-16 11:04:15,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:15,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:16,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:04:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:16,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:04:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:16,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:04:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:16,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:04:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:16,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:04:16,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:16,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:04:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:16,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:04:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:16,332 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-16 11:04:16,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:16,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168150085] [2022-11-16 11:04:16,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168150085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:16,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:16,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:04:16,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564502507] [2022-11-16 11:04:16,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:16,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:04:16,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:16,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:04:16,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:04:16,337 INFO L87 Difference]: Start difference. First operand 2350 states and 3415 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-16 11:04:18,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:04:31,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:04:31,128 INFO L93 Difference]: Finished difference Result 8464 states and 12666 transitions. [2022-11-16 11:04:31,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:04:31,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 57 [2022-11-16 11:04:31,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:04:31,177 INFO L225 Difference]: With dead ends: 8464 [2022-11-16 11:04:31,177 INFO L226 Difference]: Without dead ends: 6129 [2022-11-16 11:04:31,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:04:31,192 INFO L413 NwaCegarLoop]: 1643 mSDtfsCounter, 3305 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 2829 mSolverCounterSat, 1079 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3622 SdHoareTripleChecker+Valid, 4376 SdHoareTripleChecker+Invalid, 3909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1079 IncrementalHoareTripleChecker+Valid, 2829 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:04:31,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3622 Valid, 4376 Invalid, 3909 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1079 Valid, 2829 Invalid, 1 Unknown, 0 Unchecked, 14.1s Time] [2022-11-16 11:04:31,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6129 states. [2022-11-16 11:04:31,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6129 to 4645. [2022-11-16 11:04:31,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4645 states, 3219 states have (on average 1.3703013358185772) internal successors, (4411), 3332 states have internal predecessors, (4411), 1182 states have call successors, (1182), 247 states have call predecessors, (1182), 243 states have return successors, (1164), 1149 states have call predecessors, (1164), 1164 states have call successors, (1164) [2022-11-16 11:04:31,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4645 states to 4645 states and 6757 transitions. [2022-11-16 11:04:31,523 INFO L78 Accepts]: Start accepts. Automaton has 4645 states and 6757 transitions. Word has length 57 [2022-11-16 11:04:31,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:04:31,524 INFO L495 AbstractCegarLoop]: Abstraction has 4645 states and 6757 transitions. [2022-11-16 11:04:31,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-16 11:04:31,524 INFO L276 IsEmpty]: Start isEmpty. Operand 4645 states and 6757 transitions. [2022-11-16 11:04:31,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-16 11:04:31,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:04:31,528 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:31,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:04:31,528 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:04:31,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:31,529 INFO L85 PathProgramCache]: Analyzing trace with hash -864814829, now seen corresponding path program 1 times [2022-11-16 11:04:31,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:31,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807151036] [2022-11-16 11:04:31,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:31,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:32,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:04:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:32,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:04:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:32,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:04:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:32,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:04:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:32,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:04:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:32,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:04:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:32,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 11:04:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:32,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 11:04:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:32,210 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-16 11:04:32,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:32,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807151036] [2022-11-16 11:04:32,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807151036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:32,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:32,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:04:32,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501924883] [2022-11-16 11:04:32,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:32,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:04:32,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:32,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:04:32,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:04:32,214 INFO L87 Difference]: Start difference. First operand 4645 states and 6757 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:04:34,262 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 [] [2022-11-16 11:04:36,302 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 [] [2022-11-16 11:04:45,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:04:45,287 INFO L93 Difference]: Finished difference Result 15185 states and 22397 transitions. [2022-11-16 11:04:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:04:45,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2022-11-16 11:04:45,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:04:45,374 INFO L225 Difference]: With dead ends: 15185 [2022-11-16 11:04:45,374 INFO L226 Difference]: Without dead ends: 10555 [2022-11-16 11:04:45,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:04:45,482 INFO L413 NwaCegarLoop]: 1733 mSDtfsCounter, 2323 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 834 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2594 SdHoareTripleChecker+Valid, 3609 SdHoareTripleChecker+Invalid, 2725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 834 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:04:45,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2594 Valid, 3609 Invalid, 2725 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [834 Valid, 1889 Invalid, 2 Unknown, 0 Unchecked, 12.4s Time] [2022-11-16 11:04:45,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10555 states. [2022-11-16 11:04:45,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10555 to 9027. [2022-11-16 11:04:46,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9027 states, 6250 states have (on average 1.37232) internal successors, (8577), 6458 states have internal predecessors, (8577), 2294 states have call successors, (2294), 487 states have call predecessors, (2294), 482 states have return successors, (2276), 2249 states have call predecessors, (2276), 2276 states have call successors, (2276) [2022-11-16 11:04:46,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9027 states to 9027 states and 13147 transitions. [2022-11-16 11:04:46,052 INFO L78 Accepts]: Start accepts. Automaton has 9027 states and 13147 transitions. Word has length 59 [2022-11-16 11:04:46,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:04:46,053 INFO L495 AbstractCegarLoop]: Abstraction has 9027 states and 13147 transitions. [2022-11-16 11:04:46,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:04:46,054 INFO L276 IsEmpty]: Start isEmpty. Operand 9027 states and 13147 transitions. [2022-11-16 11:04:46,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-16 11:04:46,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:04:46,057 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:46,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:04:46,058 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:04:46,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:46,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1177657796, now seen corresponding path program 1 times [2022-11-16 11:04:46,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:46,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935795554] [2022-11-16 11:04:46,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:46,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:46,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:04:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:46,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:04:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:46,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:04:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:46,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:04:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:46,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:04:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:46,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:04:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:46,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:04:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:46,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:04:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:46,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:04:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:46,675 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-16 11:04:46,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:46,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935795554] [2022-11-16 11:04:46,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935795554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:46,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:46,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:04:46,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744745557] [2022-11-16 11:04:46,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:46,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:04:46,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:46,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:04:46,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:04:46,679 INFO L87 Difference]: Start difference. First operand 9027 states and 13147 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 11:04:48,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:04:50,779 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 [] [2022-11-16 11:05:02,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:05:02,033 INFO L93 Difference]: Finished difference Result 32938 states and 49342 transitions. [2022-11-16 11:05:02,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:05:02,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 75 [2022-11-16 11:05:02,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:05:02,187 INFO L225 Difference]: With dead ends: 32938 [2022-11-16 11:05:02,187 INFO L226 Difference]: Without dead ends: 23923 [2022-11-16 11:05:02,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:05:02,235 INFO L413 NwaCegarLoop]: 1601 mSDtfsCounter, 3358 mSDsluCounter, 2667 mSDsCounter, 0 mSdLazyCounter, 2789 mSolverCounterSat, 1101 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3675 SdHoareTripleChecker+Valid, 4268 SdHoareTripleChecker+Invalid, 3892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1101 IncrementalHoareTripleChecker+Valid, 2789 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:05:02,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3675 Valid, 4268 Invalid, 3892 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1101 Valid, 2789 Invalid, 2 Unknown, 0 Unchecked, 14.2s Time] [2022-11-16 11:05:02,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23923 states. [2022-11-16 11:05:03,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23923 to 17978. [2022-11-16 11:05:03,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17978 states, 12461 states have (on average 1.3728432710055374) internal successors, (17107), 12865 states have internal predecessors, (17107), 4558 states have call successors, (4558), 966 states have call predecessors, (4558), 958 states have return successors, (4538), 4482 states have call predecessors, (4538), 4538 states have call successors, (4538) [2022-11-16 11:05:03,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17978 states to 17978 states and 26203 transitions. [2022-11-16 11:05:03,678 INFO L78 Accepts]: Start accepts. Automaton has 17978 states and 26203 transitions. Word has length 75 [2022-11-16 11:05:03,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:05:03,680 INFO L495 AbstractCegarLoop]: Abstraction has 17978 states and 26203 transitions. [2022-11-16 11:05:03,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 11:05:03,681 INFO L276 IsEmpty]: Start isEmpty. Operand 17978 states and 26203 transitions. [2022-11-16 11:05:03,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-16 11:05:03,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:05:03,686 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:03,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:05:03,687 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:05:03,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:03,687 INFO L85 PathProgramCache]: Analyzing trace with hash -462690004, now seen corresponding path program 1 times [2022-11-16 11:05:03,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:03,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356807452] [2022-11-16 11:05:03,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:03,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:06,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:05:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:06,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:05:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:06,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:05:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:06,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:05:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:06,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:05:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:06,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:05:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:06,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:05:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:06,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 11:05:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:07,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:05:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:07,312 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-16 11:05:07,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:07,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356807452] [2022-11-16 11:05:07,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356807452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:07,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:07,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:05:07,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811121912] [2022-11-16 11:05:07,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:07,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:05:07,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:07,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:05:07,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:05:07,315 INFO L87 Difference]: Start difference. First operand 17978 states and 26203 transitions. Second operand has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-16 11:05:09,370 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 [] [2022-11-16 11:05:11,398 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 [] [2022-11-16 11:05:51,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:05:51,548 INFO L93 Difference]: Finished difference Result 62706 states and 94481 transitions. [2022-11-16 11:05:51,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-16 11:05:51,549 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2022-11-16 11:05:51,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:05:51,962 INFO L225 Difference]: With dead ends: 62706 [2022-11-16 11:05:51,962 INFO L226 Difference]: Without dead ends: 44743 [2022-11-16 11:05:52,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=155, Invalid=901, Unknown=0, NotChecked=0, Total=1056 [2022-11-16 11:05:52,044 INFO L413 NwaCegarLoop]: 1743 mSDtfsCounter, 4338 mSDsluCounter, 16162 mSDsCounter, 0 mSdLazyCounter, 14480 mSolverCounterSat, 1518 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4728 SdHoareTripleChecker+Valid, 17905 SdHoareTripleChecker+Invalid, 16000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1518 IncrementalHoareTripleChecker+Valid, 14480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:05:52,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4728 Valid, 17905 Invalid, 16000 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1518 Valid, 14480 Invalid, 2 Unknown, 0 Unchecked, 40.6s Time] [2022-11-16 11:05:52,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44743 states. [2022-11-16 11:05:54,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44743 to 31278. [2022-11-16 11:05:54,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31278 states, 21667 states have (on average 1.3735173305026076) internal successors, (29760), 22378 states have internal predecessors, (29760), 7932 states have call successors, (7932), 1674 states have call predecessors, (7932), 1678 states have return successors, (7954), 7813 states have call predecessors, (7954), 7912 states have call successors, (7954) [2022-11-16 11:05:54,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31278 states to 31278 states and 45646 transitions. [2022-11-16 11:05:54,657 INFO L78 Accepts]: Start accepts. Automaton has 31278 states and 45646 transitions. Word has length 77 [2022-11-16 11:05:54,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:05:54,658 INFO L495 AbstractCegarLoop]: Abstraction has 31278 states and 45646 transitions. [2022-11-16 11:05:54,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-16 11:05:54,659 INFO L276 IsEmpty]: Start isEmpty. Operand 31278 states and 45646 transitions. [2022-11-16 11:05:54,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-16 11:05:54,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:05:54,663 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:54,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:05:54,664 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:05:54,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:54,665 INFO L85 PathProgramCache]: Analyzing trace with hash -486646534, now seen corresponding path program 1 times [2022-11-16 11:05:54,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:54,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977792534] [2022-11-16 11:05:54,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:54,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:55,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:05:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:55,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:05:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:55,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:05:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:55,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:05:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:55,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:05:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:55,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:05:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:55,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:05:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:55,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 11:05:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:55,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:05:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:55,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 11:05:55,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:55,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 11:05:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:55,736 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-16 11:05:55,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:55,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977792534] [2022-11-16 11:05:55,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977792534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:55,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:55,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:55,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915421188] [2022-11-16 11:05:55,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:55,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:05:55,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:55,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:05:55,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:05:55,740 INFO L87 Difference]: Start difference. First operand 31278 states and 45646 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 11:05:57,791 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 [] [2022-11-16 11:05:59,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:06:01,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:06:16,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:06:16,162 INFO L93 Difference]: Finished difference Result 72852 states and 108643 transitions. [2022-11-16 11:06:16,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:06:16,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2022-11-16 11:06:16,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:06:16,486 INFO L225 Difference]: With dead ends: 72852 [2022-11-16 11:06:16,487 INFO L226 Difference]: Without dead ends: 41589 [2022-11-16 11:06:16,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:06:16,636 INFO L413 NwaCegarLoop]: 2551 mSDtfsCounter, 2575 mSDsluCounter, 3934 mSDsCounter, 0 mSdLazyCounter, 3466 mSolverCounterSat, 778 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2886 SdHoareTripleChecker+Valid, 6485 SdHoareTripleChecker+Invalid, 4247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 778 IncrementalHoareTripleChecker+Valid, 3466 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:06:16,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2886 Valid, 6485 Invalid, 4247 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [778 Valid, 3466 Invalid, 3 Unknown, 0 Unchecked, 18.2s Time] [2022-11-16 11:06:16,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41589 states. [2022-11-16 11:06:18,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41589 to 31259. [2022-11-16 11:06:18,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31259 states, 21648 states have (on average 1.3731060606060606) internal successors, (29725), 22361 states have internal predecessors, (29725), 7932 states have call successors, (7932), 1674 states have call predecessors, (7932), 1678 states have return successors, (7954), 7811 states have call predecessors, (7954), 7912 states have call successors, (7954) [2022-11-16 11:06:18,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31259 states to 31259 states and 45611 transitions. [2022-11-16 11:06:18,920 INFO L78 Accepts]: Start accepts. Automaton has 31259 states and 45611 transitions. Word has length 92 [2022-11-16 11:06:18,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:06:18,921 INFO L495 AbstractCegarLoop]: Abstraction has 31259 states and 45611 transitions. [2022-11-16 11:06:18,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 11:06:18,921 INFO L276 IsEmpty]: Start isEmpty. Operand 31259 states and 45611 transitions. [2022-11-16 11:06:18,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:06:18,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:06:18,927 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-16 11:06:18,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:06:18,928 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:06:18,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:18,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1690198534, now seen corresponding path program 1 times [2022-11-16 11:06:18,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:18,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622133354] [2022-11-16 11:06:18,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:18,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:24,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:06:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:24,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:06:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:24,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:06:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:24,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:06:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:24,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:06:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:24,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:06:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:24,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:06:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:24,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:06:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:24,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:06:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:24,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:06:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:24,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-16 11:06:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:24,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-16 11:06:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:24,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:06:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:25,089 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-16 11:06:25,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:25,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622133354] [2022-11-16 11:06:25,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622133354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:25,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:25,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:06:25,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168147252] [2022-11-16 11:06:25,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:25,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:06:25,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:25,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:06:25,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:06:25,092 INFO L87 Difference]: Start difference. First operand 31259 states and 45611 transitions. Second operand has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 12 states have internal predecessors, (53), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-16 11:06:27,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:06:29,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:07:20,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:20,932 INFO L93 Difference]: Finished difference Result 93609 states and 140608 transitions. [2022-11-16 11:07:20,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-16 11:07:20,933 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 12 states have internal predecessors, (53), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 98 [2022-11-16 11:07:20,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:21,658 INFO L225 Difference]: With dead ends: 93609 [2022-11-16 11:07:21,659 INFO L226 Difference]: Without dead ends: 62365 [2022-11-16 11:07:21,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=193, Invalid=1367, Unknown=0, NotChecked=0, Total=1560 [2022-11-16 11:07:21,787 INFO L413 NwaCegarLoop]: 1745 mSDtfsCounter, 4589 mSDsluCounter, 19042 mSDsCounter, 0 mSdLazyCounter, 16753 mSolverCounterSat, 1663 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4972 SdHoareTripleChecker+Valid, 20787 SdHoareTripleChecker+Invalid, 18418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1663 IncrementalHoareTripleChecker+Valid, 16753 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:21,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4972 Valid, 20787 Invalid, 18418 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1663 Valid, 16753 Invalid, 2 Unknown, 0 Unchecked, 49.1s Time] [2022-11-16 11:07:21,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62365 states. [2022-11-16 11:07:25,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62365 to 36854. [2022-11-16 11:07:25,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36854 states, 25523 states have (on average 1.372996904752576) internal successors, (35043), 26365 states have internal predecessors, (35043), 9350 states have call successors, (9350), 1976 states have call predecessors, (9350), 1980 states have return successors, (9378), 9205 states have call predecessors, (9378), 9330 states have call successors, (9378) [2022-11-16 11:07:25,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36854 states to 36854 states and 53771 transitions. [2022-11-16 11:07:25,314 INFO L78 Accepts]: Start accepts. Automaton has 36854 states and 53771 transitions. Word has length 98 [2022-11-16 11:07:25,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:25,315 INFO L495 AbstractCegarLoop]: Abstraction has 36854 states and 53771 transitions. [2022-11-16 11:07:25,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 12 states have internal predecessors, (53), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-16 11:07:25,316 INFO L276 IsEmpty]: Start isEmpty. Operand 36854 states and 53771 transitions. [2022-11-16 11:07:25,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-16 11:07:25,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:25,323 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-16 11:07:25,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:07:25,324 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:07:25,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:25,325 INFO L85 PathProgramCache]: Analyzing trace with hash 423968476, now seen corresponding path program 1 times [2022-11-16 11:07:25,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:25,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957215263] [2022-11-16 11:07:25,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:25,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:29,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:07:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:29,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:07:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:29,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:07:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:29,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:07:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:29,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:07:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:29,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:07:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:29,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:07:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:29,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:07:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:29,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:07:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:29,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:07:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:29,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-16 11:07:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:29,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 11:07:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:30,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:07:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:30,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 11:07:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:30,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 11:07:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:30,429 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-16 11:07:30,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:30,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957215263] [2022-11-16 11:07:30,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957215263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:30,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:30,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:07:30,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138553213] [2022-11-16 11:07:30,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:30,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:07:30,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:30,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:07:30,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:07:30,433 INFO L87 Difference]: Start difference. First operand 36854 states and 53771 transitions. Second operand has 17 states, 15 states have (on average 4.0) internal successors, (60), 12 states have internal predecessors, (60), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-16 11:07:32,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:07:34,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:07:36,519 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 [] [2022-11-16 11:08:40,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:40,010 INFO L93 Difference]: Finished difference Result 79975 states and 119138 transitions. [2022-11-16 11:08:40,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-16 11:08:40,011 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 4.0) internal successors, (60), 12 states have internal predecessors, (60), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 110 [2022-11-16 11:08:40,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:40,209 INFO L225 Difference]: With dead ends: 79975 [2022-11-16 11:08:40,209 INFO L226 Difference]: Without dead ends: 43136 [2022-11-16 11:08:40,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=188, Invalid=1294, Unknown=0, NotChecked=0, Total=1482 [2022-11-16 11:08:40,306 INFO L413 NwaCegarLoop]: 2679 mSDtfsCounter, 3304 mSDsluCounter, 30877 mSDsCounter, 0 mSdLazyCounter, 21515 mSolverCounterSat, 1135 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3633 SdHoareTripleChecker+Valid, 33556 SdHoareTripleChecker+Invalid, 22653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1135 IncrementalHoareTripleChecker+Valid, 21515 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:40,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3633 Valid, 33556 Invalid, 22653 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1135 Valid, 21515 Invalid, 3 Unknown, 0 Unchecked, 63.1s Time] [2022-11-16 11:08:40,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43136 states. [2022-11-16 11:08:43,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43136 to 32157. [2022-11-16 11:08:43,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32157 states, 22246 states have (on average 1.3738649644879979) internal successors, (30563), 22981 states have internal predecessors, (30563), 8183 states have call successors, (8183), 1722 states have call predecessors, (8183), 1727 states have return successors, (8213), 8062 states have call predecessors, (8213), 8171 states have call successors, (8213) [2022-11-16 11:08:43,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32157 states to 32157 states and 46959 transitions. [2022-11-16 11:08:43,758 INFO L78 Accepts]: Start accepts. Automaton has 32157 states and 46959 transitions. Word has length 110 [2022-11-16 11:08:43,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:43,759 INFO L495 AbstractCegarLoop]: Abstraction has 32157 states and 46959 transitions. [2022-11-16 11:08:43,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 4.0) internal successors, (60), 12 states have internal predecessors, (60), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-16 11:08:43,759 INFO L276 IsEmpty]: Start isEmpty. Operand 32157 states and 46959 transitions. [2022-11-16 11:08:43,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-16 11:08:43,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:43,766 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:43,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:08:43,767 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:08:43,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:43,768 INFO L85 PathProgramCache]: Analyzing trace with hash -783325448, now seen corresponding path program 1 times [2022-11-16 11:08:43,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:43,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372114462] [2022-11-16 11:08:43,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:43,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:44,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:08:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:44,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:08:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:44,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:08:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:44,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:08:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:44,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:08:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:44,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:08:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:44,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:08:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:44,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 11:08:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:44,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:08:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:44,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 11:08:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:44,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 11:08:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:44,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:08:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:44,995 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-16 11:08:44,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:44,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372114462] [2022-11-16 11:08:44,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372114462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:44,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:44,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:08:44,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790032604] [2022-11-16 11:08:44,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:44,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:08:44,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:44,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:08:44,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:08:44,998 INFO L87 Difference]: Start difference. First operand 32157 states and 46959 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 11:08:47,052 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 [] [2022-11-16 11:08:49,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:09:17,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:09:22,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:22,420 INFO L93 Difference]: Finished difference Result 70020 states and 104511 transitions. [2022-11-16 11:09:22,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:09:22,420 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 104 [2022-11-16 11:09:22,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:22,575 INFO L225 Difference]: With dead ends: 70020 [2022-11-16 11:09:22,575 INFO L226 Difference]: Without dead ends: 37878 [2022-11-16 11:09:22,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:09:22,653 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 3947 mSDsluCounter, 3098 mSDsCounter, 0 mSdLazyCounter, 9524 mSolverCounterSat, 1877 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4202 SdHoareTripleChecker+Valid, 3967 SdHoareTripleChecker+Invalid, 11403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1877 IncrementalHoareTripleChecker+Valid, 9524 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:22,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4202 Valid, 3967 Invalid, 11403 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1877 Valid, 9524 Invalid, 2 Unknown, 0 Unchecked, 33.0s Time] [2022-11-16 11:09:22,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37878 states. [2022-11-16 11:09:25,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37878 to 25543. [2022-11-16 11:09:25,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25543 states, 17671 states have (on average 1.3733235244185389) internal successors, (24268), 18252 states have internal predecessors, (24268), 6495 states have call successors, (6495), 1374 states have call predecessors, (6495), 1376 states have return successors, (6518), 6399 states have call predecessors, (6518), 6485 states have call successors, (6518) [2022-11-16 11:09:25,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25543 states to 25543 states and 37281 transitions. [2022-11-16 11:09:25,571 INFO L78 Accepts]: Start accepts. Automaton has 25543 states and 37281 transitions. Word has length 104 [2022-11-16 11:09:25,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:25,571 INFO L495 AbstractCegarLoop]: Abstraction has 25543 states and 37281 transitions. [2022-11-16 11:09:25,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 11:09:25,572 INFO L276 IsEmpty]: Start isEmpty. Operand 25543 states and 37281 transitions. [2022-11-16 11:09:25,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-16 11:09:25,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:25,580 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-16 11:09:25,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:09:25,580 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:09:25,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:25,581 INFO L85 PathProgramCache]: Analyzing trace with hash 2070520370, now seen corresponding path program 1 times [2022-11-16 11:09:25,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:25,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56869512] [2022-11-16 11:09:25,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:25,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:26,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:09:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:26,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:09:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:26,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:09:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:26,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:09:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:26,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:09:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:26,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:09:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:26,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:09:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:27,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 11:09:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:27,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:09:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:27,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 11:09:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:27,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 11:09:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:27,147 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-16 11:09:27,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:09:27,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56869512] [2022-11-16 11:09:27,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56869512] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:09:27,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506858442] [2022-11-16 11:09:27,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:27,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:09:27,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:09:27,153 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:09:27,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:09:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:28,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 2688 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-16 11:09:28,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:09:29,031 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-16 11:09:29,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:09:29,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506858442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:29,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:09:29,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-11-16 11:09:29,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258837215] [2022-11-16 11:09:29,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:29,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:09:29,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:09:29,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:09:29,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:09:29,034 INFO L87 Difference]: Start difference. First operand 25543 states and 37281 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 11:09:31,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:31,802 INFO L93 Difference]: Finished difference Result 26684 states and 39091 transitions. [2022-11-16 11:09:31,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:09:31,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2022-11-16 11:09:31,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:31,867 INFO L225 Difference]: With dead ends: 26684 [2022-11-16 11:09:31,868 INFO L226 Difference]: Without dead ends: 15603 [2022-11-16 11:09:31,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:09:31,892 INFO L413 NwaCegarLoop]: 2148 mSDtfsCounter, 1452 mSDsluCounter, 7959 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 10107 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:31,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 10107 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:09:31,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15603 states. [2022-11-16 11:09:33,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15603 to 14522. [2022-11-16 11:09:33,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14522 states, 10051 states have (on average 1.3710078599144364) internal successors, (13780), 10379 states have internal predecessors, (13780), 3682 states have call successors, (3682), 787 states have call predecessors, (3682), 788 states have return successors, (3692), 3628 states have call predecessors, (3692), 3674 states have call successors, (3692) [2022-11-16 11:09:33,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14522 states to 14522 states and 21154 transitions. [2022-11-16 11:09:33,371 INFO L78 Accepts]: Start accepts. Automaton has 14522 states and 21154 transitions. Word has length 104 [2022-11-16 11:09:33,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:33,371 INFO L495 AbstractCegarLoop]: Abstraction has 14522 states and 21154 transitions. [2022-11-16 11:09:33,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 11:09:33,371 INFO L276 IsEmpty]: Start isEmpty. Operand 14522 states and 21154 transitions. [2022-11-16 11:09:33,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-16 11:09:33,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:33,379 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-16 11:09:33,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:09:33,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 11:09:33,592 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:09:33,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:33,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1152994141, now seen corresponding path program 1 times [2022-11-16 11:09:33,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:33,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811774907] [2022-11-16 11:09:33,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:33,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:34,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:09:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:34,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:09:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:34,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:09:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:34,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:09:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:34,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:09:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:34,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:09:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:34,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:09:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:34,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 11:09:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:34,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:09:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:34,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 11:09:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:34,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 11:09:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:35,010 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-16 11:09:35,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:09:35,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811774907] [2022-11-16 11:09:35,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811774907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:35,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:35,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:09:35,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195936741] [2022-11-16 11:09:35,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:35,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:09:35,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:09:35,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:09:35,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:09:35,013 INFO L87 Difference]: Start difference. First operand 14522 states and 21154 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 9 states have internal predecessors, (67), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-16 11:09:37,054 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 [] [2022-11-16 11:09:59,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:59,949 INFO L93 Difference]: Finished difference Result 20281 states and 30816 transitions. [2022-11-16 11:09:59,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:09:59,949 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 9 states have internal predecessors, (67), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2022-11-16 11:09:59,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:10:00,039 INFO L225 Difference]: With dead ends: 20281 [2022-11-16 11:10:00,039 INFO L226 Difference]: Without dead ends: 15858 [2022-11-16 11:10:00,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:10:00,066 INFO L413 NwaCegarLoop]: 1841 mSDtfsCounter, 2485 mSDsluCounter, 12180 mSDsCounter, 0 mSdLazyCounter, 7544 mSolverCounterSat, 1045 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2656 SdHoareTripleChecker+Valid, 14021 SdHoareTripleChecker+Invalid, 8590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1045 IncrementalHoareTripleChecker+Valid, 7544 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:10:00,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2656 Valid, 14021 Invalid, 8590 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1045 Valid, 7544 Invalid, 1 Unknown, 0 Unchecked, 22.4s Time] [2022-11-16 11:10:00,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15858 states. [2022-11-16 11:10:01,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15858 to 10126. [2022-11-16 11:10:01,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10126 states, 7011 states have (on average 1.3685636856368564) internal successors, (9595), 7240 states have internal predecessors, (9595), 2561 states have call successors, (2561), 553 states have call predecessors, (2561), 553 states have return successors, (2565), 2521 states have call predecessors, (2565), 2553 states have call successors, (2565) [2022-11-16 11:10:01,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10126 states to 10126 states and 14721 transitions. [2022-11-16 11:10:01,444 INFO L78 Accepts]: Start accepts. Automaton has 10126 states and 14721 transitions. Word has length 107 [2022-11-16 11:10:01,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:10:01,445 INFO L495 AbstractCegarLoop]: Abstraction has 10126 states and 14721 transitions. [2022-11-16 11:10:01,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 9 states have internal predecessors, (67), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-16 11:10:01,445 INFO L276 IsEmpty]: Start isEmpty. Operand 10126 states and 14721 transitions. [2022-11-16 11:10:01,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-16 11:10:01,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:10:01,453 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-16 11:10:01,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:10:01,453 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:10:01,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:10:01,454 INFO L85 PathProgramCache]: Analyzing trace with hash 953679506, now seen corresponding path program 1 times [2022-11-16 11:10:01,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:10:01,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982528956] [2022-11-16 11:10:01,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:10:01,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:10:01,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:02,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:10:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:02,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:10:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:02,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:10:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:02,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:10:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:02,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:10:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:02,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:10:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:02,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:10:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:02,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 11:10:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:02,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:10:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:02,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 11:10:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:02,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 11:10:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:02,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 11:10:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:02,477 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-16 11:10:02,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:10:02,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982528956] [2022-11-16 11:10:02,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982528956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:10:02,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:10:02,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:10:02,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244825746] [2022-11-16 11:10:02,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:10:02,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:10:02,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:10:02,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:10:02,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:10:02,480 INFO L87 Difference]: Start difference. First operand 10126 states and 14721 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 11:10:04,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:10:20,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:10:20,370 INFO L93 Difference]: Finished difference Result 23551 states and 35010 transitions. [2022-11-16 11:10:20,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:10:20,371 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2022-11-16 11:10:20,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:10:20,420 INFO L225 Difference]: With dead ends: 23551 [2022-11-16 11:10:20,420 INFO L226 Difference]: Without dead ends: 13440 [2022-11-16 11:10:20,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:10:20,446 INFO L413 NwaCegarLoop]: 1675 mSDtfsCounter, 2162 mSDsluCounter, 6659 mSDsCounter, 0 mSdLazyCounter, 4551 mSolverCounterSat, 894 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 8334 SdHoareTripleChecker+Invalid, 5446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 894 IncrementalHoareTripleChecker+Valid, 4551 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:10:20,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2256 Valid, 8334 Invalid, 5446 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [894 Valid, 4551 Invalid, 1 Unknown, 0 Unchecked, 15.9s Time] [2022-11-16 11:10:20,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13440 states. [2022-11-16 11:10:21,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13440 to 10108. [2022-11-16 11:10:21,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10108 states, 6999 states have (on average 1.3686240891555936) internal successors, (9579), 7228 states have internal predecessors, (9579), 2557 states have call successors, (2557), 549 states have call predecessors, (2557), 551 states have return successors, (2561), 2519 states have call predecessors, (2561), 2549 states have call successors, (2561) [2022-11-16 11:10:21,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10108 states to 10108 states and 14697 transitions. [2022-11-16 11:10:21,420 INFO L78 Accepts]: Start accepts. Automaton has 10108 states and 14697 transitions. Word has length 110 [2022-11-16 11:10:21,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:10:21,420 INFO L495 AbstractCegarLoop]: Abstraction has 10108 states and 14697 transitions. [2022-11-16 11:10:21,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 11:10:21,421 INFO L276 IsEmpty]: Start isEmpty. Operand 10108 states and 14697 transitions. [2022-11-16 11:10:21,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-16 11:10:21,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:10:21,428 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-16 11:10:21,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:10:21,429 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:10:21,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:10:21,430 INFO L85 PathProgramCache]: Analyzing trace with hash 137991426, now seen corresponding path program 1 times [2022-11-16 11:10:21,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:10:21,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368030781] [2022-11-16 11:10:21,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:10:21,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:10:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:22,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:10:22,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:22,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:10:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:22,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:10:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:22,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:10:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:22,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:10:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:22,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:10:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:22,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:10:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:22,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 11:10:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:22,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:10:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:22,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 11:10:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 11:10:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:22,281 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-16 11:10:22,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:10:22,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368030781] [2022-11-16 11:10:22,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368030781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:10:22,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:10:22,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:10:22,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085474902] [2022-11-16 11:10:22,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:10:22,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:10:22,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:10:22,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:10:22,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:10:22,285 INFO L87 Difference]: Start difference. First operand 10108 states and 14697 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-16 11:10:24,335 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 [] [2022-11-16 11:10:35,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:10:35,159 INFO L93 Difference]: Finished difference Result 19221 states and 28406 transitions. [2022-11-16 11:10:35,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:10:35,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2022-11-16 11:10:35,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:10:35,195 INFO L225 Difference]: With dead ends: 19221 [2022-11-16 11:10:35,195 INFO L226 Difference]: Without dead ends: 9128 [2022-11-16 11:10:35,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:10:35,218 INFO L413 NwaCegarLoop]: 1525 mSDtfsCounter, 3351 mSDsluCounter, 3423 mSDsCounter, 0 mSdLazyCounter, 2697 mSolverCounterSat, 1355 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3585 SdHoareTripleChecker+Valid, 4948 SdHoareTripleChecker+Invalid, 4053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1355 IncrementalHoareTripleChecker+Valid, 2697 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:10:35,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3585 Valid, 4948 Invalid, 4053 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1355 Valid, 2697 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2022-11-16 11:10:35,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9128 states. [2022-11-16 11:10:35,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9128 to 6904. [2022-11-16 11:10:35,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6904 states, 4779 states have (on average 1.3615819209039548) internal successors, (6507), 4936 states have internal predecessors, (6507), 1735 states have call successors, (1735), 387 states have call predecessors, (1735), 389 states have return successors, (1733), 1706 states have call predecessors, (1733), 1727 states have call successors, (1733) [2022-11-16 11:10:35,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6904 states to 6904 states and 9975 transitions. [2022-11-16 11:10:35,960 INFO L78 Accepts]: Start accepts. Automaton has 6904 states and 9975 transitions. Word has length 109 [2022-11-16 11:10:35,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:10:35,961 INFO L495 AbstractCegarLoop]: Abstraction has 6904 states and 9975 transitions. [2022-11-16 11:10:35,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-16 11:10:35,961 INFO L276 IsEmpty]: Start isEmpty. Operand 6904 states and 9975 transitions. [2022-11-16 11:10:35,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-16 11:10:35,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:10:35,965 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-11-16 11:10:35,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:10:35,965 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:10:35,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:10:35,966 INFO L85 PathProgramCache]: Analyzing trace with hash -178192053, now seen corresponding path program 1 times [2022-11-16 11:10:35,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:10:35,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686841411] [2022-11-16 11:10:35,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:10:35,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:10:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:38,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:10:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:10:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:38,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:10:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:38,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:10:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:38,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:10:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:38,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:10:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:38,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:10:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:38,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:10:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:38,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:10:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:39,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:10:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:39,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-16 11:10:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:39,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 11:10:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:39,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:10:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:39,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 11:10:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:39,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 11:10:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:39,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:10:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:39,526 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-16 11:10:39,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:10:39,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686841411] [2022-11-16 11:10:39,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686841411] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:10:39,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100369362] [2022-11-16 11:10:39,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:10:39,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:10:39,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:10:39,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:10:39,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:10:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:43,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 2725 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-16 11:10:43,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:10:45,145 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-11-16 11:10:45,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:10:45,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100369362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:10:45,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:10:45,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [16] total 21 [2022-11-16 11:10:45,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932367087] [2022-11-16 11:10:45,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:10:45,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:10:45,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:10:45,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:10:45,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:10:45,148 INFO L87 Difference]: Start difference. First operand 6904 states and 9975 transitions. Second operand has 15 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2022-11-16 11:10:47,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:10:47,939 INFO L93 Difference]: Finished difference Result 10478 states and 15090 transitions. [2022-11-16 11:10:47,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:10:47,940 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) Word has length 119 [2022-11-16 11:10:47,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:10:47,959 INFO L225 Difference]: With dead ends: 10478 [2022-11-16 11:10:47,959 INFO L226 Difference]: Without dead ends: 4657 [2022-11-16 11:10:47,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 139 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=78, Invalid=624, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:10:47,977 INFO L413 NwaCegarLoop]: 1987 mSDtfsCounter, 260 mSDsluCounter, 23372 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 25359 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:10:47,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 25359 Invalid, 349 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:10:47,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4657 states. [2022-11-16 11:10:48,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4657 to 4643. [2022-11-16 11:10:48,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 3218 states have (on average 1.3576755748912368) internal successors, (4369), 3320 states have internal predecessors, (4369), 1162 states have call successors, (1162), 263 states have call predecessors, (1162), 262 states have return successors, (1158), 1143 states have call predecessors, (1158), 1155 states have call successors, (1158) [2022-11-16 11:10:48,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 6689 transitions. [2022-11-16 11:10:48,528 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 6689 transitions. Word has length 119 [2022-11-16 11:10:48,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:10:48,528 INFO L495 AbstractCegarLoop]: Abstraction has 4643 states and 6689 transitions. [2022-11-16 11:10:48,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2022-11-16 11:10:48,529 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 6689 transitions. [2022-11-16 11:10:48,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-16 11:10:48,532 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:10:48,532 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-16 11:10:48,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:10:48,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:10:48,733 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:10:48,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:10:48,734 INFO L85 PathProgramCache]: Analyzing trace with hash -10936870, now seen corresponding path program 1 times [2022-11-16 11:10:48,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:10:48,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310625071] [2022-11-16 11:10:48,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:10:48,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:10:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:49,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:10:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:49,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:10:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:49,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:10:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:49,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:10:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:49,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:10:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:49,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:10:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:49,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:10:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:49,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 11:10:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:49,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:10:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:49,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 11:10:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:49,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 11:10:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:49,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 11:10:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:49,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 11:10:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:49,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 11:10:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:49,409 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-16 11:10:49,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:10:49,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310625071] [2022-11-16 11:10:49,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310625071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:10:49,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:10:49,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:10:49,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815451089] [2022-11-16 11:10:49,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:10:49,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:10:49,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:10:49,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:10:49,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:10:49,415 INFO L87 Difference]: Start difference. First operand 4643 states and 6689 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 11:10:51,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:10:53,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:10:55,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:11:21,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:11:21,659 INFO L93 Difference]: Finished difference Result 6123 states and 9183 transitions. [2022-11-16 11:11:21,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:11:21,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2022-11-16 11:11:21,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:11:21,680 INFO L225 Difference]: With dead ends: 6123 [2022-11-16 11:11:21,680 INFO L226 Difference]: Without dead ends: 6120 [2022-11-16 11:11:21,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:11:21,683 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 4182 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 6918 mSolverCounterSat, 2471 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4440 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 9392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2471 IncrementalHoareTripleChecker+Valid, 6918 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:11:21,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4440 Valid, 1771 Invalid, 9392 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2471 Valid, 6918 Invalid, 3 Unknown, 0 Unchecked, 30.7s Time] [2022-11-16 11:11:21,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6120 states. [2022-11-16 11:11:22,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6120 to 4642. [2022-11-16 11:11:22,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4642 states, 3218 states have (on average 1.3567433188315725) internal successors, (4366), 3319 states have internal predecessors, (4366), 1161 states have call successors, (1161), 263 states have call predecessors, (1161), 262 states have return successors, (1158), 1143 states have call predecessors, (1158), 1155 states have call successors, (1158) [2022-11-16 11:11:22,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4642 states to 4642 states and 6685 transitions. [2022-11-16 11:11:22,206 INFO L78 Accepts]: Start accepts. Automaton has 4642 states and 6685 transitions. Word has length 120 [2022-11-16 11:11:22,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:11:22,206 INFO L495 AbstractCegarLoop]: Abstraction has 4642 states and 6685 transitions. [2022-11-16 11:11:22,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 11:11:22,207 INFO L276 IsEmpty]: Start isEmpty. Operand 4642 states and 6685 transitions. [2022-11-16 11:11:22,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-16 11:11:22,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:11:22,211 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-11-16 11:11:22,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:11:22,211 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:11:22,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:22,212 INFO L85 PathProgramCache]: Analyzing trace with hash -183842682, now seen corresponding path program 1 times [2022-11-16 11:11:22,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:22,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250435477] [2022-11-16 11:11:22,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:22,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:23,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:11:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:23,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:11:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:23,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:11:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:23,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:11:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:23,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:11:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:23,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:11:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:23,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:11:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:23,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 11:11:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:23,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:11:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:23,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 11:11:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:23,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 11:11:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:23,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 11:11:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:23,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 11:11:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:23,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:11:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:23,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-16 11:11:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:23,761 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-16 11:11:23,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:23,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250435477] [2022-11-16 11:11:23,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250435477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:23,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:23,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:11:23,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97610591] [2022-11-16 11:11:23,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:23,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:11:23,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:23,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:11:23,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:11:23,765 INFO L87 Difference]: Start difference. First operand 4642 states and 6685 transitions. Second operand has 15 states, 15 states have (on average 4.8) internal successors, (72), 11 states have internal predecessors, (72), 3 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-16 11:11:25,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:11:27,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:11:29,878 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 [] [2022-11-16 11:12:21,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:12:21,279 INFO L93 Difference]: Finished difference Result 9704 states and 14300 transitions. [2022-11-16 11:12:21,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:12:21,280 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.8) internal successors, (72), 11 states have internal predecessors, (72), 3 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 124 [2022-11-16 11:12:21,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:12:21,298 INFO L225 Difference]: With dead ends: 9704 [2022-11-16 11:12:21,298 INFO L226 Difference]: Without dead ends: 6111 [2022-11-16 11:12:21,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=450, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:12:21,307 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 2806 mSDsluCounter, 5942 mSDsCounter, 0 mSdLazyCounter, 18622 mSolverCounterSat, 1244 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3067 SdHoareTripleChecker+Valid, 6611 SdHoareTripleChecker+Invalid, 19869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1244 IncrementalHoareTripleChecker+Valid, 18622 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:12:21,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3067 Valid, 6611 Invalid, 19869 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1244 Valid, 18622 Invalid, 3 Unknown, 0 Unchecked, 55.5s Time] [2022-11-16 11:12:21,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6111 states. [2022-11-16 11:12:21,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6111 to 4612. [2022-11-16 11:12:21,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4612 states, 3196 states have (on average 1.3585732165206508) internal successors, (4342), 3297 states have internal predecessors, (4342), 1157 states have call successors, (1157), 259 states have call predecessors, (1157), 258 states have return successors, (1154), 1139 states have call predecessors, (1154), 1151 states have call successors, (1154) [2022-11-16 11:12:21,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4612 states to 4612 states and 6653 transitions. [2022-11-16 11:12:21,815 INFO L78 Accepts]: Start accepts. Automaton has 4612 states and 6653 transitions. Word has length 124 [2022-11-16 11:12:21,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:12:21,816 INFO L495 AbstractCegarLoop]: Abstraction has 4612 states and 6653 transitions. [2022-11-16 11:12:21,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.8) internal successors, (72), 11 states have internal predecessors, (72), 3 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-16 11:12:21,816 INFO L276 IsEmpty]: Start isEmpty. Operand 4612 states and 6653 transitions. [2022-11-16 11:12:21,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-16 11:12:21,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:12:21,820 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 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] [2022-11-16 11:12:21,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:12:21,820 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:12:21,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:21,820 INFO L85 PathProgramCache]: Analyzing trace with hash 119551567, now seen corresponding path program 1 times [2022-11-16 11:12:21,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:21,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299550228] [2022-11-16 11:12:21,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:21,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:22,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:12:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:22,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:12:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:22,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:12:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:22,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:12:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:22,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:12:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:22,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:12:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:22,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:12:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:22,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 11:12:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:22,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:12:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:22,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 11:12:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:22,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 11:12:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:22,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-16 11:12:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:22,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 11:12:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:22,303 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-16 11:12:22,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:22,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299550228] [2022-11-16 11:12:22,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299550228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:22,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:22,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:12:22,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368091270] [2022-11-16 11:12:22,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:22,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:12:22,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:22,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:12:22,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:12:22,306 INFO L87 Difference]: Start difference. First operand 4612 states and 6653 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-16 11:12:24,353 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 [] [2022-11-16 11:12:26,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:12:28,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:12:42,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:12:42,887 INFO L93 Difference]: Finished difference Result 9611 states and 14196 transitions. [2022-11-16 11:12:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:12:42,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 130 [2022-11-16 11:12:42,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:12:42,915 INFO L225 Difference]: With dead ends: 9611 [2022-11-16 11:12:42,916 INFO L226 Difference]: Without dead ends: 6082 [2022-11-16 11:12:42,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:12:42,927 INFO L413 NwaCegarLoop]: 2415 mSDtfsCounter, 2514 mSDsluCounter, 3708 mSDsCounter, 0 mSdLazyCounter, 3434 mSolverCounterSat, 780 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2822 SdHoareTripleChecker+Valid, 6123 SdHoareTripleChecker+Invalid, 4217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 780 IncrementalHoareTripleChecker+Valid, 3434 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:12:42,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2822 Valid, 6123 Invalid, 4217 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [780 Valid, 3434 Invalid, 3 Unknown, 0 Unchecked, 19.3s Time] [2022-11-16 11:12:42,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6082 states. [2022-11-16 11:12:43,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6082 to 3436. [2022-11-16 11:12:43,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3436 states, 2378 states have (on average 1.359125315391085) internal successors, (3232), 2452 states have internal predecessors, (3232), 866 states have call successors, (866), 193 states have call predecessors, (866), 191 states have return successors, (862), 853 states have call predecessors, (862), 862 states have call successors, (862) [2022-11-16 11:12:43,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3436 states to 3436 states and 4960 transitions. [2022-11-16 11:12:43,540 INFO L78 Accepts]: Start accepts. Automaton has 3436 states and 4960 transitions. Word has length 130 [2022-11-16 11:12:43,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:12:43,541 INFO L495 AbstractCegarLoop]: Abstraction has 3436 states and 4960 transitions. [2022-11-16 11:12:43,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-16 11:12:43,541 INFO L276 IsEmpty]: Start isEmpty. Operand 3436 states and 4960 transitions. [2022-11-16 11:12:43,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-16 11:12:43,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:12:43,545 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-11-16 11:12:43,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:12:43,545 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:12:43,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:43,545 INFO L85 PathProgramCache]: Analyzing trace with hash 948390935, now seen corresponding path program 1 times [2022-11-16 11:12:43,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:43,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512347353] [2022-11-16 11:12:43,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:43,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:43,810 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:44,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:44,139 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:12:44,140 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:12:44,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:12:44,146 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:12:44,150 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:12:44,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:12:44 BoogieIcfgContainer [2022-11-16 11:12:44,462 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:12:44,463 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:12:44,463 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:12:44,463 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:12:44,464 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:04:00" (3/4) ... [2022-11-16 11:12:44,467 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:12:44,467 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:12:44,468 INFO L158 Benchmark]: Toolchain (without parser) took 559234.71ms. Allocated memory was 94.4MB in the beginning and 3.8GB in the end (delta: 3.7GB). Free memory was 53.1MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2022-11-16 11:12:44,468 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory was 47.5MB in the beginning and 47.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:12:44,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2197.47ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 52.9MB in the beginning and 45.8MB in the end (delta: 7.1MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2022-11-16 11:12:44,469 INFO L158 Benchmark]: Boogie Procedure Inliner took 269.75ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 45.8MB in the beginning and 83.0MB in the end (delta: -37.2MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-11-16 11:12:44,470 INFO L158 Benchmark]: Boogie Preprocessor took 301.15ms. Allocated memory is still 144.7MB. Free memory was 83.0MB in the beginning and 85.6MB in the end (delta: -2.6MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2022-11-16 11:12:44,470 INFO L158 Benchmark]: RCFGBuilder took 32317.26ms. Allocated memory was 144.7MB in the beginning and 664.8MB in the end (delta: 520.1MB). Free memory was 85.6MB in the beginning and 362.7MB in the end (delta: -277.1MB). Peak memory consumption was 409.2MB. Max. memory is 16.1GB. [2022-11-16 11:12:44,471 INFO L158 Benchmark]: TraceAbstraction took 524136.31ms. Allocated memory was 664.8MB in the beginning and 3.8GB in the end (delta: 3.2GB). Free memory was 362.7MB in the beginning and 2.4GB in the end (delta: -2.0GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-11-16 11:12:44,471 INFO L158 Benchmark]: Witness Printer took 4.65ms. Allocated memory is still 3.8GB. Free memory is still 2.4GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:12:44,473 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory was 47.5MB in the beginning and 47.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2197.47ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 52.9MB in the beginning and 45.8MB in the end (delta: 7.1MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 269.75ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 45.8MB in the beginning and 83.0MB in the end (delta: -37.2MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 301.15ms. Allocated memory is still 144.7MB. Free memory was 83.0MB in the beginning and 85.6MB in the end (delta: -2.6MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * RCFGBuilder took 32317.26ms. Allocated memory was 144.7MB in the beginning and 664.8MB in the end (delta: 520.1MB). Free memory was 85.6MB in the beginning and 362.7MB in the end (delta: -277.1MB). Peak memory consumption was 409.2MB. Max. memory is 16.1GB. * TraceAbstraction took 524136.31ms. Allocated memory was 664.8MB in the beginning and 3.8GB in the end (delta: 3.2GB). Free memory was 362.7MB in the beginning and 2.4GB in the end (delta: -2.0GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 4.65ms. Allocated memory is still 3.8GB. Free memory is still 2.4GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 3238]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 5432. Possible FailurePath: [L3261] int LDV_IN_INTERRUPT = 1; [L3939] static ushort idVendor ; [L3965-L3966] static struct usb_qualifier_descriptor dev_qualifier = {10U, 6U, 512U, 7U, (unsigned char)0, (unsigned char)0, (unsigned char)0, 1U, (unsigned char)0}; [L3970-L3974] static char product_desc[40U] = { 'P', 'r', 'i', 'n', 't', 'e', 'r', ' ', 'G', 'a', 'd', 'g', 'e', 't', '\000'}; [L3263] int ref_cnt ; [L3963-L3964] static struct usb_endpoint_descriptor hs_ep_out_desc = {7U, 5U, (unsigned char)0, 2U, 512U, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L3940] static ushort idProduct ; [L3957-L3958] static struct usb_endpoint_descriptor fs_ep_out_desc = {7U, 5U, 0U, 2U, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L3967-L3968] static struct usb_descriptor_header const *hs_printer_function[11U] = { (struct usb_descriptor_header const *)(& otg_desc), (struct usb_descriptor_header const *)(& intf_desc), (struct usb_descriptor_header const *)(& hs_ep_in_desc), (struct usb_descriptor_header const *)(& hs_ep_out_desc), (struct usb_descriptor_header const *)0}; [L3937] static struct class *usb_gadget_class ; [L3938] static struct printer_dev usb_printer_gadget ; [L3950] static struct usb_otg_descriptor otg_desc = {3U, 9U, 1U}; [L3928-L3930] static char const shortname[8U] = { 'p', 'r', 'i', 'n', 't', 'e', 'r', '\000'}; [L3946] static unsigned int qlen = 10U; [L3262] int ldv_state_variable_2 ; [L3752] static unsigned int epnum ; [L4632-L4635] static struct file_operations const printer_io_operations = {& __this_module, 0, & printer_read, & printer_write, 0, 0, 0, & printer_poll, & printer_ioctl, 0, 0, & printer_open, 0, & printer_close, & printer_fsync, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L3267] int ldv_state_variable_0 ; [L3264] int ldv_state_variable_1 ; [L5895] int ldv_usb_gadget_chrdev = 0; [L3945] static char *iPNPstring ; [L3265] struct file *printer_io_operations_group2 ; [L3266] struct inode *printer_io_operations_group1 ; [L3969] static char manufacturer[50U] ; [L3988-L3990] static struct usb_string strings[4U] = { {1U, (char const *)(& manufacturer)}, {2U, (char const *)(& product_desc)}, {3U, (char const *)(& serial_num)}}; [L3936] static dev_t g_printer_devno ; [L3268] struct usb_gadget *printer_driver_group0 ; [L3947-L3949] static struct usb_device_descriptor device_desc = {18U, 1U, 512U, 0U, 0U, 0U, (unsigned char)0, 1317U, 42152U, (unsigned short)0, 1U, 2U, 3U, 1U}; [L3991] static struct usb_gadget_strings stringtab = {1033U, (struct usb_string *)(& strings)}; [L5894] int ldv_usb_gadget_class = 0; [L3953-L3954] static struct usb_interface_descriptor intf_desc = {9U, 4U, 0U, (unsigned char)0, 2U, 7U, 1U, 2U, 0U}; [L3931-L3935] static char const driver_desc[15U] = { 'P', 'r', 'i', 'n', 't', 'e', 'r', ' ', 'G', 'a', 'd', 'g', 'e', 't', '\000'}; [L3961-L3962] static struct usb_endpoint_descriptor hs_ep_in_desc = {7U, 5U, (unsigned char)0, 2U, 512U, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L3924-L3927] static struct mutex printer_mutex = {{1}, {{{{0U}, 3735899821U, 4294967295U, (void *)-1, {0, 0, "printer_mutex.wait_lock", 0, 0UL}}}}, {& printer_mutex.wait_list, & printer_mutex.wait_list}, 0, 0, (void *)(& printer_mutex), {0, 0, "printer_mutex", 0, 0UL}}; [L3943] static char *iProduct ; [L3944] static char *iSerialNum ; [L3976-L3987] static char pnp_string[1024U] = { 'X', 'X', 'M', 'F', 'G', ':', 'l', 'i', 'n', 'u', 'x', ';', 'M', 'D', 'L', ':', 'g', '_', 'p', 'r', 'i', 'n', 't', 'e', 'r', ';', 'C', 'L', 'S', ':', 'P', 'R', 'I', 'N', 'T', 'E', 'R', ';', 'S', 'N', ':', '1', ';', '\000'}; [L3951-L3952] static struct usb_config_descriptor config_desc = {9U, 2U, (unsigned short)0, 1U, 1U, 0U, 192U, 1U}; [L3959-L3960] static struct usb_descriptor_header const *fs_printer_function[11U] = { (struct usb_descriptor_header const *)(& otg_desc), (struct usb_descriptor_header const *)(& intf_desc), (struct usb_descriptor_header const *)(& fs_ep_in_desc), (struct usb_descriptor_header const *)(& fs_ep_out_desc), (struct usb_descriptor_header const *)0}; [L3975] static char serial_num[40U] = { '1', '\000'}; [L3955-L3956] static struct usb_endpoint_descriptor fs_ep_in_desc = {7U, 5U, 128U, 2U, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L5410-L5413] static struct usb_gadget_driver printer_driver = {(char *)(& driver_desc), 3, & printer_bind, & printer_unbind, & printer_setup, & printer_disconnect, 0, 0, {(char const *)(& shortname), 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}}; [L5465] int ldv_retval_0 ; [L5896] int ldv_usb_gadget = 0; [L5466] int ldv_retval_1 ; [L5470] int ldv_retval_2 ; [L5469] int ldv_retval_3 ; [L3942] static char *iManufacturer ; [L3941] static ushort bcdDevice ; VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5494] struct usb_ctrlrequest *ldvarg0 ; [L5495] void *tmp ; [L5496] char *ldvarg7 ; [L5497] void *tmp___0 ; [L5498] struct poll_table_struct *ldvarg3 ; [L5499] void *tmp___1 ; [L5500] loff_t *ldvarg5 ; [L5501] void *tmp___2 ; [L5502] size_t ldvarg6 ; [L5503] size_t tmp___3 ; [L5504] unsigned long ldvarg1 ; [L5505] unsigned long tmp___4 ; [L5506] loff_t *ldvarg8 ; [L5507] void *tmp___5 ; [L5508] int ldvarg4 ; [L5509] int tmp___6 ; [L5510] char *ldvarg10 ; [L5511] void *tmp___7 ; [L5512] size_t ldvarg9 ; [L5513] size_t tmp___8 ; [L5514] unsigned int ldvarg2 ; [L5515] unsigned int tmp___9 ; [L5516] int tmp___10 ; [L5517] int tmp___11 ; [L5518] int tmp___12 ; [L5519] int tmp___13 ; VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5521] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=8, \result={0:0}, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=8, strings={111:0}, stringtab={114:0}, tmp___0=-2, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5521] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(8UL)={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5521] tmp = ldv_zalloc(8UL) [L5522] ldvarg0 = (struct usb_ctrlrequest *)tmp VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5523] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=1, \result={0:0}, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=1, strings={111:0}, stringtab={114:0}, tmp___0=-3, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5523] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5523] tmp___0 = ldv_zalloc(1UL) [L5524] ldvarg7 = (char *)tmp___0 VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg7={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5525] CALL, EXPR ldv_zalloc(16UL) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=16, \result={0:0}, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=16, strings={111:0}, stringtab={114:0}, tmp___0=-4, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5525] RET, EXPR ldv_zalloc(16UL) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(16UL)={0:0}, ldvarg0={0:0}, ldvarg7={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5525] tmp___1 = ldv_zalloc(16UL) [L5526] ldvarg3 = (struct poll_table_struct *)tmp___1 VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg3={0:0}, ldvarg7={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5527] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=8, \result={0:0}, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=8, strings={111:0}, stringtab={114:0}, tmp___0=-5, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5527] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(8UL)={0:0}, ldvarg0={0:0}, ldvarg3={0:0}, ldvarg7={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5527] tmp___2 = ldv_zalloc(8UL) [L5528] ldvarg5 = (loff_t *)tmp___2 [L5529] tmp___3 = __VERIFIER_nondet_size_t() [L5530] ldvarg6 = tmp___3 [L5531] tmp___4 = __VERIFIER_nondet_ulong() [L5532] ldvarg1 = tmp___4 VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=4294967336, ldvarg3={0:0}, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967336, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5533] CALL, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=8, \result={0:0}, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=8, strings={111:0}, stringtab={114:0}, tmp___0=-7, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5533] RET, EXPR ldv_zalloc(8UL) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(8UL)={0:0}, ldvarg0={0:0}, ldvarg1=4294967336, ldvarg3={0:0}, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967336, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5533] tmp___5 = ldv_zalloc(8UL) [L5534] ldvarg8 = (loff_t *)tmp___5 [L5535] tmp___6 = __VERIFIER_nondet_int() [L5536] ldvarg4 = tmp___6 VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=4294967336, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967336, tmp___5={0:0}, tmp___6=-8, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5537] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=1, \result={0:0}, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=1, strings={111:0}, stringtab={114:0}, tmp___0=-9, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5537] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, ldvarg1=4294967336, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967336, tmp___5={0:0}, tmp___6=-8, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5537] tmp___7 = ldv_zalloc(1UL) [L5538] ldvarg10 = (char *)tmp___7 [L5539] tmp___8 = __VERIFIER_nondet_size_t() [L5540] ldvarg9 = tmp___8 [L5541] tmp___9 = __VERIFIER_nondet_uint() [L5542] ldvarg2 = tmp___9 [L5543] FCALL ldv_initialize() [L5544] ldv_state_variable_1 = 0 [L5545] ref_cnt = 0 [L5546] ldv_state_variable_0 = 1 [L5547] ldv_state_variable_2 = 0 VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=4294967336, ldvarg10={0:0}, ldvarg2=105, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967336, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=0, tmp___9=105, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5549] tmp___10 = __VERIFIER_nondet_int() [L5551] case 0: [L5598] case 1: VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=4294967336, ldvarg10={0:0}, ldvarg2=105, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967336, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=0, tmp___9=105, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5599] COND TRUE ldv_state_variable_0 != 0 [L5600] tmp___12 = __VERIFIER_nondet_int() [L5602] case 0: [L5610] case 1: VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, ldvarg0={0:0}, ldvarg1=4294967336, ldvarg10={0:0}, ldvarg2=105, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=1, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967336, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=0, tmp___9=105, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5611] COND TRUE ldv_state_variable_0 == 1 [L5612] CALL, EXPR init() [L5416] int status ; [L5417] void *tmp ; [L5418] long tmp___0 ; [L5419] long tmp___1 ; [L5421] CALL, EXPR ldv_create_class() [L5899] void *is_got ; VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5901] CALL, EXPR ldv_malloc(sizeof(struct class)) VAL [\old(size)=120, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3184] void *p ; [L3185] void *tmp ; [L3186] int tmp___0 ; [L3188] tmp___0 = __VERIFIER_nondet_int() [L3189] COND TRUE tmp___0 != 0 [L3190] return ((void *)0); VAL [\old(size)=120, \result={0:0}, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=120, strings={111:0}, stringtab={114:0}, tmp___0=1, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5901] RET, EXPR ldv_malloc(sizeof(struct class)) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct class))={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5901] is_got = ldv_malloc(sizeof(struct class)) [L5902] COND TRUE (unsigned long )is_got <= 2012UL VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, is_got={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5903] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, is_got={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5907] COND TRUE ldv_usb_gadget_class == 0 VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, is_got={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5911] ldv_usb_gadget_class = 1 VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, is_got={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5914] return (is_got); VAL [\result={0:0}, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, is_got={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5421] RET, EXPR ldv_create_class() [L5421] tmp = ldv_create_class() [L5422] usb_gadget_class = (struct class *)tmp VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5423] CALL, EXPR IS_ERR((void const *)usb_gadget_class) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5736] long tmp ; VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, ptr={0:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5738] CALL, EXPR ldv_is_err(ptr) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5861] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, ptr={0:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5738] RET, EXPR ldv_is_err(ptr) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_is_err(ptr)=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, ptr={0:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5738] tmp = ldv_is_err(ptr) [L5739] return (tmp); VAL [\result=0, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, ptr={0:0}, ptr={0:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5423] RET, EXPR IS_ERR((void const *)usb_gadget_class) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, IS_ERR((void const *)usb_gadget_class)=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5423] tmp___1 = IS_ERR((void const *)usb_gadget_class) [L5424] COND FALSE !(tmp___1 != 0L) [L5432] CALL, EXPR ldv_alloc_chrdev_region_7(& g_printer_devno, 0U, 1U, "USB printer gadget") [L5762] ldv_func_ret_type ldv_func_res ; [L5763] int tmp ; [L5764] int tmp___0 ; [L5766] CALL, EXPR alloc_chrdev_region(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3, ldv_func_arg4) [L6074] return __VERIFIER_nondet_int(); [L5766] RET, EXPR alloc_chrdev_region(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3, ldv_func_arg4) [L5766] tmp = alloc_chrdev_region(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3, ldv_func_arg4) [L5767] ldv_func_res = tmp [L5768] CALL, EXPR ldv_register_chrdev_region() [L5954] int is_reg ; VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5956] CALL, EXPR ldv_undef_int_nonpositive() VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5846] int ret ; [L5847] int tmp ; [L5849] CALL, EXPR ldv_undef_int() [L3220] int tmp ; [L3222] tmp = __VERIFIER_nondet_int() [L3223] return (tmp); VAL [\result=0, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5849] RET, EXPR ldv_undef_int() [L5849] tmp = ldv_undef_int() [L5850] ret = tmp VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, ret=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5851] COND TRUE ret <= 0 VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, ret=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5855] return (ret); VAL [\result=0, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, ret=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5956] RET, EXPR ldv_undef_int_nonpositive() VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_undef_int_nonpositive()=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5956] is_reg = ldv_undef_int_nonpositive() [L5957] COND TRUE ! is_reg VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5958] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5962] COND TRUE ldv_usb_gadget_chrdev == 0 VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=0, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5966] ldv_usb_gadget_chrdev = 1 VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5969] return (is_reg); VAL [\result=0, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5768] RET, EXPR ldv_register_chrdev_region() [L5768] tmp___0 = ldv_register_chrdev_region() [L5769] return (tmp___0); VAL [\old(ldv_func_arg2)=0, \old(ldv_func_arg3)=1, \result=0, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, ldv_func_arg1={112:0}, ldv_func_arg1={112:0}, ldv_func_arg2=0, ldv_func_arg3=1, ldv_func_arg4={94:0}, ldv_func_arg4={94:0}, ldv_func_res=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, tmp___0=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5432] RET, EXPR ldv_alloc_chrdev_region_7(& g_printer_devno, 0U, 1U, "USB printer gadget") [L5432] status = ldv_alloc_chrdev_region_7(& g_printer_devno, 0U, 1U, "USB printer gadget") [L5433] COND FALSE !(status != 0) [L5439] CALL, EXPR ldv_usb_gadget_register_driver_9(& printer_driver) [L5783] ldv_func_ret_type___0 ldv_func_res ; [L5784] int tmp ; [L5785] int tmp___0 ; [L5787] CALL, EXPR usb_gadget_register_driver(ldv_func_arg1) [L6157] return __VERIFIER_nondet_int(); [L5787] RET, EXPR usb_gadget_register_driver(ldv_func_arg1) [L5787] tmp = usb_gadget_register_driver(ldv_func_arg1) [L5788] ldv_func_res = tmp [L5789] CALL, EXPR ldv_register_usb_gadget() [L5989] int is_reg ; VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5991] CALL, EXPR ldv_undef_int_nonpositive() VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5846] int ret ; [L5847] int tmp ; [L5849] CALL, EXPR ldv_undef_int() [L3220] int tmp ; [L3222] tmp = __VERIFIER_nondet_int() [L3223] return (tmp); VAL [\result=0, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5849] RET, EXPR ldv_undef_int() [L5849] tmp = ldv_undef_int() [L5850] ret = tmp VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, ret=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5851] COND TRUE ret <= 0 VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, ret=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5855] return (ret); VAL [\result=0, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, ret=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5991] RET, EXPR ldv_undef_int_nonpositive() VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_undef_int_nonpositive()=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5991] is_reg = ldv_undef_int_nonpositive() [L5992] COND TRUE ! is_reg VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5993] COND TRUE ldv_usb_gadget == 0 VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=0, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5997] ldv_usb_gadget = 1 VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L6000] return (is_reg); VAL [\result=0, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, is_reg=0, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5789] RET, EXPR ldv_register_usb_gadget() [L5789] tmp___0 = ldv_register_usb_gadget() [L5790] return (tmp___0); VAL [\result=0, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, ldv_func_arg1={124:0}, ldv_func_arg1={124:0}, ldv_func_res=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp=0, tmp___0=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5439] RET, EXPR ldv_usb_gadget_register_driver_9(& printer_driver) [L5439] status = ldv_usb_gadget_register_driver_9(& printer_driver) [L5440] COND FALSE !(status != 0) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, status=0, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___1=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5446] return (status); VAL [\result=0, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, status=0, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___1=0, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5612] RET, EXPR init() [L5612] ldv_retval_2 = init() [L5613] COND FALSE !(ldv_retval_2 != 0) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, ldvarg0={0:0}, ldvarg1=4294967336, ldvarg10={0:0}, ldvarg2=105, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=1, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967336, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=0, tmp___9=105, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5618] COND TRUE ldv_retval_2 == 0 [L5619] ldv_state_variable_0 = 2 [L5620] ldv_state_variable_1 = 1 [L5621] CALL ldv_initialize_usb_gadget_driver_1() [L5473] void *tmp ; VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5475] CALL, EXPR ldv_zalloc(1072UL) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3202] void *p ; [L3203] void *tmp ; [L3204] int tmp___0 ; [L3206] tmp___0 = __VERIFIER_nondet_int() [L3207] COND TRUE tmp___0 != 0 [L3208] return ((void *)0); VAL [\old(size)=1072, \result={0:0}, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, size=1072, strings={111:0}, stringtab={114:0}, tmp___0=-10, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5475] RET, EXPR ldv_zalloc(1072UL) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, ldv_zalloc(1072UL)={0:0}, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5475] tmp = ldv_zalloc(1072UL) [L5476] printer_driver_group0 = (struct usb_gadget *)tmp VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5621] RET ldv_initialize_usb_gadget_driver_1() [L5549] tmp___10 = __VERIFIER_nondet_int() [L5551] case 0: [L5598] case 1: VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, ldvarg0={0:0}, ldvarg1=4294967336, ldvarg10={0:0}, ldvarg2=105, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=1, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967336, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=0, tmp___9=105, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5599] COND TRUE ldv_state_variable_0 != 0 [L5600] tmp___12 = __VERIFIER_nondet_int() [L5602] case 0: VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, ldvarg0={0:0}, ldvarg1=4294967336, ldvarg10={0:0}, ldvarg2=105, ldvarg3={0:0}, ldvarg4=-8, ldvarg5={0:0}, ldvarg6=18446744073709551610, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9=0, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10=1, tmp___12=0, tmp___2={0:0}, tmp___3=18446744073709551610, tmp___4=4294967336, tmp___5={0:0}, tmp___6=-8, tmp___7={0:0}, tmp___8=0, tmp___9=105, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5603] COND TRUE ldv_state_variable_0 == 2 && ref_cnt == 0 [L5604] CALL cleanup() [L5451] int status ; VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5453] FCALL mutex_lock_nested(& usb_printer_gadget.lock_printer_io, 0U) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5454] CALL ldv_class_destroy_12(usb_gadget_class) [L5813] FCALL class_destroy(ldv_func_arg1) VAL [__this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, ldv_func_arg1={0:0}, ldv_func_arg1={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5814] CALL ldv_unregister_class() VAL [\old(ldv_usb_gadget_class)=1, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5940] COND FALSE !(ldv_usb_gadget == 0) VAL [\old(ldv_usb_gadget_class)=1, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L5942] CALL ldv_error() VAL [\old(ldv_usb_gadget_class)=1, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] [L3238] reach_error() VAL [\old(ldv_usb_gadget_class)=1, __this_module={4294967387:4294967368}, bcdDevice=0, config_desc={120:0}, dev_qualifier={101:0}, device_desc={113:0}, driver_desc={116:0}, epnum=0, fs_ep_in_desc={123:0}, fs_ep_out_desc={104:0}, fs_printer_function={121:0}, g_printer_devno={112:0}, hs_ep_in_desc={117:0}, hs_ep_out_desc={103:0}, hs_printer_function={105:0}, idProduct=0, idVendor=0, iManufacturer={0:0}, intf_desc={115:0}, iPNPstring={0:0}, iProduct={0:0}, iSerialNum={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_usb_gadget=1, ldv_usb_gadget_chrdev=1, ldv_usb_gadget_class=1, manufacturer={110:0}, otg_desc={107:0}, pnp_string={119:0}, printer_driver={124:0}, printer_driver_group0={0:0}, printer_io_operations={109:0}, printer_io_operations_group1={0:0}, printer_io_operations_group2={0:0}, printer_mutex={118:0}, product_desc={102:0}, qlen=10, ref_cnt=0, serial_num={122:0}, shortname={108:0}, strings={111:0}, stringtab={114:0}, usb_gadget_class={0:0}, usb_printer_gadget={106:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 68 procedures, 1284 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 523.7s, OverallIterations: 18, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 459.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 mSolverCounterUnknown, 55405 SdHoareTripleChecker+Valid, 414.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51058 mSDsluCounter, 175879 SdHoareTripleChecker+Invalid, 387.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 146807 mSDsCounter, 20115 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119597 IncrementalHoareTripleChecker+Invalid, 139742 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20115 mSolverCounterUnsat, 29072 mSDtfsCounter, 119597 mSolverCounterSat, 2.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 877 GetRequests, 618 SyntacticMatches, 5 SemanticMatches, 254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 13.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36854occurred in iteration=7, InterpolantAutomatonStates: 220, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 24.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 100325 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 5.8s SatisfiabilityAnalysisTime, 28.8s InterpolantComputationTime, 2006 NumberOfCodeBlocks, 2006 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1855 ConstructedInterpolants, 0 QuantifiedInterpolants, 4552 SizeOfPredicates, 23 NumberOfNonLiveVariables, 5413 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 19 InterpolantComputations, 17 PerfectInterpolantSequences, 1352/1361 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 11:12:44,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8 --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 e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 --- 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-e04fb08 [2022-11-16 11:12:47,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:12:47,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:12:47,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:12:47,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:12:47,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:12:47,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:12:47,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:12:47,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:12:47,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:12:47,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:12:47,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:12:47,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:12:47,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:12:47,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:12:47,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:12:47,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:12:47,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:12:47,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:12:47,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:12:47,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:12:47,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:12:47,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:12:47,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:12:47,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:12:47,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:12:47,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:12:47,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:12:47,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:12:47,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:12:47,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:12:47,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:12:47,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:12:47,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:12:47,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:12:47,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:12:47,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:12:47,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:12:47,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:12:47,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:12:47,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:12:47,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 11:12:47,592 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:12:47,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:12:47,594 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:12:47,594 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:12:47,595 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:12:47,595 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:12:47,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:12:47,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:12:47,598 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:12:47,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:12:47,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:12:47,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:12:47,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:12:47,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:12:47,600 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:12:47,601 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 11:12:47,601 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 11:12:47,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:12:47,601 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:12:47,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:12:47,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:12:47,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:12:47,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:12:47,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:12:47,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:12:47,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:12:47,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:12:47,604 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 11:12:47,604 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 11:12:47,605 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:12:47,605 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:12:47,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:12:47,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 11:12:47,606 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 [2022-11-16 11:12:48,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:12:48,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:12:48,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:12:48,039 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:12:48,040 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:12:48,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-16 11:12:48,114 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/data/2ee3c41f0/6f338685c08d4cb0b36dc480107dc4cf/FLAGa092624ac [2022-11-16 11:12:49,133 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:12:49,134 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-16 11:12:49,178 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/data/2ee3c41f0/6f338685c08d4cb0b36dc480107dc4cf/FLAGa092624ac [2022-11-16 11:12:49,632 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/data/2ee3c41f0/6f338685c08d4cb0b36dc480107dc4cf [2022-11-16 11:12:49,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:12:49,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:12:49,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:12:49,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:12:49,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:12:49,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:12:49" (1/1) ... [2022-11-16 11:12:49,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c5d926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:49, skipping insertion in model container [2022-11-16 11:12:49,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:12:49" (1/1) ... [2022-11-16 11:12:49,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:12:49,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:12:50,701 WARN L229 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_332e7465-6220-4259-a8da-88e419795448/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2022-11-16 11:12:50,984 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-11-16 11:12:51,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:12:51,362 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-16 11:12:51,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:12:51,517 WARN L229 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_332e7465-6220-4259-a8da-88e419795448/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2022-11-16 11:12:51,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:12:51,819 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:12:51,958 WARN L229 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_332e7465-6220-4259-a8da-88e419795448/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2022-11-16 11:12:52,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:12:52,448 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:12:52,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:52 WrapperNode [2022-11-16 11:12:52,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:12:52,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:12:52,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:12:52,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:12:52,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:52" (1/1) ... [2022-11-16 11:12:52,577 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:52" (1/1) ... [2022-11-16 11:12:52,728 INFO L138 Inliner]: procedures = 219, calls = 1278, calls flagged for inlining = 89, calls inlined = 89, statements flattened = 3380 [2022-11-16 11:12:52,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:12:52,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:12:52,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:12:52,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:12:52,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:52" (1/1) ... [2022-11-16 11:12:52,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:52" (1/1) ... [2022-11-16 11:12:52,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:52" (1/1) ... [2022-11-16 11:12:52,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:52" (1/1) ... [2022-11-16 11:12:52,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:52" (1/1) ... [2022-11-16 11:12:52,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:52" (1/1) ... [2022-11-16 11:12:53,001 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:52" (1/1) ... [2022-11-16 11:12:53,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:52" (1/1) ... [2022-11-16 11:12:53,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:12:53,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:12:53,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:12:53,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:12:53,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:52" (1/1) ... [2022-11-16 11:12:53,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:12:53,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:53,076 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:53,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:12:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2022-11-16 11:12:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2022-11-16 11:12:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-11-16 11:12:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-11-16 11:12:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-16 11:12:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-16 11:12:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-16 11:12:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 11:12:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-16 11:12:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 11:12:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 11:12:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 11:12:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2022-11-16 11:12:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2022-11-16 11:12:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2022-11-16 11:12:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2022-11-16 11:12:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2022-11-16 11:12:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2022-11-16 11:12:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-16 11:12:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-16 11:12:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 11:12:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 11:12:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2022-11-16 11:12:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2022-11-16 11:12:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2022-11-16 11:12:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2022-11-16 11:12:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-16 11:12:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-16 11:12:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2022-11-16 11:12:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2022-11-16 11:12:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 11:12:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 11:12:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 11:12:53,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 11:12:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2022-11-16 11:12:53,148 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2022-11-16 11:12:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 11:12:53,148 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 11:12:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 11:12:53,149 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 11:12:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-11-16 11:12:53,149 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-11-16 11:12:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2022-11-16 11:12:53,150 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2022-11-16 11:12:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:12:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 11:12:53,150 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 11:12:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:12:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2022-11-16 11:12:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2022-11-16 11:12:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2022-11-16 11:12:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2022-11-16 11:12:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-16 11:12:53,154 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-16 11:12:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-16 11:12:53,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-16 11:12:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-16 11:12:53,155 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-16 11:12:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 11:12:53,156 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 11:12:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-16 11:12:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-16 11:12:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-16 11:12:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:12:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 11:12:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:12:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-11-16 11:12:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-11-16 11:12:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-16 11:12:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-16 11:12:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-16 11:12:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 11:12:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-16 11:12:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-16 11:12:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-16 11:12:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-16 11:12:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-11-16 11:12:53,161 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-11-16 11:12:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 11:12:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 11:12:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-16 11:12:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-16 11:12:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2022-11-16 11:12:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2022-11-16 11:12:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-16 11:12:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-16 11:12:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-16 11:12:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-16 11:12:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 11:12:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 11:12:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-16 11:12:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-16 11:12:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-16 11:12:53,203 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-16 11:12:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2022-11-16 11:12:53,203 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2022-11-16 11:12:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 11:12:53,203 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 11:12:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2022-11-16 11:12:53,204 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2022-11-16 11:12:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-11-16 11:12:53,204 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-11-16 11:12:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2022-11-16 11:12:53,204 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2022-11-16 11:12:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2022-11-16 11:12:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2022-11-16 11:12:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-16 11:12:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2022-11-16 11:12:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2022-11-16 11:12:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-16 11:12:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-16 11:12:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-16 11:12:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-16 11:12:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-16 11:12:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 11:12:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 11:12:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2022-11-16 11:12:53,207 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2022-11-16 11:12:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:12:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-11-16 11:12:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2022-11-16 11:12:53,207 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2022-11-16 11:12:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-11-16 11:12:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2022-11-16 11:12:53,208 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2022-11-16 11:12:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-16 11:12:53,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-16 11:12:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:12:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:12:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 11:12:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-16 11:12:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-16 11:12:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-16 11:12:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2022-11-16 11:12:53,209 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2022-11-16 11:12:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2022-11-16 11:12:53,210 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2022-11-16 11:12:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-16 11:12:53,210 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-16 11:12:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-16 11:12:53,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-16 11:12:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-16 11:12:53,210 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-16 11:12:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2022-11-16 11:12:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2022-11-16 11:12:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-16 11:12:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-16 11:12:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-16 11:12:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-16 11:12:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2022-11-16 11:12:53,212 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2022-11-16 11:12:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2022-11-16 11:12:53,212 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2022-11-16 11:12:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2022-11-16 11:12:53,212 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2022-11-16 11:12:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-16 11:12:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-16 11:12:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2022-11-16 11:12:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2022-11-16 11:12:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-16 11:12:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-16 11:12:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-16 11:12:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:12:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:12:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 11:12:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 11:12:54,096 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:12:54,100 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:12:54,231 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 11:13:45,647 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:13:45,672 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:13:45,673 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:13:45,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:13:45 BoogieIcfgContainer [2022-11-16 11:13:45,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:13:45,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:13:45,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:13:45,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:13:45,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:12:49" (1/3) ... [2022-11-16 11:13:45,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48fba4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:13:45, skipping insertion in model container [2022-11-16 11:13:45,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:52" (2/3) ... [2022-11-16 11:13:45,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48fba4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:13:45, skipping insertion in model container [2022-11-16 11:13:45,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:13:45" (3/3) ... [2022-11-16 11:13:45,689 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2022-11-16 11:13:45,713 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:13:45,713 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:13:45,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:13:45,820 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;@2683e960, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:13:45,821 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:13:45,831 INFO L276 IsEmpty]: Start isEmpty. Operand has 1244 states, 857 states have (on average 1.381563593932322) internal successors, (1184), 900 states have internal predecessors, (1184), 320 states have call successors, (320), 66 states have call predecessors, (320), 65 states have return successors, (316), 313 states have call predecessors, (316), 316 states have call successors, (316) [2022-11-16 11:13:45,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-16 11:13:45,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:13:45,853 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:13:45,854 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:13:45,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:45,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1211656686, now seen corresponding path program 1 times [2022-11-16 11:13:45,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:13:45,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017588032] [2022-11-16 11:13:45,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:45,884 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:13:45,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:13:45,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:13:45,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 11:13:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:48,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:13:48,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:13:48,203 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-16 11:13:48,204 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:13:48,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:13:48,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017588032] [2022-11-16 11:13:48,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017588032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:48,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:48,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:13:48,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367341132] [2022-11-16 11:13:48,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:48,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:13:48,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:13:48,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:13:48,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:13:48,260 INFO L87 Difference]: Start difference. First operand has 1244 states, 857 states have (on average 1.381563593932322) internal successors, (1184), 900 states have internal predecessors, (1184), 320 states have call successors, (320), 66 states have call predecessors, (320), 65 states have return successors, (316), 313 states have call predecessors, (316), 316 states have call successors, (316) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:13:50,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:13:51,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:13:51,208 INFO L93 Difference]: Finished difference Result 3500 states and 5197 transitions. [2022-11-16 11:13:51,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:13:51,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2022-11-16 11:13:51,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:13:51,267 INFO L225 Difference]: With dead ends: 3500 [2022-11-16 11:13:51,267 INFO L226 Difference]: Without dead ends: 2244 [2022-11-16 11:13:51,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:13:51,295 INFO L413 NwaCegarLoop]: 2072 mSDtfsCounter, 1634 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:13:51,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 3688 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-11-16 11:13:51,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2022-11-16 11:13:51,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 2238. [2022-11-16 11:13:51,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2238 states, 1528 states have (on average 1.3599476439790577) internal successors, (2078), 1588 states have internal predecessors, (2078), 586 states have call successors, (586), 124 states have call predecessors, (586), 123 states have return successors, (573), 567 states have call predecessors, (573), 573 states have call successors, (573) [2022-11-16 11:13:51,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2238 states to 2238 states and 3237 transitions. [2022-11-16 11:13:51,584 INFO L78 Accepts]: Start accepts. Automaton has 2238 states and 3237 transitions. Word has length 58 [2022-11-16 11:13:51,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:13:51,589 INFO L495 AbstractCegarLoop]: Abstraction has 2238 states and 3237 transitions. [2022-11-16 11:13:51,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:13:51,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2238 states and 3237 transitions. [2022-11-16 11:13:51,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-16 11:13:51,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:13:51,601 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:13:51,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:13:51,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:13:51,827 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:13:51,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:51,828 INFO L85 PathProgramCache]: Analyzing trace with hash -927809939, now seen corresponding path program 1 times [2022-11-16 11:13:51,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:13:51,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052664635] [2022-11-16 11:13:51,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:51,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:13:51,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:13:51,839 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:13:51,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 11:13:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:53,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:13:53,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:13:54,837 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-16 11:13:54,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:13:54,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:13:54,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052664635] [2022-11-16 11:13:54,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2052664635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:54,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:54,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:13:54,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154511782] [2022-11-16 11:13:54,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:54,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:13:54,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:13:54,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:13:54,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:13:54,841 INFO L87 Difference]: Start difference. First operand 2238 states and 3237 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-16 11:13:55,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:13:55,275 INFO L93 Difference]: Finished difference Result 4420 states and 6403 transitions. [2022-11-16 11:13:55,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:13:55,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 56 [2022-11-16 11:13:55,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:13:55,311 INFO L225 Difference]: With dead ends: 4420 [2022-11-16 11:13:55,311 INFO L226 Difference]: Without dead ends: 4396 [2022-11-16 11:13:55,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:13:55,315 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 1635 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 3573 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:13:55,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1635 Valid, 3573 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:13:55,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4396 states. [2022-11-16 11:13:55,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4396 to 4392. [2022-11-16 11:13:55,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4392 states, 3005 states have (on average 1.3594009983361064) internal successors, (4085), 3113 states have internal predecessors, (4085), 1146 states have call successors, (1146), 243 states have call predecessors, (1146), 240 states have return successors, (1134), 1119 states have call predecessors, (1134), 1134 states have call successors, (1134) [2022-11-16 11:13:55,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4392 states to 4392 states and 6365 transitions. [2022-11-16 11:13:55,591 INFO L78 Accepts]: Start accepts. Automaton has 4392 states and 6365 transitions. Word has length 56 [2022-11-16 11:13:55,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:13:55,592 INFO L495 AbstractCegarLoop]: Abstraction has 4392 states and 6365 transitions. [2022-11-16 11:13:55,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-16 11:13:55,593 INFO L276 IsEmpty]: Start isEmpty. Operand 4392 states and 6365 transitions. [2022-11-16 11:13:55,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-16 11:13:55,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:13:55,603 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:13:55,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:13:55,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:13:55,830 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:13:55,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:55,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1301720806, now seen corresponding path program 1 times [2022-11-16 11:13:55,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:13:55,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931280920] [2022-11-16 11:13:55,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:55,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:13:55,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:13:55,836 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:13:55,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-16 11:13:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:57,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 1455 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:13:57,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:13:58,555 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-16 11:13:58,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:13:58,556 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:13:58,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [931280920] [2022-11-16 11:13:58,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [931280920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:58,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:58,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:13:58,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608294716] [2022-11-16 11:13:58,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:58,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:13:58,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:13:58,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:13:58,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:13:58,558 INFO L87 Difference]: Start difference. First operand 4392 states and 6365 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-16 11:13:59,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:13:59,193 INFO L93 Difference]: Finished difference Result 13103 states and 19009 transitions. [2022-11-16 11:13:59,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:13:59,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 57 [2022-11-16 11:13:59,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:13:59,264 INFO L225 Difference]: With dead ends: 13103 [2022-11-16 11:13:59,264 INFO L226 Difference]: Without dead ends: 8726 [2022-11-16 11:13:59,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:13:59,287 INFO L413 NwaCegarLoop]: 2136 mSDtfsCounter, 1634 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 3755 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:13:59,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 3755 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:13:59,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8726 states. [2022-11-16 11:13:59,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8726 to 8715. [2022-11-16 11:13:59,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8715 states, 5970 states have (on average 1.3603015075376885) internal successors, (8121), 6178 states have internal predecessors, (8121), 2270 states have call successors, (2270), 479 states have call predecessors, (2270), 474 states have return successors, (2252), 2225 states have call predecessors, (2252), 2252 states have call successors, (2252) [2022-11-16 11:13:59,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8715 states to 8715 states and 12643 transitions. [2022-11-16 11:13:59,925 INFO L78 Accepts]: Start accepts. Automaton has 8715 states and 12643 transitions. Word has length 57 [2022-11-16 11:13:59,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:13:59,927 INFO L495 AbstractCegarLoop]: Abstraction has 8715 states and 12643 transitions. [2022-11-16 11:13:59,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-16 11:13:59,928 INFO L276 IsEmpty]: Start isEmpty. Operand 8715 states and 12643 transitions. [2022-11-16 11:13:59,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-16 11:13:59,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:13:59,935 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:13:59,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:14:00,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:14:00,159 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:14:00,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:00,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1908686028, now seen corresponding path program 1 times [2022-11-16 11:14:00,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:14:00,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457387847] [2022-11-16 11:14:00,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:00,161 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:14:00,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:14:00,162 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:14:00,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-16 11:14:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:02,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 1500 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:14:02,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:14:02,529 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-16 11:14:02,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:14:02,530 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:14:02,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457387847] [2022-11-16 11:14:02,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457387847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:02,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:02,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:14:02,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547627104] [2022-11-16 11:14:02,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:02,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:14:02,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:14:02,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:14:02,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:14:02,533 INFO L87 Difference]: Start difference. First operand 8715 states and 12643 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 11:14:03,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:14:03,389 INFO L93 Difference]: Finished difference Result 18564 states and 27130 transitions. [2022-11-16 11:14:03,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:14:03,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 75 [2022-11-16 11:14:03,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:14:03,493 INFO L225 Difference]: With dead ends: 18564 [2022-11-16 11:14:03,493 INFO L226 Difference]: Without dead ends: 9864 [2022-11-16 11:14:03,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:14:03,545 INFO L413 NwaCegarLoop]: 1915 mSDtfsCounter, 233 mSDsluCounter, 5535 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 7450 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:14:03,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 7450 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:14:03,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9864 states. [2022-11-16 11:14:04,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9864 to 8731. [2022-11-16 11:14:04,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8731 states, 5982 states have (on average 1.3595787362086258) internal successors, (8133), 6190 states have internal predecessors, (8133), 2270 states have call successors, (2270), 479 states have call predecessors, (2270), 478 states have return successors, (2264), 2229 states have call predecessors, (2264), 2252 states have call successors, (2264) [2022-11-16 11:14:04,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8731 states to 8731 states and 12667 transitions. [2022-11-16 11:14:04,327 INFO L78 Accepts]: Start accepts. Automaton has 8731 states and 12667 transitions. Word has length 75 [2022-11-16 11:14:04,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:14:04,328 INFO L495 AbstractCegarLoop]: Abstraction has 8731 states and 12667 transitions. [2022-11-16 11:14:04,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 11:14:04,328 INFO L276 IsEmpty]: Start isEmpty. Operand 8731 states and 12667 transitions. [2022-11-16 11:14:04,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-16 11:14:04,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:14:04,333 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:04,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:14:04,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:14:04,559 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:14:04,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:04,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1375386248, now seen corresponding path program 1 times [2022-11-16 11:14:04,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:14:04,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429422234] [2022-11-16 11:14:04,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:04,562 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:14:04,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:14:04,564 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:14:04,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-16 11:14:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:06,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 1502 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-16 11:14:06,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:14:09,841 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-16 11:14:09,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:14:09,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:14:09,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429422234] [2022-11-16 11:14:09,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429422234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:09,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:09,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:14:09,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852521893] [2022-11-16 11:14:09,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:09,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:14:09,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:14:09,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:14:09,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:14:09,844 INFO L87 Difference]: Start difference. First operand 8731 states and 12667 transitions. Second operand has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-16 11:14:12,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:14:14,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:14:16,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:14:18,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:15:18,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:18,254 INFO L93 Difference]: Finished difference Result 25556 states and 37375 transitions. [2022-11-16 11:15:18,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:15:18,256 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2022-11-16 11:15:18,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:18,397 INFO L225 Difference]: With dead ends: 25556 [2022-11-16 11:15:18,398 INFO L226 Difference]: Without dead ends: 16840 [2022-11-16 11:15:18,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:15:18,452 INFO L413 NwaCegarLoop]: 2171 mSDtfsCounter, 2642 mSDsluCounter, 20281 mSDsCounter, 0 mSdLazyCounter, 3211 mSolverCounterSat, 245 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2716 SdHoareTripleChecker+Valid, 22452 SdHoareTripleChecker+Invalid, 3460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 3211 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:15:18,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2716 Valid, 22452 Invalid, 3460 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [245 Valid, 3211 Invalid, 4 Unknown, 0 Unchecked, 63.6s Time] [2022-11-16 11:15:18,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16840 states. [2022-11-16 11:15:20,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16840 to 15138. [2022-11-16 11:15:20,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15138 states, 10368 states have (on average 1.3611111111111112) internal successors, (14112), 10729 states have internal predecessors, (14112), 3940 states have call successors, (3940), 828 states have call predecessors, (3940), 829 states have return successors, (3943), 3874 states have call predecessors, (3943), 3922 states have call successors, (3943) [2022-11-16 11:15:20,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15138 states to 15138 states and 21995 transitions. [2022-11-16 11:15:20,139 INFO L78 Accepts]: Start accepts. Automaton has 15138 states and 21995 transitions. Word has length 77 [2022-11-16 11:15:20,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:20,141 INFO L495 AbstractCegarLoop]: Abstraction has 15138 states and 21995 transitions. [2022-11-16 11:15:20,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-16 11:15:20,141 INFO L276 IsEmpty]: Start isEmpty. Operand 15138 states and 21995 transitions. [2022-11-16 11:15:20,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 11:15:20,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:20,145 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:15:20,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:15:20,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:15:20,371 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:15:20,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:20,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1342262673, now seen corresponding path program 1 times [2022-11-16 11:15:20,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:15:20,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916541809] [2022-11-16 11:15:20,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:20,374 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:15:20,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:15:20,375 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:15:20,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-16 11:15:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:22,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 1523 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:15:22,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:15:24,572 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-16 11:15:24,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:15:24,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:15:24,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1916541809] [2022-11-16 11:15:24,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1916541809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:24,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:24,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:15:24,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455810380] [2022-11-16 11:15:24,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:24,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:15:24,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:15:24,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:15:24,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:24,576 INFO L87 Difference]: Start difference. First operand 15138 states and 21995 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:15:26,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:26,760 INFO L93 Difference]: Finished difference Result 45361 states and 65923 transitions. [2022-11-16 11:15:26,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:15:26,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 83 [2022-11-16 11:15:26,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:26,972 INFO L225 Difference]: With dead ends: 45361 [2022-11-16 11:15:26,973 INFO L226 Difference]: Without dead ends: 30235 [2022-11-16 11:15:27,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:27,163 INFO L413 NwaCegarLoop]: 2114 mSDtfsCounter, 1608 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 3756 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:15:27,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 3756 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:15:27,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30235 states. [2022-11-16 11:15:30,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30235 to 30186. [2022-11-16 11:15:30,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30186 states, 20687 states have (on average 1.3614347174554067) internal successors, (28164), 21398 states have internal predecessors, (28164), 7848 states have call successors, (7848), 1646 states have call predecessors, (7848), 1650 states have return successors, (7870), 7729 states have call predecessors, (7870), 7828 states have call successors, (7870) [2022-11-16 11:15:30,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30186 states to 30186 states and 43882 transitions. [2022-11-16 11:15:30,473 INFO L78 Accepts]: Start accepts. Automaton has 30186 states and 43882 transitions. Word has length 83 [2022-11-16 11:15:30,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:30,474 INFO L495 AbstractCegarLoop]: Abstraction has 30186 states and 43882 transitions. [2022-11-16 11:15:30,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:15:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand 30186 states and 43882 transitions. [2022-11-16 11:15:30,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-16 11:15:30,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:30,480 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:15:30,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:15:30,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:15:30,695 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:15:30,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:30,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1154703788, now seen corresponding path program 1 times [2022-11-16 11:15:30,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:15:30,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372830876] [2022-11-16 11:15:30,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:30,698 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:15:30,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:15:30,699 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:15:30,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-16 11:15:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:32,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1543 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:15:32,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:15:33,899 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-16 11:15:33,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:15:33,900 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:15:33,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372830876] [2022-11-16 11:15:33,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372830876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:33,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:33,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:15:33,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801799732] [2022-11-16 11:15:33,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:33,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:15:33,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:15:33,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:15:33,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:33,902 INFO L87 Difference]: Start difference. First operand 30186 states and 43882 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 11:15:36,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:15:38,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:38,748 INFO L93 Difference]: Finished difference Result 60364 states and 87749 transitions. [2022-11-16 11:15:38,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:15:38,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2022-11-16 11:15:38,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:38,936 INFO L225 Difference]: With dead ends: 60364 [2022-11-16 11:15:38,936 INFO L226 Difference]: Without dead ends: 30193 [2022-11-16 11:15:39,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:39,044 INFO L413 NwaCegarLoop]: 3221 mSDtfsCounter, 1588 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1588 SdHoareTripleChecker+Valid, 4891 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:15:39,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1588 Valid, 4891 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-11-16 11:15:39,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30193 states. [2022-11-16 11:15:42,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30193 to 30167. [2022-11-16 11:15:42,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30167 states, 20668 states have (on average 1.3609928391716664) internal successors, (28129), 21381 states have internal predecessors, (28129), 7848 states have call successors, (7848), 1646 states have call predecessors, (7848), 1650 states have return successors, (7870), 7727 states have call predecessors, (7870), 7828 states have call successors, (7870) [2022-11-16 11:15:42,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30167 states to 30167 states and 43847 transitions. [2022-11-16 11:15:42,253 INFO L78 Accepts]: Start accepts. Automaton has 30167 states and 43847 transitions. Word has length 92 [2022-11-16 11:15:42,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:42,254 INFO L495 AbstractCegarLoop]: Abstraction has 30167 states and 43847 transitions. [2022-11-16 11:15:42,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 11:15:42,254 INFO L276 IsEmpty]: Start isEmpty. Operand 30167 states and 43847 transitions. [2022-11-16 11:15:42,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:15:42,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:42,260 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-16 11:15:42,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:15:42,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:15:42,483 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:15:42,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:42,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1779684316, now seen corresponding path program 1 times [2022-11-16 11:15:42,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:15:42,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682744420] [2022-11-16 11:15:42,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:42,485 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:15:42,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:15:42,487 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:15:42,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_332e7465-6220-4259-a8da-88e419795448/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-16 11:15:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:44,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 1545 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-16 11:15:44,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:15:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-11-16 11:15:58,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:15:58,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:15:58,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682744420] [2022-11-16 11:15:58,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1682744420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:58,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:58,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-16 11:15:58,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055375476] [2022-11-16 11:15:58,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:58,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 11:15:58,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:15:58,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 11:15:58,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:15:58,701 INFO L87 Difference]: Start difference. First operand 30167 states and 43847 transitions. Second operand has 22 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 16 states have internal predecessors, (55), 7 states have call successors, (14), 3 states have call predecessors, (14), 7 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2022-11-16 11:16:00,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []