./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 17:29:23,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 17:29:23,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 17:29:23,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 17:29:23,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 17:29:23,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 17:29:23,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 17:29:23,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 17:29:23,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 17:29:23,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 17:29:23,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 17:29:23,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 17:29:23,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 17:29:23,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 17:29:23,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 17:29:23,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 17:29:23,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 17:29:23,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 17:29:23,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 17:29:23,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 17:29:23,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 17:29:23,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 17:29:23,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 17:29:23,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 17:29:23,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 17:29:23,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 17:29:23,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 17:29:23,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 17:29:23,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 17:29:23,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 17:29:23,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 17:29:23,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 17:29:23,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 17:29:23,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 17:29:23,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 17:29:23,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 17:29:23,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 17:29:23,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 17:29:23,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 17:29:23,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 17:29:23,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 17:29:23,993 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 17:29:24,020 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 17:29:24,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 17:29:24,021 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 17:29:24,021 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 17:29:24,022 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 17:29:24,022 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 17:29:24,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 17:29:24,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 17:29:24,023 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 17:29:24,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 17:29:24,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 17:29:24,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 17:29:24,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 17:29:24,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 17:29:24,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 17:29:24,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 17:29:24,024 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 17:29:24,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 17:29:24,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 17:29:24,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 17:29:24,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 17:29:24,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:29:24,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 17:29:24,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 17:29:24,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 17:29:24,026 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 17:29:24,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 17:29:24,026 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 17:29:24,026 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 17:29:24,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 17:29:24,027 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 17:29:24,027 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 [2021-12-21 17:29:24,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 17:29:24,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 17:29:24,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 17:29:24,245 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 17:29:24,245 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 17:29:24,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-12-21 17:29:24,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ea85d206/7828bea3e2694a0fa797b1117e1783aa/FLAG24b2bae29 [2021-12-21 17:29:24,925 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 17:29:24,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-12-21 17:29:24,970 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ea85d206/7828bea3e2694a0fa797b1117e1783aa/FLAG24b2bae29 [2021-12-21 17:29:25,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ea85d206/7828bea3e2694a0fa797b1117e1783aa [2021-12-21 17:29:25,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 17:29:25,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 17:29:25,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 17:29:25,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 17:29:25,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 17:29:25,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:29:25" (1/1) ... [2021-12-21 17:29:25,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22454cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:29:25, skipping insertion in model container [2021-12-21 17:29:25,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:29:25" (1/1) ... [2021-12-21 17:29:25,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 17:29:25,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 17:29:27,954 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2021-12-21 17:29:27,957 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2021-12-21 17:29:27,957 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2021-12-21 17:29:27,958 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2021-12-21 17:29:27,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:29:28,022 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 17:29:28,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2021-12-21 17:29:28,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2021-12-21 17:29:28,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2021-12-21 17:29:28,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2021-12-21 17:29:28,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:29:28,651 INFO L208 MainTranslator]: Completed translation [2021-12-21 17:29:28,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:29:28 WrapperNode [2021-12-21 17:29:28,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 17:29:28,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 17:29:28,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 17:29:28,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 17:29:28,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:29:28" (1/1) ... [2021-12-21 17:29:28,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:29:28" (1/1) ... [2021-12-21 17:29:28,981 INFO L137 Inliner]: procedures = 543, calls = 4106, calls flagged for inlining = 313, calls inlined = 291, statements flattened = 8482 [2021-12-21 17:29:28,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 17:29:28,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 17:29:28,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 17:29:28,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 17:29:28,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:29:28" (1/1) ... [2021-12-21 17:29:28,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:29:28" (1/1) ... [2021-12-21 17:29:29,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:29:28" (1/1) ... [2021-12-21 17:29:29,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:29:28" (1/1) ... [2021-12-21 17:29:29,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:29:28" (1/1) ... [2021-12-21 17:29:29,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:29:28" (1/1) ... [2021-12-21 17:29:29,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:29:28" (1/1) ... [2021-12-21 17:29:29,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 17:29:29,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 17:29:29,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 17:29:29,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 17:29:29,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:29:28" (1/1) ... [2021-12-21 17:29:29,371 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:29:29,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 17:29:29,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 17:29:29,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 17:29:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2021-12-21 17:29:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2021-12-21 17:29:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 17:29:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 17:29:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2021-12-21 17:29:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2021-12-21 17:29:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 17:29:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 17:29:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure alx_halt [2021-12-21 17:29:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_halt [2021-12-21 17:29:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_txbuf [2021-12-21 17:29:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_txbuf [2021-12-21 17:29:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-12-21 17:29:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-12-21 17:29:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure alx_suspend [2021-12-21 17:29:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_suspend [2021-12-21 17:29:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_read_phy_reg [2021-12-21 17:29:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_read_phy_reg [2021-12-21 17:29:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-21 17:29:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-21 17:29:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_reg [2021-12-21 17:29:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_reg [2021-12-21 17:29:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-21 17:29:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-21 17:29:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-21 17:29:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-21 17:29:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_resume [2021-12-21 17:29:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_resume [2021-12-21 17:29:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tx_timeout [2021-12-21 17:29:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tx_timeout [2021-12-21 17:29:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_enable [2021-12-21 17:29:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_enable [2021-12-21 17:29:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 17:29:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 17:29:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem16 [2021-12-21 17:29:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem16 [2021-12-21 17:29:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_disable [2021-12-21 17:29:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_disable [2021-12-21 17:29:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-21 17:29:29,454 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-21 17:29:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-21 17:29:29,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-21 17:29:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-21 17:29:29,454 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-21 17:29:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-21 17:29:29,454 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-21 17:29:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure alx_activate [2021-12-21 17:29:29,455 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_activate [2021-12-21 17:29:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure alx_remove [2021-12-21 17:29:29,455 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_remove [2021-12-21 17:29:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 17:29:29,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 17:29:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 17:29:29,457 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 17:29:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_msi [2021-12-21 17:29:29,457 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_msi [2021-12-21 17:29:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-12-21 17:29:29,458 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-12-21 17:29:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 17:29:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-21 17:29:29,458 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-21 17:29:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_write [2021-12-21 17:29:29,458 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_write [2021-12-21 17:29:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-21 17:29:29,459 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-21 17:29:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-12-21 17:29:29,459 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-12-21 17:29:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_reg [2021-12-21 17:29:29,460 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_reg [2021-12-21 17:29:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-12-21 17:29:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_ext [2021-12-21 17:29:29,460 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_ext [2021-12-21 17:29:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 17:29:29,460 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 17:29:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-21 17:29:29,460 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-21 17:29:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 17:29:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure ethadv_to_hw_cfg [2021-12-21 17:29:29,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ethadv_to_hw_cfg [2021-12-21 17:29:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure alx_stop [2021-12-21 17:29:29,461 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_stop [2021-12-21 17:29:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 17:29:29,461 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 17:29:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure alx_resume [2021-12-21 17:29:29,462 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_resume [2021-12-21 17:29:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-21 17:29:29,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-21 17:29:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 17:29:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_link_check [2021-12-21 17:29:29,463 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_link_check [2021-12-21 17:29:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-21 17:29:29,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-21 17:29:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 17:29:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-21 17:29:29,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-21 17:29:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 17:29:29,463 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 17:29:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-21 17:29:29,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-21 17:29:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_open [2021-12-21 17:29:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_open [2021-12-21 17:29:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_core [2021-12-21 17:29:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_core [2021-12-21 17:29:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-21 17:29:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-21 17:29:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-21 17:29:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-21 17:29:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure alx_update_hw_stats [2021-12-21 17:29:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_update_hw_stats [2021-12-21 17:29:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem32 [2021-12-21 17:29:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem32 [2021-12-21 17:29:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-21 17:29:29,466 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-21 17:29:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 17:29:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-21 17:29:29,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-21 17:29:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-21 17:29:29,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-21 17:29:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-12-21 17:29:29,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-12-21 17:29:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_dbg [2021-12-21 17:29:29,469 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_dbg [2021-12-21 17:29:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-21 17:29:29,473 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-21 17:29:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure alx_netif_stop [2021-12-21 17:29:29,473 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_netif_stop [2021-12-21 17:29:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 17:29:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-21 17:29:29,474 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-21 17:29:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 17:29:29,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 17:29:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 17:29:29,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 17:29:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 17:29:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-21 17:29:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_giga [2021-12-21 17:29:29,474 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_giga [2021-12-21 17:29:29,475 INFO L130 BoogieDeclarations]: Found specification of procedure alx_poll_controller [2021-12-21 17:29:29,475 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_poll_controller [2021-12-21 17:29:29,475 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_pcie [2021-12-21 17:29:29,475 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_pcie [2021-12-21 17:29:29,475 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:29:29,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:29:29,475 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:29:29,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:29:29,475 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2021-12-21 17:29:29,475 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2021-12-21 17:29:29,475 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_reset [2021-12-21 17:29:29,476 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_reset [2021-12-21 17:29:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_legacy [2021-12-21 17:29:29,476 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_legacy [2021-12-21 17:29:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure alx_refill_rx_ring [2021-12-21 17:29:29,476 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_refill_rx_ring [2021-12-21 17:29:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_dbg [2021-12-21 17:29:29,476 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_dbg [2021-12-21 17:29:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-21 17:29:29,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-21 17:29:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-21 17:29:29,477 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-21 17:29:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 17:29:29,477 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 17:29:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_macaddr [2021-12-21 17:29:29,477 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_macaddr [2021-12-21 17:29:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-21 17:29:29,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-21 17:29:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-12-21 17:29:29,477 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-12-21 17:29:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure alx_speed_to_ethadv [2021-12-21 17:29:29,477 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_speed_to_ethadv [2021-12-21 17:29:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-21 17:29:29,478 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-21 17:29:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_rings [2021-12-21 17:29:29,478 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_rings [2021-12-21 17:29:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 17:29:29,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 17:29:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-21 17:29:29,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-21 17:29:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-12-21 17:29:29,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-12-21 17:29:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 17:29:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 17:29:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 17:29:29,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 17:29:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-12-21 17:29:29,479 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-12-21 17:29:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-21 17:29:29,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-21 17:29:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-21 17:29:29,480 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-21 17:29:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-21 17:29:29,480 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-21 17:29:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-21 17:29:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure alx_open [2021-12-21 17:29:29,480 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_open [2021-12-21 17:29:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-12-21 17:29:29,480 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-12-21 17:29:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-21 17:29:29,481 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-21 17:29:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_with_cr [2021-12-21 17:29:29,481 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_with_cr [2021-12-21 17:29:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-21 17:29:29,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-21 17:29:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2021-12-21 17:29:29,481 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2021-12-21 17:29:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_supported_speeds [2021-12-21 17:29:29,481 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_supported_speeds [2021-12-21 17:29:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 17:29:29,482 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 17:29:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_macaddr [2021-12-21 17:29:29,482 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_macaddr [2021-12-21 17:29:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_mem32 [2021-12-21 17:29:29,482 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_mem32 [2021-12-21 17:29:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-21 17:29:29,482 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-21 17:29:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 17:29:29,482 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 17:29:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-21 17:29:29,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-21 17:29:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-12-21 17:29:29,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-12-21 17:29:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-21 17:29:29,483 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-21 17:29:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-21 17:29:29,483 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-21 17:29:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 17:29:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-21 17:29:29,483 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-21 17:29:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit_rings [2021-12-21 17:29:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit_rings [2021-12-21 17:29:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_reg [2021-12-21 17:29:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_reg [2021-12-21 17:29:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-21 17:29:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-21 17:29:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_buffers [2021-12-21 17:29:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_buffers [2021-12-21 17:29:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-21 17:29:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-21 17:29:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-12-21 17:29:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-12-21 17:29:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 17:29:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 17:29:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_mdio_idle [2021-12-21 17:29:29,487 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_mdio_idle [2021-12-21 17:29:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-21 17:29:29,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-21 17:29:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-21 17:29:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-21 17:29:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_handle [2021-12-21 17:29:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_handle [2021-12-21 17:29:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-21 17:29:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-21 17:29:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-21 17:29:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-21 17:29:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-21 17:29:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-21 17:29:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 17:29:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 17:29:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-12-21 17:29:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-12-21 17:29:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-21 17:29:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-21 17:29:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-21 17:29:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-21 17:29:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2021-12-21 17:29:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2021-12-21 17:29:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-21 17:29:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-21 17:29:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 17:29:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 17:29:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure alx_is_rev_a [2021-12-21 17:29:29,491 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_is_rev_a [2021-12-21 17:29:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-21 17:29:29,491 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-21 17:29:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_core [2021-12-21 17:29:29,491 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_core [2021-12-21 17:29:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 17:29:29,491 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 17:29:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_ext [2021-12-21 17:29:29,491 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_ext [2021-12-21 17:29:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 17:29:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 17:29:29,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 17:29:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_phy_link [2021-12-21 17:29:29,492 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_phy_link [2021-12-21 17:29:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-21 17:29:29,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-21 17:29:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit [2021-12-21 17:29:29,492 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit [2021-12-21 17:29:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tpd_avail [2021-12-21 17:29:29,492 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tpd_avail [2021-12-21 17:29:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure alx_setup_speed_duplex [2021-12-21 17:29:29,492 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_setup_speed_duplex [2021-12-21 17:29:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-21 17:29:29,493 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-21 17:29:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_stop [2021-12-21 17:29:29,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_stop [2021-12-21 17:29:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-21 17:29:29,493 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-21 17:29:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-12-21 17:29:29,493 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-12-21 17:29:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure alx_enable_aspm [2021-12-21 17:29:29,493 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_enable_aspm [2021-12-21 17:29:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_rx_mode [2021-12-21 17:29:29,494 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_rx_mode [2021-12-21 17:29:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_revision [2021-12-21 17:29:29,494 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_revision [2021-12-21 17:29:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_set_rx_mode [2021-12-21 17:29:29,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_set_rx_mode [2021-12-21 17:29:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_write_phy_reg [2021-12-21 17:29:29,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_write_phy_reg [2021-12-21 17:29:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-12-21 17:29:29,494 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-12-21 17:29:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-12-21 17:29:29,494 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-12-21 17:29:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-21 17:29:29,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-21 17:29:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-21 17:29:29,495 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-21 17:29:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-12-21 17:29:29,495 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-12-21 17:29:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure alx_configure [2021-12-21 17:29:29,495 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_configure [2021-12-21 17:29:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_phy [2021-12-21 17:29:29,495 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_phy [2021-12-21 17:29:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-12-21 17:29:29,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-12-21 17:29:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-21 17:29:29,496 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-21 17:29:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-21 17:29:29,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-21 17:29:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-21 17:29:29,496 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-21 17:29:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 17:29:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-21 17:29:29,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-21 17:29:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2021-12-21 17:29:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2021-12-21 17:29:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_mac [2021-12-21 17:29:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_mac [2021-12-21 17:29:30,373 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 17:29:30,375 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 17:29:30,534 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 17:29:38,043 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-21 17:29:38,178 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 17:29:38,203 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 17:29:38,203 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-12-21 17:29:38,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:29:38 BoogieIcfgContainer [2021-12-21 17:29:38,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 17:29:38,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 17:29:38,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 17:29:38,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 17:29:38,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 05:29:25" (1/3) ... [2021-12-21 17:29:38,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab5192a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:29:38, skipping insertion in model container [2021-12-21 17:29:38,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:29:28" (2/3) ... [2021-12-21 17:29:38,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab5192a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:29:38, skipping insertion in model container [2021-12-21 17:29:38,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:29:38" (3/3) ... [2021-12-21 17:29:38,213 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-12-21 17:29:38,222 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 17:29:38,222 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-21 17:29:38,270 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 17:29:38,283 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 17:29:38,284 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-21 17:29:38,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 3037 states, 2051 states have (on average 1.273037542662116) internal successors, (2611), 2096 states have internal predecessors, (2611), 828 states have call successors, (828), 160 states have call predecessors, (828), 159 states have return successors, (819), 804 states have call predecessors, (819), 819 states have call successors, (819) [2021-12-21 17:29:38,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-21 17:29:38,358 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:29:38,358 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:29:38,359 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 17:29:38,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:29:38,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1301053960, now seen corresponding path program 1 times [2021-12-21 17:29:38,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:29:38,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819187893] [2021-12-21 17:29:38,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:29:38,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:29:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:29:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:29:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:29:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:29:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:29:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:29:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:29:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:29:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:29:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:29:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:29:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 17:29:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 17:29:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 17:29:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 17:29:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:29:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 17:29:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-21 17:29:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:39,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2021-12-21 17:29:39,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:29:39,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819187893] [2021-12-21 17:29:39,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819187893] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:29:39,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:29:39,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:29:39,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088145855] [2021-12-21 17:29:39,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:29:39,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:29:39,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:29:39,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:29:39,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:29:39,387 INFO L87 Difference]: Start difference. First operand has 3037 states, 2051 states have (on average 1.273037542662116) internal successors, (2611), 2096 states have internal predecessors, (2611), 828 states have call successors, (828), 160 states have call predecessors, (828), 159 states have return successors, (819), 804 states have call predecessors, (819), 819 states have call successors, (819) Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-21 17:29:44,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:29:44,529 INFO L93 Difference]: Finished difference Result 9063 states and 12947 transitions. [2021-12-21 17:29:44,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:29:44,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 203 [2021-12-21 17:29:44,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:29:44,595 INFO L225 Difference]: With dead ends: 9063 [2021-12-21 17:29:44,595 INFO L226 Difference]: Without dead ends: 6049 [2021-12-21 17:29:44,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:29:44,614 INFO L933 BasicCegarLoop]: 4277 mSDtfsCounter, 5294 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 2928 mSolverCounterSat, 2662 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6005 SdHoareTripleChecker+Valid, 8705 SdHoareTripleChecker+Invalid, 5590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2662 IncrementalHoareTripleChecker+Valid, 2928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-21 17:29:44,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6005 Valid, 8705 Invalid, 5590 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2662 Valid, 2928 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-12-21 17:29:44,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6049 states. [2021-12-21 17:29:44,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6049 to 5833. [2021-12-21 17:29:44,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5833 states, 3938 states have (on average 1.2600304723209752) internal successors, (4962), 4017 states have internal predecessors, (4962), 1580 states have call successors, (1580), 314 states have call predecessors, (1580), 313 states have return successors, (1577), 1555 states have call predecessors, (1577), 1577 states have call successors, (1577) [2021-12-21 17:29:44,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5833 states to 5833 states and 8119 transitions. [2021-12-21 17:29:44,913 INFO L78 Accepts]: Start accepts. Automaton has 5833 states and 8119 transitions. Word has length 203 [2021-12-21 17:29:44,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:29:44,916 INFO L470 AbstractCegarLoop]: Abstraction has 5833 states and 8119 transitions. [2021-12-21 17:29:44,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-21 17:29:44,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5833 states and 8119 transitions. [2021-12-21 17:29:44,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-12-21 17:29:44,924 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:29:44,925 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:29:44,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 17:29:44,925 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 17:29:44,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:29:44,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1310231461, now seen corresponding path program 1 times [2021-12-21 17:29:44,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:29:44,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574663066] [2021-12-21 17:29:44,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:29:44,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:29:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:29:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:29:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:29:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:29:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:29:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:29:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:29:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:29:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:29:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:29:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:29:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 17:29:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 17:29:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 17:29:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 17:29:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:29:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 17:29:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-21 17:29:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-21 17:29:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:45,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2021-12-21 17:29:45,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:29:45,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574663066] [2021-12-21 17:29:45,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574663066] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:29:45,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:29:45,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:29:45,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095172243] [2021-12-21 17:29:45,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:29:45,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:29:45,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:29:45,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:29:45,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:29:45,448 INFO L87 Difference]: Start difference. First operand 5833 states and 8119 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-21 17:29:50,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:29:50,500 INFO L93 Difference]: Finished difference Result 14000 states and 19553 transitions. [2021-12-21 17:29:50,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:29:50,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 224 [2021-12-21 17:29:50,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:29:50,543 INFO L225 Difference]: With dead ends: 14000 [2021-12-21 17:29:50,543 INFO L226 Difference]: Without dead ends: 8204 [2021-12-21 17:29:50,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:29:50,568 INFO L933 BasicCegarLoop]: 4152 mSDtfsCounter, 4701 mSDsluCounter, 4383 mSDsCounter, 0 mSdLazyCounter, 2859 mSolverCounterSat, 2511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5306 SdHoareTripleChecker+Valid, 8535 SdHoareTripleChecker+Invalid, 5370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2511 IncrementalHoareTripleChecker+Valid, 2859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-21 17:29:50,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5306 Valid, 8535 Invalid, 5370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2511 Valid, 2859 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-12-21 17:29:50,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8204 states. [2021-12-21 17:29:50,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8204 to 7874. [2021-12-21 17:29:50,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7874 states, 5330 states have (on average 1.2545966228893057) internal successors, (6687), 5435 states have internal predecessors, (6687), 2102 states have call successors, (2102), 442 states have call predecessors, (2102), 440 states have return successors, (2099), 2065 states have call predecessors, (2099), 2099 states have call successors, (2099) [2021-12-21 17:29:50,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7874 states to 7874 states and 10888 transitions. [2021-12-21 17:29:50,887 INFO L78 Accepts]: Start accepts. Automaton has 7874 states and 10888 transitions. Word has length 224 [2021-12-21 17:29:50,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:29:50,888 INFO L470 AbstractCegarLoop]: Abstraction has 7874 states and 10888 transitions. [2021-12-21 17:29:50,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-21 17:29:50,889 INFO L276 IsEmpty]: Start isEmpty. Operand 7874 states and 10888 transitions. [2021-12-21 17:29:50,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-12-21 17:29:50,893 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:29:50,893 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:29:50,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 17:29:50,894 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 17:29:50,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:29:50,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2076824571, now seen corresponding path program 1 times [2021-12-21 17:29:50,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:29:50,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35292779] [2021-12-21 17:29:50,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:29:50,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:29:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:29:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:29:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:29:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:29:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:29:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:29:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:29:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:29:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:29:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:29:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:29:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 17:29:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 17:29:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 17:29:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 17:29:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:29:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 17:29:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-21 17:29:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:29:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:29:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-21 17:29:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:51,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1132 trivial. 0 not checked. [2021-12-21 17:29:51,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:29:51,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35292779] [2021-12-21 17:29:51,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35292779] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:29:51,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:29:51,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:29:51,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110748893] [2021-12-21 17:29:51,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:29:51,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:29:51,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:29:51,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:29:51,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:29:51,351 INFO L87 Difference]: Start difference. First operand 7874 states and 10888 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-21 17:29:56,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:29:56,375 INFO L93 Difference]: Finished difference Result 21440 states and 29832 transitions. [2021-12-21 17:29:56,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:29:56,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 238 [2021-12-21 17:29:56,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:29:56,525 INFO L225 Difference]: With dead ends: 21440 [2021-12-21 17:29:56,539 INFO L226 Difference]: Without dead ends: 13603 [2021-12-21 17:29:56,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:29:56,593 INFO L933 BasicCegarLoop]: 4245 mSDtfsCounter, 5212 mSDsluCounter, 4411 mSDsCounter, 0 mSdLazyCounter, 2942 mSolverCounterSat, 2650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5917 SdHoareTripleChecker+Valid, 8656 SdHoareTripleChecker+Invalid, 5592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2650 IncrementalHoareTripleChecker+Valid, 2942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-12-21 17:29:56,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5917 Valid, 8656 Invalid, 5592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2650 Valid, 2942 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-12-21 17:29:56,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13603 states. [2021-12-21 17:29:56,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13603 to 13055. [2021-12-21 17:29:56,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13055 states, 8835 states have (on average 1.2529711375212225) internal successors, (11070), 9019 states have internal predecessors, (11070), 3485 states have call successors, (3485), 736 states have call predecessors, (3485), 733 states have return successors, (3482), 3416 states have call predecessors, (3482), 3482 states have call successors, (3482) [2021-12-21 17:29:56,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13055 states to 13055 states and 18037 transitions. [2021-12-21 17:29:56,980 INFO L78 Accepts]: Start accepts. Automaton has 13055 states and 18037 transitions. Word has length 238 [2021-12-21 17:29:56,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:29:56,981 INFO L470 AbstractCegarLoop]: Abstraction has 13055 states and 18037 transitions. [2021-12-21 17:29:56,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-21 17:29:56,981 INFO L276 IsEmpty]: Start isEmpty. Operand 13055 states and 18037 transitions. [2021-12-21 17:29:56,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-12-21 17:29:56,988 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:29:56,989 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 16, 16, 16, 16, 16, 16, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:29:56,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 17:29:56,990 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 17:29:56,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:29:56,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1447831510, now seen corresponding path program 1 times [2021-12-21 17:29:56,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:29:56,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501067708] [2021-12-21 17:29:56,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:29:56,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:29:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:29:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:29:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:29:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:29:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:29:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:29:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:29:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:29:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:29:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:29:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:29:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 17:29:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 17:29:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 17:29:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 17:29:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:29:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 17:29:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-21 17:29:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-21 17:29:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-21 17:29:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-21 17:29:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:29:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-21 17:29:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-21 17:29:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-21 17:29:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:29:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1314 trivial. 0 not checked. [2021-12-21 17:29:57,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:29:57,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501067708] [2021-12-21 17:29:57,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501067708] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:29:57,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:29:57,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:29:57,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208987128] [2021-12-21 17:29:57,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:29:57,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:29:57,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:29:57,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:29:57,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:29:57,532 INFO L87 Difference]: Start difference. First operand 13055 states and 18037 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-21 17:30:01,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:30:01,480 INFO L93 Difference]: Finished difference Result 35139 states and 48906 transitions. [2021-12-21 17:30:01,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:30:01,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 259 [2021-12-21 17:30:01,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:30:01,584 INFO L225 Difference]: With dead ends: 35139 [2021-12-21 17:30:01,586 INFO L226 Difference]: Without dead ends: 24460 [2021-12-21 17:30:01,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:30:01,634 INFO L933 BasicCegarLoop]: 6972 mSDtfsCounter, 4250 mSDsluCounter, 5561 mSDsCounter, 0 mSdLazyCounter, 2982 mSolverCounterSat, 1979 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4956 SdHoareTripleChecker+Valid, 12533 SdHoareTripleChecker+Invalid, 4961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1979 IncrementalHoareTripleChecker+Valid, 2982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-21 17:30:01,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4956 Valid, 12533 Invalid, 4961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1979 Valid, 2982 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-21 17:30:01,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24460 states. [2021-12-21 17:30:02,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24460 to 23495. [2021-12-21 17:30:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23495 states, 15911 states have (on average 1.2537238388536234) internal successors, (19948), 16231 states have internal predecessors, (19948), 6263 states have call successors, (6263), 1322 states have call predecessors, (6263), 1319 states have return successors, (6260), 6154 states have call predecessors, (6260), 6260 states have call successors, (6260) [2021-12-21 17:30:02,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23495 states to 23495 states and 32471 transitions. [2021-12-21 17:30:02,654 INFO L78 Accepts]: Start accepts. Automaton has 23495 states and 32471 transitions. Word has length 259 [2021-12-21 17:30:02,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:30:02,655 INFO L470 AbstractCegarLoop]: Abstraction has 23495 states and 32471 transitions. [2021-12-21 17:30:02,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-21 17:30:02,655 INFO L276 IsEmpty]: Start isEmpty. Operand 23495 states and 32471 transitions. [2021-12-21 17:30:02,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-12-21 17:30:02,662 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:30:02,662 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 16, 16, 16, 16, 16, 16, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:30:02,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 17:30:02,662 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 17:30:02,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:30:02,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1581845016, now seen corresponding path program 1 times [2021-12-21 17:30:02,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:30:02,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249838430] [2021-12-21 17:30:02,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:30:02,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:30:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:30:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:30:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:30:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:30:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:30:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:30:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:30:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:30:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:02,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:30:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:30:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:30:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 17:30:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 17:30:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 17:30:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 17:30:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:30:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 17:30:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-21 17:30:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-21 17:30:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-21 17:30:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-21 17:30:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-21 17:30:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-21 17:30:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-21 17:30:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:03,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1324 trivial. 0 not checked. [2021-12-21 17:30:03,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:30:03,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249838430] [2021-12-21 17:30:03,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249838430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:30:03,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:30:03,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:30:03,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542406116] [2021-12-21 17:30:03,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:30:03,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:30:03,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:30:03,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:30:03,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:30:03,127 INFO L87 Difference]: Start difference. First operand 23495 states and 32471 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 17:30:07,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:30:07,380 INFO L93 Difference]: Finished difference Result 24458 states and 34116 transitions. [2021-12-21 17:30:07,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:30:07,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 259 [2021-12-21 17:30:07,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:30:07,531 INFO L225 Difference]: With dead ends: 24458 [2021-12-21 17:30:07,540 INFO L226 Difference]: Without dead ends: 24403 [2021-12-21 17:30:07,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-21 17:30:07,569 INFO L933 BasicCegarLoop]: 3780 mSDtfsCounter, 4239 mSDsluCounter, 4392 mSDsCounter, 0 mSdLazyCounter, 2150 mSolverCounterSat, 1844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4630 SdHoareTripleChecker+Valid, 8172 SdHoareTripleChecker+Invalid, 3994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1844 IncrementalHoareTripleChecker+Valid, 2150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-21 17:30:07,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4630 Valid, 8172 Invalid, 3994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1844 Valid, 2150 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-21 17:30:07,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24403 states. [2021-12-21 17:30:08,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24403 to 23440. [2021-12-21 17:30:08,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23440 states, 15886 states have (on average 1.2533677451844392) internal successors, (19911), 16194 states have internal predecessors, (19911), 6236 states have call successors, (6236), 1317 states have call predecessors, (6236), 1317 states have return successors, (6236), 6141 states have call predecessors, (6236), 6236 states have call successors, (6236) [2021-12-21 17:30:08,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23440 states to 23440 states and 32383 transitions. [2021-12-21 17:30:08,445 INFO L78 Accepts]: Start accepts. Automaton has 23440 states and 32383 transitions. Word has length 259 [2021-12-21 17:30:08,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:30:08,446 INFO L470 AbstractCegarLoop]: Abstraction has 23440 states and 32383 transitions. [2021-12-21 17:30:08,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-21 17:30:08,446 INFO L276 IsEmpty]: Start isEmpty. Operand 23440 states and 32383 transitions. [2021-12-21 17:30:08,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2021-12-21 17:30:08,468 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:30:08,468 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 16, 16, 16, 16, 16, 16, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:30:08,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 17:30:08,469 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 17:30:08,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:30:08,469 INFO L85 PathProgramCache]: Analyzing trace with hash -2115038959, now seen corresponding path program 1 times [2021-12-21 17:30:08,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:30:08,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652679191] [2021-12-21 17:30:08,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:30:08,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:30:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:30:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:30:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:30:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:30:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:30:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:30:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:30:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:30:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:30:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:30:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:30:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 17:30:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 17:30:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 17:30:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 17:30:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:30:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 17:30:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-21 17:30:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-21 17:30:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-21 17:30:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-21 17:30:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-21 17:30:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-21 17:30:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-21 17:30:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-21 17:30:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-21 17:30:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1330 trivial. 0 not checked. [2021-12-21 17:30:08,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:30:08,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652679191] [2021-12-21 17:30:08,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652679191] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:30:08,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:30:08,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:30:08,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043314703] [2021-12-21 17:30:08,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:30:08,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:30:08,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:30:08,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:30:08,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:30:08,916 INFO L87 Difference]: Start difference. First operand 23440 states and 32383 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-21 17:30:14,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:30:14,586 INFO L93 Difference]: Finished difference Result 55521 states and 77146 transitions. [2021-12-21 17:30:14,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:30:14,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 288 [2021-12-21 17:30:14,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:30:14,726 INFO L225 Difference]: With dead ends: 55521 [2021-12-21 17:30:14,726 INFO L226 Difference]: Without dead ends: 34457 [2021-12-21 17:30:14,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:30:14,809 INFO L933 BasicCegarLoop]: 6705 mSDtfsCounter, 3694 mSDsluCounter, 5414 mSDsCounter, 0 mSdLazyCounter, 2905 mSolverCounterSat, 1848 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4294 SdHoareTripleChecker+Valid, 12119 SdHoareTripleChecker+Invalid, 4753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1848 IncrementalHoareTripleChecker+Valid, 2905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-21 17:30:14,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4294 Valid, 12119 Invalid, 4753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1848 Valid, 2905 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-12-21 17:30:14,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34457 states. [2021-12-21 17:30:15,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34457 to 33062. [2021-12-21 17:30:15,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33062 states, 22420 states have (on average 1.2522301516503123) internal successors, (28075), 22852 states have internal predecessors, (28075), 8768 states have call successors, (8768), 1873 states have call predecessors, (8768), 1873 states have return successors, (8768), 8633 states have call predecessors, (8768), 8768 states have call successors, (8768) [2021-12-21 17:30:15,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33062 states to 33062 states and 45611 transitions. [2021-12-21 17:30:15,963 INFO L78 Accepts]: Start accepts. Automaton has 33062 states and 45611 transitions. Word has length 288 [2021-12-21 17:30:15,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:30:15,964 INFO L470 AbstractCegarLoop]: Abstraction has 33062 states and 45611 transitions. [2021-12-21 17:30:15,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-21 17:30:15,965 INFO L276 IsEmpty]: Start isEmpty. Operand 33062 states and 45611 transitions. [2021-12-21 17:30:16,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-12-21 17:30:16,258 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:30:16,258 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 16, 16, 16, 16, 16, 16, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:30:16,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 17:30:16,259 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 17:30:16,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:30:16,259 INFO L85 PathProgramCache]: Analyzing trace with hash -543441394, now seen corresponding path program 1 times [2021-12-21 17:30:16,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:30:16,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251007667] [2021-12-21 17:30:16,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:30:16,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:30:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:30:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:30:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:30:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:30:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:30:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:30:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:30:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:30:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:30:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:30:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:30:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 17:30:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 17:30:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 17:30:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 17:30:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:30:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 17:30:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-21 17:30:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-21 17:30:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-21 17:30:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-21 17:30:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-21 17:30:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-21 17:30:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-21 17:30:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-12-21 17:30:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-21 17:30:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:30:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:30:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:30:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-21 17:30:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:30:16,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1425 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1410 trivial. 0 not checked. [2021-12-21 17:30:16,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:30:16,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251007667] [2021-12-21 17:30:16,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251007667] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:30:16,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:30:16,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:30:16,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754816755] [2021-12-21 17:30:16,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:30:16,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:30:16,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:30:16,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:30:16,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:30:16,710 INFO L87 Difference]: Start difference. First operand 33062 states and 45611 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-21 17:30:22,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:30:22,942 INFO L93 Difference]: Finished difference Result 80996 states and 112406 transitions. [2021-12-21 17:30:22,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:30:22,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 314 [2021-12-21 17:30:22,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted.