./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.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 36bb93ca3621bc77a2fce568a30c9f1e07b847a50c59f68bc973979594911c40 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 13:21:17,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 13:21:17,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 13:21:17,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 13:21:17,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 13:21:17,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 13:21:17,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 13:21:17,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 13:21:17,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 13:21:17,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 13:21:17,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 13:21:17,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 13:21:17,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 13:21:17,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 13:21:17,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 13:21:17,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 13:21:17,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 13:21:17,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 13:21:17,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 13:21:17,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 13:21:17,352 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 13:21:17,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 13:21:17,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 13:21:17,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 13:21:17,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 13:21:17,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 13:21:17,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 13:21:17,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 13:21:17,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 13:21:17,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 13:21:17,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 13:21:17,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 13:21:17,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 13:21:17,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 13:21:17,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 13:21:17,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 13:21:17,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 13:21:17,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 13:21:17,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 13:21:17,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 13:21:17,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 13:21:17,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 13:21:17,382 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 13:21:17,412 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 13:21:17,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 13:21:17,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 13:21:17,413 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 13:21:17,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 13:21:17,414 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 13:21:17,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 13:21:17,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 13:21:17,415 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 13:21:17,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 13:21:17,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 13:21:17,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 13:21:17,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 13:21:17,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 13:21:17,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 13:21:17,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 13:21:17,418 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 13:21:17,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 13:21:17,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 13:21:17,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 13:21:17,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 13:21:17,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:21:17,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 13:21:17,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 13:21:17,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 13:21:17,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 13:21:17,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 13:21:17,420 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 13:21:17,420 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 13:21:17,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 13:21:17,421 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36bb93ca3621bc77a2fce568a30c9f1e07b847a50c59f68bc973979594911c40 [2022-07-21 13:21:17,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 13:21:17,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 13:21:17,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 13:21:17,774 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 13:21:17,774 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 13:21:17,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2022-07-21 13:21:17,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d6aa6650/7f4fa0a03eb546e39dc8ab54f4be494a/FLAGd8784d400 [2022-07-21 13:21:18,699 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 13:21:18,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2022-07-21 13:21:18,752 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d6aa6650/7f4fa0a03eb546e39dc8ab54f4be494a/FLAGd8784d400 [2022-07-21 13:21:18,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d6aa6650/7f4fa0a03eb546e39dc8ab54f4be494a [2022-07-21 13:21:18,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 13:21:18,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 13:21:18,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 13:21:18,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 13:21:18,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 13:21:18,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:21:18" (1/1) ... [2022-07-21 13:21:18,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb766c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:18, skipping insertion in model container [2022-07-21 13:21:18,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:21:18" (1/1) ... [2022-07-21 13:21:18,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 13:21:18,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 13:21:22,345 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376704,376717] [2022-07-21 13:21:22,348 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376849,376862] [2022-07-21 13:21:22,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:21:22,448 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 13:21:22,905 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376704,376717] [2022-07-21 13:21:22,906 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376849,376862] [2022-07-21 13:21:22,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:21:23,096 INFO L208 MainTranslator]: Completed translation [2022-07-21 13:21:23,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:23 WrapperNode [2022-07-21 13:21:23,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 13:21:23,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 13:21:23,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 13:21:23,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 13:21:23,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:23" (1/1) ... [2022-07-21 13:21:23,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:23" (1/1) ... [2022-07-21 13:21:23,523 INFO L137 Inliner]: procedures = 490, calls = 2384, calls flagged for inlining = 232, calls inlined = 186, statements flattened = 4768 [2022-07-21 13:21:23,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 13:21:23,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 13:21:23,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 13:21:23,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 13:21:23,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:23" (1/1) ... [2022-07-21 13:21:23,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:23" (1/1) ... [2022-07-21 13:21:23,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:23" (1/1) ... [2022-07-21 13:21:23,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:23" (1/1) ... [2022-07-21 13:21:23,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:23" (1/1) ... [2022-07-21 13:21:23,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:23" (1/1) ... [2022-07-21 13:21:23,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:23" (1/1) ... [2022-07-21 13:21:24,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 13:21:24,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 13:21:24,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 13:21:24,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 13:21:24,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:23" (1/1) ... [2022-07-21 13:21:24,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:21:24,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:21:24,185 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) [2022-07-21 13:21:24,196 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 [2022-07-21 13:21:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 13:21:24,221 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 13:21:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 13:21:24,221 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 13:21:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-21 13:21:24,222 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-21 13:21:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-07-21 13:21:24,222 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-07-21 13:21:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_open [2022-07-21 13:21:24,222 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_open [2022-07-21 13:21:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 13:21:24,223 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 13:21:24,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 13:21:24,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 13:21:24,223 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-07-21 13:21:24,223 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-07-21 13:21:24,223 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-07-21 13:21:24,224 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-07-21 13:21:24,224 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-21 13:21:24,224 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-21 13:21:24,224 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 13:21:24,224 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 13:21:24,224 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-21 13:21:24,224 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-21 13:21:24,225 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_tx_db_inc_wptr [2022-07-21 13:21:24,225 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_tx_db_inc_wptr [2022-07-21 13:21:24,225 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 13:21:24,225 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 13:21:24,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 13:21:24,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 13:21:24,226 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-21 13:21:24,226 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-21 13:21:24,226 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 13:21:24,226 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 13:21:24,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 13:21:24,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 13:21:24,226 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-07-21 13:21:24,227 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-07-21 13:21:24,227 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-21 13:21:24,227 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-21 13:21:24,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 13:21:24,227 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 13:21:24,228 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 13:21:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 13:21:24,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 13:21:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-21 13:21:24,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-21 13:21:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 13:21:24,229 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-21 13:21:24,229 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-21 13:21:24,229 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 13:21:24,229 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 13:21:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 13:21:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 13:21:24,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 13:21:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure __bdx_tx_db_ptr_next [2022-07-21 13:21:24,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __bdx_tx_db_ptr_next [2022-07-21 13:21:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 13:21:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 13:21:24,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 13:21:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 13:21:24,232 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 13:21:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 13:21:24,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 13:21:24,233 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_close [2022-07-21 13:21:24,233 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_close [2022-07-21 13:21:24,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-21 13:21:24,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-21 13:21:24,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-21 13:21:24,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-21 13:21:24,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_bdx_priv [2022-07-21 13:21:24,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_bdx_priv [2022-07-21 13:21:24,234 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-21 13:21:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-21 13:21:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-21 13:21:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-21 13:21:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 13:21:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 13:21:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 13:21:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-21 13:21:24,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-21 13:21:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_restore_mac [2022-07-21 13:21:24,236 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_restore_mac [2022-07-21 13:21:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 13:21:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rx_alloc_skbs [2022-07-21 13:21:24,237 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rx_alloc_skbs [2022-07-21 13:21:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 13:21:24,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 13:21:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 13:21:24,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 13:21:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 13:21:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 13:21:24,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 13:21:24,239 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-21 13:21:24,239 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-21 13:21:24,239 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-21 13:21:24,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-21 13:21:24,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-07-21 13:21:24,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-07-21 13:21:24,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-07-21 13:21:24,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-07-21 13:21:24,240 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-21 13:21:24,240 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-21 13:21:24,240 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 13:21:24,240 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 13:21:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-21 13:21:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-21 13:21:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rxdb_available [2022-07-21 13:21:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rxdb_available [2022-07-21 13:21:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-21 13:21:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-21 13:21:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-21 13:21:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-21 13:21:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 13:21:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 13:21:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rxdb_addr_elem [2022-07-21 13:21:24,243 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rxdb_addr_elem [2022-07-21 13:21:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-07-21 13:21:24,246 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-07-21 13:21:24,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 13:21:24,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 13:21:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 13:21:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 13:21:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 13:21:24,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 13:21:24,249 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_tx_db_inc_rptr [2022-07-21 13:21:24,254 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_tx_db_inc_rptr [2022-07-21 13:21:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-21 13:21:24,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-21 13:21:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 13:21:24,255 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 13:21:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure __bdx_vlan_rx_vid [2022-07-21 13:21:24,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __bdx_vlan_rx_vid [2022-07-21 13:21:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-21 13:21:24,255 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-21 13:21:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_fifo_free [2022-07-21 13:21:24,255 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_fifo_free [2022-07-21 13:21:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_remove [2022-07-21 13:21:24,256 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_remove [2022-07-21 13:21:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 13:21:24,256 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 13:21:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 13:21:24,256 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 13:21:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-21 13:21:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-21 13:21:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 13:21:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 13:21:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 13:21:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-07-21 13:21:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-07-21 13:21:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-21 13:21:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-21 13:21:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 13:21:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 13:21:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-21 13:21:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-21 13:21:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-21 13:21:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-21 13:21:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_reset [2022-07-21 13:21:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_reset [2022-07-21 13:21:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 13:21:24,259 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 13:21:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 13:21:24,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 13:21:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rxdb_alloc_elem [2022-07-21 13:21:24,259 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rxdb_alloc_elem [2022-07-21 13:21:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_range_check [2022-07-21 13:21:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_range_check [2022-07-21 13:21:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-21 13:21:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-21 13:21:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-07-21 13:21:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-07-21 13:21:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 13:21:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 13:21:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_fifo_init [2022-07-21 13:21:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_fifo_init [2022-07-21 13:21:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 13:21:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 13:21:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_link_changed [2022-07-21 13:21:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_link_changed [2022-07-21 13:21:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 13:21:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 13:21:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 13:21:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-21 13:21:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-21 13:21:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_setmulti [2022-07-21 13:21:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_setmulti [2022-07-21 13:21:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure print_rxfd [2022-07-21 13:21:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure print_rxfd [2022-07-21 13:21:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 13:21:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 13:21:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-07-21 13:21:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-07-21 13:21:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-21 13:21:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-21 13:21:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 13:21:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 13:21:24,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 13:21:25,085 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 13:21:25,089 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 13:21:25,249 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 13:23:34,421 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-21 13:23:34,498 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 13:23:34,521 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 13:23:34,521 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 13:23:34,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:23:34 BoogieIcfgContainer [2022-07-21 13:23:34,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 13:23:34,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 13:23:34,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 13:23:34,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 13:23:34,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:21:18" (1/3) ... [2022-07-21 13:23:34,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e209232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:23:34, skipping insertion in model container [2022-07-21 13:23:34,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:23" (2/3) ... [2022-07-21 13:23:34,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e209232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:23:34, skipping insertion in model container [2022-07-21 13:23:34,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:23:34" (3/3) ... [2022-07-21 13:23:34,532 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2022-07-21 13:23:34,545 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 13:23:34,545 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-21 13:23:34,627 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 13:23:34,634 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2a555512, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4535d00b [2022-07-21 13:23:34,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-21 13:23:34,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 1678 states, 1167 states have (on average 1.2870608397600685) internal successors, (1502), 1190 states have internal predecessors, (1502), 420 states have call successors, (420), 91 states have call predecessors, (420), 90 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) [2022-07-21 13:23:34,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 13:23:34,675 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:23:34,676 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:23:34,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:23:34,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:23:34,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1898144487, now seen corresponding path program 1 times [2022-07-21 13:23:34,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:23:34,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534356695] [2022-07-21 13:23:34,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:23:34,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:23:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:36,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:23:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:36,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:23:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:36,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:23:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:36,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:23:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:36,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:23:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:36,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:23:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:36,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:23:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:36,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:23:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:36,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:23:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:36,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:23:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:36,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:23:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:36,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 13:23:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:36,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:23:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:36,257 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-21 13:23:36,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:23:36,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534356695] [2022-07-21 13:23:36,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534356695] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:23:36,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:23:36,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:23:36,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026618868] [2022-07-21 13:23:36,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:23:36,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:23:36,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:23:36,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:23:36,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:23:36,305 INFO L87 Difference]: Start difference. First operand has 1678 states, 1167 states have (on average 1.2870608397600685) internal successors, (1502), 1190 states have internal predecessors, (1502), 420 states have call successors, (420), 91 states have call predecessors, (420), 90 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-21 13:23:38,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:23:40,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:23:53,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:23:54,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:23:54,857 INFO L93 Difference]: Finished difference Result 4781 states and 6809 transitions. [2022-07-21 13:23:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:23:54,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 100 [2022-07-21 13:23:54,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:23:54,895 INFO L225 Difference]: With dead ends: 4781 [2022-07-21 13:23:54,896 INFO L226 Difference]: Without dead ends: 3053 [2022-07-21 13:23:54,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:23:54,919 INFO L413 NwaCegarLoop]: 2542 mSDtfsCounter, 2591 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 2122 mSolverCounterSat, 1243 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2925 SdHoareTripleChecker+Valid, 4443 SdHoareTripleChecker+Invalid, 3368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1243 IncrementalHoareTripleChecker+Valid, 2122 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-07-21 13:23:54,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2925 Valid, 4443 Invalid, 3368 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1243 Valid, 2122 Invalid, 3 Unknown, 0 Unchecked, 17.9s Time] [2022-07-21 13:23:54,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2022-07-21 13:23:55,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 2888. [2022-07-21 13:23:55,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2888 states, 2045 states have (on average 1.247921760391198) internal successors, (2552), 2081 states have internal predecessors, (2552), 682 states have call successors, (682), 159 states have call predecessors, (682), 159 states have return successors, (682), 677 states have call predecessors, (682), 682 states have call successors, (682) [2022-07-21 13:23:55,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 3916 transitions. [2022-07-21 13:23:55,173 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 3916 transitions. Word has length 100 [2022-07-21 13:23:55,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:23:55,175 INFO L495 AbstractCegarLoop]: Abstraction has 2888 states and 3916 transitions. [2022-07-21 13:23:55,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-21 13:23:55,176 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 3916 transitions. [2022-07-21 13:23:55,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-21 13:23:55,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:23:55,186 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:23:55,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 13:23:55,187 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:23:55,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:23:55,188 INFO L85 PathProgramCache]: Analyzing trace with hash 385585268, now seen corresponding path program 1 times [2022-07-21 13:23:55,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:23:55,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870617737] [2022-07-21 13:23:55,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:23:55,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:23:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:55,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:23:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:55,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:23:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:55,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:23:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:55,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:23:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:55,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:23:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:55,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:23:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:55,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:23:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:55,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:23:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:55,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:23:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:55,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:23:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:55,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:23:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:55,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 13:23:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:55,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 13:23:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:56,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 13:23:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:56,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 13:23:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:56,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 13:23:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:23:56,028 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-21 13:23:56,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:23:56,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870617737] [2022-07-21 13:23:56,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870617737] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:23:56,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:23:56,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:23:56,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732508891] [2022-07-21 13:23:56,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:23:56,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:23:56,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:23:56,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:23:56,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:23:56,034 INFO L87 Difference]: Start difference. First operand 2888 states and 3916 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:23:58,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:24:00,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:24:06,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:24:14,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:24:14,449 INFO L93 Difference]: Finished difference Result 8285 states and 11269 transitions. [2022-07-21 13:24:14,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:24:14,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 113 [2022-07-21 13:24:14,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:24:14,485 INFO L225 Difference]: With dead ends: 8285 [2022-07-21 13:24:14,485 INFO L226 Difference]: Without dead ends: 5412 [2022-07-21 13:24:14,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:24:14,502 INFO L413 NwaCegarLoop]: 2302 mSDtfsCounter, 3007 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 1309 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3339 SdHoareTripleChecker+Valid, 4112 SdHoareTripleChecker+Invalid, 3122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1309 IncrementalHoareTripleChecker+Valid, 1810 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-07-21 13:24:14,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3339 Valid, 4112 Invalid, 3122 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1309 Valid, 1810 Invalid, 3 Unknown, 0 Unchecked, 17.9s Time] [2022-07-21 13:24:14,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5412 states. [2022-07-21 13:24:14,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5412 to 5162. [2022-07-21 13:24:14,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5162 states, 3653 states have (on average 1.2469203394470298) internal successors, (4555), 3722 states have internal predecessors, (4555), 1205 states have call successors, (1205), 300 states have call predecessors, (1205), 302 states have return successors, (1223), 1189 states have call predecessors, (1223), 1205 states have call successors, (1223) [2022-07-21 13:24:14,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5162 states to 5162 states and 6983 transitions. [2022-07-21 13:24:14,714 INFO L78 Accepts]: Start accepts. Automaton has 5162 states and 6983 transitions. Word has length 113 [2022-07-21 13:24:14,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:24:14,717 INFO L495 AbstractCegarLoop]: Abstraction has 5162 states and 6983 transitions. [2022-07-21 13:24:14,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:24:14,717 INFO L276 IsEmpty]: Start isEmpty. Operand 5162 states and 6983 transitions. [2022-07-21 13:24:14,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 13:24:14,724 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:24:14,724 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 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] [2022-07-21 13:24:14,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 13:24:14,725 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:24:14,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:24:14,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1485353998, now seen corresponding path program 1 times [2022-07-21 13:24:14,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:24:14,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114273842] [2022-07-21 13:24:14,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:24:14,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:24:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:24:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:24:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:24:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:24:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:24:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:24:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 13:24:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:24:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 13:24:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 13:24:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:24:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 13:24:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 13:24:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 13:24:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-21 13:24:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:15,676 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-07-21 13:24:15,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:24:15,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114273842] [2022-07-21 13:24:15,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114273842] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:24:15,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:24:15,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:24:15,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209562955] [2022-07-21 13:24:15,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:24:15,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:24:15,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:24:15,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:24:15,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:24:15,683 INFO L87 Difference]: Start difference. First operand 5162 states and 6983 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 13:24:17,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:24:20,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:24:32,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:24:34,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:24:34,447 INFO L93 Difference]: Finished difference Result 12780 states and 17341 transitions. [2022-07-21 13:24:34,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:24:34,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 163 [2022-07-21 13:24:34,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:24:34,498 INFO L225 Difference]: With dead ends: 12780 [2022-07-21 13:24:34,498 INFO L226 Difference]: Without dead ends: 7633 [2022-07-21 13:24:34,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:24:34,523 INFO L413 NwaCegarLoop]: 3605 mSDtfsCounter, 2043 mSDsluCounter, 2249 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 910 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2357 SdHoareTripleChecker+Valid, 5854 SdHoareTripleChecker+Invalid, 2962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 910 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-07-21 13:24:34,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2357 Valid, 5854 Invalid, 2962 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [910 Valid, 2049 Invalid, 3 Unknown, 0 Unchecked, 18.3s Time] [2022-07-21 13:24:34,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7633 states. [2022-07-21 13:24:34,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7633 to 7287. [2022-07-21 13:24:34,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7287 states, 5165 states have (on average 1.245111326234269) internal successors, (6431), 5260 states have internal predecessors, (6431), 1687 states have call successors, (1687), 431 states have call predecessors, (1687), 433 states have return successors, (1706), 1665 states have call predecessors, (1706), 1687 states have call successors, (1706) [2022-07-21 13:24:34,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7287 states to 7287 states and 9824 transitions. [2022-07-21 13:24:34,828 INFO L78 Accepts]: Start accepts. Automaton has 7287 states and 9824 transitions. Word has length 163 [2022-07-21 13:24:34,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:24:34,828 INFO L495 AbstractCegarLoop]: Abstraction has 7287 states and 9824 transitions. [2022-07-21 13:24:34,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 13:24:34,830 INFO L276 IsEmpty]: Start isEmpty. Operand 7287 states and 9824 transitions. [2022-07-21 13:24:34,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-21 13:24:34,839 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:24:34,839 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:24:34,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 13:24:34,840 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:24:34,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:24:34,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1281973958, now seen corresponding path program 1 times [2022-07-21 13:24:34,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:24:34,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94420159] [2022-07-21 13:24:34,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:24:34,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:24:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:24:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:24:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:24:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:24:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:24:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:24:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 13:24:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:24:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 13:24:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 13:24:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:24:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 13:24:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 13:24:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 13:24:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:24:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 13:24:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 13:24:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:24:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 13:24:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-21 13:24:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-21 13:24:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-21 13:24:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 13:24:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:35,856 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-07-21 13:24:35,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:24:35,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94420159] [2022-07-21 13:24:35,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94420159] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:24:35,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:24:35,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:24:35,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444991954] [2022-07-21 13:24:35,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:24:35,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:24:35,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:24:35,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:24:35,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:24:35,859 INFO L87 Difference]: Start difference. First operand 7287 states and 9824 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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) [2022-07-21 13:24:37,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:24:40,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:24:52,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:24:54,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:24:54,252 INFO L93 Difference]: Finished difference Result 17111 states and 23136 transitions. [2022-07-21 13:24:54,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:24:54,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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 237 [2022-07-21 13:24:54,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:24:54,313 INFO L225 Difference]: With dead ends: 17111 [2022-07-21 13:24:54,313 INFO L226 Difference]: Without dead ends: 9839 [2022-07-21 13:24:54,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:24:54,345 INFO L413 NwaCegarLoop]: 3604 mSDtfsCounter, 2042 mSDsluCounter, 2256 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 903 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2355 SdHoareTripleChecker+Valid, 5860 SdHoareTripleChecker+Invalid, 2944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 903 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-07-21 13:24:54,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2355 Valid, 5860 Invalid, 2944 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [903 Valid, 2038 Invalid, 3 Unknown, 0 Unchecked, 17.9s Time] [2022-07-21 13:24:54,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9839 states. [2022-07-21 13:24:54,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9839 to 9396. [2022-07-21 13:24:54,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9396 states, 6667 states have (on average 1.2444877756112194) internal successors, (8297), 6788 states have internal predecessors, (8297), 2163 states have call successors, (2163), 562 states have call predecessors, (2163), 564 states have return successors, (2183), 2135 states have call predecessors, (2183), 2163 states have call successors, (2183) [2022-07-21 13:24:54,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9396 states to 9396 states and 12643 transitions. [2022-07-21 13:24:54,754 INFO L78 Accepts]: Start accepts. Automaton has 9396 states and 12643 transitions. Word has length 237 [2022-07-21 13:24:54,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:24:54,755 INFO L495 AbstractCegarLoop]: Abstraction has 9396 states and 12643 transitions. [2022-07-21 13:24:54,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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) [2022-07-21 13:24:54,756 INFO L276 IsEmpty]: Start isEmpty. Operand 9396 states and 12643 transitions. [2022-07-21 13:24:54,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-21 13:24:54,766 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:24:54,766 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:24:54,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 13:24:54,767 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:24:54,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:24:54,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1033827464, now seen corresponding path program 1 times [2022-07-21 13:24:54,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:24:54,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973465564] [2022-07-21 13:24:54,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:24:54,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:24:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:24:55,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:24:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:24:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:24:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:24:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:24:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 13:24:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:24:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 13:24:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 13:24:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:24:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 13:24:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 13:24:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 13:24:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:24:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 13:24:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 13:24:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:24:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:24:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 13:24:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-21 13:24:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-21 13:24:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-21 13:24:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 13:24:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:24:55,838 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2022-07-21 13:24:55,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:24:55,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973465564] [2022-07-21 13:24:55,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973465564] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:24:55,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:24:55,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 13:24:55,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048015712] [2022-07-21 13:24:55,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:24:55,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:24:55,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:24:55,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:24:55,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:24:55,840 INFO L87 Difference]: Start difference. First operand 9396 states and 12643 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-21 13:24:57,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:25:00,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:25:11,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:25:13,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:25:13,229 INFO L93 Difference]: Finished difference Result 19214 states and 26016 transitions. [2022-07-21 13:25:13,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 13:25:13,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 237 [2022-07-21 13:25:13,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:25:13,283 INFO L225 Difference]: With dead ends: 19214 [2022-07-21 13:25:13,283 INFO L226 Difference]: Without dead ends: 9833 [2022-07-21 13:25:13,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:25:13,323 INFO L413 NwaCegarLoop]: 2062 mSDtfsCounter, 2432 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 937 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2651 SdHoareTripleChecker+Valid, 3600 SdHoareTripleChecker+Invalid, 2859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 937 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-07-21 13:25:13,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2651 Valid, 3600 Invalid, 2859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [937 Valid, 1919 Invalid, 3 Unknown, 0 Unchecked, 16.9s Time] [2022-07-21 13:25:13,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9833 states. [2022-07-21 13:25:13,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9833 to 9396. [2022-07-21 13:25:13,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9396 states, 6667 states have (on average 1.2432878356082195) internal successors, (8289), 6788 states have internal predecessors, (8289), 2163 states have call successors, (2163), 562 states have call predecessors, (2163), 564 states have return successors, (2183), 2135 states have call predecessors, (2183), 2163 states have call successors, (2183) [2022-07-21 13:25:13,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9396 states to 9396 states and 12635 transitions. [2022-07-21 13:25:13,704 INFO L78 Accepts]: Start accepts. Automaton has 9396 states and 12635 transitions. Word has length 237 [2022-07-21 13:25:13,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:25:13,705 INFO L495 AbstractCegarLoop]: Abstraction has 9396 states and 12635 transitions. [2022-07-21 13:25:13,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-21 13:25:13,706 INFO L276 IsEmpty]: Start isEmpty. Operand 9396 states and 12635 transitions. [2022-07-21 13:25:13,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-07-21 13:25:13,717 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:25:13,718 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:25:13,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 13:25:13,718 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:25:13,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:25:13,719 INFO L85 PathProgramCache]: Analyzing trace with hash 75686713, now seen corresponding path program 1 times [2022-07-21 13:25:13,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:25:13,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373741227] [2022-07-21 13:25:13,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:25:13,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:25:14,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:25:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:25:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:25:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:25:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:25:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:25:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:25:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:25:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:25:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:25:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 13:25:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 13:25:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:25:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 13:25:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 13:25:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:25:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:25:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 13:25:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 13:25:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 13:25:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:25:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:25:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 13:25:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 13:25:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:25:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:25:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 13:25:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-21 13:25:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-21 13:25:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-21 13:25:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:14,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 13:25:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:25:15,111 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2022-07-21 13:25:15,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:25:15,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373741227] [2022-07-21 13:25:15,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373741227] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:25:15,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:25:15,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:25:15,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899646042] [2022-07-21 13:25:15,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:25:15,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:25:15,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:25:15,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:25:15,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:25:15,113 INFO L87 Difference]: Start difference. First operand 9396 states and 12635 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-21 13:25:17,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:25:19,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []